./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.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.12.cil-1.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', 'a41d14195dc7825ea8ff849a910a7045aa33d6087daf5af287d6c34e44b1032a'] 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.12.cil-1.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 a41d14195dc7825ea8ff849a910a7045aa33d6087daf5af287d6c34e44b1032a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:46:12,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:46:12,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:46:12,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:46:12,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:46:12,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:46:12,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:46:12,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:46:12,637 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:46:12,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:46:12,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:46:12,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:46:12,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:46:12,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:46:12,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:46:12,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:46:12,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:46:12,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:46:12,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:46:12,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:46:12,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:46:12,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:46:12,642 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 -> a41d14195dc7825ea8ff849a910a7045aa33d6087daf5af287d6c34e44b1032a [2024-11-07 01:46:12,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:46:12,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:46:12,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:46:12,895 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:46:12,896 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:46:12,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c [2024-11-07 01:46:14,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:46:14,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:46:14,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-1.c [2024-11-07 01:46:14,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c1d80f0cd/ab7c46ce9551480d94e7eee98e1666e9/FLAG27b679037 [2024-11-07 01:46:14,392 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c1d80f0cd/ab7c46ce9551480d94e7eee98e1666e9 [2024-11-07 01:46:14,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:46:14,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:46:14,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:46:14,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:46:14,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:46:14,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722f522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14, skipping insertion in model container [2024-11-07 01:46:14,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:46:14,529 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.12.cil-1.c[914,927] [2024-11-07 01:46:14,589 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.12.cil-1.c[7115,7128] [2024-11-07 01:46:14,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:46:14,712 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:46:14,721 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.12.cil-1.c[914,927] [2024-11-07 01:46:14,738 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.12.cil-1.c[7115,7128] [2024-11-07 01:46:14,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:46:14,792 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:46:14,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14 WrapperNode [2024-11-07 01:46:14,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:46:14,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:46:14,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:46:14,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:46:14,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,839 INFO L138 Inliner]: procedures = 77, calls = 94, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 1074 [2024-11-07 01:46:14,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:46:14,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:46:14,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:46:14,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:46:14,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,863 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 01:46:14,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:46:14,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:46:14,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:46:14,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:46:14,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (1/1) ... [2024-11-07 01:46:14,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:46:14,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:14,957 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 01:46:14,959 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 01:46:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:46:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:46:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:46:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-07 01:46:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-07 01:46:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-07 01:46:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-07 01:46:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-07 01:46:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-07 01:46:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-07 01:46:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-07 01:46:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-07 01:46:14,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-07 01:46:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-07 01:46:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-07 01:46:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-07 01:46:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-07 01:46:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-07 01:46:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-07 01:46:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-07 01:46:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-07 01:46:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-07 01:46:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-07 01:46:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:46:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-07 01:46:14,979 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-07 01:46:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-07 01:46:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-07 01:46:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:46:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:46:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-07 01:46:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-07 01:46:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-07 01:46:14,980 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-07 01:46:15,108 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:46:15,110 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:46:15,967 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-07 01:46:15,967 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:46:15,986 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:46:15,989 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-07 01:46:15,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:15 BoogieIcfgContainer [2024-11-07 01:46:15,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:46:15,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:46:15,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:46:15,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:46:15,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:46:14" (1/3) ... [2024-11-07 01:46:15,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d73faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:15, skipping insertion in model container [2024-11-07 01:46:15,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:46:14" (2/3) ... [2024-11-07 01:46:15,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d73faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:15, skipping insertion in model container [2024-11-07 01:46:15,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:15" (3/3) ... [2024-11-07 01:46:15,997 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.12.cil-1.c [2024-11-07 01:46:16,006 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:46:16,007 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:46:16,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:46:16,092 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;@796f5c74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:46:16,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:46:16,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 504 states, 444 states have (on average 1.6261261261261262) internal successors, (722), 452 states have internal predecessors, (722), 42 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-07 01:46:16,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:16,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:16,106 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 01:46:16,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:16,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1058964764, now seen corresponding path program 1 times [2024-11-07 01:46:16,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:16,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012466122] [2024-11-07 01:46:16,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:16,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:16,533 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 01:46:16,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:16,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012466122] [2024-11-07 01:46:16,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012466122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:16,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:16,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:16,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354510807] [2024-11-07 01:46:16,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:16,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:16,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:16,566 INFO L87 Difference]: Start difference. First operand has 504 states, 444 states have (on average 1.6261261261261262) internal successors, (722), 452 states have internal predecessors, (722), 42 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) 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 01:46:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:17,853 INFO L93 Difference]: Finished difference Result 1114 states and 1770 transitions. [2024-11-07 01:46:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:46:17,855 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 01:46:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:17,864 INFO L225 Difference]: With dead ends: 1114 [2024-11-07 01:46:17,864 INFO L226 Difference]: Without dead ends: 628 [2024-11-07 01:46:17,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:46:17,869 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1222 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:17,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 2260 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:46:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-07 01:46:17,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 589. [2024-11-07 01:46:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 512 states have (on average 1.517578125) internal successors, (777), 519 states have internal predecessors, (777), 53 states have call successors, (53), 22 states have call predecessors, (53), 22 states have return successors, (54), 50 states have call predecessors, (54), 49 states have call successors, (54) [2024-11-07 01:46:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 884 transitions. [2024-11-07 01:46:17,931 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 884 transitions. Word has length 65 [2024-11-07 01:46:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:17,931 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 884 transitions. [2024-11-07 01:46:17,931 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 01:46:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 884 transitions. [2024-11-07 01:46:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:17,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:17,933 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 01:46:17,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:46:17,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:17,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash 619923876, now seen corresponding path program 1 times [2024-11-07 01:46:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:17,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005562136] [2024-11-07 01:46:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:17,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:18,165 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 01:46:18,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:18,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005562136] [2024-11-07 01:46:18,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005562136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:18,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:18,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:18,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606329651] [2024-11-07 01:46:18,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:18,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:18,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:18,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:18,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:18,171 INFO L87 Difference]: Start difference. First operand 589 states and 884 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 01:46:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:19,407 INFO L93 Difference]: Finished difference Result 936 states and 1361 transitions. [2024-11-07 01:46:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:46:19,408 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 01:46:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:19,417 INFO L225 Difference]: With dead ends: 936 [2024-11-07 01:46:19,422 INFO L226 Difference]: Without dead ends: 759 [2024-11-07 01:46:19,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:46:19,424 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 1450 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:19,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 2483 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:19,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-07 01:46:19,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 685. [2024-11-07 01:46:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 588 states have (on average 1.498299319727891) internal successors, (881), 597 states have internal predecessors, (881), 64 states have call successors, (64), 29 states have call predecessors, (64), 31 states have return successors, (73), 62 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-07 01:46:19,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1018 transitions. [2024-11-07 01:46:19,503 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1018 transitions. Word has length 65 [2024-11-07 01:46:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:19,503 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1018 transitions. [2024-11-07 01:46:19,503 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 01:46:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1018 transitions. [2024-11-07 01:46:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:19,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:19,510 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 01:46:19,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:46:19,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:19,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1408662234, now seen corresponding path program 1 times [2024-11-07 01:46:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:19,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214380293] [2024-11-07 01:46:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:19,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:19,737 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 01:46:19,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:19,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214380293] [2024-11-07 01:46:19,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214380293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:19,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:19,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:19,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881535383] [2024-11-07 01:46:19,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:19,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:19,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:19,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:19,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:19,739 INFO L87 Difference]: Start difference. First operand 685 states and 1018 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 01:46:21,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:21,160 INFO L93 Difference]: Finished difference Result 984 states and 1429 transitions. [2024-11-07 01:46:21,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:21,160 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 01:46:21,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:21,163 INFO L225 Difference]: With dead ends: 984 [2024-11-07 01:46:21,163 INFO L226 Difference]: Without dead ends: 717 [2024-11-07 01:46:21,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-07 01:46:21,165 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 650 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:21,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 3032 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:46:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-07 01:46:21,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 690. [2024-11-07 01:46:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 592 states have (on average 1.491554054054054) internal successors, (883), 601 states have internal predecessors, (883), 64 states have call successors, (64), 29 states have call predecessors, (64), 32 states have return successors, (74), 63 states have call predecessors, (74), 60 states have call successors, (74) [2024-11-07 01:46:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1021 transitions. [2024-11-07 01:46:21,197 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1021 transitions. Word has length 65 [2024-11-07 01:46:21,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:21,198 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1021 transitions. [2024-11-07 01:46:21,198 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 01:46:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1021 transitions. [2024-11-07 01:46:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:21,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:21,199 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 01:46:21,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:46:21,200 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:21,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:21,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1856945764, now seen corresponding path program 1 times [2024-11-07 01:46:21,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:21,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451700466] [2024-11-07 01:46:21,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:21,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:21,407 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 01:46:21,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:21,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451700466] [2024-11-07 01:46:21,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451700466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:21,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:21,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:21,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640594243] [2024-11-07 01:46:21,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:21,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:21,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:21,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:21,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:21,413 INFO L87 Difference]: Start difference. First operand 690 states and 1021 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 01:46:24,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:24,107 INFO L93 Difference]: Finished difference Result 2352 states and 3293 transitions. [2024-11-07 01:46:24,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 01:46:24,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-07 01:46:24,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:24,118 INFO L225 Difference]: With dead ends: 2352 [2024-11-07 01:46:24,118 INFO L226 Difference]: Without dead ends: 2080 [2024-11-07 01:46:24,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 01:46:24,120 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 3061 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 2519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:24,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3075 Valid, 2313 Invalid, 2519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:46:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2024-11-07 01:46:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1830. [2024-11-07 01:46:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1492 states have (on average 1.383378016085791) internal successors, (2064), 1521 states have internal predecessors, (2064), 181 states have call successors, (181), 131 states have call predecessors, (181), 155 states have return successors, (260), 181 states have call predecessors, (260), 177 states have call successors, (260) [2024-11-07 01:46:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2505 transitions. [2024-11-07 01:46:24,252 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2505 transitions. Word has length 65 [2024-11-07 01:46:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:24,253 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2505 transitions. [2024-11-07 01:46:24,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 01:46:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2505 transitions. [2024-11-07 01:46:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:24,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:24,255 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 01:46:24,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:46:24,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:24,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1450155194, now seen corresponding path program 1 times [2024-11-07 01:46:24,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:24,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953838415] [2024-11-07 01:46:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:24,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:24,416 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 01:46:24,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:24,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953838415] [2024-11-07 01:46:24,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953838415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:24,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:24,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:24,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062584906] [2024-11-07 01:46:24,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:24,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:24,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:24,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:24,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:24,418 INFO L87 Difference]: Start difference. First operand 1830 states and 2505 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 01:46:25,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:25,575 INFO L93 Difference]: Finished difference Result 3427 states and 4624 transitions. [2024-11-07 01:46:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:46:25,575 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 01:46:25,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:25,584 INFO L225 Difference]: With dead ends: 3427 [2024-11-07 01:46:25,584 INFO L226 Difference]: Without dead ends: 2015 [2024-11-07 01:46:25,590 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 01:46:25,591 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 971 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:25,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 2683 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:46:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2024-11-07 01:46:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1875. [2024-11-07 01:46:25,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1528 states have (on average 1.368455497382199) internal successors, (2091), 1557 states have internal predecessors, (2091), 181 states have call successors, (181), 131 states have call predecessors, (181), 164 states have return successors, (272), 190 states have call predecessors, (272), 177 states have call successors, (272) [2024-11-07 01:46:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2544 transitions. [2024-11-07 01:46:25,695 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2544 transitions. Word has length 65 [2024-11-07 01:46:25,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:25,696 INFO L471 AbstractCegarLoop]: Abstraction has 1875 states and 2544 transitions. [2024-11-07 01:46:25,696 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 01:46:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2544 transitions. [2024-11-07 01:46:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:25,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:25,697 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] [2024-11-07 01:46:25,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:46:25,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:25,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:25,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1458608708, now seen corresponding path program 1 times [2024-11-07 01:46:25,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:25,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257760952] [2024-11-07 01:46:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:25,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:25,868 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 01:46:25,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:25,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257760952] [2024-11-07 01:46:25,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257760952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:25,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:25,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:25,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637043737] [2024-11-07 01:46:25,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:25,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:25,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:25,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:25,869 INFO L87 Difference]: Start difference. First operand 1875 states and 2544 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 01:46:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:26,930 INFO L93 Difference]: Finished difference Result 3310 states and 4383 transitions. [2024-11-07 01:46:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 01:46:26,930 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 01:46:26,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:26,938 INFO L225 Difference]: With dead ends: 3310 [2024-11-07 01:46:26,938 INFO L226 Difference]: Without dead ends: 2073 [2024-11-07 01:46:26,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-07 01:46:26,941 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1817 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:26,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 1858 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:46:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2024-11-07 01:46:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1853. [2024-11-07 01:46:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1514 states have (on average 1.3652575957727873) internal successors, (2067), 1537 states have internal predecessors, (2067), 181 states have call successors, (181), 131 states have call predecessors, (181), 156 states have return successors, (256), 188 states have call predecessors, (256), 177 states have call successors, (256) [2024-11-07 01:46:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2504 transitions. [2024-11-07 01:46:27,014 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2504 transitions. Word has length 65 [2024-11-07 01:46:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:27,015 INFO L471 AbstractCegarLoop]: Abstraction has 1853 states and 2504 transitions. [2024-11-07 01:46:27,015 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 01:46:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2504 transitions. [2024-11-07 01:46:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 01:46:27,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:27,016 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 01:46:27,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:46:27,016 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:27,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:27,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1592622214, now seen corresponding path program 1 times [2024-11-07 01:46:27,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:27,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400455] [2024-11-07 01:46:27,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:27,085 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 01:46:27,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:27,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400455] [2024-11-07 01:46:27,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:27,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:27,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:27,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561590691] [2024-11-07 01:46:27,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:27,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:27,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:27,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:27,086 INFO L87 Difference]: Start difference. First operand 1853 states and 2504 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 01:46:27,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:27,905 INFO L93 Difference]: Finished difference Result 4928 states and 6483 transitions. [2024-11-07 01:46:27,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 01:46:27,906 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 01:46:27,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:27,918 INFO L225 Difference]: With dead ends: 4928 [2024-11-07 01:46:27,918 INFO L226 Difference]: Without dead ends: 3496 [2024-11-07 01:46:27,921 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 01:46:27,922 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1795 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:27,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 1500 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2024-11-07 01:46:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3224. [2024-11-07 01:46:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 2580 states have (on average 1.3116279069767443) internal successors, (3384), 2624 states have internal predecessors, (3384), 333 states have call successors, (333), 254 states have call predecessors, (333), 309 states have return successors, (528), 352 states have call predecessors, (528), 329 states have call successors, (528) [2024-11-07 01:46:28,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4245 transitions. [2024-11-07 01:46:28,066 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4245 transitions. Word has length 65 [2024-11-07 01:46:28,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:28,066 INFO L471 AbstractCegarLoop]: Abstraction has 3224 states and 4245 transitions. [2024-11-07 01:46:28,067 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 01:46:28,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4245 transitions. [2024-11-07 01:46:28,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 01:46:28,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:28,068 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 01:46:28,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:46:28,068 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:28,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1444156516, now seen corresponding path program 1 times [2024-11-07 01:46:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:28,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062828597] [2024-11-07 01:46:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:28,119 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 01:46:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062828597] [2024-11-07 01:46:28,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062828597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:28,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:28,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:28,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837331558] [2024-11-07 01:46:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:28,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:28,121 INFO L87 Difference]: Start difference. First operand 3224 states and 4245 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 01:46:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:29,014 INFO L93 Difference]: Finished difference Result 8242 states and 10759 transitions. [2024-11-07 01:46:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:29,015 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 01:46:29,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:29,037 INFO L225 Difference]: With dead ends: 8242 [2024-11-07 01:46:29,037 INFO L226 Difference]: Without dead ends: 5418 [2024-11-07 01:46:29,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:46:29,046 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 832 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:29,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1863 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2024-11-07 01:46:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 4902. [2024-11-07 01:46:29,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4902 states, 3865 states have (on average 1.2895213454075032) internal successors, (4984), 3916 states have internal predecessors, (4984), 527 states have call successors, (527), 428 states have call predecessors, (527), 508 states have return successors, (849), 564 states have call predecessors, (849), 523 states have call successors, (849) [2024-11-07 01:46:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6360 transitions. [2024-11-07 01:46:29,322 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6360 transitions. Word has length 66 [2024-11-07 01:46:29,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:29,322 INFO L471 AbstractCegarLoop]: Abstraction has 4902 states and 6360 transitions. [2024-11-07 01:46:29,322 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 01:46:29,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6360 transitions. [2024-11-07 01:46:29,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 01:46:29,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:29,324 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 01:46:29,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:46:29,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:29,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:29,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1593385795, now seen corresponding path program 1 times [2024-11-07 01:46:29,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:29,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425443511] [2024-11-07 01:46:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:46:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:29,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425443511] [2024-11-07 01:46:29,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425443511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:29,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:29,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9602086] [2024-11-07 01:46:29,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:29,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:29,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:29,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:29,378 INFO L87 Difference]: Start difference. First operand 4902 states and 6360 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 01:46:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:30,293 INFO L93 Difference]: Finished difference Result 6936 states and 8884 transitions. [2024-11-07 01:46:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:46:30,294 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 73 [2024-11-07 01:46:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:30,311 INFO L225 Difference]: With dead ends: 6936 [2024-11-07 01:46:30,312 INFO L226 Difference]: Without dead ends: 4258 [2024-11-07 01:46:30,318 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 01:46:30,319 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 1427 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:30,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1505 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4258 states. [2024-11-07 01:46:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4258 to 3922. [2024-11-07 01:46:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3099 states have (on average 1.2762181348822201) internal successors, (3955), 3142 states have internal predecessors, (3955), 429 states have call successors, (429), 346 states have call predecessors, (429), 392 states have return successors, (616), 440 states have call predecessors, (616), 425 states have call successors, (616) [2024-11-07 01:46:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5000 transitions. [2024-11-07 01:46:30,588 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5000 transitions. Word has length 73 [2024-11-07 01:46:30,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:30,588 INFO L471 AbstractCegarLoop]: Abstraction has 3922 states and 5000 transitions. [2024-11-07 01:46:30,588 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 01:46:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5000 transitions. [2024-11-07 01:46:30,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 01:46:30,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:30,590 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 01:46:30,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:46:30,590 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:30,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash 135146136, now seen corresponding path program 1 times [2024-11-07 01:46:30,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:30,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971501515] [2024-11-07 01:46:30,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:30,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:30,652 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 01:46:30,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:30,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971501515] [2024-11-07 01:46:30,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971501515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:30,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:30,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:30,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947786662] [2024-11-07 01:46:30,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:30,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:30,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:30,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:30,653 INFO L87 Difference]: Start difference. First operand 3922 states and 5000 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 01:46:31,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:31,511 INFO L93 Difference]: Finished difference Result 5432 states and 6838 transitions. [2024-11-07 01:46:31,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:46:31,512 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 01:46:31,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:31,532 INFO L225 Difference]: With dead ends: 5432 [2024-11-07 01:46:31,532 INFO L226 Difference]: Without dead ends: 5429 [2024-11-07 01:46:31,534 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 01:46:31,535 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 2506 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:31,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1165 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2024-11-07 01:46:31,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 4980. [2024-11-07 01:46:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4980 states, 3906 states have (on average 1.2619047619047619) internal successors, (4929), 3958 states have internal predecessors, (4929), 555 states have call successors, (555), 460 states have call predecessors, (555), 517 states have return successors, (809), 568 states have call predecessors, (809), 552 states have call successors, (809) [2024-11-07 01:46:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 6293 transitions. [2024-11-07 01:46:31,823 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 6293 transitions. Word has length 73 [2024-11-07 01:46:31,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:31,823 INFO L471 AbstractCegarLoop]: Abstraction has 4980 states and 6293 transitions. [2024-11-07 01:46:31,823 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 01:46:31,824 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 6293 transitions. [2024-11-07 01:46:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 01:46:31,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:31,825 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 01:46:31,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:46:31,825 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:31,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:31,826 INFO L85 PathProgramCache]: Analyzing trace with hash -106911099, now seen corresponding path program 1 times [2024-11-07 01:46:31,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:31,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670645643] [2024-11-07 01:46:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:31,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:31,935 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 01:46:31,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:31,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670645643] [2024-11-07 01:46:31,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670645643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:31,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688627038] [2024-11-07 01:46:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:31,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:31,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:31,938 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 01:46:31,940 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 01:46:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:32,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 01:46:32,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:32,331 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 01:46:32,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:46:32,414 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 01:46:32,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688627038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:46:32,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:46:32,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-07 01:46:32,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257460300] [2024-11-07 01:46:32,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:46:32,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:46:32,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:32,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:46:32,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:32,416 INFO L87 Difference]: Start difference. First operand 4980 states and 6293 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 01:46:34,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:34,465 INFO L93 Difference]: Finished difference Result 11408 states and 14141 transitions. [2024-11-07 01:46:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:46:34,466 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 01:46:34,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:34,495 INFO L225 Difference]: With dead ends: 11408 [2024-11-07 01:46:34,495 INFO L226 Difference]: Without dead ends: 11405 [2024-11-07 01:46:34,497 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 01:46:34,498 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 2952 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3022 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:34,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3022 Valid, 2199 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:46:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11405 states. [2024-11-07 01:46:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11405 to 9268. [2024-11-07 01:46:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9268 states, 7242 states have (on average 1.2462027064346866) internal successors, (9025), 7338 states have internal predecessors, (9025), 1023 states have call successors, (1023), 868 states have call predecessors, (1023), 1001 states have return successors, (1515), 1068 states have call predecessors, (1515), 1020 states have call successors, (1515) [2024-11-07 01:46:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9268 states to 9268 states and 11563 transitions. [2024-11-07 01:46:35,039 INFO L78 Accepts]: Start accepts. Automaton has 9268 states and 11563 transitions. Word has length 74 [2024-11-07 01:46:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:35,039 INFO L471 AbstractCegarLoop]: Abstraction has 9268 states and 11563 transitions. [2024-11-07 01:46:35,040 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 01:46:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9268 states and 11563 transitions. [2024-11-07 01:46:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:46:35,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:35,042 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 01:46:35,054 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 01:46:35,245 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 01:46:35,245 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:35,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:35,246 INFO L85 PathProgramCache]: Analyzing trace with hash 215185496, now seen corresponding path program 2 times [2024-11-07 01:46:35,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:35,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200423995] [2024-11-07 01:46:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:35,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:35,344 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 01:46:35,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:35,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200423995] [2024-11-07 01:46:35,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200423995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:35,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:35,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:35,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591859689] [2024-11-07 01:46:35,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:35,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:35,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:35,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:35,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:35,345 INFO L87 Difference]: Start difference. First operand 9268 states and 11563 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 01:46:36,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:36,483 INFO L93 Difference]: Finished difference Result 13966 states and 17381 transitions. [2024-11-07 01:46:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:46:36,483 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 01:46:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:36,506 INFO L225 Difference]: With dead ends: 13966 [2024-11-07 01:46:36,507 INFO L226 Difference]: Without dead ends: 5977 [2024-11-07 01:46:36,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 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 01:46:36,522 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 1340 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:36,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1616 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:46:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2024-11-07 01:46:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 5146. [2024-11-07 01:46:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 4062 states have (on average 1.2338749384539636) internal successors, (5012), 4112 states have internal predecessors, (5012), 557 states have call successors, (557), 458 states have call predecessors, (557), 525 states have return successors, (775), 582 states have call predecessors, (775), 554 states have call successors, (775) [2024-11-07 01:46:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 6344 transitions. [2024-11-07 01:46:36,861 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 6344 transitions. Word has length 77 [2024-11-07 01:46:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:36,861 INFO L471 AbstractCegarLoop]: Abstraction has 5146 states and 6344 transitions. [2024-11-07 01:46:36,861 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 01:46:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 6344 transitions. [2024-11-07 01:46:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:46:36,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:36,868 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 01:46:36,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:46:36,868 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:36,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:36,869 INFO L85 PathProgramCache]: Analyzing trace with hash 29741527, now seen corresponding path program 1 times [2024-11-07 01:46:36,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:36,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032743375] [2024-11-07 01:46:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:36,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:36,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:36,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:36,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:36,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:36,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:37,006 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 01:46:37,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:37,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032743375] [2024-11-07 01:46:37,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032743375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:37,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:37,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:46:37,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633459850] [2024-11-07 01:46:37,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:37,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:46:37,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:37,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:46:37,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:46:37,009 INFO L87 Difference]: Start difference. First operand 5146 states and 6344 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 01:46:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:38,906 INFO L93 Difference]: Finished difference Result 14516 states and 17676 transitions. [2024-11-07 01:46:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 01:46:38,906 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 01:46:38,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:38,925 INFO L225 Difference]: With dead ends: 14516 [2024-11-07 01:46:38,926 INFO L226 Difference]: Without dead ends: 7644 [2024-11-07 01:46:38,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-07 01:46:38,934 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 1432 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:38,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1972 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:46:38,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2024-11-07 01:46:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 7202. [2024-11-07 01:46:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7202 states, 5615 states have (on average 1.2040961709706144) internal successors, (6761), 5706 states have internal predecessors, (6761), 787 states have call successors, (787), 654 states have call predecessors, (787), 798 states have return successors, (1196), 848 states have call predecessors, (1196), 784 states have call successors, (1196) [2024-11-07 01:46:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7202 states to 7202 states and 8744 transitions. [2024-11-07 01:46:39,326 INFO L78 Accepts]: Start accepts. Automaton has 7202 states and 8744 transitions. Word has length 84 [2024-11-07 01:46:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:39,326 INFO L471 AbstractCegarLoop]: Abstraction has 7202 states and 8744 transitions. [2024-11-07 01:46:39,327 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 01:46:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7202 states and 8744 transitions. [2024-11-07 01:46:39,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 01:46:39,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:39,330 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 01:46:39,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:46:39,330 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:39,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:39,330 INFO L85 PathProgramCache]: Analyzing trace with hash 387934998, now seen corresponding path program 1 times [2024-11-07 01:46:39,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:39,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181036895] [2024-11-07 01:46:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:39,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:39,416 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 10 [2024-11-07 01:46:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 01:46:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:39,429 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 01:46:39,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181036895] [2024-11-07 01:46:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181036895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:39,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:39,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 01:46:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500883121] [2024-11-07 01:46:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:39,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 01:46:39,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 01:46:39,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:39,431 INFO L87 Difference]: Start difference. First operand 7202 states and 8744 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 01:46:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:41,020 INFO L93 Difference]: Finished difference Result 12882 states and 15491 transitions. [2024-11-07 01:46:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 01:46:41,020 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 01:46:41,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:41,047 INFO L225 Difference]: With dead ends: 12882 [2024-11-07 01:46:41,047 INFO L226 Difference]: Without dead ends: 6722 [2024-11-07 01:46:41,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-07 01:46:41,061 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 2881 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2927 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:41,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2927 Valid, 1971 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:41,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6722 states. [2024-11-07 01:46:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6722 to 6260. [2024-11-07 01:46:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6260 states, 4891 states have (on average 1.1981189940707422) internal successors, (5860), 4973 states have internal predecessors, (5860), 675 states have call successors, (675), 558 states have call predecessors, (675), 692 states have return successors, (953), 735 states have call predecessors, (953), 672 states have call successors, (953) [2024-11-07 01:46:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6260 states to 6260 states and 7488 transitions. [2024-11-07 01:46:41,502 INFO L78 Accepts]: Start accepts. Automaton has 6260 states and 7488 transitions. Word has length 93 [2024-11-07 01:46:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:41,503 INFO L471 AbstractCegarLoop]: Abstraction has 6260 states and 7488 transitions. [2024-11-07 01:46:41,503 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 01:46:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6260 states and 7488 transitions. [2024-11-07 01:46:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:46:41,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:41,509 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 01:46:41,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:46:41,509 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:41,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1739276165, now seen corresponding path program 1 times [2024-11-07 01:46:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:41,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722604693] [2024-11-07 01:46:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 01:46:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:46:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 01:46:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:46:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 01:46:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 01:46:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,634 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 01:46:41,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722604693] [2024-11-07 01:46:41,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722604693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53556754] [2024-11-07 01:46:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:41,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:41,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:41,637 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 01:46:41,638 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 01:46:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:41,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 01:46:41,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:41,779 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 01:46:41,782 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:46:41,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53556754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:41,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:46:41,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-07 01:46:41,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418837776] [2024-11-07 01:46:41,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:41,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:41,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:41,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:41,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:46:41,783 INFO L87 Difference]: Start difference. First operand 6260 states and 7488 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 01:46:41,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:41,940 INFO L93 Difference]: Finished difference Result 8575 states and 10199 transitions. [2024-11-07 01:46:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:46:41,941 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 01:46:41,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:41,955 INFO L225 Difference]: With dead ends: 8575 [2024-11-07 01:46:41,955 INFO L226 Difference]: Without dead ends: 2739 [2024-11-07 01:46:41,964 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 01:46:41,964 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 0 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3716 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 01:46:41,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3716 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:46:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2024-11-07 01:46:42,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2689. [2024-11-07 01:46:42,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2187 states have (on average 1.2222222222222223) internal successors, (2673), 2206 states have internal predecessors, (2673), 253 states have call successors, (253), 196 states have call predecessors, (253), 247 states have return successors, (356), 287 states have call predecessors, (356), 250 states have call successors, (356) [2024-11-07 01:46:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3282 transitions. [2024-11-07 01:46:42,097 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3282 transitions. Word has length 145 [2024-11-07 01:46:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:42,097 INFO L471 AbstractCegarLoop]: Abstraction has 2689 states and 3282 transitions. [2024-11-07 01:46:42,097 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 01:46:42,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3282 transitions. [2024-11-07 01:46:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-07 01:46:42,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:42,102 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 01:46:42,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 01:46:42,303 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 01:46:42,303 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:42,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:42,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1336255801, now seen corresponding path program 1 times [2024-11-07 01:46:42,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:42,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869036941] [2024-11-07 01:46:42,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:42,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 01:46:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 01:46:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 01:46:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-07 01:46:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 01:46:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 01:46:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 01:46:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:42,370 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 01:46:42,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:42,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869036941] [2024-11-07 01:46:42,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869036941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:42,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:42,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430715530] [2024-11-07 01:46:42,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:42,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:42,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:42,372 INFO L87 Difference]: Start difference. First operand 2689 states and 3282 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 01:46:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:43,089 INFO L93 Difference]: Finished difference Result 3091 states and 3744 transitions. [2024-11-07 01:46:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:46:43,090 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 01:46:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:43,098 INFO L225 Difference]: With dead ends: 3091 [2024-11-07 01:46:43,098 INFO L226 Difference]: Without dead ends: 2345 [2024-11-07 01:46:43,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:43,101 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 1071 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:43,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1427 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:46:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2024-11-07 01:46:43,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2267. [2024-11-07 01:46:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 1861 states have (on average 1.2353573347662548) internal successors, (2299), 1877 states have internal predecessors, (2299), 207 states have call successors, (207), 156 states have call predecessors, (207), 197 states have return successors, (292), 234 states have call predecessors, (292), 204 states have call successors, (292) [2024-11-07 01:46:43,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 2798 transitions. [2024-11-07 01:46:43,324 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 2798 transitions. Word has length 147 [2024-11-07 01:46:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:43,326 INFO L471 AbstractCegarLoop]: Abstraction has 2267 states and 2798 transitions. [2024-11-07 01:46:43,326 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 01:46:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 2798 transitions. [2024-11-07 01:46:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 01:46:43,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:43,330 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 01:46:43,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:46:43,331 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:43,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:43,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1053244256, now seen corresponding path program 1 times [2024-11-07 01:46:43,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:43,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879714208] [2024-11-07 01:46:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:46:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 01:46:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 01:46:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:46:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 01:46:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 01:46:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 01:46:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:43,431 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 01:46:43,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:43,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879714208] [2024-11-07 01:46:43,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879714208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:43,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:43,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:43,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573776979] [2024-11-07 01:46:43,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:43,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:43,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:43,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:43,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:43,433 INFO L87 Difference]: Start difference. First operand 2267 states and 2798 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 01:46:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:44,407 INFO L93 Difference]: Finished difference Result 3856 states and 4683 transitions. [2024-11-07 01:46:44,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 01:46:44,407 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 01:46:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:44,418 INFO L225 Difference]: With dead ends: 3856 [2024-11-07 01:46:44,418 INFO L226 Difference]: Without dead ends: 2323 [2024-11-07 01:46:44,421 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 01:46:44,422 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 998 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:44,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1911 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:46:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2024-11-07 01:46:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2084. [2024-11-07 01:46:44,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 1716 states have (on average 1.25) internal successors, (2145), 1734 states have internal predecessors, (2145), 187 states have call successors, (187), 140 states have call predecessors, (187), 179 states have return successors, (262), 210 states have call predecessors, (262), 184 states have call successors, (262) [2024-11-07 01:46:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2594 transitions. [2024-11-07 01:46:44,639 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2594 transitions. Word has length 159 [2024-11-07 01:46:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:44,639 INFO L471 AbstractCegarLoop]: Abstraction has 2084 states and 2594 transitions. [2024-11-07 01:46:44,640 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 01:46:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2594 transitions. [2024-11-07 01:46:44,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 01:46:44,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:44,643 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 01:46:44,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:46:44,644 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:44,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:44,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1537971240, now seen corresponding path program 1 times [2024-11-07 01:46:44,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:44,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132560813] [2024-11-07 01:46:44,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:44,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 01:46:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 01:46:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:46:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 01:46:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:46:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 01:46:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 01:46:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 01:46:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 01:46:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-07 01:46:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 01:46:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:44,866 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 01:46:44,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:44,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132560813] [2024-11-07 01:46:44,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132560813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:44,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084337297] [2024-11-07 01:46:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:44,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:44,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:44,875 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 01:46:44,876 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 01:46:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:45,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 01:46:45,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:45,144 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 01:46:45,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:46:45,358 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 01:46:45,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084337297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:46:45,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:46:45,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2024-11-07 01:46:45,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590784329] [2024-11-07 01:46:45,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:46:45,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 01:46:45,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:45,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 01:46:45,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-07 01:46:45,361 INFO L87 Difference]: Start difference. First operand 2084 states and 2594 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 01:46:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:46,651 INFO L93 Difference]: Finished difference Result 4031 states and 4972 transitions. [2024-11-07 01:46:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 01:46:46,652 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 01:46:46,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:46,662 INFO L225 Difference]: With dead ends: 4031 [2024-11-07 01:46:46,663 INFO L226 Difference]: Without dead ends: 2318 [2024-11-07 01:46:46,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2024-11-07 01:46:46,667 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 2121 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:46,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 2512 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:46:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-07 01:46:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2152. [2024-11-07 01:46:46,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 1744 states have (on average 1.2264908256880733) internal successors, (2139), 1768 states have internal predecessors, (2139), 208 states have call successors, (208), 163 states have call predecessors, (208), 198 states have return successors, (312), 221 states have call predecessors, (312), 205 states have call successors, (312) [2024-11-07 01:46:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 2659 transitions. [2024-11-07 01:46:46,794 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 2659 transitions. Word has length 162 [2024-11-07 01:46:46,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:46,795 INFO L471 AbstractCegarLoop]: Abstraction has 2152 states and 2659 transitions. [2024-11-07 01:46:46,795 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 01:46:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 2659 transitions. [2024-11-07 01:46:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:46:46,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:46,798 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:46,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 01:46:46,998 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 01:46:46,999 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:46,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:46,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1628906280, now seen corresponding path program 1 times [2024-11-07 01:46:47,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:47,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616788734] [2024-11-07 01:46:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:47,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:46:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:46:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:46:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:46:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 01:46:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:46:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 01:46:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 01:46:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 01:46:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 01:46:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:46:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 01:46:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 01:46:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:46:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-07 01:46:47,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616788734] [2024-11-07 01:46:47,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616788734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:46:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104546891] [2024-11-07 01:46:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:47,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:47,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:46:47,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:46:47,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:46:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:47,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 01:46:47,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:46:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-07 01:46:47,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:46:47,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104546891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:47,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:46:47,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-07 01:46:47,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024177049] [2024-11-07 01:46:47,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:47,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:46:47,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:46:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:46:47,299 INFO L87 Difference]: Start difference. First operand 2152 states and 2659 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 01:46:47,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:47,984 INFO L93 Difference]: Finished difference Result 3795 states and 4578 transitions. [2024-11-07 01:46:47,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:46:47,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 179 [2024-11-07 01:46:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:47,992 INFO L225 Difference]: With dead ends: 3795 [2024-11-07 01:46:47,993 INFO L226 Difference]: Without dead ends: 1870 [2024-11-07 01:46:47,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 01:46:47,996 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1011 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:47,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1138 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:46:47,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2024-11-07 01:46:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1833. [2024-11-07 01:46:48,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1501 states have (on average 1.2331778814123917) internal successors, (1851), 1516 states have internal predecessors, (1851), 173 states have call successors, (173), 131 states have call predecessors, (173), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-07 01:46:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2264 transitions. [2024-11-07 01:46:48,102 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2264 transitions. Word has length 179 [2024-11-07 01:46:48,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:48,103 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2264 transitions. [2024-11-07 01:46:48,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 01:46:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2264 transitions. [2024-11-07 01:46:48,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:46:48,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:48,104 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, 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 01:46:48,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 01:46:48,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:46:48,309 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:48,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1668229557, now seen corresponding path program 1 times [2024-11-07 01:46:48,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:48,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084783710] [2024-11-07 01:46:48,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:48,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:46:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:46:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:46:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:46:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:48,445 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 01:46:48,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:48,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084783710] [2024-11-07 01:46:48,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084783710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:48,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:48,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:46:48,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874209108] [2024-11-07 01:46:48,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:48,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:46:48,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:48,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:46:48,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:46:48,447 INFO L87 Difference]: Start difference. First operand 1833 states and 2264 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:50,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:50,272 INFO L93 Difference]: Finished difference Result 2363 states and 3115 transitions. [2024-11-07 01:46:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:46:50,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:46:50,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:50,283 INFO L225 Difference]: With dead ends: 2363 [2024-11-07 01:46:50,283 INFO L226 Difference]: Without dead ends: 1975 [2024-11-07 01:46:50,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:50,287 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 1160 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:50,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1036 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:46:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-07 01:46:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1833. [2024-11-07 01:46:50,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1501 states have (on average 1.2325116588940705) internal successors, (1850), 1516 states have internal predecessors, (1850), 173 states have call successors, (173), 131 states have call predecessors, (173), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-07 01:46:50,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2263 transitions. [2024-11-07 01:46:50,589 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2263 transitions. Word has length 179 [2024-11-07 01:46:50,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:50,590 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2263 transitions. [2024-11-07 01:46:50,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2263 transitions. [2024-11-07 01:46:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:46:50,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:50,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:50,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:46:50,594 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:50,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:50,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1936906249, now seen corresponding path program 1 times [2024-11-07 01:46:50,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:50,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027776349] [2024-11-07 01:46:50,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:50,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:46:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:46:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:46:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:46:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:50,744 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 01:46:50,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:50,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027776349] [2024-11-07 01:46:50,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027776349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:50,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:50,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:46:50,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634205825] [2024-11-07 01:46:50,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:50,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:46:50,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:50,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:46:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:46:50,747 INFO L87 Difference]: Start difference. First operand 1833 states and 2263 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:52,663 INFO L93 Difference]: Finished difference Result 2355 states and 3098 transitions. [2024-11-07 01:46:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:46:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:46:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:52,676 INFO L225 Difference]: With dead ends: 2355 [2024-11-07 01:46:52,676 INFO L226 Difference]: Without dead ends: 1975 [2024-11-07 01:46:52,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:46:52,678 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1151 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:52,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 1034 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:46:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-07 01:46:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1833. [2024-11-07 01:46:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1501 states have (on average 1.2318454363757494) internal successors, (1849), 1516 states have internal predecessors, (1849), 173 states have call successors, (173), 131 states have call predecessors, (173), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-07 01:46:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2262 transitions. [2024-11-07 01:46:52,893 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2262 transitions. Word has length 179 [2024-11-07 01:46:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:52,893 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2262 transitions. [2024-11-07 01:46:52,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2262 transitions. [2024-11-07 01:46:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:46:52,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:52,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:52,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:46:52,895 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:52,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1150908359, now seen corresponding path program 1 times [2024-11-07 01:46:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:52,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386923722] [2024-11-07 01:46:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:52,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:46:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:46:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:46:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:46:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:53,066 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 01:46:53,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:53,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386923722] [2024-11-07 01:46:53,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386923722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:53,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:53,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:46:53,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723496779] [2024-11-07 01:46:53,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:53,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:46:53,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:53,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:46:53,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:46:53,068 INFO L87 Difference]: Start difference. First operand 1833 states and 2262 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:46:55,850 INFO L93 Difference]: Finished difference Result 2889 states and 3959 transitions. [2024-11-07 01:46:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:46:55,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:46:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:46:55,863 INFO L225 Difference]: With dead ends: 2889 [2024-11-07 01:46:55,863 INFO L226 Difference]: Without dead ends: 2512 [2024-11-07 01:46:55,864 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 01:46:55,866 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1809 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:46:55,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 1583 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 01:46:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-07 01:46:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2227. [2024-11-07 01:46:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1867 states have (on average 1.3004820567755757) internal successors, (2428), 1883 states have internal predecessors, (2428), 194 states have call successors, (194), 137 states have call predecessors, (194), 164 states have return successors, (264), 207 states have call predecessors, (264), 191 states have call successors, (264) [2024-11-07 01:46:56,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 2886 transitions. [2024-11-07 01:46:56,100 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 2886 transitions. Word has length 179 [2024-11-07 01:46:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:46:56,100 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 2886 transitions. [2024-11-07 01:46:56,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:46:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 2886 transitions. [2024-11-07 01:46:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:46:56,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:46:56,102 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, 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 01:46:56,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 01:46:56,102 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:46:56,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:46:56,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1758319157, now seen corresponding path program 1 times [2024-11-07 01:46:56,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:46:56,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157572730] [2024-11-07 01:46:56,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:46:56,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:46:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:46:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:46:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:46:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:46:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:46:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:46:56,287 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 01:46:56,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:46:56,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157572730] [2024-11-07 01:46:56,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157572730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:46:56,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:46:56,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:46:56,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655652903] [2024-11-07 01:46:56,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:46:56,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:46:56,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:46:56,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:46:56,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:46:56,290 INFO L87 Difference]: Start difference. First operand 2227 states and 2886 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:00,132 INFO L93 Difference]: Finished difference Result 3840 states and 5485 transitions. [2024-11-07 01:47:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:00,144 INFO L225 Difference]: With dead ends: 3840 [2024-11-07 01:47:00,144 INFO L226 Difference]: Without dead ends: 3069 [2024-11-07 01:47:00,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:00,149 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 1848 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 3833 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 3833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:00,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1877 Valid, 2933 Invalid, 3933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 3833 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-07 01:47:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2024-11-07 01:47:00,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2595. [2024-11-07 01:47:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2207 states have (on average 1.3389216130493884) internal successors, (2955), 2224 states have internal predecessors, (2955), 215 states have call successors, (215), 143 states have call predecessors, (215), 171 states have return successors, (287), 229 states have call predecessors, (287), 212 states have call successors, (287) [2024-11-07 01:47:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3457 transitions. [2024-11-07 01:47:00,404 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3457 transitions. Word has length 179 [2024-11-07 01:47:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:00,404 INFO L471 AbstractCegarLoop]: Abstraction has 2595 states and 3457 transitions. [2024-11-07 01:47:00,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3457 transitions. [2024-11-07 01:47:00,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:00,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:00,406 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, 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 01:47:00,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 01:47:00,407 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:00,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:00,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1147050099, now seen corresponding path program 1 times [2024-11-07 01:47:00,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:00,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905863400] [2024-11-07 01:47:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:00,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:00,574 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 01:47:00,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:00,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905863400] [2024-11-07 01:47:00,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905863400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:00,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:00,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778665823] [2024-11-07 01:47:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:00,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:00,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:00,575 INFO L87 Difference]: Start difference. First operand 2595 states and 3457 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:02,675 INFO L93 Difference]: Finished difference Result 4224 states and 6094 transitions. [2024-11-07 01:47:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:02,691 INFO L225 Difference]: With dead ends: 4224 [2024-11-07 01:47:02,691 INFO L226 Difference]: Without dead ends: 3085 [2024-11-07 01:47:02,693 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 01:47:02,697 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1375 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:02,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 1603 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:47:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2024-11-07 01:47:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2595. [2024-11-07 01:47:03,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2207 states have (on average 1.3375623017671048) internal successors, (2952), 2224 states have internal predecessors, (2952), 215 states have call successors, (215), 143 states have call predecessors, (215), 171 states have return successors, (287), 229 states have call predecessors, (287), 212 states have call successors, (287) [2024-11-07 01:47:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3454 transitions. [2024-11-07 01:47:03,091 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3454 transitions. Word has length 179 [2024-11-07 01:47:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:03,092 INFO L471 AbstractCegarLoop]: Abstraction has 2595 states and 3454 transitions. [2024-11-07 01:47:03,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3454 transitions. [2024-11-07 01:47:03,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:03,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:03,094 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, 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 01:47:03,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 01:47:03,094 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:03,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:03,094 INFO L85 PathProgramCache]: Analyzing trace with hash -258141579, now seen corresponding path program 1 times [2024-11-07 01:47:03,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:03,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859772180] [2024-11-07 01:47:03,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:03,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:03,438 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 01:47:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:03,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859772180] [2024-11-07 01:47:03,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859772180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:03,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:03,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247332103] [2024-11-07 01:47:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:03,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:03,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:03,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:03,441 INFO L87 Difference]: Start difference. First operand 2595 states and 3454 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:05,764 INFO L93 Difference]: Finished difference Result 4220 states and 6077 transitions. [2024-11-07 01:47:05,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:05,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:05,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:05,776 INFO L225 Difference]: With dead ends: 4220 [2024-11-07 01:47:05,777 INFO L226 Difference]: Without dead ends: 3081 [2024-11-07 01:47:05,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:47:05,779 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1373 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:05,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 1603 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:47:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2024-11-07 01:47:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2595. [2024-11-07 01:47:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2207 states have (on average 1.336202990484821) internal successors, (2949), 2224 states have internal predecessors, (2949), 215 states have call successors, (215), 143 states have call predecessors, (215), 171 states have return successors, (287), 229 states have call predecessors, (287), 212 states have call successors, (287) [2024-11-07 01:47:06,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3451 transitions. [2024-11-07 01:47:06,132 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3451 transitions. Word has length 179 [2024-11-07 01:47:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:06,132 INFO L471 AbstractCegarLoop]: Abstraction has 2595 states and 3451 transitions. [2024-11-07 01:47:06,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3451 transitions. [2024-11-07 01:47:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:06,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:06,134 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, 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 01:47:06,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 01:47:06,135 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:06,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:06,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1636192307, now seen corresponding path program 1 times [2024-11-07 01:47:06,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:06,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314265402] [2024-11-07 01:47:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:06,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:06,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:06,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314265402] [2024-11-07 01:47:06,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314265402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:06,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:06,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:06,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132548668] [2024-11-07 01:47:06,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:06,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:06,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:06,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:06,351 INFO L87 Difference]: Start difference. First operand 2595 states and 3451 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:09,966 INFO L93 Difference]: Finished difference Result 5233 states and 7666 transitions. [2024-11-07 01:47:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:09,978 INFO L225 Difference]: With dead ends: 5233 [2024-11-07 01:47:09,979 INFO L226 Difference]: Without dead ends: 4094 [2024-11-07 01:47:09,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:47:09,980 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1932 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 3220 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 3370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 3220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:09,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 1928 Invalid, 3370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 3220 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-07 01:47:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2024-11-07 01:47:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3340. [2024-11-07 01:47:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3340 states, 2896 states have (on average 1.3853591160220995) internal successors, (4012), 2915 states have internal predecessors, (4012), 257 states have call successors, (257), 155 states have call predecessors, (257), 185 states have return successors, (337), 273 states have call predecessors, (337), 254 states have call successors, (337) [2024-11-07 01:47:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 4606 transitions. [2024-11-07 01:47:10,291 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 4606 transitions. Word has length 179 [2024-11-07 01:47:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:10,291 INFO L471 AbstractCegarLoop]: Abstraction has 3340 states and 4606 transitions. [2024-11-07 01:47:10,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 4606 transitions. [2024-11-07 01:47:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:10,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:10,293 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, 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 01:47:10,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 01:47:10,293 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:10,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1212194123, now seen corresponding path program 1 times [2024-11-07 01:47:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363265263] [2024-11-07 01:47:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:10,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:10,440 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 01:47:10,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363265263] [2024-11-07 01:47:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363265263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:10,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:10,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067215846] [2024-11-07 01:47:10,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:10,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:10,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:10,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:10,441 INFO L87 Difference]: Start difference. First operand 3340 states and 4606 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:12,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:12,450 INFO L93 Difference]: Finished difference Result 5964 states and 8808 transitions. [2024-11-07 01:47:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:12,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:12,462 INFO L225 Difference]: With dead ends: 5964 [2024-11-07 01:47:12,462 INFO L226 Difference]: Without dead ends: 4080 [2024-11-07 01:47:12,465 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 01:47:12,466 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1372 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:12,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 1603 Invalid, 2084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:47:12,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2024-11-07 01:47:12,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 3340. [2024-11-07 01:47:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3340 states, 2896 states have (on average 1.3836325966850829) internal successors, (4007), 2915 states have internal predecessors, (4007), 257 states have call successors, (257), 155 states have call predecessors, (257), 185 states have return successors, (337), 273 states have call predecessors, (337), 254 states have call successors, (337) [2024-11-07 01:47:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 4601 transitions. [2024-11-07 01:47:12,770 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 4601 transitions. Word has length 179 [2024-11-07 01:47:12,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:12,771 INFO L471 AbstractCegarLoop]: Abstraction has 3340 states and 4601 transitions. [2024-11-07 01:47:12,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:12,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 4601 transitions. [2024-11-07 01:47:12,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:12,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:12,772 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, 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 01:47:12,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 01:47:12,773 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:12,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2135361549, now seen corresponding path program 1 times [2024-11-07 01:47:12,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:12,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876391236] [2024-11-07 01:47:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:12,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:12,950 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 01:47:12,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:12,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876391236] [2024-11-07 01:47:12,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876391236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:12,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:12,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:12,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143953442] [2024-11-07 01:47:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:12,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:12,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:12,954 INFO L87 Difference]: Start difference. First operand 3340 states and 4601 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:16,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:16,586 INFO L93 Difference]: Finished difference Result 7934 states and 11881 transitions. [2024-11-07 01:47:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:16,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:16,605 INFO L225 Difference]: With dead ends: 7934 [2024-11-07 01:47:16,605 INFO L226 Difference]: Without dead ends: 6050 [2024-11-07 01:47:16,609 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 01:47:16,610 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 1821 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 3720 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 3822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:16,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 2931 Invalid, 3822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3720 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-07 01:47:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2024-11-07 01:47:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 4834. [2024-11-07 01:47:16,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 4278 states have (on average 1.433146330060776) internal successors, (6131), 4301 states have internal predecessors, (6131), 341 states have call successors, (341), 179 states have call predecessors, (341), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-07 01:47:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6915 transitions. [2024-11-07 01:47:17,001 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6915 transitions. Word has length 179 [2024-11-07 01:47:17,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:17,001 INFO L471 AbstractCegarLoop]: Abstraction has 4834 states and 6915 transitions. [2024-11-07 01:47:17,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6915 transitions. [2024-11-07 01:47:17,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:17,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:17,003 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, 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 01:47:17,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 01:47:17,004 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:17,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1749499147, now seen corresponding path program 1 times [2024-11-07 01:47:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:17,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275551581] [2024-11-07 01:47:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:17,218 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 01:47:17,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:17,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275551581] [2024-11-07 01:47:17,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275551581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:17,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:17,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459878569] [2024-11-07 01:47:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:17,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:17,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:17,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:17,220 INFO L87 Difference]: Start difference. First operand 4834 states and 6915 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:19,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:19,417 INFO L93 Difference]: Finished difference Result 9448 states and 14263 transitions. [2024-11-07 01:47:19,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:19,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:19,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:19,433 INFO L225 Difference]: With dead ends: 9448 [2024-11-07 01:47:19,433 INFO L226 Difference]: Without dead ends: 6070 [2024-11-07 01:47:19,437 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 01:47:19,438 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1376 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:19,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1603 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:47:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6070 states. [2024-11-07 01:47:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6070 to 4834. [2024-11-07 01:47:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 4278 states have (on average 1.4310425432445069) internal successors, (6122), 4301 states have internal predecessors, (6122), 341 states have call successors, (341), 179 states have call predecessors, (341), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-07 01:47:19,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6906 transitions. [2024-11-07 01:47:19,824 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6906 transitions. Word has length 179 [2024-11-07 01:47:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:19,824 INFO L471 AbstractCegarLoop]: Abstraction has 4834 states and 6906 transitions. [2024-11-07 01:47:19,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6906 transitions. [2024-11-07 01:47:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:19,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:19,827 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, 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 01:47:19,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 01:47:19,827 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:19,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2014146637, now seen corresponding path program 1 times [2024-11-07 01:47:19,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:19,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718498978] [2024-11-07 01:47:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:19,975 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 01:47:19,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718498978] [2024-11-07 01:47:19,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718498978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:19,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:19,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:19,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179173795] [2024-11-07 01:47:19,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:19,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:19,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:19,976 INFO L87 Difference]: Start difference. First operand 4834 states and 6906 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:21,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:21,878 INFO L93 Difference]: Finished difference Result 9428 states and 14196 transitions. [2024-11-07 01:47:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:21,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:21,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:21,892 INFO L225 Difference]: With dead ends: 9428 [2024-11-07 01:47:21,893 INFO L226 Difference]: Without dead ends: 6050 [2024-11-07 01:47:21,898 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 01:47:21,898 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1591 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:21,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 1337 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:47:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2024-11-07 01:47:22,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 4834. [2024-11-07 01:47:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 4278 states have (on average 1.4289387564282374) internal successors, (6113), 4301 states have internal predecessors, (6113), 341 states have call successors, (341), 179 states have call predecessors, (341), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-07 01:47:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6897 transitions. [2024-11-07 01:47:22,293 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6897 transitions. Word has length 179 [2024-11-07 01:47:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:22,294 INFO L471 AbstractCegarLoop]: Abstraction has 4834 states and 6897 transitions. [2024-11-07 01:47:22,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6897 transitions. [2024-11-07 01:47:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:22,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:22,296 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, 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 01:47:22,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 01:47:22,296 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:22,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash 957641713, now seen corresponding path program 1 times [2024-11-07 01:47:22,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:22,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003016791] [2024-11-07 01:47:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:22,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:22,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:22,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:22,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:22,444 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 01:47:22,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:22,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003016791] [2024-11-07 01:47:22,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003016791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:22,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:22,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:22,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442538611] [2024-11-07 01:47:22,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:22,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:22,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:22,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:22,446 INFO L87 Difference]: Start difference. First operand 4834 states and 6897 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:24,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:24,259 INFO L93 Difference]: Finished difference Result 9418 states and 14149 transitions. [2024-11-07 01:47:24,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:24,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:24,276 INFO L225 Difference]: With dead ends: 9418 [2024-11-07 01:47:24,276 INFO L226 Difference]: Without dead ends: 6040 [2024-11-07 01:47:24,282 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 01:47:24,282 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1589 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:24,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 1337 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2024-11-07 01:47:24,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 4834. [2024-11-07 01:47:24,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 4278 states have (on average 1.4268349696119682) internal successors, (6104), 4301 states have internal predecessors, (6104), 341 states have call successors, (341), 179 states have call predecessors, (341), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-07 01:47:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6888 transitions. [2024-11-07 01:47:24,879 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6888 transitions. Word has length 179 [2024-11-07 01:47:24,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:24,879 INFO L471 AbstractCegarLoop]: Abstraction has 4834 states and 6888 transitions. [2024-11-07 01:47:24,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6888 transitions. [2024-11-07 01:47:24,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:24,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:24,882 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, 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 01:47:24,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 01:47:24,882 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:24,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1440346125, now seen corresponding path program 1 times [2024-11-07 01:47:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:24,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439343344] [2024-11-07 01:47:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:24,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:24,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:24,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:25,068 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 01:47:25,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:25,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439343344] [2024-11-07 01:47:25,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439343344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:25,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:25,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:25,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16925218] [2024-11-07 01:47:25,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:25,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:25,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:25,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:25,069 INFO L87 Difference]: Start difference. First operand 4834 states and 6888 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:28,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:28,565 INFO L93 Difference]: Finished difference Result 13306 states and 20161 transitions. [2024-11-07 01:47:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:47:28,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:28,587 INFO L225 Difference]: With dead ends: 13306 [2024-11-07 01:47:28,587 INFO L226 Difference]: Without dead ends: 9928 [2024-11-07 01:47:28,593 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 01:47:28,594 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 1801 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 3613 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:28,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 2931 Invalid, 3715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3613 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:47:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9928 states. [2024-11-07 01:47:29,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9928 to 7863. [2024-11-07 01:47:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7863 states, 7083 states have (on average 1.4657630947338698) internal successors, (10382), 7114 states have internal predecessors, (10382), 509 states have call successors, (509), 227 states have call predecessors, (509), 269 states have return successors, (673), 537 states have call predecessors, (673), 506 states have call successors, (673) [2024-11-07 01:47:29,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7863 states to 7863 states and 11564 transitions. [2024-11-07 01:47:29,156 INFO L78 Accepts]: Start accepts. Automaton has 7863 states and 11564 transitions. Word has length 179 [2024-11-07 01:47:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:29,156 INFO L471 AbstractCegarLoop]: Abstraction has 7863 states and 11564 transitions. [2024-11-07 01:47:29,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7863 states and 11564 transitions. [2024-11-07 01:47:29,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:29,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:29,160 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, 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 01:47:29,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 01:47:29,160 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:29,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:29,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1102058575, now seen corresponding path program 1 times [2024-11-07 01:47:29,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:29,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938347367] [2024-11-07 01:47:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:29,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:29,301 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 01:47:29,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:29,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938347367] [2024-11-07 01:47:29,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938347367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:29,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:29,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:29,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236266042] [2024-11-07 01:47:29,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:29,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:29,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:29,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:29,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:29,303 INFO L87 Difference]: Start difference. First operand 7863 states and 11564 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:31,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:31,232 INFO L93 Difference]: Finished difference Result 16392 states and 25024 transitions. [2024-11-07 01:47:31,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:47:31,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:31,256 INFO L225 Difference]: With dead ends: 16392 [2024-11-07 01:47:31,257 INFO L226 Difference]: Without dead ends: 9985 [2024-11-07 01:47:31,269 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 01:47:31,270 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 1636 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:31,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 1334 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:47:31,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2024-11-07 01:47:31,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 7863. [2024-11-07 01:47:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7863 states, 7083 states have (on average 1.4633629817873783) internal successors, (10365), 7114 states have internal predecessors, (10365), 509 states have call successors, (509), 227 states have call predecessors, (509), 269 states have return successors, (673), 537 states have call predecessors, (673), 506 states have call successors, (673) [2024-11-07 01:47:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7863 states to 7863 states and 11547 transitions. [2024-11-07 01:47:31,872 INFO L78 Accepts]: Start accepts. Automaton has 7863 states and 11547 transitions. Word has length 179 [2024-11-07 01:47:31,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:31,873 INFO L471 AbstractCegarLoop]: Abstraction has 7863 states and 11547 transitions. [2024-11-07 01:47:31,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7863 states and 11547 transitions. [2024-11-07 01:47:31,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:31,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:31,876 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, 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 01:47:31,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-07 01:47:31,877 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:31,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:31,877 INFO L85 PathProgramCache]: Analyzing trace with hash -675504077, now seen corresponding path program 1 times [2024-11-07 01:47:31,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:31,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397440829] [2024-11-07 01:47:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:31,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:31,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:32,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:47:32,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:32,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397440829] [2024-11-07 01:47:32,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397440829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:32,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:32,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:32,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669690846] [2024-11-07 01:47:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:32,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:32,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:32,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:32,098 INFO L87 Difference]: Start difference. First operand 7863 states and 11547 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:47:36,697 INFO L93 Difference]: Finished difference Result 26755 states and 41029 transitions. [2024-11-07 01:47:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:47:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-07 01:47:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:47:36,747 INFO L225 Difference]: With dead ends: 26755 [2024-11-07 01:47:36,747 INFO L226 Difference]: Without dead ends: 20348 [2024-11-07 01:47:36,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:47:36,760 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 2239 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:47:36,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 2917 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-07 01:47:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20348 states. [2024-11-07 01:47:37,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20348 to 13737. [2024-11-07 01:47:37,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13737 states, 12525 states have (on average 1.485748502994012) internal successors, (18609), 12572 states have internal predecessors, (18609), 829 states have call successors, (829), 323 states have call predecessors, (829), 381 states have return successors, (1171), 873 states have call predecessors, (1171), 826 states have call successors, (1171) [2024-11-07 01:47:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13737 states to 13737 states and 20609 transitions. [2024-11-07 01:47:37,740 INFO L78 Accepts]: Start accepts. Automaton has 13737 states and 20609 transitions. Word has length 179 [2024-11-07 01:47:37,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:47:37,740 INFO L471 AbstractCegarLoop]: Abstraction has 13737 states and 20609 transitions. [2024-11-07 01:47:37,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:47:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 13737 states and 20609 transitions. [2024-11-07 01:47:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 01:47:37,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:47:37,750 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, 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 01:47:37,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 01:47:37,750 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:47:37,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:47:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1215933583, now seen corresponding path program 1 times [2024-11-07 01:47:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:47:37,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031135129] [2024-11-07 01:47:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:47:37,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:47:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:37,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:47:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:37,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:47:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:37,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:47:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:47:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:47:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:47:38,012 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 01:47:38,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:47:38,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031135129] [2024-11-07 01:47:38,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031135129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:47:38,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:47:38,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:47:38,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275661696] [2024-11-07 01:47:38,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:47:38,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:47:38,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:47:38,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:47:38,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:47:38,014 INFO L87 Difference]: Start difference. First operand 13737 states and 20609 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)