./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.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_label41+token_ring.01.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', '738a2e75c3974a334a4730af8ad8a1bca696e22b6aef9e5670f827b7767c7884'] 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_label41+token_ring.01.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 738a2e75c3974a334a4730af8ad8a1bca696e22b6aef9e5670f827b7767c7884 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:55:24,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:55:24,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:55:24,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:55:24,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:55:24,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:55:24,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:55:24,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:55:24,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:55:24,708 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:55:24,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:55:24,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:55:24,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:55:24,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:55:24,710 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:55:24,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:55:24,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:55:24,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:55:24,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:55:24,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:55:24,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:55:24,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:55:24,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:55:24,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:55:24,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:55:24,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:55:24,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:55:24,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:55:24,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:55:24,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:55:24,713 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:55:24,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:55:24,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:55:24,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:55:24,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:55:24,714 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:55:24,714 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:55:24,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:55:24,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:55:24,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:55:24,715 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:55:24,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:55:24,715 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 -> 738a2e75c3974a334a4730af8ad8a1bca696e22b6aef9e5670f827b7767c7884 [2024-11-07 00:55:25,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:55:25,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:55:25,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:55:25,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:55:25,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:55:25,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.cil-1.c [2024-11-07 00:55:26,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:55:27,038 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:55:27,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.cil-1.c [2024-11-07 00:55:27,096 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac71968cd/952a83a1323c463ab811ec6b3090f73b/FLAG3945edb21 [2024-11-07 00:55:27,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac71968cd/952a83a1323c463ab811ec6b3090f73b [2024-11-07 00:55:27,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:55:27,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:55:27,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:55:27,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:55:27,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:55:27,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:27" (1/1) ... [2024-11-07 00:55:27,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496d4ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:27, skipping insertion in model container [2024-11-07 00:55:27,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:27" (1/1) ... [2024-11-07 00:55:27,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:55:28,457 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_label41+token_ring.01.cil-1.c[376251,376264] [2024-11-07 00:55:28,492 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_label41+token_ring.01.cil-1.c[383339,383352] [2024-11-07 00:55:28,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:55:28,631 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:55:29,253 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_label41+token_ring.01.cil-1.c[376251,376264] [2024-11-07 00:55:29,263 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_label41+token_ring.01.cil-1.c[383339,383352] [2024-11-07 00:55:29,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:55:29,324 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:55:29,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29 WrapperNode [2024-11-07 00:55:29,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:55:29,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:55:29,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:55:29,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:55:29,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:29,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:29,920 INFO L138 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12573 [2024-11-07 00:55:29,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:55:29,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:55:29,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:55:29,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:55:29,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:29,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:29,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,076 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 00:55:30,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:55:30,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:55:30,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:55:30,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:55:30,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (1/1) ... [2024-11-07 00:55:30,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:55:30,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:30,554 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 00:55:30,558 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 00:55:30,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:55:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 00:55:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 00:55:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 00:55:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 00:55:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 00:55:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 00:55:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 00:55:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 00:55:30,581 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 00:55:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 00:55:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:55:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 00:55:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 00:55:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:55:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:55:30,697 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:55:30,699 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:55:39,351 INFO L? ?]: Removed 1689 outVars from TransFormulas that were not future-live. [2024-11-07 00:55:39,352 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:55:39,421 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:55:39,421 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-07 00:55:39,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:55:39 BoogieIcfgContainer [2024-11-07 00:55:39,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:55:39,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:55:39,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:55:39,429 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:55:39,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:55:27" (1/3) ... [2024-11-07 00:55:39,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa5e4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:55:39, skipping insertion in model container [2024-11-07 00:55:39,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:29" (2/3) ... [2024-11-07 00:55:39,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa5e4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:55:39, skipping insertion in model container [2024-11-07 00:55:39,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:55:39" (3/3) ... [2024-11-07 00:55:39,432 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.01.cil-1.c [2024-11-07 00:55:39,446 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:55:39,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 00:55:39,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:55:39,583 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;@2ce54c05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:55:39,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 00:55:39,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2268 states have (on average 1.8580246913580247) internal successors, (4214), 2271 states have internal predecessors, (4214), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 00:55:39,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:55:39,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:39,610 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] [2024-11-07 00:55:39,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:39,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:39,616 INFO L85 PathProgramCache]: Analyzing trace with hash -933589418, now seen corresponding path program 1 times [2024-11-07 00:55:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:39,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607345555] [2024-11-07 00:55:39,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:39,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:40,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:40,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:40,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:40,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:40,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:40,149 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 00:55:40,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:40,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607345555] [2024-11-07 00:55:40,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607345555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:40,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:55:40,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:55:40,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849652150] [2024-11-07 00:55:40,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:40,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:55:40,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:40,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:55:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:55:40,187 INFO L87 Difference]: Start difference. First operand has 2292 states, 2268 states have (on average 1.8580246913580247) internal successors, (4214), 2271 states have internal predecessors, (4214), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 00:55:41,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:41,045 INFO L93 Difference]: Finished difference Result 4711 states and 8684 transitions. [2024-11-07 00:55:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:55:41,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 57 [2024-11-07 00:55:41,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:41,080 INFO L225 Difference]: With dead ends: 4711 [2024-11-07 00:55:41,080 INFO L226 Difference]: Without dead ends: 2358 [2024-11-07 00:55:41,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:55:41,096 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4323 mSDsluCounter, 12350 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4331 SdHoareTripleChecker+Valid, 16474 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:41,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4331 Valid, 16474 Invalid, 482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:55:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-07 00:55:41,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2317. [2024-11-07 00:55:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2277 states have (on average 1.8361879666227492) internal successors, (4181), 2280 states have internal predecessors, (4181), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2024-11-07 00:55:41,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 4234 transitions. [2024-11-07 00:55:41,255 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 4234 transitions. Word has length 57 [2024-11-07 00:55:41,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:41,255 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 4234 transitions. [2024-11-07 00:55:41,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 00:55:41,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 4234 transitions. [2024-11-07 00:55:41,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:55:41,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:41,261 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] [2024-11-07 00:55:41,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:55:41,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:41,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1845541414, now seen corresponding path program 1 times [2024-11-07 00:55:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:41,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524542376] [2024-11-07 00:55:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:41,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:41,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:41,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:41,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:41,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:41,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:41,486 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 00:55:41,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:41,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524542376] [2024-11-07 00:55:41,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524542376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:41,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:55:41,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:55:41,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500802810] [2024-11-07 00:55:41,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:41,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:55:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:55:41,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:55:41,492 INFO L87 Difference]: Start difference. First operand 2317 states and 4234 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 00:55:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:42,330 INFO L93 Difference]: Finished difference Result 2655 states and 4714 transitions. [2024-11-07 00:55:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:55:42,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-07 00:55:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:42,349 INFO L225 Difference]: With dead ends: 2655 [2024-11-07 00:55:42,349 INFO L226 Difference]: Without dead ends: 2468 [2024-11-07 00:55:42,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 00:55:42,354 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4245 mSDsluCounter, 16317 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4253 SdHoareTripleChecker+Valid, 20435 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:42,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4253 Valid, 20435 Invalid, 737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:55:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-07 00:55:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2404. [2024-11-07 00:55:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 2347 states have (on average 1.8227524499360885) internal successors, (4278), 2351 states have internal predecessors, (4278), 35 states have call successors, (35), 18 states have call predecessors, (35), 20 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40) [2024-11-07 00:55:42,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 4353 transitions. [2024-11-07 00:55:42,457 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 4353 transitions. Word has length 57 [2024-11-07 00:55:42,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:42,458 INFO L471 AbstractCegarLoop]: Abstraction has 2404 states and 4353 transitions. [2024-11-07 00:55:42,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 00:55:42,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 4353 transitions. [2024-11-07 00:55:42,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:55:42,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:42,462 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] [2024-11-07 00:55:42,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:55:42,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:42,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash 400038040, now seen corresponding path program 1 times [2024-11-07 00:55:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:42,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67758058] [2024-11-07 00:55:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:42,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:42,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:42,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:42,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:42,633 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 00:55:42,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:42,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67758058] [2024-11-07 00:55:42,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67758058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:42,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:55:42,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:55:42,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632846559] [2024-11-07 00:55:42,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:42,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:55:42,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:42,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:55:42,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:55:42,637 INFO L87 Difference]: Start difference. First operand 2404 states and 4353 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 00:55:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:43,839 INFO L93 Difference]: Finished difference Result 2997 states and 5187 transitions. [2024-11-07 00:55:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:55:43,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-07 00:55:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:43,857 INFO L225 Difference]: With dead ends: 2997 [2024-11-07 00:55:43,857 INFO L226 Difference]: Without dead ends: 2723 [2024-11-07 00:55:43,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:55:43,862 INFO L432 NwaCegarLoop]: 4114 mSDtfsCounter, 4300 mSDsluCounter, 16309 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4310 SdHoareTripleChecker+Valid, 20423 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:43,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4310 Valid, 20423 Invalid, 731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:55:43,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-07 00:55:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2573. [2024-11-07 00:55:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2484 states have (on average 1.7991143317230274) internal successors, (4469), 2490 states have internal predecessors, (4469), 53 states have call successors, (53), 30 states have call predecessors, (53), 34 states have return successors, (66), 56 states have call predecessors, (66), 53 states have call successors, (66) [2024-11-07 00:55:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4588 transitions. [2024-11-07 00:55:43,977 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4588 transitions. Word has length 57 [2024-11-07 00:55:43,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:43,977 INFO L471 AbstractCegarLoop]: Abstraction has 2573 states and 4588 transitions. [2024-11-07 00:55:43,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 00:55:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4588 transitions. [2024-11-07 00:55:43,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:55:43,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:43,981 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] [2024-11-07 00:55:43,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:55:43,981 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:43,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:43,981 INFO L85 PathProgramCache]: Analyzing trace with hash -497355238, now seen corresponding path program 1 times [2024-11-07 00:55:43,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:43,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941088416] [2024-11-07 00:55:43,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:43,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:44,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:44,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:44,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:44,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:44,147 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 00:55:44,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941088416] [2024-11-07 00:55:44,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941088416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:44,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:55:44,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:55:44,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963301772] [2024-11-07 00:55:44,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:44,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:55:44,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:44,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:55:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:55:44,149 INFO L87 Difference]: Start difference. First operand 2573 states and 4588 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 00:55:44,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:44,940 INFO L93 Difference]: Finished difference Result 3531 states and 5930 transitions. [2024-11-07 00:55:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:55:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-07 00:55:44,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:44,958 INFO L225 Difference]: With dead ends: 3531 [2024-11-07 00:55:44,958 INFO L226 Difference]: Without dead ends: 3088 [2024-11-07 00:55:44,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:55:44,963 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4240 mSDsluCounter, 16291 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 20393 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:44,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 20393 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:55:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2024-11-07 00:55:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2880. [2024-11-07 00:55:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2733 states have (on average 1.761068422978412) internal successors, (4813), 2743 states have internal predecessors, (4813), 85 states have call successors, (85), 52 states have call predecessors, (85), 60 states have return successors, (120), 92 states have call predecessors, (120), 85 states have call successors, (120) [2024-11-07 00:55:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 5018 transitions. [2024-11-07 00:55:45,093 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 5018 transitions. Word has length 57 [2024-11-07 00:55:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:45,094 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 5018 transitions. [2024-11-07 00:55:45,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 00:55:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 5018 transitions. [2024-11-07 00:55:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:55:45,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:45,096 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] [2024-11-07 00:55:45,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:55:45,097 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:45,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:45,097 INFO L85 PathProgramCache]: Analyzing trace with hash -249208744, now seen corresponding path program 1 times [2024-11-07 00:55:45,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:45,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125909650] [2024-11-07 00:55:45,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:45,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:45,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:45,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:45,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:45,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:55:45,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:45,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125909650] [2024-11-07 00:55:45,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125909650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:45,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:55:45,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:55:45,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951416141] [2024-11-07 00:55:45,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:45,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:55:45,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:45,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:55:45,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:55:45,220 INFO L87 Difference]: Start difference. First operand 2880 states and 5018 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 00:55:45,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:45,911 INFO L93 Difference]: Finished difference Result 4245 states and 6940 transitions. [2024-11-07 00:55:45,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:55:45,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 57 [2024-11-07 00:55:45,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:45,931 INFO L225 Difference]: With dead ends: 4245 [2024-11-07 00:55:45,931 INFO L226 Difference]: Without dead ends: 3496 [2024-11-07 00:55:45,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:55:45,936 INFO L432 NwaCegarLoop]: 4134 mSDtfsCounter, 4360 mSDsluCounter, 12168 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 16302 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:45,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 16302 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:55:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2024-11-07 00:55:46,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3291. [2024-11-07 00:55:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 3061 states have (on average 1.714799085266253) internal successors, (5249), 3080 states have internal predecessors, (5249), 134 states have call successors, (134), 82 states have call predecessors, (134), 94 states have return successors, (179), 136 states have call predecessors, (179), 134 states have call successors, (179) [2024-11-07 00:55:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 5562 transitions. [2024-11-07 00:55:46,059 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 5562 transitions. Word has length 57 [2024-11-07 00:55:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:46,059 INFO L471 AbstractCegarLoop]: Abstraction has 3291 states and 5562 transitions. [2024-11-07 00:55:46,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 00:55:46,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 5562 transitions. [2024-11-07 00:55:46,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 00:55:46,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:46,063 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:46,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:55:46,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:46,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -511188062, now seen corresponding path program 1 times [2024-11-07 00:55:46,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:46,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626664637] [2024-11-07 00:55:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:46,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:55:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 00:55:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 00:55:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626664637] [2024-11-07 00:55:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626664637] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186979256] [2024-11-07 00:55:46,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:46,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:46,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:46,225 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 00:55:46,227 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 00:55:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:46,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:55:46,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:46,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 00:55:46,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:46,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186979256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:46,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:46,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:55:46,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584199168] [2024-11-07 00:55:46,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:46,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:46,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:46,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:46,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:46,361 INFO L87 Difference]: Start difference. First operand 3291 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:55:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:46,481 INFO L93 Difference]: Finished difference Result 5517 states and 8683 transitions. [2024-11-07 00:55:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:46,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2024-11-07 00:55:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:46,504 INFO L225 Difference]: With dead ends: 5517 [2024-11-07 00:55:46,505 INFO L226 Difference]: Without dead ends: 4358 [2024-11-07 00:55:46,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:46,512 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 115 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8319 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:46,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8319 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2024-11-07 00:55:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4358. [2024-11-07 00:55:46,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4358 states, 3919 states have (on average 1.6340903291656035) internal successors, (6404), 3951 states have internal predecessors, (6404), 253 states have call successors, (253), 160 states have call predecessors, (253), 184 states have return successors, (376), 262 states have call predecessors, (376), 253 states have call successors, (376) [2024-11-07 00:55:46,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 7033 transitions. [2024-11-07 00:55:46,715 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 7033 transitions. Word has length 93 [2024-11-07 00:55:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:46,717 INFO L471 AbstractCegarLoop]: Abstraction has 4358 states and 7033 transitions. [2024-11-07 00:55:46,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:55:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 7033 transitions. [2024-11-07 00:55:46,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 00:55:46,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:46,730 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:55:46,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 00:55:46,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:46,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:46,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:46,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1537753171, now seen corresponding path program 1 times [2024-11-07 00:55:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:46,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609702203] [2024-11-07 00:55:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:46,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:55:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 00:55:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 00:55:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,129 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-07 00:55:47,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609702203] [2024-11-07 00:55:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609702203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:47,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229978240] [2024-11-07 00:55:47,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:47,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:47,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:47,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:55:47,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 00:55:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:47,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:55:47,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 00:55:47,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:47,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229978240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:47,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:47,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-07 00:55:47,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304343236] [2024-11-07 00:55:47,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:47,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:47,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:47,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:47,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:47,346 INFO L87 Difference]: Start difference. First operand 4358 states and 7033 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-07 00:55:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:47,603 INFO L93 Difference]: Finished difference Result 8668 states and 12996 transitions. [2024-11-07 00:55:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:47,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 120 [2024-11-07 00:55:47,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:47,682 INFO L225 Difference]: With dead ends: 8668 [2024-11-07 00:55:47,683 INFO L226 Difference]: Without dead ends: 6445 [2024-11-07 00:55:47,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:47,706 INFO L432 NwaCegarLoop]: 4106 mSDtfsCounter, 4027 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 4228 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 00:55:47,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 4228 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:47,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2024-11-07 00:55:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 6387. [2024-11-07 00:55:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 5554 states have (on average 1.5482535109830753) internal successors, (8599), 5615 states have internal predecessors, (8599), 473 states have call successors, (473), 310 states have call predecessors, (473), 358 states have return successors, (688), 477 states have call predecessors, (688), 473 states have call successors, (688) [2024-11-07 00:55:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 9760 transitions. [2024-11-07 00:55:48,163 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 9760 transitions. Word has length 120 [2024-11-07 00:55:48,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:48,164 INFO L471 AbstractCegarLoop]: Abstraction has 6387 states and 9760 transitions. [2024-11-07 00:55:48,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-07 00:55:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 9760 transitions. [2024-11-07 00:55:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 00:55:48,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:48,177 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-07 00:55:48,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 00:55:48,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:48,378 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:48,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash -782048242, now seen corresponding path program 1 times [2024-11-07 00:55:48,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:48,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102780183] [2024-11-07 00:55:48,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:48,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 00:55:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 00:55:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 00:55:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 00:55:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-07 00:55:48,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:48,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102780183] [2024-11-07 00:55:48,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102780183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:48,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156806351] [2024-11-07 00:55:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:48,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:48,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:48,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:55:48,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 00:55:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:48,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:55:48,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-07 00:55:48,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:48,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156806351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:48,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:48,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:55:48,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552248451] [2024-11-07 00:55:48,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:48,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:48,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:48,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:48,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:48,690 INFO L87 Difference]: Start difference. First operand 6387 states and 9760 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:55:48,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:48,937 INFO L93 Difference]: Finished difference Result 9685 states and 14265 transitions. [2024-11-07 00:55:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:48,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 137 [2024-11-07 00:55:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:48,975 INFO L225 Difference]: With dead ends: 9685 [2024-11-07 00:55:48,976 INFO L226 Difference]: Without dead ends: 6715 [2024-11-07 00:55:48,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:48,987 INFO L432 NwaCegarLoop]: 4125 mSDtfsCounter, 4059 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:48,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 4255 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2024-11-07 00:55:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6677. [2024-11-07 00:55:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 5812 states have (on average 1.5232278045423262) internal successors, (8853), 5873 states have internal predecessors, (8853), 479 states have call successors, (479), 336 states have call predecessors, (479), 384 states have return successors, (720), 483 states have call predecessors, (720), 479 states have call successors, (720) [2024-11-07 00:55:49,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 10052 transitions. [2024-11-07 00:55:49,327 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 10052 transitions. Word has length 137 [2024-11-07 00:55:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:49,327 INFO L471 AbstractCegarLoop]: Abstraction has 6677 states and 10052 transitions. [2024-11-07 00:55:49,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:55:49,327 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 10052 transitions. [2024-11-07 00:55:49,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-07 00:55:49,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:49,339 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:49,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 00:55:49,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:49,539 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:49,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:49,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1599308267, now seen corresponding path program 1 times [2024-11-07 00:55:49,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:49,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161128977] [2024-11-07 00:55:49,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:49,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:55:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 00:55:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 00:55:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 00:55:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-07 00:55:49,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:49,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161128977] [2024-11-07 00:55:49,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161128977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:49,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854750168] [2024-11-07 00:55:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:49,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:49,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:49,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:55:49,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 00:55:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:49,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:55:49,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:49,791 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-07 00:55:49,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:49,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854750168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:49,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:49,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:55:49,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798941726] [2024-11-07 00:55:49,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:49,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:49,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:49,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:49,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:49,793 INFO L87 Difference]: Start difference. First operand 6677 states and 10052 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:55:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:50,438 INFO L93 Difference]: Finished difference Result 15401 states and 21894 transitions. [2024-11-07 00:55:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:50,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2024-11-07 00:55:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:50,515 INFO L225 Difference]: With dead ends: 15401 [2024-11-07 00:55:50,515 INFO L226 Difference]: Without dead ends: 10861 [2024-11-07 00:55:50,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:50,534 INFO L432 NwaCegarLoop]: 4217 mSDtfsCounter, 115 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8314 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:50,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8314 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:50,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-07 00:55:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10847. [2024-11-07 00:55:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10847 states, 9168 states have (on average 1.43815445026178) internal successors, (13185), 9289 states have internal predecessors, (13185), 925 states have call successors, (925), 656 states have call predecessors, (925), 752 states have return successors, (1550), 933 states have call predecessors, (1550), 925 states have call successors, (1550) [2024-11-07 00:55:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10847 states to 10847 states and 15660 transitions. [2024-11-07 00:55:51,163 INFO L78 Accepts]: Start accepts. Automaton has 10847 states and 15660 transitions. Word has length 138 [2024-11-07 00:55:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:51,164 INFO L471 AbstractCegarLoop]: Abstraction has 10847 states and 15660 transitions. [2024-11-07 00:55:51,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:55:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 10847 states and 15660 transitions. [2024-11-07 00:55:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 00:55:51,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:51,184 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-07 00:55:51,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-07 00:55:51,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 00:55:51,385 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:51,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:51,386 INFO L85 PathProgramCache]: Analyzing trace with hash 657886781, now seen corresponding path program 1 times [2024-11-07 00:55:51,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:51,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943781065] [2024-11-07 00:55:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:51,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:55:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:55:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:55:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 00:55:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,540 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:55:51,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:51,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943781065] [2024-11-07 00:55:51,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943781065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:51,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558868110] [2024-11-07 00:55:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:51,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:51,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:51,543 INFO L229 MonitoredProcess]: Starting monitored process 6 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 00:55:51,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 00:55:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:51,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:55:51,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 00:55:51,694 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:51,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558868110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:51,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:51,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:55:51,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089885796] [2024-11-07 00:55:51,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:51,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:51,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:51,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:51,697 INFO L87 Difference]: Start difference. First operand 10847 states and 15660 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:55:52,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:52,103 INFO L93 Difference]: Finished difference Result 15375 states and 22056 transitions. [2024-11-07 00:55:52,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:52,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-07 00:55:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:52,151 INFO L225 Difference]: With dead ends: 15375 [2024-11-07 00:55:52,152 INFO L226 Difference]: Without dead ends: 10881 [2024-11-07 00:55:52,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:52,169 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 100 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 8273 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:52,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 8273 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:52,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10881 states. [2024-11-07 00:55:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10881 to 10823. [2024-11-07 00:55:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10823 states, 9144 states have (on average 1.4248687664041995) internal successors, (13029), 9265 states have internal predecessors, (13029), 925 states have call successors, (925), 656 states have call predecessors, (925), 752 states have return successors, (1550), 933 states have call predecessors, (1550), 925 states have call successors, (1550) [2024-11-07 00:55:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10823 states to 10823 states and 15504 transitions. [2024-11-07 00:55:53,021 INFO L78 Accepts]: Start accepts. Automaton has 10823 states and 15504 transitions. Word has length 139 [2024-11-07 00:55:53,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:53,022 INFO L471 AbstractCegarLoop]: Abstraction has 10823 states and 15504 transitions. [2024-11-07 00:55:53,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:55:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 10823 states and 15504 transitions. [2024-11-07 00:55:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 00:55:53,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:53,040 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:53,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 00:55:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 00:55:53,245 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:53,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:53,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1557277189, now seen corresponding path program 1 times [2024-11-07 00:55:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:53,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252211766] [2024-11-07 00:55:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:53,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:55:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:55:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:55:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 00:55:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:55:53,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252211766] [2024-11-07 00:55:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252211766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:53,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020523750] [2024-11-07 00:55:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:53,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:53,380 INFO L229 MonitoredProcess]: Starting monitored process 7 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 00:55:53,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 00:55:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:53,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:55:53,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 00:55:53,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:53,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020523750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:53,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:53,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:55:53,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829091009] [2024-11-07 00:55:53,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:53,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:53,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:53,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:53,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:53,529 INFO L87 Difference]: Start difference. First operand 10823 states and 15504 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 00:55:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:53,977 INFO L93 Difference]: Finished difference Result 17233 states and 24276 transitions. [2024-11-07 00:55:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:53,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 139 [2024-11-07 00:55:53,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:54,019 INFO L225 Difference]: With dead ends: 17233 [2024-11-07 00:55:54,020 INFO L226 Difference]: Without dead ends: 9603 [2024-11-07 00:55:54,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:54,042 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4078 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:54,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2024-11-07 00:55:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 9155. [2024-11-07 00:55:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9155 states, 7802 states have (on average 1.4097667264803897) internal successors, (10999), 7891 states have internal predecessors, (10999), 753 states have call successors, (753), 534 states have call predecessors, (753), 598 states have return successors, (1098), 745 states have call predecessors, (1098), 753 states have call successors, (1098) [2024-11-07 00:55:54,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9155 states to 9155 states and 12850 transitions. [2024-11-07 00:55:54,556 INFO L78 Accepts]: Start accepts. Automaton has 9155 states and 12850 transitions. Word has length 139 [2024-11-07 00:55:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:54,557 INFO L471 AbstractCegarLoop]: Abstraction has 9155 states and 12850 transitions. [2024-11-07 00:55:54,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 00:55:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9155 states and 12850 transitions. [2024-11-07 00:55:54,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:55:54,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:54,571 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:54,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 00:55:54,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 00:55:54,775 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:54,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash -594645104, now seen corresponding path program 1 times [2024-11-07 00:55:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:54,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795211256] [2024-11-07 00:55:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:55:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:55:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:55:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 00:55:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:55:54,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:54,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795211256] [2024-11-07 00:55:54,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795211256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:54,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573409254] [2024-11-07 00:55:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:54,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:54,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:54,922 INFO L229 MonitoredProcess]: Starting monitored process 8 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 00:55:54,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 00:55:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:55,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 00:55:55,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-07 00:55:55,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:55,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573409254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:55,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:55,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-07 00:55:55,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298486824] [2024-11-07 00:55:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:55,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:55:55,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:55:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:55:55,155 INFO L87 Difference]: Start difference. First operand 9155 states and 12850 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:55:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:55,675 INFO L93 Difference]: Finished difference Result 11893 states and 16439 transitions. [2024-11-07 00:55:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:55:55,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-07 00:55:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:55,714 INFO L225 Difference]: With dead ends: 11893 [2024-11-07 00:55:55,715 INFO L226 Difference]: Without dead ends: 7339 [2024-11-07 00:55:55,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:55:55,732 INFO L432 NwaCegarLoop]: 4049 mSDtfsCounter, 4096 mSDsluCounter, 8057 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 12106 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:55,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 12106 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:55:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7339 states. [2024-11-07 00:55:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7339 to 7315. [2024-11-07 00:55:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 6320 states have (on average 1.428006329113924) internal successors, (9025), 6373 states have internal predecessors, (9025), 565 states have call successors, (565), 396 states have call predecessors, (565), 428 states have return successors, (766), 553 states have call predecessors, (766), 565 states have call successors, (766) [2024-11-07 00:55:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 10356 transitions. [2024-11-07 00:55:56,226 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 10356 transitions. Word has length 140 [2024-11-07 00:55:56,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:56,227 INFO L471 AbstractCegarLoop]: Abstraction has 7315 states and 10356 transitions. [2024-11-07 00:55:56,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:55:56,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 10356 transitions. [2024-11-07 00:55:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:55:56,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:56,233 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:56,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 00:55:56,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:56,434 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:56,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash -476203630, now seen corresponding path program 1 times [2024-11-07 00:55:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896609833] [2024-11-07 00:55:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:55:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:55:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:55:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 00:55:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:55:56,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:56,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896609833] [2024-11-07 00:55:56,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896609833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:56,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804463416] [2024-11-07 00:55:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:56,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:56,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:56,565 INFO L229 MonitoredProcess]: Starting monitored process 9 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 00:55:56,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 00:55:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:56,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 00:55:56,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-07 00:55:56,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:56,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804463416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:56,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:56,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-07 00:55:56,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509546892] [2024-11-07 00:55:56,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:56,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:55:56,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:56,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:55:56,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:55:56,747 INFO L87 Difference]: Start difference. First operand 7315 states and 10356 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:55:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:57,201 INFO L93 Difference]: Finished difference Result 11545 states and 15786 transitions. [2024-11-07 00:55:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:55:57,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-07 00:55:57,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:57,233 INFO L225 Difference]: With dead ends: 11545 [2024-11-07 00:55:57,233 INFO L226 Difference]: Without dead ends: 6953 [2024-11-07 00:55:57,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:55:57,248 INFO L432 NwaCegarLoop]: 4047 mSDtfsCounter, 4134 mSDsluCounter, 8052 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4143 SdHoareTripleChecker+Valid, 12099 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:57,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4143 Valid, 12099 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:55:57,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2024-11-07 00:55:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 5221. [2024-11-07 00:55:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 4646 states have (on average 1.4829961256995265) internal successors, (6890), 4675 states have internal predecessors, (6890), 329 states have call successors, (329), 228 states have call predecessors, (329), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2024-11-07 00:55:57,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 7658 transitions. [2024-11-07 00:55:57,464 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 7658 transitions. Word has length 140 [2024-11-07 00:55:57,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:57,464 INFO L471 AbstractCegarLoop]: Abstraction has 5221 states and 7658 transitions. [2024-11-07 00:55:57,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:55:57,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 7658 transitions. [2024-11-07 00:55:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:55:57,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:57,469 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:57,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 00:55:57,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:57,670 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:57,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:57,671 INFO L85 PathProgramCache]: Analyzing trace with hash 913090384, now seen corresponding path program 1 times [2024-11-07 00:55:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:57,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392177915] [2024-11-07 00:55:57,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:57,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:55:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:55:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:55:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 00:55:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:55:57,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:57,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392177915] [2024-11-07 00:55:57,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392177915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:57,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421669595] [2024-11-07 00:55:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:57,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:57,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:57,832 INFO L229 MonitoredProcess]: Starting monitored process 10 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 00:55:57,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 00:55:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:57,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 00:55:57,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 00:55:58,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 00:55:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:55:58,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421669595] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:58,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 00:55:58,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 9 [2024-11-07 00:55:58,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120683808] [2024-11-07 00:55:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:58,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:55:58,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:55:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:55:58,127 INFO L87 Difference]: Start difference. First operand 5221 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:55:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:58,577 INFO L93 Difference]: Finished difference Result 9241 states and 12438 transitions. [2024-11-07 00:55:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:55:58,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 140 [2024-11-07 00:55:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:58,614 INFO L225 Difference]: With dead ends: 9241 [2024-11-07 00:55:58,614 INFO L226 Difference]: Without dead ends: 7787 [2024-11-07 00:55:58,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:55:58,623 INFO L432 NwaCegarLoop]: 4196 mSDtfsCounter, 4173 mSDsluCounter, 4150 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4173 SdHoareTripleChecker+Valid, 8346 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:58,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4173 Valid, 8346 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:55:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2024-11-07 00:55:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 6486. [2024-11-07 00:55:58,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 5687 states have (on average 1.4241251978195886) internal successors, (8099), 5724 states have internal predecessors, (8099), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-07 00:55:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9165 transitions. [2024-11-07 00:55:58,961 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9165 transitions. Word has length 140 [2024-11-07 00:55:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:55:58,961 INFO L471 AbstractCegarLoop]: Abstraction has 6486 states and 9165 transitions. [2024-11-07 00:55:58,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:55:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9165 transitions. [2024-11-07 00:55:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 00:55:58,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:55:58,968 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:55:58,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 00:55:59,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:59,170 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:55:59,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:55:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1037241455, now seen corresponding path program 1 times [2024-11-07 00:55:59,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:55:59,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489843604] [2024-11-07 00:55:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:59,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:55:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:55:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:55:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:55:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:55:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:55:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:55:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:55:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 00:55:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-07 00:55:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 00:55:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 00:55:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 00:55:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 00:55:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 00:55:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 00:55:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,288 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:55:59,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:55:59,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489843604] [2024-11-07 00:55:59,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489843604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:55:59,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419714164] [2024-11-07 00:55:59,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:55:59,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:55:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:55:59,291 INFO L229 MonitoredProcess]: Starting monitored process 11 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 00:55:59,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 00:55:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:55:59,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:55:59,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:55:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-07 00:55:59,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:55:59,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419714164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:55:59,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:55:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:55:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396257914] [2024-11-07 00:55:59,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:55:59,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:55:59,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:55:59,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:55:59,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:59,458 INFO L87 Difference]: Start difference. First operand 6486 states and 9165 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:55:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:55:59,766 INFO L93 Difference]: Finished difference Result 10163 states and 13570 transitions. [2024-11-07 00:55:59,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:55:59,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 159 [2024-11-07 00:55:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:55:59,800 INFO L225 Difference]: With dead ends: 10163 [2024-11-07 00:55:59,800 INFO L226 Difference]: Without dead ends: 6573 [2024-11-07 00:55:59,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:55:59,815 INFO L432 NwaCegarLoop]: 4112 mSDtfsCounter, 4073 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4231 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:55:59,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 4231 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:55:59,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6573 states. [2024-11-07 00:56:00,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6573 to 6486. [2024-11-07 00:56:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 5687 states have (on average 1.4172674520836996) internal successors, (8060), 5724 states have internal predecessors, (8060), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-07 00:56:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9126 transitions. [2024-11-07 00:56:00,134 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9126 transitions. Word has length 159 [2024-11-07 00:56:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:00,135 INFO L471 AbstractCegarLoop]: Abstraction has 6486 states and 9126 transitions. [2024-11-07 00:56:00,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:56:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9126 transitions. [2024-11-07 00:56:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 00:56:00,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:00,143 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:56:00,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 00:56:00,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 00:56:00,348 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:00,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1070150895, now seen corresponding path program 1 times [2024-11-07 00:56:00,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:00,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108287884] [2024-11-07 00:56:00,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:00,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:56:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:56:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:56:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:56:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:56:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:56:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:56:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 00:56:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-07 00:56:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 00:56:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 00:56:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 00:56:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 00:56:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 00:56:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 00:56:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-07 00:56:00,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:00,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108287884] [2024-11-07 00:56:00,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108287884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:00,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:56:00,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:56:00,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538851705] [2024-11-07 00:56:00,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:00,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:56:00,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:00,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:56:00,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:56:00,430 INFO L87 Difference]: Start difference. First operand 6486 states and 9126 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-07 00:56:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:01,082 INFO L93 Difference]: Finished difference Result 10606 states and 13952 transitions. [2024-11-07 00:56:01,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:56:01,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 159 [2024-11-07 00:56:01,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:01,113 INFO L225 Difference]: With dead ends: 10606 [2024-11-07 00:56:01,114 INFO L226 Difference]: Without dead ends: 6255 [2024-11-07 00:56:01,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:56:01,125 INFO L432 NwaCegarLoop]: 4054 mSDtfsCounter, 211 mSDsluCounter, 11978 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 16032 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:01,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 16032 Invalid, 179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:56:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2024-11-07 00:56:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6037. [2024-11-07 00:56:01,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6037 states, 5339 states have (on average 1.435100206031092) internal successors, (7662), 5407 states have internal predecessors, (7662), 369 states have call successors, (369), 258 states have call predecessors, (369), 327 states have return successors, (541), 373 states have call predecessors, (541), 369 states have call successors, (541) [2024-11-07 00:56:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6037 states to 6037 states and 8572 transitions. [2024-11-07 00:56:01,619 INFO L78 Accepts]: Start accepts. Automaton has 6037 states and 8572 transitions. Word has length 159 [2024-11-07 00:56:01,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:01,619 INFO L471 AbstractCegarLoop]: Abstraction has 6037 states and 8572 transitions. [2024-11-07 00:56:01,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-07 00:56:01,620 INFO L276 IsEmpty]: Start isEmpty. Operand 6037 states and 8572 transitions. [2024-11-07 00:56:01,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-07 00:56:01,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:01,626 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:56:01,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:56:01,627 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:01,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1674988684, now seen corresponding path program 1 times [2024-11-07 00:56:01,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:01,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193287925] [2024-11-07 00:56:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:01,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:56:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:56:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:56:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:56:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:56:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:56:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:56:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 00:56:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 00:56:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:56:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 00:56:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-07 00:56:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 00:56:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 00:56:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 00:56:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,759 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:56:01,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:01,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193287925] [2024-11-07 00:56:01,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193287925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:56:01,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120933268] [2024-11-07 00:56:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:01,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:56:01,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:56:01,763 INFO L229 MonitoredProcess]: Starting monitored process 12 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 00:56:01,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 00:56:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:01,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:56:01,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:56:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-07 00:56:01,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:56:01,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120933268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:01,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:56:01,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:56:01,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781924241] [2024-11-07 00:56:01,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:01,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:56:01,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:01,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:56:01,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:56:01,937 INFO L87 Difference]: Start difference. First operand 6037 states and 8572 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-07 00:56:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:02,229 INFO L93 Difference]: Finished difference Result 8596 states and 11770 transitions. [2024-11-07 00:56:02,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:56:02,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 161 [2024-11-07 00:56:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:02,254 INFO L225 Difference]: With dead ends: 8596 [2024-11-07 00:56:02,254 INFO L226 Difference]: Without dead ends: 5999 [2024-11-07 00:56:02,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:56:02,262 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 87 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:02,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 8272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:56:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-11-07 00:56:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5985. [2024-11-07 00:56:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5295 states have (on average 1.4273843248347498) internal successors, (7558), 5361 states have internal predecessors, (7558), 365 states have call successors, (365), 254 states have call predecessors, (365), 323 states have return successors, (537), 371 states have call predecessors, (537), 365 states have call successors, (537) [2024-11-07 00:56:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 8460 transitions. [2024-11-07 00:56:02,561 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 8460 transitions. Word has length 161 [2024-11-07 00:56:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:02,562 INFO L471 AbstractCegarLoop]: Abstraction has 5985 states and 8460 transitions. [2024-11-07 00:56:02,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-07 00:56:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 8460 transitions. [2024-11-07 00:56:02,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 00:56:02,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:02,567 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-07 00:56:02,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-07 00:56:02,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 00:56:02,768 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:02,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1011605991, now seen corresponding path program 1 times [2024-11-07 00:56:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:02,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379077357] [2024-11-07 00:56:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:56:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:56:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:56:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:56:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:56:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:56:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:56:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 00:56:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 00:56:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:56:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 00:56:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 00:56:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 00:56:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 00:56:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 00:56:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:56:02,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:02,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379077357] [2024-11-07 00:56:02,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379077357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:56:02,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692993445] [2024-11-07 00:56:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:02,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:56:02,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:56:02,927 INFO L229 MonitoredProcess]: Starting monitored process 13 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 00:56:02,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 00:56:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 00:56:03,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:56:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-07 00:56:03,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:56:03,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692993445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:03,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:56:03,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-07 00:56:03,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275004402] [2024-11-07 00:56:03,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:03,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:56:03,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:03,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:56:03,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:56:03,093 INFO L87 Difference]: Start difference. First operand 5985 states and 8460 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 00:56:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:03,330 INFO L93 Difference]: Finished difference Result 8650 states and 11543 transitions. [2024-11-07 00:56:03,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:56:03,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 162 [2024-11-07 00:56:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:03,356 INFO L225 Difference]: With dead ends: 8650 [2024-11-07 00:56:03,356 INFO L226 Difference]: Without dead ends: 4802 [2024-11-07 00:56:03,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:56:03,365 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 16351 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20441 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:03,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20441 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:56:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2024-11-07 00:56:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 4768. [2024-11-07 00:56:03,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4338 states have (on average 1.487782388197326) internal successors, (6454), 4370 states have internal predecessors, (6454), 217 states have call successors, (217), 151 states have call predecessors, (217), 211 states have return successors, (330), 246 states have call predecessors, (330), 217 states have call successors, (330) [2024-11-07 00:56:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 7001 transitions. [2024-11-07 00:56:03,577 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 7001 transitions. Word has length 162 [2024-11-07 00:56:03,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:03,577 INFO L471 AbstractCegarLoop]: Abstraction has 4768 states and 7001 transitions. [2024-11-07 00:56:03,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 00:56:03,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 7001 transitions. [2024-11-07 00:56:03,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-07 00:56:03,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:03,582 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:56:03,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 00:56:03,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 00:56:03,786 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:03,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1707965800, now seen corresponding path program 1 times [2024-11-07 00:56:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:03,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309390461] [2024-11-07 00:56:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:56:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:56:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:56:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:56:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:56:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:56:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:56:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 00:56:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:56:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 00:56:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 00:56:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 00:56:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 00:56:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 00:56:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 00:56:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:56:03,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:03,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309390461] [2024-11-07 00:56:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309390461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:56:03,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262633535] [2024-11-07 00:56:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:03,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:56:03,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:56:03,907 INFO L229 MonitoredProcess]: Starting monitored process 14 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 00:56:03,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 00:56:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 00:56:04,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:56:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-07 00:56:04,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:56:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262633535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:04,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:56:04,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-07 00:56:04,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581920133] [2024-11-07 00:56:04,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:04,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:56:04,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:04,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:56:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:56:04,053 INFO L87 Difference]: Start difference. First operand 4768 states and 7001 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:56:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:04,150 INFO L93 Difference]: Finished difference Result 5849 states and 8259 transitions. [2024-11-07 00:56:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:56:04,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-07 00:56:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:04,164 INFO L225 Difference]: With dead ends: 5849 [2024-11-07 00:56:04,164 INFO L226 Difference]: Without dead ends: 3262 [2024-11-07 00:56:04,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:56:04,169 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16354 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:04,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:56:04,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-07 00:56:04,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262. [2024-11-07 00:56:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3071 states have (on average 1.6265060240963856) internal successors, (4995), 3083 states have internal predecessors, (4995), 95 states have call successors, (95), 70 states have call predecessors, (95), 94 states have return successors, (126), 108 states have call predecessors, (126), 95 states have call successors, (126) [2024-11-07 00:56:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 5216 transitions. [2024-11-07 00:56:04,285 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 5216 transitions. Word has length 167 [2024-11-07 00:56:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:04,286 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 5216 transitions. [2024-11-07 00:56:04,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:56:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 5216 transitions. [2024-11-07 00:56:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-07 00:56:04,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:04,289 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:56:04,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 00:56:04,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:56:04,491 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:04,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash -481877974, now seen corresponding path program 1 times [2024-11-07 00:56:04,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219477573] [2024-11-07 00:56:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:04,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:56:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:56:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:56:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:56:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:56:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:56:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:56:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 00:56:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:56:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 00:56:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 00:56:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 00:56:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 00:56:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 00:56:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 00:56:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,605 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:56:04,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:04,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219477573] [2024-11-07 00:56:04,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219477573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:56:04,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743992195] [2024-11-07 00:56:04,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:04,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:56:04,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:56:04,608 INFO L229 MonitoredProcess]: Starting monitored process 15 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 00:56:04,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 00:56:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:04,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 00:56:04,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:56:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-07 00:56:04,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:56:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743992195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:04,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:56:04,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2024-11-07 00:56:04,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35526580] [2024-11-07 00:56:04,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:04,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:56:04,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:56:04,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:56:04,732 INFO L87 Difference]: Start difference. First operand 3262 states and 5216 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:56:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:04,840 INFO L93 Difference]: Finished difference Result 3764 states and 5786 transitions. [2024-11-07 00:56:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:56:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-07 00:56:04,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:04,853 INFO L225 Difference]: With dead ends: 3764 [2024-11-07 00:56:04,854 INFO L226 Difference]: Without dead ends: 2123 [2024-11-07 00:56:04,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:56:04,857 INFO L432 NwaCegarLoop]: 4088 mSDtfsCounter, 0 mSDsluCounter, 12258 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16346 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:04,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16346 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:56:04,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2024-11-07 00:56:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2024-11-07 00:56:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.8656927426955703) internal successors, (3959), 2122 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3959 transitions. [2024-11-07 00:56:04,890 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3959 transitions. Word has length 167 [2024-11-07 00:56:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:04,890 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 3959 transitions. [2024-11-07 00:56:04,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:56:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3959 transitions. [2024-11-07 00:56:04,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2024-11-07 00:56:04,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:04,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:04,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 00:56:05,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:56:05,156 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:05,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash -889868883, now seen corresponding path program 1 times [2024-11-07 00:56:05,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:05,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793393657] [2024-11-07 00:56:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:05,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:06,858 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 00:56:06,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:06,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793393657] [2024-11-07 00:56:06,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793393657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:06,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:56:06,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:56:06,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081164918] [2024-11-07 00:56:06,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:06,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:56:06,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:56:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:06,864 INFO L87 Difference]: Start difference. First operand 2123 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 548.6666666666666) internal successors, (1646), 2 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:12,247 INFO L93 Difference]: Finished difference Result 6058 states and 11375 transitions. [2024-11-07 00:56:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:56:12,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 548.6666666666666) internal successors, (1646), 2 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1646 [2024-11-07 00:56:12,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:12,262 INFO L225 Difference]: With dead ends: 6058 [2024-11-07 00:56:12,263 INFO L226 Difference]: Without dead ends: 3938 [2024-11-07 00:56:12,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:12,265 INFO L432 NwaCegarLoop]: 1258 mSDtfsCounter, 621 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 4951 mSolverCounterSat, 2591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 7542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2591 IncrementalHoareTripleChecker+Valid, 4951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:12,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1412 Invalid, 7542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2591 Valid, 4951 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-07 00:56:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2024-11-07 00:56:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3922. [2024-11-07 00:56:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3921 states have (on average 1.7309359857179292) internal successors, (6787), 3921 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:12,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 6787 transitions. [2024-11-07 00:56:12,314 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 6787 transitions. Word has length 1646 [2024-11-07 00:56:12,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:12,317 INFO L471 AbstractCegarLoop]: Abstraction has 3922 states and 6787 transitions. [2024-11-07 00:56:12,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.6666666666666) internal successors, (1646), 2 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:12,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 6787 transitions. [2024-11-07 00:56:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1658 [2024-11-07 00:56:12,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:12,373 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:12,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:56:12,374 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:12,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:12,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1312568886, now seen corresponding path program 1 times [2024-11-07 00:56:12,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:12,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509872713] [2024-11-07 00:56:12,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:12,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:56:13,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:13,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509872713] [2024-11-07 00:56:13,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509872713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:13,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:56:13,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:56:13,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102026366] [2024-11-07 00:56:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:13,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:56:13,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:13,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:56:13,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:13,213 INFO L87 Difference]: Start difference. First operand 3922 states and 6787 transitions. Second operand has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 2 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:18,157 INFO L93 Difference]: Finished difference Result 11273 states and 19664 transitions. [2024-11-07 00:56:18,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:56:18,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 2 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1657 [2024-11-07 00:56:18,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:18,172 INFO L225 Difference]: With dead ends: 11273 [2024-11-07 00:56:18,172 INFO L226 Difference]: Without dead ends: 7354 [2024-11-07 00:56:18,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:18,177 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 2704 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4474 mSolverCounterSat, 2374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 6848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2374 IncrementalHoareTripleChecker+Valid, 4474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:18,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 1696 Invalid, 6848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2374 Valid, 4474 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-07 00:56:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2024-11-07 00:56:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 7352. [2024-11-07 00:56:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 7351 states have (on average 1.5521697728200246) internal successors, (11410), 7351 states have internal predecessors, (11410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 11410 transitions. [2024-11-07 00:56:18,261 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 11410 transitions. Word has length 1657 [2024-11-07 00:56:18,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:18,261 INFO L471 AbstractCegarLoop]: Abstraction has 7352 states and 11410 transitions. [2024-11-07 00:56:18,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 2 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:18,262 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 11410 transitions. [2024-11-07 00:56:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1676 [2024-11-07 00:56:18,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:18,286 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:18,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:56:18,287 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:18,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:18,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1123878268, now seen corresponding path program 1 times [2024-11-07 00:56:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:18,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28598967] [2024-11-07 00:56:18,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:18,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:56:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28598967] [2024-11-07 00:56:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28598967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:56:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:56:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054473001] [2024-11-07 00:56:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:19,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:56:19,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:19,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:56:19,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:19,271 INFO L87 Difference]: Start difference. First operand 7352 states and 11410 transitions. Second operand has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:24,308 INFO L93 Difference]: Finished difference Result 21535 states and 33517 transitions. [2024-11-07 00:56:24,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:56:24,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1675 [2024-11-07 00:56:24,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:24,334 INFO L225 Difference]: With dead ends: 21535 [2024-11-07 00:56:24,334 INFO L226 Difference]: Without dead ends: 14186 [2024-11-07 00:56:24,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:24,342 INFO L432 NwaCegarLoop]: 3609 mSDtfsCounter, 2170 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 4761 mSolverCounterSat, 2214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 6975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2214 IncrementalHoareTripleChecker+Valid, 4761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:24,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 3855 Invalid, 6975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2214 Valid, 4761 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-07 00:56:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14186 states. [2024-11-07 00:56:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14186 to 14181. [2024-11-07 00:56:24,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14181 states, 14180 states have (on average 1.3787729196050775) internal successors, (19551), 14180 states have internal predecessors, (19551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14181 states to 14181 states and 19551 transitions. [2024-11-07 00:56:24,488 INFO L78 Accepts]: Start accepts. Automaton has 14181 states and 19551 transitions. Word has length 1675 [2024-11-07 00:56:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:24,489 INFO L471 AbstractCegarLoop]: Abstraction has 14181 states and 19551 transitions. [2024-11-07 00:56:24,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 14181 states and 19551 transitions. [2024-11-07 00:56:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2024-11-07 00:56:24,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:24,512 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:24,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:56:24,513 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:24,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:24,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2103269905, now seen corresponding path program 1 times [2024-11-07 00:56:24,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:24,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074649335] [2024-11-07 00:56:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:24,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:56:25,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:25,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074649335] [2024-11-07 00:56:25,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074649335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:25,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:56:25,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:56:25,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544267911] [2024-11-07 00:56:25,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:25,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:56:25,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:25,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:56:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:25,138 INFO L87 Difference]: Start difference. First operand 14181 states and 19551 transitions. Second operand has 3 states, 3 states have (on average 564.0) internal successors, (1692), 2 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:30,269 INFO L93 Difference]: Finished difference Result 41939 states and 57854 transitions. [2024-11-07 00:56:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:56:30,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 564.0) internal successors, (1692), 2 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1692 [2024-11-07 00:56:30,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:30,313 INFO L225 Difference]: With dead ends: 41939 [2024-11-07 00:56:30,313 INFO L226 Difference]: Without dead ends: 27761 [2024-11-07 00:56:30,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:30,331 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 3145 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 2129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 6902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2129 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:30,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 1168 Invalid, 6902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2129 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-07 00:56:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27761 states. [2024-11-07 00:56:30,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27761 to 27761. [2024-11-07 00:56:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27761 states, 27760 states have (on average 1.325756484149856) internal successors, (36803), 27760 states have internal predecessors, (36803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27761 states to 27761 states and 36803 transitions. [2024-11-07 00:56:30,588 INFO L78 Accepts]: Start accepts. Automaton has 27761 states and 36803 transitions. Word has length 1692 [2024-11-07 00:56:30,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:56:30,588 INFO L471 AbstractCegarLoop]: Abstraction has 27761 states and 36803 transitions. [2024-11-07 00:56:30,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.0) internal successors, (1692), 2 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:30,589 INFO L276 IsEmpty]: Start isEmpty. Operand 27761 states and 36803 transitions. [2024-11-07 00:56:30,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1752 [2024-11-07 00:56:30,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:56:30,623 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:30,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 00:56:30,624 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:56:30,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:56:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 910450863, now seen corresponding path program 1 times [2024-11-07 00:56:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:56:30,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491640641] [2024-11-07 00:56:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:56:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:56:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:56:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:56:31,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:56:31,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491640641] [2024-11-07 00:56:31,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491640641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:56:31,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:56:31,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:56:31,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884193874] [2024-11-07 00:56:31,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:56:31,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:56:31,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:56:31,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:56:31,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:31,557 INFO L87 Difference]: Start difference. First operand 27761 states and 36803 transitions. Second operand has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 2 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:56:36,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:56:36,664 INFO L93 Difference]: Finished difference Result 69127 states and 90662 transitions. [2024-11-07 00:56:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:56:36,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 2 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1751 [2024-11-07 00:56:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:56:36,725 INFO L225 Difference]: With dead ends: 69127 [2024-11-07 00:56:36,725 INFO L226 Difference]: Without dead ends: 41369 [2024-11-07 00:56:36,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:56:36,754 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 1962 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 5812 mSolverCounterSat, 1286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 7098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1286 IncrementalHoareTripleChecker+Valid, 5812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:56:36,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 1687 Invalid, 7098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1286 Valid, 5812 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-07 00:56:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41369 states.