./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.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/pc_sfifo_2.cil-1+token_ring.10.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', 'dbdff9d5cdb7ffcae57151b3d045900600728670d8aad942a459f8d05b6221fb'] 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/pc_sfifo_2.cil-1+token_ring.10.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 dbdff9d5cdb7ffcae57151b3d045900600728670d8aad942a459f8d05b6221fb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:46:10,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:46:10,588 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:46:10,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:46:10,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:46:10,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:46:10,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:46:10,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:46:10,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:46:10,628 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:46:10,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:46:10,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:46:10,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:46:10,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:46:10,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:46:10,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:46:10,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:46:10,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:46:10,631 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:46:10,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:46:10,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:46:10,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:46:10,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:46:10,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:46:10,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:46:10,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:46:10,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:46:10,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:46:10,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:46:10,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:46:10,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:46:10,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:46:10,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:46:10,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:46:10,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:46:10,634 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 -> dbdff9d5cdb7ffcae57151b3d045900600728670d8aad942a459f8d05b6221fb [2024-11-07 01:46:10,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:46:10,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:46:10,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:46:10,958 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:46:10,958 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:46:10,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2024-11-07 01:46:12,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:46:12,597 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:46:12,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2024-11-07 01:46:12,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5432b895e/bbf0c81753b84d458350911c544baf53/FLAGae82b2222 [2024-11-07 01:46:12,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5432b895e/bbf0c81753b84d458350911c544baf53 [2024-11-07 01:46:12,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:46:12,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:46:12,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:46:12,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:46:12,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:46:12,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:12" (1/1) ... [2024-11-07 01:46:12,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e10ccaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:12, skipping insertion in model container [2024-11-07 01:46:12,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:12" (1/1) ... [2024-11-07 01:46:12,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:46:13,059 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[914,927] [2024-11-07 01:46:13,116 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[7115,7128] [2024-11-07 01:46:13,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:46:13,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:46:13,259 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[914,927] [2024-11-07 01:46:13,275 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/pc_sfifo_2.cil-1+token_ring.10.cil-2.c[7115,7128] [2024-11-07 01:46:13,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:46:13,351 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:46:13,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13 WrapperNode [2024-11-07 01:46:13,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:46:13,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:46:13,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:46:13,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:46:13,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,414 INFO L138 Inliner]: procedures = 73, calls = 87, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 948 [2024-11-07 01:46:13,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:46:13,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:46:13,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:46:13,416 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:46:13,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,444 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 01:46:13,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:46:13,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:46:13,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:46:13,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:46:13,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (1/1) ... [2024-11-07 01:46:13,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:46:13,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:13,529 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 01:46:13,533 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 01:46:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:46:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:46:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:46:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-07 01:46:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-07 01:46:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-07 01:46:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-07 01:46:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-07 01:46:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-07 01:46:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-07 01:46:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-07 01:46:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-07 01:46:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-07 01:46:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-07 01:46:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-07 01:46:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-07 01:46:13,551 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-07 01:46:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-07 01:46:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-07 01:46:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-07 01:46:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-07 01:46:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-07 01:46:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-07 01:46:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:46:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-07 01:46:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-07 01:46:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-07 01:46:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-07 01:46:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:46:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:46:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-07 01:46:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-07 01:46:13,683 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:46:13,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:46:14,674 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-07 01:46:14,675 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:46:14,704 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:46:14,705 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-07 01:46:14,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:14 BoogieIcfgContainer [2024-11-07 01:46:14,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:46:14,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:46:14,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:46:14,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:46:14,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:46:12" (1/3) ... [2024-11-07 01:46:14,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f6854c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:14, skipping insertion in model container [2024-11-07 01:46:14,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:13" (2/3) ... [2024-11-07 01:46:14,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f6854c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:14, skipping insertion in model container [2024-11-07 01:46:14,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:14" (3/3) ... [2024-11-07 01:46:14,716 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.10.cil-2.c [2024-11-07 01:46:14,729 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:46:14,729 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:46:14,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:46:14,807 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;@6acbede, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:46:14,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:46:14,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 389 states have (on average 1.6143958868894601) internal successors, (628), 395 states have internal predecessors, (628), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-07 01:46:14,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:14,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:14,824 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] [2024-11-07 01:46:14,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:14,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1754405048, now seen corresponding path program 1 times [2024-11-07 01:46:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:14,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033670735] [2024-11-07 01:46:14,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:15,386 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 01:46:15,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:15,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033670735] [2024-11-07 01:46:15,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033670735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:15,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:15,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:15,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931752973] [2024-11-07 01:46:15,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:15,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:15,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:15,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:15,423 INFO L87 Difference]: Start difference. First operand has 444 states, 389 states have (on average 1.6143958868894601) internal successors, (628), 395 states have internal predecessors, (628), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:17,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:17,092 INFO L93 Difference]: Finished difference Result 997 states and 1570 transitions. [2024-11-07 01:46:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:46:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:17,116 INFO L225 Difference]: With dead ends: 997 [2024-11-07 01:46:17,116 INFO L226 Difference]: Without dead ends: 569 [2024-11-07 01:46:17,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:46:17,142 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 780 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:17,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1954 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:46:17,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-07 01:46:17,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 530. [2024-11-07 01:46:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 457 states have (on average 1.5032822757111597) internal successors, (687), 463 states have internal predecessors, (687), 49 states have call successors, (49), 21 states have call predecessors, (49), 22 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-07 01:46:17,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 788 transitions. [2024-11-07 01:46:17,264 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 788 transitions. Word has length 65 [2024-11-07 01:46:17,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:17,265 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 788 transitions. [2024-11-07 01:46:17,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 788 transitions. [2024-11-07 01:46:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:17,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:17,270 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] [2024-11-07 01:46:17,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:46:17,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:17,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:17,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1350619097, now seen corresponding path program 1 times [2024-11-07 01:46:17,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:17,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697616862] [2024-11-07 01:46:17,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:17,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:17,561 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 01:46:17,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:17,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697616862] [2024-11-07 01:46:17,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697616862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:17,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:17,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:17,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918355564] [2024-11-07 01:46:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:17,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:17,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:17,566 INFO L87 Difference]: Start difference. First operand 530 states and 788 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:19,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:19,042 INFO L93 Difference]: Finished difference Result 877 states and 1265 transitions. [2024-11-07 01:46:19,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:46:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:19,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:19,056 INFO L225 Difference]: With dead ends: 877 [2024-11-07 01:46:19,057 INFO L226 Difference]: Without dead ends: 700 [2024-11-07 01:46:19,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:46:19,060 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1295 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:19,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 2185 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:46:19,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-07 01:46:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 626. [2024-11-07 01:46:19,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 533 states have (on average 1.4840525328330207) internal successors, (791), 541 states have internal predecessors, (791), 60 states have call successors, (60), 28 states have call predecessors, (60), 31 states have return successors, (71), 60 states have call predecessors, (71), 58 states have call successors, (71) [2024-11-07 01:46:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 922 transitions. [2024-11-07 01:46:19,145 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 922 transitions. Word has length 65 [2024-11-07 01:46:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:19,147 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 922 transitions. [2024-11-07 01:46:19,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:19,148 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 922 transitions. [2024-11-07 01:46:19,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:19,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:19,151 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] [2024-11-07 01:46:19,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:46:19,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:19,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash 915762089, now seen corresponding path program 1 times [2024-11-07 01:46:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:19,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405445479] [2024-11-07 01:46:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:19,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,419 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 01:46:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405445479] [2024-11-07 01:46:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405445479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:19,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:19,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:19,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562827747] [2024-11-07 01:46:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:19,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:19,422 INFO L87 Difference]: Start difference. First operand 626 states and 922 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:20,705 INFO L93 Difference]: Finished difference Result 925 states and 1333 transitions. [2024-11-07 01:46:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:20,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-07 01:46:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:20,714 INFO L225 Difference]: With dead ends: 925 [2024-11-07 01:46:20,716 INFO L226 Difference]: Without dead ends: 658 [2024-11-07 01:46:20,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:20,719 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 568 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:20,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 2618 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:46:20,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-07 01:46:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 631. [2024-11-07 01:46:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 537 states have (on average 1.4767225325884543) internal successors, (793), 545 states have internal predecessors, (793), 60 states have call successors, (60), 28 states have call predecessors, (60), 32 states have return successors, (72), 61 states have call predecessors, (72), 58 states have call successors, (72) [2024-11-07 01:46:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 925 transitions. [2024-11-07 01:46:20,773 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 925 transitions. Word has length 65 [2024-11-07 01:46:20,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:20,773 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 925 transitions. [2024-11-07 01:46:20,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 925 transitions. [2024-11-07 01:46:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:20,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:20,778 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] [2024-11-07 01:46:20,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:46:20,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:20,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash -113597209, now seen corresponding path program 1 times [2024-11-07 01:46:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:20,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981646719] [2024-11-07 01:46:20,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:20,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:20,984 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 01:46:20,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:20,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981646719] [2024-11-07 01:46:20,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981646719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:20,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:20,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:20,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648431791] [2024-11-07 01:46:20,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:20,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:20,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:20,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:20,988 INFO L87 Difference]: Start difference. First operand 631 states and 925 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:22,251 INFO L93 Difference]: Finished difference Result 947 states and 1355 transitions. [2024-11-07 01:46:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:46:22,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-07 01:46:22,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:22,259 INFO L225 Difference]: With dead ends: 947 [2024-11-07 01:46:22,260 INFO L226 Difference]: Without dead ends: 675 [2024-11-07 01:46:22,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:46:22,264 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 571 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:22,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 2617 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-07 01:46:22,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 646. [2024-11-07 01:46:22,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 549 states have (on average 1.4663023679417122) internal successors, (805), 557 states have internal predecessors, (805), 60 states have call successors, (60), 28 states have call predecessors, (60), 35 states have return successors, (75), 64 states have call predecessors, (75), 58 states have call successors, (75) [2024-11-07 01:46:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 940 transitions. [2024-11-07 01:46:22,308 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 940 transitions. Word has length 65 [2024-11-07 01:46:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:22,309 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 940 transitions. [2024-11-07 01:46:22,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 940 transitions. [2024-11-07 01:46:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:22,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:22,311 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] [2024-11-07 01:46:22,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:46:22,311 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:22,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:22,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1272606185, now seen corresponding path program 1 times [2024-11-07 01:46:22,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:22,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812241455] [2024-11-07 01:46:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:22,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:22,521 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 01:46:22,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:22,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812241455] [2024-11-07 01:46:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812241455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943788868] [2024-11-07 01:46:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:22,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:22,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:22,524 INFO L87 Difference]: Start difference. First operand 646 states and 940 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:23,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:23,824 INFO L93 Difference]: Finished difference Result 1038 states and 1451 transitions. [2024-11-07 01:46:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:46:23,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:23,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:23,830 INFO L225 Difference]: With dead ends: 1038 [2024-11-07 01:46:23,830 INFO L226 Difference]: Without dead ends: 753 [2024-11-07 01:46:23,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:46:23,832 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1289 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:23,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1963 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-07 01:46:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 658. [2024-11-07 01:46:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 559 states have (on average 1.4579606440071555) internal successors, (815), 567 states have internal predecessors, (815), 61 states have call successors, (61), 29 states have call predecessors, (61), 36 states have return successors, (74), 65 states have call predecessors, (74), 59 states have call successors, (74) [2024-11-07 01:46:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 950 transitions. [2024-11-07 01:46:23,885 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 950 transitions. Word has length 65 [2024-11-07 01:46:23,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:23,886 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 950 transitions. [2024-11-07 01:46:23,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:23,886 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 950 transitions. [2024-11-07 01:46:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:23,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:23,889 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] [2024-11-07 01:46:23,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:46:23,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:23,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:23,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1138592679, now seen corresponding path program 1 times [2024-11-07 01:46:23,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:23,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678258796] [2024-11-07 01:46:23,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:23,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:23,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:23,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:23,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:23,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,015 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 01:46:24,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:24,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678258796] [2024-11-07 01:46:24,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678258796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:24,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:24,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:24,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242108804] [2024-11-07 01:46:24,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:24,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:24,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:24,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:24,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:24,017 INFO L87 Difference]: Start difference. First operand 658 states and 950 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:24,863 INFO L93 Difference]: Finished difference Result 1300 states and 1797 transitions. [2024-11-07 01:46:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:46:24,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-07 01:46:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:24,869 INFO L225 Difference]: With dead ends: 1300 [2024-11-07 01:46:24,870 INFO L226 Difference]: Without dead ends: 1004 [2024-11-07 01:46:24,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:24,874 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 1578 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:24,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 1304 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:46:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-07 01:46:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 948. [2024-11-07 01:46:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 783 states have (on average 1.4074074074074074) internal successors, (1102), 798 states have internal predecessors, (1102), 96 states have call successors, (96), 51 states have call predecessors, (96), 67 states have return successors, (131), 105 states have call predecessors, (131), 94 states have call successors, (131) [2024-11-07 01:46:24,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1329 transitions. [2024-11-07 01:46:24,940 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1329 transitions. Word has length 65 [2024-11-07 01:46:24,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:24,941 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1329 transitions. [2024-11-07 01:46:24,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 01:46:24,941 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1329 transitions. [2024-11-07 01:46:24,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 01:46:24,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:24,948 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] [2024-11-07 01:46:24,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:46:24,949 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:24,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1619302963, now seen corresponding path program 1 times [2024-11-07 01:46:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:24,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927891513] [2024-11-07 01:46:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:24,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,055 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 01:46:25,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:25,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927891513] [2024-11-07 01:46:25,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927891513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:25,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:25,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:25,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65989795] [2024-11-07 01:46:25,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:25,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:25,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:25,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:25,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:25,057 INFO L87 Difference]: Start difference. First operand 948 states and 1329 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:25,915 INFO L93 Difference]: Finished difference Result 2151 states and 2900 transitions. [2024-11-07 01:46:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:25,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-07 01:46:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:25,924 INFO L225 Difference]: With dead ends: 2151 [2024-11-07 01:46:25,924 INFO L226 Difference]: Without dead ends: 1544 [2024-11-07 01:46:25,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:46:25,927 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1081 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:25,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1271 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:46:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-07 01:46:26,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1429. [2024-11-07 01:46:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1162 states have (on average 1.3623063683304648) internal successors, (1583), 1180 states have internal predecessors, (1583), 141 states have call successors, (141), 95 states have call predecessors, (141), 124 states have return successors, (203), 160 states have call predecessors, (203), 139 states have call successors, (203) [2024-11-07 01:46:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1927 transitions. [2024-11-07 01:46:26,025 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1927 transitions. Word has length 66 [2024-11-07 01:46:26,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:26,025 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1927 transitions. [2024-11-07 01:46:26,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1927 transitions. [2024-11-07 01:46:26,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 01:46:26,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:26,028 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] [2024-11-07 01:46:26,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:46:26,028 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:26,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1217424674, now seen corresponding path program 1 times [2024-11-07 01:46:26,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:26,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882634524] [2024-11-07 01:46:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:26,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:26,131 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 01:46:26,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:26,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882634524] [2024-11-07 01:46:26,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882634524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:26,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:26,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:26,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904216187] [2024-11-07 01:46:26,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:26,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:26,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:26,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:26,135 INFO L87 Difference]: Start difference. First operand 1429 states and 1927 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:26,986 INFO L93 Difference]: Finished difference Result 3617 states and 4733 transitions. [2024-11-07 01:46:26,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:46:26,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-07 01:46:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:27,003 INFO L225 Difference]: With dead ends: 3617 [2024-11-07 01:46:27,003 INFO L226 Difference]: Without dead ends: 2549 [2024-11-07 01:46:27,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:46:27,008 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1261 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:27,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1308 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:27,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2024-11-07 01:46:27,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2291. [2024-11-07 01:46:27,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1828 states have (on average 1.3183807439824946) internal successors, (2410), 1856 states have internal predecessors, (2410), 239 states have call successors, (239), 179 states have call predecessors, (239), 222 states have return successors, (339), 262 states have call predecessors, (339), 237 states have call successors, (339) [2024-11-07 01:46:27,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 2988 transitions. [2024-11-07 01:46:27,202 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 2988 transitions. Word has length 66 [2024-11-07 01:46:27,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:27,203 INFO L471 AbstractCegarLoop]: Abstraction has 2291 states and 2988 transitions. [2024-11-07 01:46:27,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 2988 transitions. [2024-11-07 01:46:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-07 01:46:27,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:27,206 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] [2024-11-07 01:46:27,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:46:27,207 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:27,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1398013582, now seen corresponding path program 1 times [2024-11-07 01:46:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:27,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506137617] [2024-11-07 01:46:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:27,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,303 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 01:46:27,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:27,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506137617] [2024-11-07 01:46:27,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506137617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:27,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:27,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231639625] [2024-11-07 01:46:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:27,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:27,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:27,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:27,306 INFO L87 Difference]: Start difference. First operand 2291 states and 2988 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:28,099 INFO L93 Difference]: Finished difference Result 5201 states and 6638 transitions. [2024-11-07 01:46:28,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:28,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-07 01:46:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:28,116 INFO L225 Difference]: With dead ends: 5201 [2024-11-07 01:46:28,116 INFO L226 Difference]: Without dead ends: 3271 [2024-11-07 01:46:28,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:46:28,122 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1559 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:28,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1046 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:28,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2024-11-07 01:46:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3023. [2024-11-07 01:46:28,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 2396 states have (on average 1.2996661101836393) internal successors, (3114), 2432 states have internal predecessors, (3114), 319 states have call successors, (319), 249 states have call predecessors, (319), 306 states have return successors, (448), 348 states have call predecessors, (448), 317 states have call successors, (448) [2024-11-07 01:46:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3881 transitions. [2024-11-07 01:46:28,346 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3881 transitions. Word has length 72 [2024-11-07 01:46:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:28,347 INFO L471 AbstractCegarLoop]: Abstraction has 3023 states and 3881 transitions. [2024-11-07 01:46:28,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:46:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3881 transitions. [2024-11-07 01:46:28,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 01:46:28,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:28,350 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:28,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:46:28,350 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:28,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:28,350 INFO L85 PathProgramCache]: Analyzing trace with hash -905541691, now seen corresponding path program 1 times [2024-11-07 01:46:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:28,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660444720] [2024-11-07 01:46:28,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:28,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:28,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:28,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660444720] [2024-11-07 01:46:28,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660444720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:28,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:28,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:28,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229383300] [2024-11-07 01:46:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:28,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:28,455 INFO L87 Difference]: Start difference. First operand 3023 states and 3881 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:29,434 INFO L93 Difference]: Finished difference Result 3797 states and 4812 transitions. [2024-11-07 01:46:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:46:29,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-07 01:46:29,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:29,456 INFO L225 Difference]: With dead ends: 3797 [2024-11-07 01:46:29,457 INFO L226 Difference]: Without dead ends: 3794 [2024-11-07 01:46:29,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:29,459 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 1891 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:29,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 1328 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3794 states. [2024-11-07 01:46:29,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3794 to 3517. [2024-11-07 01:46:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 2781 states have (on average 1.2894642215030565) internal successors, (3586), 2822 states have internal predecessors, (3586), 369 states have call successors, (369), 293 states have call predecessors, (369), 365 states have return successors, (527), 408 states have call predecessors, (527), 368 states have call successors, (527) [2024-11-07 01:46:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4482 transitions. [2024-11-07 01:46:29,735 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4482 transitions. Word has length 73 [2024-11-07 01:46:29,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:29,736 INFO L471 AbstractCegarLoop]: Abstraction has 3517 states and 4482 transitions. [2024-11-07 01:46:29,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4482 transitions. [2024-11-07 01:46:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 01:46:29,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:29,738 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:29,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:46:29,739 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:29,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:29,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1991681052, now seen corresponding path program 1 times [2024-11-07 01:46:29,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:29,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287715637] [2024-11-07 01:46:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:29,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:29,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:29,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287715637] [2024-11-07 01:46:29,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287715637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:29,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573823021] [2024-11-07 01:46:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:29,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:29,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:29,921 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 01:46:29,927 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 01:46:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 01:46:30,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:30,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:30,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:46:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573823021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:46:30,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:46:30,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-07 01:46:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916922685] [2024-11-07 01:46:30,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:46:30,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:46:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:30,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:46:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:30,448 INFO L87 Difference]: Start difference. First operand 3517 states and 4482 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-07 01:46:32,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:32,426 INFO L93 Difference]: Finished difference Result 7958 states and 9968 transitions. [2024-11-07 01:46:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:46:32,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-07 01:46:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:32,464 INFO L225 Difference]: With dead ends: 7958 [2024-11-07 01:46:32,464 INFO L226 Difference]: Without dead ends: 7955 [2024-11-07 01:46:32,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-07 01:46:32,471 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 2051 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:32,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 2350 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:46:32,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2024-11-07 01:46:32,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 5307. [2024-11-07 01:46:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 4185 states have (on average 1.281242532855436) internal successors, (5362), 4248 states have internal predecessors, (5362), 553 states have call successors, (553), 451 states have call predecessors, (553), 567 states have return successors, (805), 614 states have call predecessors, (805), 552 states have call successors, (805) [2024-11-07 01:46:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 6720 transitions. [2024-11-07 01:46:32,984 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 6720 transitions. Word has length 74 [2024-11-07 01:46:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:32,985 INFO L471 AbstractCegarLoop]: Abstraction has 5307 states and 6720 transitions. [2024-11-07 01:46:32,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-07 01:46:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 6720 transitions. [2024-11-07 01:46:32,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:46:32,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:32,988 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:33,008 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 01:46:33,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 01:46:33,193 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:33,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2005180421, now seen corresponding path program 2 times [2024-11-07 01:46:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:33,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748785249] [2024-11-07 01:46:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:46:33,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:33,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748785249] [2024-11-07 01:46:33,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748785249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:33,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:33,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:33,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921854712] [2024-11-07 01:46:33,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:33,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:33,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:33,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:33,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:33,270 INFO L87 Difference]: Start difference. First operand 5307 states and 6720 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:34,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:34,154 INFO L93 Difference]: Finished difference Result 7989 states and 10093 transitions. [2024-11-07 01:46:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:46:34,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-07 01:46:34,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:34,172 INFO L225 Difference]: With dead ends: 7989 [2024-11-07 01:46:34,172 INFO L226 Difference]: Without dead ends: 3914 [2024-11-07 01:46:34,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:34,182 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 1166 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:34,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1440 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2024-11-07 01:46:34,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3679. [2024-11-07 01:46:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 2913 states have (on average 1.270854788877446) internal successors, (3702), 2954 states have internal predecessors, (3702), 385 states have call successors, (385), 307 states have call predecessors, (385), 379 states have return successors, (531), 424 states have call predecessors, (531), 384 states have call successors, (531) [2024-11-07 01:46:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 4618 transitions. [2024-11-07 01:46:34,643 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 4618 transitions. Word has length 77 [2024-11-07 01:46:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:34,643 INFO L471 AbstractCegarLoop]: Abstraction has 3679 states and 4618 transitions. [2024-11-07 01:46:34,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-07 01:46:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 4618 transitions. [2024-11-07 01:46:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:46:34,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:34,648 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:34,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:46:34,648 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:34,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:34,649 INFO L85 PathProgramCache]: Analyzing trace with hash 928113294, now seen corresponding path program 1 times [2024-11-07 01:46:34,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:34,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876969774] [2024-11-07 01:46:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:34,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 01:46:34,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:34,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876969774] [2024-11-07 01:46:34,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876969774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:34,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:34,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323641237] [2024-11-07 01:46:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:34,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:34,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:34,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:34,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:34,811 INFO L87 Difference]: Start difference. First operand 3679 states and 4618 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:46:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:36,413 INFO L93 Difference]: Finished difference Result 10551 states and 13035 transitions. [2024-11-07 01:46:36,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 01:46:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-07 01:46:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:36,440 INFO L225 Difference]: With dead ends: 10551 [2024-11-07 01:46:36,441 INFO L226 Difference]: Without dead ends: 5914 [2024-11-07 01:46:36,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-07 01:46:36,453 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 1320 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:36,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 2031 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:46:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2024-11-07 01:46:36,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5594. [2024-11-07 01:46:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 4371 states have (on average 1.2411347517730495) internal successors, (5425), 4455 states have internal predecessors, (5425), 589 states have call successors, (589), 481 states have call predecessors, (589), 632 states have return successors, (913), 664 states have call predecessors, (913), 588 states have call successors, (913) [2024-11-07 01:46:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 6927 transitions. [2024-11-07 01:46:36,958 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 6927 transitions. Word has length 84 [2024-11-07 01:46:36,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:36,959 INFO L471 AbstractCegarLoop]: Abstraction has 5594 states and 6927 transitions. [2024-11-07 01:46:36,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:46:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 6927 transitions. [2024-11-07 01:46:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 01:46:36,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:36,965 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-07 01:46:36,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:46:36,966 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:36,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash 527509027, now seen corresponding path program 1 times [2024-11-07 01:46:36,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:36,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398482896] [2024-11-07 01:46:36,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:36,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 01:46:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:46:37,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:37,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398482896] [2024-11-07 01:46:37,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398482896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:37,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:37,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:37,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947122111] [2024-11-07 01:46:37,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:37,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:37,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:37,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:37,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:37,132 INFO L87 Difference]: Start difference. First operand 5594 states and 6927 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:46:38,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:38,854 INFO L93 Difference]: Finished difference Result 9597 states and 11767 transitions. [2024-11-07 01:46:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 01:46:38,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-07 01:46:38,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:38,875 INFO L225 Difference]: With dead ends: 9597 [2024-11-07 01:46:38,875 INFO L226 Difference]: Without dead ends: 5004 [2024-11-07 01:46:38,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:46:38,885 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1859 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:38,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 2056 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:46:38,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5004 states. [2024-11-07 01:46:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5004 to 4670. [2024-11-07 01:46:39,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 3660 states have (on average 1.2360655737704918) internal successors, (4524), 3726 states have internal predecessors, (4524), 490 states have call successors, (490), 396 states have call predecessors, (490), 518 states have return successors, (691), 554 states have call predecessors, (691), 489 states have call successors, (691) [2024-11-07 01:46:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 5705 transitions. [2024-11-07 01:46:39,287 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 5705 transitions. Word has length 93 [2024-11-07 01:46:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:39,287 INFO L471 AbstractCegarLoop]: Abstraction has 4670 states and 5705 transitions. [2024-11-07 01:46:39,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-07 01:46:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 5705 transitions. [2024-11-07 01:46:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:46:39,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:39,296 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-07 01:46:39,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:46:39,296 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:39,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:39,297 INFO L85 PathProgramCache]: Analyzing trace with hash -166394784, now seen corresponding path program 1 times [2024-11-07 01:46:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551584833] [2024-11-07 01:46:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 01:46:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:46:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 01:46:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:46:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 01:46:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 01:46:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-07 01:46:39,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:39,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551584833] [2024-11-07 01:46:39,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551584833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:39,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736714802] [2024-11-07 01:46:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:39,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:39,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:39,510 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 01:46:39,512 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 01:46:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 01:46:39,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 01:46:39,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:46:39,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736714802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:39,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:46:39,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-07 01:46:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580381702] [2024-11-07 01:46:39,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:39,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:39,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:39,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:39,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:46:39,703 INFO L87 Difference]: Start difference. First operand 4670 states and 5705 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 01:46:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:39,873 INFO L93 Difference]: Finished difference Result 6711 states and 8152 transitions. [2024-11-07 01:46:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:46:39,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-07 01:46:39,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:39,895 INFO L225 Difference]: With dead ends: 6711 [2024-11-07 01:46:39,896 INFO L226 Difference]: Without dead ends: 2406 [2024-11-07 01:46:39,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:46:39,904 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 0 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:39,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3241 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:46:39,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2024-11-07 01:46:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2406. [2024-11-07 01:46:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1973 states have (on average 1.2519006588950836) internal successors, (2470), 1988 states have internal predecessors, (2470), 214 states have call successors, (214), 162 states have call predecessors, (214), 217 states have return successors, (298), 256 states have call predecessors, (298), 213 states have call successors, (298) [2024-11-07 01:46:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 2982 transitions. [2024-11-07 01:46:40,083 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 2982 transitions. Word has length 145 [2024-11-07 01:46:40,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:40,084 INFO L471 AbstractCegarLoop]: Abstraction has 2406 states and 2982 transitions. [2024-11-07 01:46:40,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 01:46:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 2982 transitions. [2024-11-07 01:46:40,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-07 01:46:40,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:40,090 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-11-07 01:46:40,108 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 01:46:40,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 01:46:40,291 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:40,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1258155462, now seen corresponding path program 1 times [2024-11-07 01:46:40,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:40,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207915669] [2024-11-07 01:46:40,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:40,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 01:46:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 01:46:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-07 01:46:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 01:46:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 01:46:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 01:46:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-07 01:46:40,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:40,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207915669] [2024-11-07 01:46:40,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207915669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:40,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:40,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927960223] [2024-11-07 01:46:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:40,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:40,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:40,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:40,398 INFO L87 Difference]: Start difference. First operand 2406 states and 2982 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-07 01:46:41,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:41,225 INFO L93 Difference]: Finished difference Result 2471 states and 3050 transitions. [2024-11-07 01:46:41,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:46:41,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-07 01:46:41,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:41,236 INFO L225 Difference]: With dead ends: 2471 [2024-11-07 01:46:41,236 INFO L226 Difference]: Without dead ends: 2028 [2024-11-07 01:46:41,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:41,239 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 675 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:41,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1518 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:41,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2024-11-07 01:46:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1966. [2024-11-07 01:46:41,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1629 states have (on average 1.2682627378759976) internal successors, (2066), 1641 states have internal predecessors, (2066), 168 states have call successors, (168), 122 states have call predecessors, (168), 167 states have return successors, (234), 203 states have call predecessors, (234), 167 states have call successors, (234) [2024-11-07 01:46:41,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2468 transitions. [2024-11-07 01:46:41,392 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2468 transitions. Word has length 147 [2024-11-07 01:46:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:41,393 INFO L471 AbstractCegarLoop]: Abstraction has 1966 states and 2468 transitions. [2024-11-07 01:46:41,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-07 01:46:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2468 transitions. [2024-11-07 01:46:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 01:46:41,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:41,399 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-07 01:46:41,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:46:41,400 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:41,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1864756639, now seen corresponding path program 1 times [2024-11-07 01:46:41,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:41,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90925438] [2024-11-07 01:46:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:41,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:46:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 01:46:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 01:46:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:46:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 01:46:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 01:46:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 01:46:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-07 01:46:41,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:41,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90925438] [2024-11-07 01:46:41,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90925438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:41,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:41,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:41,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979015772] [2024-11-07 01:46:41,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:41,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:41,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:41,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:41,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:41,537 INFO L87 Difference]: Start difference. First operand 1966 states and 2468 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-07 01:46:42,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:42,468 INFO L93 Difference]: Finished difference Result 3443 states and 4267 transitions. [2024-11-07 01:46:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:46:42,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2024-11-07 01:46:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:42,478 INFO L225 Difference]: With dead ends: 3443 [2024-11-07 01:46:42,478 INFO L226 Difference]: Without dead ends: 2067 [2024-11-07 01:46:42,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:46:42,482 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 601 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:42,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2000 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:46:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-11-07 01:46:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1875. [2024-11-07 01:46:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1560 states have (on average 1.2698717948717948) internal successors, (1981), 1573 states have internal predecessors, (1981), 159 states have call successors, (159), 117 states have call predecessors, (159), 154 states have return successors, (218), 185 states have call predecessors, (218), 158 states have call successors, (218) [2024-11-07 01:46:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2358 transitions. [2024-11-07 01:46:42,609 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2358 transitions. Word has length 159 [2024-11-07 01:46:42,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:42,609 INFO L471 AbstractCegarLoop]: Abstraction has 1875 states and 2358 transitions. [2024-11-07 01:46:42,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-07 01:46:42,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2358 transitions. [2024-11-07 01:46:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 01:46:42,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:42,613 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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, 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 01:46:42,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:46:42,614 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:42,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:42,614 INFO L85 PathProgramCache]: Analyzing trace with hash -233575893, now seen corresponding path program 1 times [2024-11-07 01:46:42,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:42,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583034388] [2024-11-07 01:46:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:42,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:46:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 01:46:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 01:46:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 01:46:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 01:46:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-07 01:46:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-07 01:46:42,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:42,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583034388] [2024-11-07 01:46:42,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583034388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:42,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585643335] [2024-11-07 01:46:42,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:42,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:42,866 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 01:46:42,868 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 01:46:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 01:46:43,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-07 01:46:43,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:46:43,462 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-07 01:46:43,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585643335] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:46:43,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:46:43,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2024-11-07 01:46:43,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816608001] [2024-11-07 01:46:43,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:46:43,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 01:46:43,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:43,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 01:46:43,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-07 01:46:43,466 INFO L87 Difference]: Start difference. First operand 1875 states and 2358 transitions. Second operand has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-07 01:46:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:44,703 INFO L93 Difference]: Finished difference Result 3847 states and 4811 transitions. [2024-11-07 01:46:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 01:46:44,704 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 162 [2024-11-07 01:46:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:44,716 INFO L225 Difference]: With dead ends: 3847 [2024-11-07 01:46:44,716 INFO L226 Difference]: Without dead ends: 2415 [2024-11-07 01:46:44,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2024-11-07 01:46:44,720 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 2014 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:44,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 2124 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:46:44,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2024-11-07 01:46:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2265. [2024-11-07 01:46:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1838 states have (on average 1.2426550598476604) internal successors, (2284), 1859 states have internal predecessors, (2284), 213 states have call successors, (213), 167 states have call predecessors, (213), 212 states have return successors, (332), 239 states have call predecessors, (332), 212 states have call successors, (332) [2024-11-07 01:46:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2829 transitions. [2024-11-07 01:46:44,883 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2829 transitions. Word has length 162 [2024-11-07 01:46:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:44,883 INFO L471 AbstractCegarLoop]: Abstraction has 2265 states and 2829 transitions. [2024-11-07 01:46:44,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-07 01:46:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2829 transitions. [2024-11-07 01:46:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:46:44,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:44,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:44,904 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 01:46:45,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:45,088 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:45,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:45,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1024538107, now seen corresponding path program 1 times [2024-11-07 01:46:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:45,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201459969] [2024-11-07 01:46:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:46:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:46:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:46:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,250 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 01:46:45,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:45,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201459969] [2024-11-07 01:46:45,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201459969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:45,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:45,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:46:45,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119985786] [2024-11-07 01:46:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:45,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:46:45,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:46:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:46:45,253 INFO L87 Difference]: Start difference. First operand 2265 states and 2829 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:47,006 INFO L93 Difference]: Finished difference Result 2713 states and 3544 transitions. [2024-11-07 01:46:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:46:47,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-07 01:46:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:47,015 INFO L225 Difference]: With dead ends: 2713 [2024-11-07 01:46:47,016 INFO L226 Difference]: Without dead ends: 2385 [2024-11-07 01:46:47,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:47,018 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 993 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:47,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 909 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:46:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-07 01:46:47,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2265. [2024-11-07 01:46:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1838 states have (on average 1.2421109902067464) internal successors, (2283), 1859 states have internal predecessors, (2283), 213 states have call successors, (213), 167 states have call predecessors, (213), 212 states have return successors, (332), 239 states have call predecessors, (332), 212 states have call successors, (332) [2024-11-07 01:46:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2828 transitions. [2024-11-07 01:46:47,405 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2828 transitions. Word has length 156 [2024-11-07 01:46:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:47,405 INFO L471 AbstractCegarLoop]: Abstraction has 2265 states and 2828 transitions. [2024-11-07 01:46:47,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2828 transitions. [2024-11-07 01:46:47,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:46:47,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:47,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:47,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:46:47,412 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:47,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:47,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1362825657, now seen corresponding path program 1 times [2024-11-07 01:46:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:47,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990423066] [2024-11-07 01:46:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:47,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:46:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:46:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:46:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,607 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 01:46:47,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:47,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990423066] [2024-11-07 01:46:47,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990423066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:47,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:47,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:47,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769433913] [2024-11-07 01:46:47,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:47,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:47,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:47,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:47,609 INFO L87 Difference]: Start difference. First operand 2265 states and 2828 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 4 states have internal predecessors, (146), 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 01:46:50,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:50,290 INFO L93 Difference]: Finished difference Result 3159 states and 4257 transitions. [2024-11-07 01:46:50,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:50,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 4 states have internal predecessors, (146), 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 156 [2024-11-07 01:46:50,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:50,302 INFO L225 Difference]: With dead ends: 3159 [2024-11-07 01:46:50,302 INFO L226 Difference]: Without dead ends: 2839 [2024-11-07 01:46:50,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:46:50,304 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 1557 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:50,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 1365 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:46:50,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2024-11-07 01:46:50,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2600. [2024-11-07 01:46:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2147 states have (on average 1.289240801117839) internal successors, (2768), 2169 states have internal predecessors, (2768), 232 states have call successors, (232), 173 states have call predecessors, (232), 219 states have return successors, (354), 258 states have call predecessors, (354), 231 states have call successors, (354) [2024-11-07 01:46:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3354 transitions. [2024-11-07 01:46:50,693 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3354 transitions. Word has length 156 [2024-11-07 01:46:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:50,693 INFO L471 AbstractCegarLoop]: Abstraction has 2600 states and 3354 transitions. [2024-11-07 01:46:50,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 4 states have internal predecessors, (146), 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 01:46:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3354 transitions. [2024-11-07 01:46:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:46:50,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:50,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:50,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:46:50,697 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:50,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash 459774667, now seen corresponding path program 1 times [2024-11-07 01:46:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:50,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89634842] [2024-11-07 01:46:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:46:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:46:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:46:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,928 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 01:46:50,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:50,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89634842] [2024-11-07 01:46:50,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89634842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:50,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:50,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:50,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692507438] [2024-11-07 01:46:50,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:50,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:50,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:50,931 INFO L87 Difference]: Start difference. First operand 2600 states and 3354 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:46:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:54,032 INFO L93 Difference]: Finished difference Result 3964 states and 5535 transitions. [2024-11-07 01:46:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:46:54,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:46:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:54,042 INFO L225 Difference]: With dead ends: 3964 [2024-11-07 01:46:54,043 INFO L226 Difference]: Without dead ends: 3309 [2024-11-07 01:46:54,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:46:54,045 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 1582 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:54,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 2487 Invalid, 3392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3301 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 01:46:54,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2024-11-07 01:46:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 2912. [2024-11-07 01:46:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2433 states have (on average 1.318125770653514) internal successors, (3207), 2456 states have internal predecessors, (3207), 251 states have call successors, (251), 179 states have call predecessors, (251), 226 states have return successors, (375), 278 states have call predecessors, (375), 250 states have call successors, (375) [2024-11-07 01:46:54,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 3833 transitions. [2024-11-07 01:46:54,419 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 3833 transitions. Word has length 156 [2024-11-07 01:46:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:54,420 INFO L471 AbstractCegarLoop]: Abstraction has 2912 states and 3833 transitions. [2024-11-07 01:46:54,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:46:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 3833 transitions. [2024-11-07 01:46:54,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:46:54,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:54,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:54,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:46:54,425 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:54,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:54,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1157665783, now seen corresponding path program 1 times [2024-11-07 01:46:54,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:54,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752535422] [2024-11-07 01:46:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:54,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:54,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:54,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:46:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:54,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:46:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:54,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:46:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:54,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:54,686 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 01:46:54,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:54,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752535422] [2024-11-07 01:46:54,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752535422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:54,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:54,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:54,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181988041] [2024-11-07 01:46:54,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:54,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:54,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:54,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:54,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:54,689 INFO L87 Difference]: Start difference. First operand 2912 states and 3833 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:46:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:57,713 INFO L93 Difference]: Finished difference Result 5151 states and 7404 transitions. [2024-11-07 01:46:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:46:57,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:46:57,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:57,727 INFO L225 Difference]: With dead ends: 5151 [2024-11-07 01:46:57,727 INFO L226 Difference]: Without dead ends: 4184 [2024-11-07 01:46:57,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:46:57,732 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 1580 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 3297 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:57,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 2485 Invalid, 3390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3297 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:46:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2024-11-07 01:46:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 3537. [2024-11-07 01:46:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3006 states have (on average 1.3592814371257484) internal successors, (4086), 3031 states have internal predecessors, (4086), 289 states have call successors, (289), 191 states have call predecessors, (289), 240 states have return successors, (421), 318 states have call predecessors, (421), 288 states have call successors, (421) [2024-11-07 01:46:58,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4796 transitions. [2024-11-07 01:46:58,112 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4796 transitions. Word has length 156 [2024-11-07 01:46:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:58,112 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4796 transitions. [2024-11-07 01:46:58,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:46:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4796 transitions. [2024-11-07 01:46:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:46:58,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:58,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:46:58,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 01:46:58,116 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:58,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash -794199285, now seen corresponding path program 1 times [2024-11-07 01:46:58,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:58,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056421978] [2024-11-07 01:46:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:58,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:46:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:46:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:46:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:58,364 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 01:46:58,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:58,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056421978] [2024-11-07 01:46:58,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056421978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:58,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:58,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:58,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588310811] [2024-11-07 01:46:58,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:58,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:58,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:58,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:58,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:58,366 INFO L87 Difference]: Start difference. First operand 3537 states and 4796 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:01,276 INFO L93 Difference]: Finished difference Result 7436 states and 10979 transitions. [2024-11-07 01:47:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:01,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:01,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:01,295 INFO L225 Difference]: With dead ends: 7436 [2024-11-07 01:47:01,295 INFO L226 Difference]: Without dead ends: 5844 [2024-11-07 01:47:01,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:01,301 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 1677 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:01,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 1690 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2830 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:47:01,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2024-11-07 01:47:01,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 4788. [2024-11-07 01:47:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4788 states, 4153 states have (on average 1.407175535757284) internal successors, (5844), 4182 states have internal predecessors, (5844), 365 states have call successors, (365), 215 states have call predecessors, (365), 268 states have return successors, (519), 398 states have call predecessors, (519), 364 states have call successors, (519) [2024-11-07 01:47:01,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4788 states to 4788 states and 6728 transitions. [2024-11-07 01:47:01,822 INFO L78 Accepts]: Start accepts. Automaton has 4788 states and 6728 transitions. Word has length 156 [2024-11-07 01:47:01,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:01,822 INFO L471 AbstractCegarLoop]: Abstraction has 4788 states and 6728 transitions. [2024-11-07 01:47:01,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4788 states and 6728 transitions. [2024-11-07 01:47:01,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:47:01,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:01,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:01,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 01:47:01,826 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:01,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:01,826 INFO L85 PathProgramCache]: Analyzing trace with hash -505379895, now seen corresponding path program 1 times [2024-11-07 01:47:01,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:01,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555071204] [2024-11-07 01:47:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:01,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:01,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:01,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:47:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:02,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:47:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:02,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:47:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:02,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:02,035 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 01:47:02,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555071204] [2024-11-07 01:47:02,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555071204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:02,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:02,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:02,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368013749] [2024-11-07 01:47:02,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:02,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:02,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:02,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:02,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:02,038 INFO L87 Difference]: Start difference. First operand 4788 states and 6728 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:05,379 INFO L93 Difference]: Finished difference Result 12005 states and 18145 transitions. [2024-11-07 01:47:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:05,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:05,405 INFO L225 Difference]: With dead ends: 12005 [2024-11-07 01:47:05,405 INFO L226 Difference]: Without dead ends: 9162 [2024-11-07 01:47:05,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:05,415 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 1572 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 3279 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 3372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:05,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 2485 Invalid, 3372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3279 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 01:47:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9162 states. [2024-11-07 01:47:06,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9162 to 7295. [2024-11-07 01:47:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 6452 states have (on average 1.4516429014259145) internal successors, (9366), 6489 states have internal predecessors, (9366), 517 states have call successors, (517), 263 states have call predecessors, (517), 324 states have return successors, (733), 558 states have call predecessors, (733), 516 states have call successors, (733) [2024-11-07 01:47:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10616 transitions. [2024-11-07 01:47:06,065 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10616 transitions. Word has length 156 [2024-11-07 01:47:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:06,065 INFO L471 AbstractCegarLoop]: Abstraction has 7295 states and 10616 transitions. [2024-11-07 01:47:06,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10616 transitions. [2024-11-07 01:47:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:47:06,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:06,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:06,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 01:47:06,071 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:06,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1050252469, now seen corresponding path program 1 times [2024-11-07 01:47:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:06,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291206658] [2024-11-07 01:47:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:06,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:47:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:47:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:47:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,254 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 01:47:06,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:06,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291206658] [2024-11-07 01:47:06,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291206658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:06,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:06,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:06,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891154269] [2024-11-07 01:47:06,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:06,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:06,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:06,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:06,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:06,255 INFO L87 Difference]: Start difference. First operand 7295 states and 10616 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:08,328 INFO L93 Difference]: Finished difference Result 14602 states and 22280 transitions. [2024-11-07 01:47:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:08,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:08,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:08,349 INFO L225 Difference]: With dead ends: 14602 [2024-11-07 01:47:08,350 INFO L226 Difference]: Without dead ends: 9252 [2024-11-07 01:47:08,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:08,362 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1204 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:08,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1387 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:47:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9252 states. [2024-11-07 01:47:08,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9252 to 7295. [2024-11-07 01:47:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 6452 states have (on average 1.449008059516429) internal successors, (9349), 6489 states have internal predecessors, (9349), 517 states have call successors, (517), 263 states have call predecessors, (517), 324 states have return successors, (733), 558 states have call predecessors, (733), 516 states have call successors, (733) [2024-11-07 01:47:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10599 transitions. [2024-11-07 01:47:08,952 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10599 transitions. Word has length 156 [2024-11-07 01:47:08,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:08,952 INFO L471 AbstractCegarLoop]: Abstraction has 7295 states and 10599 transitions. [2024-11-07 01:47:08,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:08,952 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10599 transitions. [2024-11-07 01:47:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:47:08,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:08,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:08,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 01:47:08,956 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:08,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:08,956 INFO L85 PathProgramCache]: Analyzing trace with hash -375092343, now seen corresponding path program 1 times [2024-11-07 01:47:08,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:08,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917293745] [2024-11-07 01:47:08,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:08,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:47:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:47:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:47:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:09,148 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 01:47:09,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:09,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917293745] [2024-11-07 01:47:09,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917293745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:09,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:09,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:09,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139205390] [2024-11-07 01:47:09,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:09,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:09,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:09,152 INFO L87 Difference]: Start difference. First operand 7295 states and 10599 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:11,099 INFO L93 Difference]: Finished difference Result 14567 states and 22160 transitions. [2024-11-07 01:47:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:11,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:11,125 INFO L225 Difference]: With dead ends: 14567 [2024-11-07 01:47:11,125 INFO L226 Difference]: Without dead ends: 9217 [2024-11-07 01:47:11,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:11,139 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1201 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:11,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 1387 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:47:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9217 states. [2024-11-07 01:47:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9217 to 7295. [2024-11-07 01:47:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 6452 states have (on average 1.4463732176069435) internal successors, (9332), 6489 states have internal predecessors, (9332), 517 states have call successors, (517), 263 states have call predecessors, (517), 324 states have return successors, (733), 558 states have call predecessors, (733), 516 states have call successors, (733) [2024-11-07 01:47:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10582 transitions. [2024-11-07 01:47:11,844 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10582 transitions. Word has length 156 [2024-11-07 01:47:11,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:11,844 INFO L471 AbstractCegarLoop]: Abstraction has 7295 states and 10582 transitions. [2024-11-07 01:47:11,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10582 transitions. [2024-11-07 01:47:11,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:47:11,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:11,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:11,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 01:47:11,849 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:11,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash -959863993, now seen corresponding path program 1 times [2024-11-07 01:47:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524535748] [2024-11-07 01:47:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:11,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:11,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:47:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:47:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:47:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,046 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 01:47:12,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:12,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524535748] [2024-11-07 01:47:12,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524535748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:12,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:12,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:12,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575233590] [2024-11-07 01:47:12,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:12,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:12,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:12,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:12,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:12,047 INFO L87 Difference]: Start difference. First operand 7295 states and 10582 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:15,748 INFO L93 Difference]: Finished difference Result 21089 states and 32265 transitions. [2024-11-07 01:47:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:15,778 INFO L225 Difference]: With dead ends: 21089 [2024-11-07 01:47:15,778 INFO L226 Difference]: Without dead ends: 15739 [2024-11-07 01:47:15,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:15,788 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 1559 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 3290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:15,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 2485 Invalid, 3290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:47:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15739 states. [2024-11-07 01:47:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15739 to 12372. [2024-11-07 01:47:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12372 states, 11113 states have (on average 1.478538648429767) internal successors, (16431), 11166 states have internal predecessors, (16431), 821 states have call successors, (821), 359 states have call predecessors, (821), 436 states have return successors, (1215), 878 states have call predecessors, (1215), 820 states have call successors, (1215) [2024-11-07 01:47:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12372 states to 12372 states and 18467 transitions. [2024-11-07 01:47:16,663 INFO L78 Accepts]: Start accepts. Automaton has 12372 states and 18467 transitions. Word has length 156 [2024-11-07 01:47:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:16,664 INFO L471 AbstractCegarLoop]: Abstraction has 12372 states and 18467 transitions. [2024-11-07 01:47:16,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 12372 states and 18467 transitions. [2024-11-07 01:47:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:47:16,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:16,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:16,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 01:47:16,670 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:16,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:16,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1394369591, now seen corresponding path program 1 times [2024-11-07 01:47:16,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:16,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343777564] [2024-11-07 01:47:16,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:16,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:16,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:16,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:47:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:16,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:47:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:16,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:47:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:16,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:16,860 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 01:47:16,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:16,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343777564] [2024-11-07 01:47:16,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343777564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:16,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:16,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:16,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935920814] [2024-11-07 01:47:16,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:16,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:16,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:16,862 INFO L87 Difference]: Start difference. First operand 12372 states and 18467 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:18,907 INFO L93 Difference]: Finished difference Result 26333 states and 40689 transitions. [2024-11-07 01:47:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:18,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:18,941 INFO L225 Difference]: With dead ends: 26333 [2024-11-07 01:47:18,941 INFO L226 Difference]: Without dead ends: 15906 [2024-11-07 01:47:18,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:18,959 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1393 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:18,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 1156 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:47:18,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15906 states. [2024-11-07 01:47:19,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15906 to 12372. [2024-11-07 01:47:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12372 states, 11113 states have (on average 1.4755691532439486) internal successors, (16398), 11166 states have internal predecessors, (16398), 821 states have call successors, (821), 359 states have call predecessors, (821), 436 states have return successors, (1215), 878 states have call predecessors, (1215), 820 states have call successors, (1215) [2024-11-07 01:47:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12372 states to 12372 states and 18434 transitions. [2024-11-07 01:47:19,772 INFO L78 Accepts]: Start accepts. Automaton has 12372 states and 18434 transitions. Word has length 156 [2024-11-07 01:47:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:19,772 INFO L471 AbstractCegarLoop]: Abstraction has 12372 states and 18434 transitions. [2024-11-07 01:47:19,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 12372 states and 18434 transitions. [2024-11-07 01:47:19,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 01:47:19,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:19,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:47:19,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 01:47:19,778 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:19,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:19,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1824027897, now seen corresponding path program 1 times [2024-11-07 01:47:19,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:19,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977358841] [2024-11-07 01:47:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:19,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 01:47:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:47:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-07 01:47:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:47:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,973 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 01:47:19,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:19,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977358841] [2024-11-07 01:47:19,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977358841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:19,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:19,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:19,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705343278] [2024-11-07 01:47:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:19,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:19,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:19,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:19,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:19,975 INFO L87 Difference]: Start difference. First operand 12372 states and 18434 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 01:47:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:23,832 INFO L93 Difference]: Finished difference Result 39332 states and 60822 transitions. [2024-11-07 01:47:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:23,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-07 01:47:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:23,904 INFO L225 Difference]: With dead ends: 39332 [2024-11-07 01:47:23,904 INFO L226 Difference]: Without dead ends: 28905 [2024-11-07 01:47:23,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:23,929 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 1551 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 3159 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 3252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:23,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 2485 Invalid, 3252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3159 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:47:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28905 states.