./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.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_label49+token_ring.03.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', '713a95fba13367522eddac239136ad149ef56d491623153a32513b25fa3198dd'] 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_label49+token_ring.03.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 713a95fba13367522eddac239136ad149ef56d491623153a32513b25fa3198dd --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:09:20,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:09:20,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:09:20,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:09:20,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:09:20,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:09:20,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:09:20,622 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:09:20,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:09:20,623 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:09:20,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:09:20,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:09:20,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:09:20,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:09:20,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:09:20,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:09:20,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:09:20,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:09:20,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:09:20,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:09:20,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:09:20,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:09:20,627 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:09:20,627 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:09:20,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:09:20,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:09:20,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:09:20,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:09:20,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:09:20,628 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 -> 713a95fba13367522eddac239136ad149ef56d491623153a32513b25fa3198dd [2024-11-07 01:09:20,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:09:20,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:09:20,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:09:20,910 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:09:20,910 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:09:20,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.cil-2.c [2024-11-07 01:09:22,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:09:22,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:09:22,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.cil-2.c [2024-11-07 01:09:23,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e24398197/44d6929647b84192a468b88a45b78347/FLAG74dfaa471 [2024-11-07 01:09:23,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e24398197/44d6929647b84192a468b88a45b78347 [2024-11-07 01:09:23,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:09:23,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:09:23,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:09:23,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:09:23,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:09:23,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:23" (1/1) ... [2024-11-07 01:09:23,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e108570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:23, skipping insertion in model container [2024-11-07 01:09:23,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:23" (1/1) ... [2024-11-07 01:09:23,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:09:24,495 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.03.cil-2.c[380593,380606] [2024-11-07 01:09:24,531 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_label49+token_ring.03.cil-2.c[383339,383352] [2024-11-07 01:09:24,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:09:24,720 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:09:25,364 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_label49+token_ring.03.cil-2.c[380593,380606] [2024-11-07 01:09:25,377 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_label49+token_ring.03.cil-2.c[383339,383352] [2024-11-07 01:09:25,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:09:25,507 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:09:25,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25 WrapperNode [2024-11-07 01:09:25,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:09:25,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:09:25,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:09:25,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:09:25,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:25,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,078 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12693 [2024-11-07 01:09:26,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:09:26,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:09:26,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:09:26,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:09:26,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,178 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,329 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 01:09:26,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:09:26,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:09:26,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:09:26,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:09:26,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (1/1) ... [2024-11-07 01:09:26,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:09:26,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:09:26,726 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 01:09:26,729 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 01:09:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:09:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:09:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:09:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:09:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:09:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:09:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:09:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:09:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:09:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:09:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:09:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:09:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:09:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:09:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:09:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:09:26,881 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:09:26,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:09:34,614 INFO L? ?]: Removed 1701 outVars from TransFormulas that were not future-live. [2024-11-07 01:09:34,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:09:34,682 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:09:34,686 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-07 01:09:34,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:34 BoogieIcfgContainer [2024-11-07 01:09:34,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:09:34,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:09:34,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:09:34,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:09:34,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:09:23" (1/3) ... [2024-11-07 01:09:34,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1a260e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:34, skipping insertion in model container [2024-11-07 01:09:34,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:25" (2/3) ... [2024-11-07 01:09:34,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1a260e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:34, skipping insertion in model container [2024-11-07 01:09:34,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:34" (3/3) ... [2024-11-07 01:09:34,699 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.03.cil-2.c [2024-11-07 01:09:34,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:09:34,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:09:34,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:09:34,844 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;@38e4a24a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:09:34,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:09:34,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 2344 states, 2318 states have (on average 1.8541846419327006) internal successors, (4298), 2321 states have internal predecessors, (4298), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-07 01:09:34,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:34,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:34,870 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] [2024-11-07 01:09:34,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:34,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1659781244, now seen corresponding path program 1 times [2024-11-07 01:09:34,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:34,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210022028] [2024-11-07 01:09:34,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:34,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:35,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:35,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:35,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:35,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:35,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:35,419 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 01:09:35,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:35,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210022028] [2024-11-07 01:09:35,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210022028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:35,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:35,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:09:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410152740] [2024-11-07 01:09:35,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:35,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:09:35,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:35,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:09:35,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:09:35,453 INFO L87 Difference]: Start difference. First operand has 2344 states, 2318 states have (on average 1.8541846419327006) internal successors, (4298), 2321 states have internal predecessors, (4298), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:36,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:36,727 INFO L93 Difference]: Finished difference Result 4911 states and 9024 transitions. [2024-11-07 01:09:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:09:36,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:36,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:36,763 INFO L225 Difference]: With dead ends: 4911 [2024-11-07 01:09:36,765 INFO L226 Difference]: Without dead ends: 2508 [2024-11-07 01:09:36,777 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 01:09:36,780 INFO L432 NwaCegarLoop]: 4166 mSDtfsCounter, 4555 mSDsluCounter, 12484 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 16650 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:36,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4565 Valid, 16650 Invalid, 826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:09:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2024-11-07 01:09:36,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2423. [2024-11-07 01:09:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2379 states have (on average 1.8263976460697773) internal successors, (4345), 2382 states have internal predecessors, (4345), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-07 01:09:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 4406 transitions. [2024-11-07 01:09:36,972 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 4406 transitions. Word has length 79 [2024-11-07 01:09:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:36,972 INFO L471 AbstractCegarLoop]: Abstraction has 2423 states and 4406 transitions. [2024-11-07 01:09:36,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 4406 transitions. [2024-11-07 01:09:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:36,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:36,977 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] [2024-11-07 01:09:36,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:09:36,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:36,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:36,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1422733048, now seen corresponding path program 1 times [2024-11-07 01:09:36,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:36,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917833035] [2024-11-07 01:09:36,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:36,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:37,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:37,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:37,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:37,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:37,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:37,339 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 01:09:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:37,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917833035] [2024-11-07 01:09:37,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917833035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:37,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:09:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71038485] [2024-11-07 01:09:37,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:37,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:09:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:09:37,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:09:37,343 INFO L87 Difference]: Start difference. First operand 2423 states and 4406 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:38,607 INFO L93 Difference]: Finished difference Result 2989 states and 5264 transitions. [2024-11-07 01:09:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:09:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:38,622 INFO L225 Difference]: With dead ends: 2989 [2024-11-07 01:09:38,622 INFO L226 Difference]: Without dead ends: 2698 [2024-11-07 01:09:38,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:09:38,625 INFO L432 NwaCegarLoop]: 4194 mSDtfsCounter, 4485 mSDsluCounter, 16591 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 20785 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:38,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 20785 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:09:38,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2024-11-07 01:09:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2560. [2024-11-07 01:09:38,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2497 states have (on average 1.8093712454945936) internal successors, (4518), 2501 states have internal predecessors, (4518), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-07 01:09:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 4605 transitions. [2024-11-07 01:09:38,724 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 4605 transitions. Word has length 79 [2024-11-07 01:09:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:38,725 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 4605 transitions. [2024-11-07 01:09:38,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:38,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 4605 transitions. [2024-11-07 01:09:38,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:38,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:38,733 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] [2024-11-07 01:09:38,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:09:38,734 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:38,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1477125946, now seen corresponding path program 1 times [2024-11-07 01:09:38,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:38,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408851615] [2024-11-07 01:09:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:38,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:38,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:38,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:38,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:38,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:38,948 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 01:09:38,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:38,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408851615] [2024-11-07 01:09:38,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408851615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:38,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:38,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:09:38,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199046037] [2024-11-07 01:09:38,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:38,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:09:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:38,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:09:38,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:09:38,950 INFO L87 Difference]: Start difference. First operand 2560 states and 4605 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:40,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:40,286 INFO L93 Difference]: Finished difference Result 3483 states and 5999 transitions. [2024-11-07 01:09:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:09:40,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:40,307 INFO L225 Difference]: With dead ends: 3483 [2024-11-07 01:09:40,307 INFO L226 Difference]: Without dead ends: 3055 [2024-11-07 01:09:40,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:09:40,311 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4483 mSDsluCounter, 16591 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 20783 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:40,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 20783 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:09:40,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2024-11-07 01:09:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2835. [2024-11-07 01:09:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2734 states have (on average 1.7794440380395025) internal successors, (4865), 2740 states have internal predecessors, (4865), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2024-11-07 01:09:40,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 5008 transitions. [2024-11-07 01:09:40,447 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 5008 transitions. Word has length 79 [2024-11-07 01:09:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:40,448 INFO L471 AbstractCegarLoop]: Abstraction has 2835 states and 5008 transitions. [2024-11-07 01:09:40,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 5008 transitions. [2024-11-07 01:09:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:40,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:40,451 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] [2024-11-07 01:09:40,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:09:40,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:40,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:40,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1894522552, now seen corresponding path program 1 times [2024-11-07 01:09:40,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:40,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443017101] [2024-11-07 01:09:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:40,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:40,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:40,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:40,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:40,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:40,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:40,672 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 01:09:40,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:40,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443017101] [2024-11-07 01:09:40,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443017101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:40,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:40,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:09:40,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26343381] [2024-11-07 01:09:40,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:40,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:09:40,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:09:40,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:09:40,676 INFO L87 Difference]: Start difference. First operand 2835 states and 5008 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:41,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:41,904 INFO L93 Difference]: Finished difference Result 4438 states and 7418 transitions. [2024-11-07 01:09:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:09:41,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:41,924 INFO L225 Difference]: With dead ends: 4438 [2024-11-07 01:09:41,925 INFO L226 Difference]: Without dead ends: 3735 [2024-11-07 01:09:41,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:09:41,931 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4479 mSDsluCounter, 16591 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4489 SdHoareTripleChecker+Valid, 20783 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:41,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4489 Valid, 20783 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:09:41,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2024-11-07 01:09:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3386. [2024-11-07 01:09:42,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3209 states have (on average 1.7323153630414458) internal successors, (5559), 3219 states have internal predecessors, (5559), 113 states have call successors, (113), 54 states have call predecessors, (113), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2024-11-07 01:09:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 5820 transitions. [2024-11-07 01:09:42,056 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 5820 transitions. Word has length 79 [2024-11-07 01:09:42,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:42,056 INFO L471 AbstractCegarLoop]: Abstraction has 3386 states and 5820 transitions. [2024-11-07 01:09:42,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:42,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 5820 transitions. [2024-11-07 01:09:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:42,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:42,059 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] [2024-11-07 01:09:42,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:09:42,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:42,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:42,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1215250298, now seen corresponding path program 1 times [2024-11-07 01:09:42,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:42,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659053174] [2024-11-07 01:09:42,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:42,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:42,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:42,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:42,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:42,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:42,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:42,228 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 01:09:42,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:42,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659053174] [2024-11-07 01:09:42,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659053174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:42,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:42,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:09:42,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322883360] [2024-11-07 01:09:42,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:42,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:09:42,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:42,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:09:42,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:09:42,234 INFO L87 Difference]: Start difference. First operand 3386 states and 5820 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:43,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:43,453 INFO L93 Difference]: Finished difference Result 6755 states and 10866 transitions. [2024-11-07 01:09:43,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:09:43,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:43,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:43,479 INFO L225 Difference]: With dead ends: 6755 [2024-11-07 01:09:43,479 INFO L226 Difference]: Without dead ends: 5501 [2024-11-07 01:09:43,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:09:43,487 INFO L432 NwaCegarLoop]: 4190 mSDtfsCounter, 4610 mSDsluCounter, 16583 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4624 SdHoareTripleChecker+Valid, 20773 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:43,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4624 Valid, 20773 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:09:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5501 states. [2024-11-07 01:09:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5501 to 4469. [2024-11-07 01:09:43,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 4148 states have (on average 1.6723722275795565) internal successors, (6937), 4166 states have internal predecessors, (6937), 201 states have call successors, (201), 102 states have call predecessors, (201), 118 states have return successors, (298), 216 states have call predecessors, (298), 201 states have call successors, (298) [2024-11-07 01:09:43,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 7436 transitions. [2024-11-07 01:09:43,705 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 7436 transitions. Word has length 79 [2024-11-07 01:09:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:43,707 INFO L471 AbstractCegarLoop]: Abstraction has 4469 states and 7436 transitions. [2024-11-07 01:09:43,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 7436 transitions. [2024-11-07 01:09:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:43,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:43,716 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] [2024-11-07 01:09:43,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:09:43,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:43,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 746324360, now seen corresponding path program 1 times [2024-11-07 01:09:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:43,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909271594] [2024-11-07 01:09:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:43,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:43,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:43,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:43,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:43,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:43,889 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 01:09:43,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:43,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909271594] [2024-11-07 01:09:43,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909271594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:43,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:43,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:09:43,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359026598] [2024-11-07 01:09:43,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:43,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:09:43,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:43,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:09:43,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:09:43,891 INFO L87 Difference]: Start difference. First operand 4469 states and 7436 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:45,212 INFO L93 Difference]: Finished difference Result 10716 states and 16824 transitions. [2024-11-07 01:09:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:09:45,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:45,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:45,253 INFO L225 Difference]: With dead ends: 10716 [2024-11-07 01:09:45,253 INFO L226 Difference]: Without dead ends: 8379 [2024-11-07 01:09:45,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:09:45,264 INFO L432 NwaCegarLoop]: 4189 mSDtfsCounter, 4499 mSDsluCounter, 16580 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 20769 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:45,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4508 Valid, 20769 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:09:45,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2024-11-07 01:09:45,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 6544. [2024-11-07 01:09:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6544 states, 5943 states have (on average 1.6097930338213025) internal successors, (9567), 5977 states have internal predecessors, (9567), 369 states have call successors, (369), 198 states have call predecessors, (369), 230 states have return successors, (644), 400 states have call predecessors, (644), 369 states have call successors, (644) [2024-11-07 01:09:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6544 states to 6544 states and 10580 transitions. [2024-11-07 01:09:45,593 INFO L78 Accepts]: Start accepts. Automaton has 6544 states and 10580 transitions. Word has length 79 [2024-11-07 01:09:45,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:45,593 INFO L471 AbstractCegarLoop]: Abstraction has 6544 states and 10580 transitions. [2024-11-07 01:09:45,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 6544 states and 10580 transitions. [2024-11-07 01:09:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:45,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:45,602 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] [2024-11-07 01:09:45,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:09:45,602 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:45,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:45,603 INFO L85 PathProgramCache]: Analyzing trace with hash 948148294, now seen corresponding path program 1 times [2024-11-07 01:09:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:45,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641389974] [2024-11-07 01:09:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:45,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:45,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:45,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:45,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:45,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:45,747 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 01:09:45,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641389974] [2024-11-07 01:09:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641389974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:45,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:45,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:09:45,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683912399] [2024-11-07 01:09:45,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:45,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:09:45,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:09:45,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:09:45,749 INFO L87 Difference]: Start difference. First operand 6544 states and 10580 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:47,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:47,239 INFO L93 Difference]: Finished difference Result 17622 states and 27382 transitions. [2024-11-07 01:09:47,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:09:47,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:47,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:47,312 INFO L225 Difference]: With dead ends: 17622 [2024-11-07 01:09:47,312 INFO L226 Difference]: Without dead ends: 13210 [2024-11-07 01:09:47,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:09:47,331 INFO L432 NwaCegarLoop]: 4190 mSDtfsCounter, 4488 mSDsluCounter, 16583 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4502 SdHoareTripleChecker+Valid, 20773 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:47,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4502 Valid, 20773 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:09:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13210 states. [2024-11-07 01:09:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13210 to 10788. [2024-11-07 01:09:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10788 states, 9643 states have (on average 1.5587472778181064) internal successors, (15031), 9709 states have internal predecessors, (15031), 689 states have call successors, (689), 390 states have call predecessors, (689), 454 states have return successors, (1482), 752 states have call predecessors, (1482), 689 states have call successors, (1482) [2024-11-07 01:09:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10788 states to 10788 states and 17202 transitions. [2024-11-07 01:09:47,964 INFO L78 Accepts]: Start accepts. Automaton has 10788 states and 17202 transitions. Word has length 79 [2024-11-07 01:09:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:47,966 INFO L471 AbstractCegarLoop]: Abstraction has 10788 states and 17202 transitions. [2024-11-07 01:09:47,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10788 states and 17202 transitions. [2024-11-07 01:09:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:09:47,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:47,977 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] [2024-11-07 01:09:47,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:09:47,978 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:47,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1381877380, now seen corresponding path program 1 times [2024-11-07 01:09:47,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:47,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487794283] [2024-11-07 01:09:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:47,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:48,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:48,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:48,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:48,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:48,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:48,097 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 01:09:48,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:48,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487794283] [2024-11-07 01:09:48,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487794283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:48,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:09:48,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:09:48,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712720005] [2024-11-07 01:09:48,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:48,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:09:48,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:48,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:09:48,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:09:48,099 INFO L87 Difference]: Start difference. First operand 10788 states and 17202 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:49,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:49,528 INFO L93 Difference]: Finished difference Result 26631 states and 41350 transitions. [2024-11-07 01:09:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:09:49,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-07 01:09:49,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:49,604 INFO L225 Difference]: With dead ends: 26631 [2024-11-07 01:09:49,604 INFO L226 Difference]: Without dead ends: 17976 [2024-11-07 01:09:49,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:09:49,634 INFO L432 NwaCegarLoop]: 4222 mSDtfsCounter, 4656 mSDsluCounter, 12352 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 16574 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:49,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 16574 Invalid, 1080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:09:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17976 states. [2024-11-07 01:09:50,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17976 to 15113. [2024-11-07 01:09:50,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15113 states, 13373 states have (on average 1.5226949824272789) internal successors, (20363), 13504 states have internal predecessors, (20363), 1054 states have call successors, (1054), 588 states have call predecessors, (1054), 684 states have return successors, (2091), 1084 states have call predecessors, (2091), 1054 states have call successors, (2091) [2024-11-07 01:09:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15113 states to 15113 states and 23508 transitions. [2024-11-07 01:09:50,455 INFO L78 Accepts]: Start accepts. Automaton has 15113 states and 23508 transitions. Word has length 79 [2024-11-07 01:09:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:50,456 INFO L471 AbstractCegarLoop]: Abstraction has 15113 states and 23508 transitions. [2024-11-07 01:09:50,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:09:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15113 states and 23508 transitions. [2024-11-07 01:09:50,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-07 01:09:50,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:50,493 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:09:50,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:09:50,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:50,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:50,493 INFO L85 PathProgramCache]: Analyzing trace with hash 372870207, now seen corresponding path program 1 times [2024-11-07 01:09:50,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:50,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789437799] [2024-11-07 01:09:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:50,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:09:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 01:09:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 01:09:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 01:09:50,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:50,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789437799] [2024-11-07 01:09:50,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789437799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:09:50,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657500213] [2024-11-07 01:09:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:50,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:09:50,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:09:50,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:09:50,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:09:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:50,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:09:50,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:09:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 01:09:50,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:09:50,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657500213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:50,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:09:50,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-07 01:09:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195670089] [2024-11-07 01:09:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:50,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:09:50,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:50,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:09:50,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:09:50,911 INFO L87 Difference]: Start difference. First operand 15113 states and 23508 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:09:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:52,186 INFO L93 Difference]: Finished difference Result 40726 states and 62424 transitions. [2024-11-07 01:09:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:09:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2024-11-07 01:09:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:52,323 INFO L225 Difference]: With dead ends: 40726 [2024-11-07 01:09:52,324 INFO L226 Difference]: Without dead ends: 27746 [2024-11-07 01:09:52,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:09:52,380 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4140 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:52,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4140 Valid, 4386 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:09:52,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27746 states. [2024-11-07 01:09:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27746 to 27548. [2024-11-07 01:09:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27548 states, 24124 states have (on average 1.4909633559940307) internal successors, (35968), 24384 states have internal predecessors, (35968), 2054 states have call successors, (2054), 1176 states have call predecessors, (2054), 1368 states have return successors, (4065), 2051 states have call predecessors, (4065), 2054 states have call successors, (4065) [2024-11-07 01:09:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27548 states to 27548 states and 42087 transitions. [2024-11-07 01:09:53,895 INFO L78 Accepts]: Start accepts. Automaton has 27548 states and 42087 transitions. Word has length 129 [2024-11-07 01:09:53,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:53,896 INFO L471 AbstractCegarLoop]: Abstraction has 27548 states and 42087 transitions. [2024-11-07 01:09:53,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:09:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 27548 states and 42087 transitions. [2024-11-07 01:09:53,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-07 01:09:53,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:09:53,954 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:09:53,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 01:09:54,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:09:54,156 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:09:54,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:09:54,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1742173535, now seen corresponding path program 1 times [2024-11-07 01:09:54,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:09:54,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461474890] [2024-11-07 01:09:54,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:54,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:09:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:09:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:09:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:09:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:09:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:09:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:09:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 01:09:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 01:09:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 01:09:54,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:09:54,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461474890] [2024-11-07 01:09:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461474890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:09:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844234114] [2024-11-07 01:09:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:09:54,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:09:54,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:09:54,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:09:54,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:09:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:09:54,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:09:54,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:09:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 01:09:54,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:09:54,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844234114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:09:54,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:09:54,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-07 01:09:54,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224661264] [2024-11-07 01:09:54,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:09:54,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:09:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:09:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:09:54,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:09:54,496 INFO L87 Difference]: Start difference. First operand 27548 states and 42087 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:09:56,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:09:56,423 INFO L93 Difference]: Finished difference Result 77685 states and 118029 transitions. [2024-11-07 01:09:56,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:09:56,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2024-11-07 01:09:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:09:56,729 INFO L225 Difference]: With dead ends: 77685 [2024-11-07 01:09:56,729 INFO L226 Difference]: Without dead ends: 52270 [2024-11-07 01:09:56,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:09:56,833 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4134 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4134 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:09:56,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4134 Valid, 4386 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:09:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52270 states. [2024-11-07 01:09:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52270 to 51876. [2024-11-07 01:09:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51876 states, 45134 states have (on average 1.4709974741879737) internal successors, (66392), 45652 states have internal predecessors, (66392), 4004 states have call successors, (4004), 2352 states have call predecessors, (4004), 2736 states have return successors, (7963), 3935 states have call predecessors, (7963), 4004 states have call successors, (7963) [2024-11-07 01:09:59,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51876 states to 51876 states and 78359 transitions. [2024-11-07 01:09:59,991 INFO L78 Accepts]: Start accepts. Automaton has 51876 states and 78359 transitions. Word has length 129 [2024-11-07 01:09:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:09:59,991 INFO L471 AbstractCegarLoop]: Abstraction has 51876 states and 78359 transitions. [2024-11-07 01:09:59,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:09:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 51876 states and 78359 transitions. [2024-11-07 01:10:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-07 01:10:00,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:10:00,068 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:10:00,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 01:10:00,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:10:00,268 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:10:00,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:10:00,270 INFO L85 PathProgramCache]: Analyzing trace with hash 467842687, now seen corresponding path program 1 times [2024-11-07 01:10:00,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:10:00,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130298160] [2024-11-07 01:10:00,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:10:00,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:10:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:10:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:10:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:10:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:10:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:10:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:10:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 01:10:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 01:10:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 01:10:00,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:10:00,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130298160] [2024-11-07 01:10:00,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130298160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:10:00,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628007177] [2024-11-07 01:10:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:10:00,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:10:00,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:10:00,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:10:00,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:10:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:00,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:10:00,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:10:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 01:10:00,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:10:00,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628007177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:10:00,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:10:00,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 01:10:00,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128280431] [2024-11-07 01:10:00,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:10:00,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:10:00,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:10:00,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:10:00,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:10:00,575 INFO L87 Difference]: Start difference. First operand 51876 states and 78359 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 01:10:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:10:05,298 INFO L93 Difference]: Finished difference Result 149129 states and 226473 transitions. [2024-11-07 01:10:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:10:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 129 [2024-11-07 01:10:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:10:05,961 INFO L225 Difference]: With dead ends: 149129 [2024-11-07 01:10:05,961 INFO L226 Difference]: Without dead ends: 99387 [2024-11-07 01:10:06,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:10:06,064 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 197 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 8570 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:10:06,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 8570 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:10:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99387 states. [2024-11-07 01:10:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99387 to 99387. [2024-11-07 01:10:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99387 states, 86170 states have (on average 1.4553440872693513) internal successors, (125407), 87073 states have internal predecessors, (125407), 7743 states have call successors, (7743), 4704 states have call predecessors, (7743), 5472 states have return successors, (17046), 7737 states have call predecessors, (17046), 7743 states have call successors, (17046) [2024-11-07 01:10:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99387 states to 99387 states and 150196 transitions. [2024-11-07 01:10:11,754 INFO L78 Accepts]: Start accepts. Automaton has 99387 states and 150196 transitions. Word has length 129 [2024-11-07 01:10:11,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:10:11,755 INFO L471 AbstractCegarLoop]: Abstraction has 99387 states and 150196 transitions. [2024-11-07 01:10:11,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 01:10:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 99387 states and 150196 transitions. [2024-11-07 01:10:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:10:12,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:10:12,050 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:10:12,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 01:10:12,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:10:12,252 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:10:12,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:10:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1721282092, now seen corresponding path program 1 times [2024-11-07 01:10:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:10:12,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7474292] [2024-11-07 01:10:12,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:10:12,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:10:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:10:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-07 01:10:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:10:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:10:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 01:10:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:10:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 01:10:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-07 01:10:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 01:10:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 01:10:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-07 01:10:12,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:10:12,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7474292] [2024-11-07 01:10:12,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7474292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:10:12,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980264382] [2024-11-07 01:10:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:10:12,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:10:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:10:12,445 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:10:12,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:10:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:10:12,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:10:12,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:10:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-07 01:10:12,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:10:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980264382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:10:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:10:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-07 01:10:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369573610] [2024-11-07 01:10:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:10:12,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:10:12,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:10:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:10:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:10:12,737 INFO L87 Difference]: Start difference. First operand 99387 states and 150196 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)