./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.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/Problem05_label45+token_ring.04.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', 'c77578a373441dc4befdd6b2c62472e20adb967aa702c242a875876828ccf992'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.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 c77578a373441dc4befdd6b2c62472e20adb967aa702c242a875876828ccf992 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:02:28,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:02:28,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:02:28,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:02:28,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:02:28,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:02:28,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:02:28,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:02:28,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:02:28,162 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:02:28,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:02:28,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:02:28,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:02:28,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:02:28,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:02:28,163 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:02:28,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:02:28,164 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:02:28,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:02:28,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:02:28,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:02:28,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:02:28,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:02:28,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:02:28,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:02:28,167 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 -> c77578a373441dc4befdd6b2c62472e20adb967aa702c242a875876828ccf992 [2024-11-07 01:02:28,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:02:28,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:02:28,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:02:28,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:02:28,473 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:02:28,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.cil-1.c [2024-11-07 01:02:29,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:02:30,450 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:02:30,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.cil-1.c [2024-11-07 01:02:30,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d253a0fa/aec3cd538f934cfbb0e07639a5964418/FLAGb8f78b88f [2024-11-07 01:02:30,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d253a0fa/aec3cd538f934cfbb0e07639a5964418 [2024-11-07 01:02:30,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:02:30,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:02:30,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:02:30,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:02:30,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:02:30,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:30" (1/1) ... [2024-11-07 01:02:30,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db69e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30, skipping insertion in model container [2024-11-07 01:02:30,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:30" (1/1) ... [2024-11-07 01:02:30,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:02:31,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.cil-1.c[380323,380336] [2024-11-07 01:02:31,943 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.cil-1.c[383339,383352] [2024-11-07 01:02:32,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:02:32,127 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:02:32,749 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.cil-1.c[380323,380336] [2024-11-07 01:02:32,754 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.04.cil-1.c[383339,383352] [2024-11-07 01:02:32,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:02:32,825 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:02:32,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32 WrapperNode [2024-11-07 01:02:32,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:02:32,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:02:32,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:02:32,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:02:32,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:32,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,476 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12753 [2024-11-07 01:02:33,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:02:33,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:02:33,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:02:33,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:02:33,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,656 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 01:02:33,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:33,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:34,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:02:34,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:02:34,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:02:34,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:02:34,025 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (1/1) ... [2024-11-07 01:02:34,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:02:34,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:02:34,059 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 01:02:34,107 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 01:02:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:02:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:02:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:02:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:02:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:02:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:02:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:02:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:02:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:02:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:02:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:02:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:02:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:02:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:02:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:02:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:02:34,374 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:02:34,376 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:02:42,628 INFO L? ?]: Removed 1707 outVars from TransFormulas that were not future-live. [2024-11-07 01:02:42,628 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:02:42,685 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:02:42,687 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-07 01:02:42,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:42 BoogieIcfgContainer [2024-11-07 01:02:42,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:02:42,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:02:42,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:02:42,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:02:42,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:02:30" (1/3) ... [2024-11-07 01:02:42,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbc6c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:42, skipping insertion in model container [2024-11-07 01:02:42,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:32" (2/3) ... [2024-11-07 01:02:42,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbc6c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:42, skipping insertion in model container [2024-11-07 01:02:42,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:42" (3/3) ... [2024-11-07 01:02:42,698 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.04.cil-1.c [2024-11-07 01:02:42,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:02:42,712 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:02:42,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:02:42,860 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;@384d2ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:02:42,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:02:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 2370 states, 2343 states have (on average 1.8523260776781905) internal successors, (4340), 2346 states have internal predecessors, (4340), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-07 01:02:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:42,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:42,888 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] [2024-11-07 01:02:42,888 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:42,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1995785756, now seen corresponding path program 1 times [2024-11-07 01:02:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820466034] [2024-11-07 01:02:42,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:42,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:43,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:43,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:43,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:43,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:43,341 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 01:02:43,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:43,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820466034] [2024-11-07 01:02:43,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820466034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:43,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:43,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:02:43,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193794766] [2024-11-07 01:02:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:43,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:02:43,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:43,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:02:43,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:02:43,379 INFO L87 Difference]: Start difference. First operand has 2370 states, 2343 states have (on average 1.8523260776781905) internal successors, (4340), 2346 states have internal predecessors, (4340), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:44,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:44,321 INFO L93 Difference]: Finished difference Result 4788 states and 8834 transitions. [2024-11-07 01:02:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:02:44,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:44,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:44,349 INFO L225 Difference]: With dead ends: 4788 [2024-11-07 01:02:44,350 INFO L226 Difference]: Without dead ends: 2357 [2024-11-07 01:02:44,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:02:44,367 INFO L432 NwaCegarLoop]: 4199 mSDtfsCounter, 443 mSDsluCounter, 12267 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 16466 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:44,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 16466 Invalid, 460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:02:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-07 01:02:44,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2303. [2024-11-07 01:02:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2277 states have (on average 1.8414580588493632) internal successors, (4193), 2279 states have internal predecessors, (4193), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-07 01:02:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 4229 transitions. [2024-11-07 01:02:44,539 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 4229 transitions. Word has length 90 [2024-11-07 01:02:44,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:44,541 INFO L471 AbstractCegarLoop]: Abstraction has 2303 states and 4229 transitions. [2024-11-07 01:02:44,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:44,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 4229 transitions. [2024-11-07 01:02:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:44,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:44,547 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] [2024-11-07 01:02:44,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:02:44,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:44,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash -937947678, now seen corresponding path program 1 times [2024-11-07 01:02:44,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:44,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373403678] [2024-11-07 01:02:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:44,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:44,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:44,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:44,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:44,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:44,873 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 01:02:44,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:44,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373403678] [2024-11-07 01:02:44,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373403678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:44,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:44,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:02:44,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14280535] [2024-11-07 01:02:44,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:44,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:02:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:02:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:02:44,877 INFO L87 Difference]: Start difference. First operand 2303 states and 4229 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:46,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:46,060 INFO L93 Difference]: Finished difference Result 2753 states and 4926 transitions. [2024-11-07 01:02:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:02:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:46,076 INFO L225 Difference]: With dead ends: 2753 [2024-11-07 01:02:46,077 INFO L226 Difference]: Without dead ends: 2583 [2024-11-07 01:02:46,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:02:46,080 INFO L432 NwaCegarLoop]: 4116 mSDtfsCounter, 4603 mSDsluCounter, 12334 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4614 SdHoareTripleChecker+Valid, 16450 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:46,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4614 Valid, 16450 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:02:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2024-11-07 01:02:46,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2476. [2024-11-07 01:02:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2430 states have (on average 1.8213991769547324) internal successors, (4426), 2433 states have internal predecessors, (4426), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-11-07 01:02:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4491 transitions. [2024-11-07 01:02:46,178 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4491 transitions. Word has length 90 [2024-11-07 01:02:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:46,178 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4491 transitions. [2024-11-07 01:02:46,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4491 transitions. [2024-11-07 01:02:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:46,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:46,183 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] [2024-11-07 01:02:46,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:02:46,185 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:46,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:46,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2112607130, now seen corresponding path program 1 times [2024-11-07 01:02:46,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:46,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332085925] [2024-11-07 01:02:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:46,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:46,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:46,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:46,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:46,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:46,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:46,444 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 01:02:46,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:46,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332085925] [2024-11-07 01:02:46,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332085925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:46,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:46,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:46,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017169136] [2024-11-07 01:02:46,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:46,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:46,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:46,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:46,448 INFO L87 Difference]: Start difference. First operand 2476 states and 4491 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:48,098 INFO L93 Difference]: Finished difference Result 3156 states and 5538 transitions. [2024-11-07 01:02:48,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:02:48,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:48,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:48,113 INFO L225 Difference]: With dead ends: 3156 [2024-11-07 01:02:48,114 INFO L226 Difference]: Without dead ends: 2813 [2024-11-07 01:02:48,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:02:48,117 INFO L432 NwaCegarLoop]: 4231 mSDtfsCounter, 4606 mSDsluCounter, 16725 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 20956 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:48,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 20956 Invalid, 1524 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:02:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2024-11-07 01:02:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2638. [2024-11-07 01:02:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2572 states have (on average 1.802877138413686) internal successors, (4637), 2576 states have internal predecessors, (4637), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-11-07 01:02:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 4730 transitions. [2024-11-07 01:02:48,241 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 4730 transitions. Word has length 90 [2024-11-07 01:02:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:48,241 INFO L471 AbstractCegarLoop]: Abstraction has 2638 states and 4730 transitions. [2024-11-07 01:02:48,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 4730 transitions. [2024-11-07 01:02:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:48,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:48,243 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] [2024-11-07 01:02:48,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:02:48,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:48,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:48,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1225384284, now seen corresponding path program 1 times [2024-11-07 01:02:48,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:48,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164570307] [2024-11-07 01:02:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:48,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:48,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:48,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:48,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:48,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:48,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:48,464 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 01:02:48,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:48,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164570307] [2024-11-07 01:02:48,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164570307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:48,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:48,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:48,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235425730] [2024-11-07 01:02:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:48,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:48,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:48,467 INFO L87 Difference]: Start difference. First operand 2638 states and 4730 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:49,921 INFO L93 Difference]: Finished difference Result 3749 states and 6435 transitions. [2024-11-07 01:02:49,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:02:49,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:49,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:49,938 INFO L225 Difference]: With dead ends: 3749 [2024-11-07 01:02:49,938 INFO L226 Difference]: Without dead ends: 3244 [2024-11-07 01:02:49,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:02:49,943 INFO L432 NwaCegarLoop]: 4126 mSDtfsCounter, 4654 mSDsluCounter, 16435 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:49,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 20561 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:02:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2024-11-07 01:02:50,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2963. [2024-11-07 01:02:50,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2857 states have (on average 1.7710885544277213) internal successors, (5060), 2863 states have internal predecessors, (5060), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2024-11-07 01:02:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 5213 transitions. [2024-11-07 01:02:50,076 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 5213 transitions. Word has length 90 [2024-11-07 01:02:50,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:50,077 INFO L471 AbstractCegarLoop]: Abstraction has 2963 states and 5213 transitions. [2024-11-07 01:02:50,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:50,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 5213 transitions. [2024-11-07 01:02:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:50,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:50,079 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] [2024-11-07 01:02:50,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:02:50,080 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:50,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:50,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1158540454, now seen corresponding path program 1 times [2024-11-07 01:02:50,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:50,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3680024] [2024-11-07 01:02:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:50,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:50,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:50,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:50,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:50,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:50,287 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 01:02:50,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:50,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3680024] [2024-11-07 01:02:50,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3680024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:50,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:50,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:50,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034134155] [2024-11-07 01:02:50,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:50,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:50,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:50,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:50,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:50,289 INFO L87 Difference]: Start difference. First operand 2963 states and 5213 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:51,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:51,700 INFO L93 Difference]: Finished difference Result 4894 states and 8162 transitions. [2024-11-07 01:02:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:02:51,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:51,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:51,722 INFO L225 Difference]: With dead ends: 4894 [2024-11-07 01:02:51,723 INFO L226 Difference]: Without dead ends: 4064 [2024-11-07 01:02:51,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:02:51,731 INFO L432 NwaCegarLoop]: 4229 mSDtfsCounter, 4604 mSDsluCounter, 16725 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4615 SdHoareTripleChecker+Valid, 20954 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:51,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4615 Valid, 20954 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:02:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4064 states. [2024-11-07 01:02:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4064 to 3614. [2024-11-07 01:02:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 3428 states have (on average 1.7228704784130688) internal successors, (5906), 3438 states have internal predecessors, (5906), 122 states have call successors, (122), 54 states have call predecessors, (122), 62 states have return successors, (157), 129 states have call predecessors, (157), 122 states have call successors, (157) [2024-11-07 01:02:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 6185 transitions. [2024-11-07 01:02:51,923 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 6185 transitions. Word has length 90 [2024-11-07 01:02:51,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:51,924 INFO L471 AbstractCegarLoop]: Abstraction has 3614 states and 6185 transitions. [2024-11-07 01:02:51,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 6185 transitions. [2024-11-07 01:02:51,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:51,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:51,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:02:51,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:02:51,927 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:51,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1235441252, now seen corresponding path program 1 times [2024-11-07 01:02:51,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:51,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936666568] [2024-11-07 01:02:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:51,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:52,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:52,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:52,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:52,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:52,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:52,141 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 01:02:52,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:52,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936666568] [2024-11-07 01:02:52,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936666568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:52,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:52,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:52,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104695494] [2024-11-07 01:02:52,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:52,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:52,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:52,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:52,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:52,143 INFO L87 Difference]: Start difference. First operand 3614 states and 6185 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:53,646 INFO L93 Difference]: Finished difference Result 7696 states and 12390 transitions. [2024-11-07 01:02:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:02:53,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:53,671 INFO L225 Difference]: With dead ends: 7696 [2024-11-07 01:02:53,672 INFO L226 Difference]: Without dead ends: 6215 [2024-11-07 01:02:53,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:02:53,679 INFO L432 NwaCegarLoop]: 4227 mSDtfsCounter, 4774 mSDsluCounter, 16717 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 20944 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:53,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 20944 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:02:53,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2024-11-07 01:02:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 4906. [2024-11-07 01:02:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4906 states, 4568 states have (on average 1.665061295971979) internal successors, (7606), 4586 states have internal predecessors, (7606), 218 states have call successors, (218), 102 states have call predecessors, (218), 118 states have return successors, (315), 233 states have call predecessors, (315), 218 states have call successors, (315) [2024-11-07 01:02:53,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 8139 transitions. [2024-11-07 01:02:53,874 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 8139 transitions. Word has length 90 [2024-11-07 01:02:53,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:53,874 INFO L471 AbstractCegarLoop]: Abstraction has 4906 states and 8139 transitions. [2024-11-07 01:02:53,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:53,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 8139 transitions. [2024-11-07 01:02:53,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:53,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:53,878 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] [2024-11-07 01:02:53,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:02:53,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:53,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:53,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1151068254, now seen corresponding path program 1 times [2024-11-07 01:02:53,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:53,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880379431] [2024-11-07 01:02:53,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:53,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:53,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:53,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:54,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:54,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:54,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:54,023 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 01:02:54,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:54,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880379431] [2024-11-07 01:02:54,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880379431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:54,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:54,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:54,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729686141] [2024-11-07 01:02:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:54,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:54,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:54,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:54,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:54,025 INFO L87 Difference]: Start difference. First operand 4906 states and 8139 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:55,522 INFO L93 Difference]: Finished difference Result 12534 states and 19766 transitions. [2024-11-07 01:02:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:02:55,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:55,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:55,570 INFO L225 Difference]: With dead ends: 12534 [2024-11-07 01:02:55,570 INFO L226 Difference]: Without dead ends: 9761 [2024-11-07 01:02:55,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:02:55,584 INFO L432 NwaCegarLoop]: 4226 mSDtfsCounter, 4631 mSDsluCounter, 16714 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 20940 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:55,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4641 Valid, 20940 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:02:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2024-11-07 01:02:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 7399. [2024-11-07 01:02:55,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7399 states, 6765 states have (on average 1.608277900960828) internal successors, (10880), 6799 states have internal predecessors, (10880), 402 states have call successors, (402), 198 states have call predecessors, (402), 230 states have return successors, (677), 433 states have call predecessors, (677), 402 states have call successors, (677) [2024-11-07 01:02:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7399 states to 7399 states and 11959 transitions. [2024-11-07 01:02:55,921 INFO L78 Accepts]: Start accepts. Automaton has 7399 states and 11959 transitions. Word has length 90 [2024-11-07 01:02:55,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:55,921 INFO L471 AbstractCegarLoop]: Abstraction has 7399 states and 11959 transitions. [2024-11-07 01:02:55,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 7399 states and 11959 transitions. [2024-11-07 01:02:55,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:55,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:55,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:02:55,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:02:55,928 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:55,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:55,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1643694428, now seen corresponding path program 1 times [2024-11-07 01:02:55,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:55,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208365982] [2024-11-07 01:02:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:55,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:56,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:56,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:56,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:56,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:56,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:56,197 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 01:02:56,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208365982] [2024-11-07 01:02:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208365982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:56,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:56,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128768311] [2024-11-07 01:02:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:56,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:56,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:56,199 INFO L87 Difference]: Start difference. First operand 7399 states and 11959 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:57,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:02:57,847 INFO L93 Difference]: Finished difference Result 21673 states and 33860 transitions. [2024-11-07 01:02:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:02:57,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:02:57,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:02:57,919 INFO L225 Difference]: With dead ends: 21673 [2024-11-07 01:02:57,919 INFO L226 Difference]: Without dead ends: 16407 [2024-11-07 01:02:57,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:02:57,948 INFO L432 NwaCegarLoop]: 4227 mSDtfsCounter, 4694 mSDsluCounter, 16717 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4710 SdHoareTripleChecker+Valid, 20944 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:02:57,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4710 Valid, 20944 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:02:57,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16407 states. [2024-11-07 01:02:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16407 to 12448. [2024-11-07 01:02:58,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12448 states, 11238 states have (on average 1.5634454529275672) internal successors, (17570), 11304 states have internal predecessors, (17570), 754 states have call successors, (754), 390 states have call predecessors, (754), 454 states have return successors, (1547), 817 states have call predecessors, (1547), 754 states have call successors, (1547) [2024-11-07 01:02:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12448 states to 12448 states and 19871 transitions. [2024-11-07 01:02:58,671 INFO L78 Accepts]: Start accepts. Automaton has 12448 states and 19871 transitions. Word has length 90 [2024-11-07 01:02:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:58,671 INFO L471 AbstractCegarLoop]: Abstraction has 12448 states and 19871 transitions. [2024-11-07 01:02:58,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 12448 states and 19871 transitions. [2024-11-07 01:02:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:02:58,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:58,682 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] [2024-11-07 01:02:58,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:02:58,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:58,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash -689754270, now seen corresponding path program 1 times [2024-11-07 01:02:58,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:58,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890952537] [2024-11-07 01:02:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:58,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:58,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:58,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:02:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:58,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:02:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:58,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:02:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:58,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:02:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:58,828 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 01:02:58,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:58,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890952537] [2024-11-07 01:02:58,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890952537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:58,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:58,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:58,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324061229] [2024-11-07 01:02:58,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:58,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:58,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:58,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:58,830 INFO L87 Difference]: Start difference. First operand 12448 states and 19871 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:00,857 INFO L93 Difference]: Finished difference Result 39568 states and 62106 transitions. [2024-11-07 01:03:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:03:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:03:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:01,000 INFO L225 Difference]: With dead ends: 39568 [2024-11-07 01:03:01,001 INFO L226 Difference]: Without dead ends: 29253 [2024-11-07 01:03:01,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:03:01,050 INFO L432 NwaCegarLoop]: 4227 mSDtfsCounter, 4654 mSDsluCounter, 16717 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 20944 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:01,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4670 Valid, 20944 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 01:03:01,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29253 states. [2024-11-07 01:03:02,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29253 to 22513. [2024-11-07 01:03:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22513 states, 20183 states have (on average 1.5349551602834068) internal successors, (30980), 20313 states have internal predecessors, (30980), 1426 states have call successors, (1426), 774 states have call predecessors, (1426), 902 states have return successors, (3741), 1553 states have call predecessors, (3741), 1426 states have call successors, (3741) [2024-11-07 01:03:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22513 states to 22513 states and 36147 transitions. [2024-11-07 01:03:02,825 INFO L78 Accepts]: Start accepts. Automaton has 22513 states and 36147 transitions. Word has length 90 [2024-11-07 01:03:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:02,825 INFO L471 AbstractCegarLoop]: Abstraction has 22513 states and 36147 transitions. [2024-11-07 01:03:02,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 22513 states and 36147 transitions. [2024-11-07 01:03:02,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:03:02,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:02,844 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] [2024-11-07 01:03:02,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:03:02,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:02,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1905907996, now seen corresponding path program 1 times [2024-11-07 01:03:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:02,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970704265] [2024-11-07 01:03:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:02,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:02,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:03:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:02,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:03:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:02,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:03:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:02,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:03:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:02,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970704265] [2024-11-07 01:03:02,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970704265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:02,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:02,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:02,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744658353] [2024-11-07 01:03:02,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:02,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:02,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:02,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:02,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:02,983 INFO L87 Difference]: Start difference. First operand 22513 states and 36147 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:06,169 INFO L93 Difference]: Finished difference Result 74103 states and 118584 transitions. [2024-11-07 01:03:06,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:03:06,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:03:06,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:06,467 INFO L225 Difference]: With dead ends: 74103 [2024-11-07 01:03:06,467 INFO L226 Difference]: Without dead ends: 53723 [2024-11-07 01:03:06,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:03:06,547 INFO L432 NwaCegarLoop]: 4216 mSDtfsCounter, 4596 mSDsluCounter, 16702 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4606 SdHoareTripleChecker+Valid, 20918 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:06,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4606 Valid, 20918 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:03:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53723 states. [2024-11-07 01:03:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53723 to 42554. [2024-11-07 01:03:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42554 states, 38064 states have (on average 1.519913829340059) internal successors, (57854), 38322 states have internal predecessors, (57854), 2698 states have call successors, (2698), 1534 states have call predecessors, (2698), 1790 states have return successors, (9515), 2953 states have call predecessors, (9515), 2698 states have call successors, (9515) [2024-11-07 01:03:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42554 states to 42554 states and 70067 transitions. [2024-11-07 01:03:09,526 INFO L78 Accepts]: Start accepts. Automaton has 42554 states and 70067 transitions. Word has length 90 [2024-11-07 01:03:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:09,528 INFO L471 AbstractCegarLoop]: Abstraction has 42554 states and 70067 transitions. [2024-11-07 01:03:09,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 42554 states and 70067 transitions. [2024-11-07 01:03:09,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:03:09,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:09,574 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] [2024-11-07 01:03:09,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:03:09,574 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:09,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:09,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1657091874, now seen corresponding path program 1 times [2024-11-07 01:03:09,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:09,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826005301] [2024-11-07 01:03:09,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:09,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:09,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:09,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:03:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:09,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:03:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:09,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:03:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:09,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:03:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:09,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:09,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826005301] [2024-11-07 01:03:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826005301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:09,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:09,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:03:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914000701] [2024-11-07 01:03:09,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:09,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:03:09,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:09,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:03:09,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:03:09,710 INFO L87 Difference]: Start difference. First operand 42554 states and 70067 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:13,879 INFO L93 Difference]: Finished difference Result 116705 states and 188614 transitions. [2024-11-07 01:03:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:03:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-07 01:03:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:14,270 INFO L225 Difference]: With dead ends: 116705 [2024-11-07 01:03:14,270 INFO L226 Difference]: Without dead ends: 76285 [2024-11-07 01:03:14,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 01:03:14,415 INFO L432 NwaCegarLoop]: 4265 mSDtfsCounter, 4802 mSDsluCounter, 12442 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4831 SdHoareTripleChecker+Valid, 16707 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:14,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4831 Valid, 16707 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:03:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76285 states. [2024-11-07 01:03:18,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76285 to 62590. [2024-11-07 01:03:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62590 states, 55776 states have (on average 1.5023666092943202) internal successors, (83796), 56291 states have internal predecessors, (83796), 4120 states have call successors, (4120), 2308 states have call predecessors, (4120), 2692 states have return successors, (13125), 4246 states have call predecessors, (13125), 4120 states have call successors, (13125) [2024-11-07 01:03:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62590 states to 62590 states and 101041 transitions. [2024-11-07 01:03:18,650 INFO L78 Accepts]: Start accepts. Automaton has 62590 states and 101041 transitions. Word has length 90 [2024-11-07 01:03:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:18,651 INFO L471 AbstractCegarLoop]: Abstraction has 62590 states and 101041 transitions. [2024-11-07 01:03:18,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:18,651 INFO L276 IsEmpty]: Start isEmpty. Operand 62590 states and 101041 transitions. [2024-11-07 01:03:18,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-07 01:03:18,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:18,816 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-07 01:03:18,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:03:18,816 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:18,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:18,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1759816949, now seen corresponding path program 1 times [2024-11-07 01:03:18,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:18,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883411600] [2024-11-07 01:03:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:18,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 01:03:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:03:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 01:03:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 01:03:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-07 01:03:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 01:03:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 01:03:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 01:03:18,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:18,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883411600] [2024-11-07 01:03:18,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883411600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:03:18,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185985565] [2024-11-07 01:03:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:18,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:03:19,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:03:19,006 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 01:03:19,188 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 01:03:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:19,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:03:19,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:03:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-07 01:03:19,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:03:19,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185985565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:19,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:03:19,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-07 01:03:19,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96579597] [2024-11-07 01:03:19,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:19,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:03:19,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:19,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:03:19,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:03:19,434 INFO L87 Difference]: Start difference. First operand 62590 states and 101041 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-07 01:03:23,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:23,855 INFO L93 Difference]: Finished difference Result 182123 states and 294551 transitions. [2024-11-07 01:03:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:03:23,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-11-07 01:03:23,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:24,434 INFO L225 Difference]: With dead ends: 182123 [2024-11-07 01:03:24,435 INFO L226 Difference]: Without dead ends: 121667 [2024-11-07 01:03:24,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:03:24,611 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 4178 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:24,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 4467 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:03:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121667 states.