./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.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/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.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', 'c4ba866c3a79d104a7473fc3c035156e2c10c247b66ad04eaab0b68446430314'] 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/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.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 c4ba866c3a79d104a7473fc3c035156e2c10c247b66ad04eaab0b68446430314 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:31:06,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:31:06,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:31:06,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:31:06,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:31:06,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:31:06,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:31:06,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:31:06,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:31:06,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:31:06,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:31:06,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:31:06,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:31:06,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:31:06,573 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:31:06,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:31:06,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:31:06,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:31:06,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:31:06,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:31:06,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:31:06,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:31:06,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:31:06,577 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 -> c4ba866c3a79d104a7473fc3c035156e2c10c247b66ad04eaab0b68446430314 [2024-11-07 01:31:06,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:31:06,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:31:06,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:31:06,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:31:06,877 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:31:06,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c [2024-11-07 01:31:08,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:31:08,576 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:31:08,577 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c [2024-11-07 01:31:08,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8a3bdaa13/7b979177fb2c4a44ba310696982c1600/FLAG0a0d213f6 [2024-11-07 01:31:08,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8a3bdaa13/7b979177fb2c4a44ba310696982c1600 [2024-11-07 01:31:08,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:31:08,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:31:08,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:31:08,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:31:08,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:31:08,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:08" (1/1) ... [2024-11-07 01:31:08,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e1ae68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:08, skipping insertion in model container [2024-11-07 01:31:08,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:08" (1/1) ... [2024-11-07 01:31:08,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:31:09,027 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/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c[11640,11653] [2024-11-07 01:31:09,057 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/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c[13515,13528] [2024-11-07 01:31:09,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:31:09,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:31:09,629 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/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c[11640,11653] [2024-11-07 01:31:09,637 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/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c[13515,13528] [2024-11-07 01:31:09,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:31:09,977 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:31:09,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09 WrapperNode [2024-11-07 01:31:09,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:31:09,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:31:09,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:31:09,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:31:09,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,420 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5099 [2024-11-07 01:31:10,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:31:10,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:31:10,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:31:10,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:31:10,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,778 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 01:31:10,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:10,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:11,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:11,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:31:11,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:31:11,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:31:11,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:31:11,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (1/1) ... [2024-11-07 01:31:11,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:31:11,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:11,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 01:31:11,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 01:31:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:31:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:31:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:31:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:31:11,237 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:31:11,239 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:31:15,528 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-07 01:31:15,529 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:31:15,562 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:31:15,563 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 01:31:15,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:15 BoogieIcfgContainer [2024-11-07 01:31:15,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:31:15,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:31:15,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:31:15,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:31:15,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:31:08" (1/3) ... [2024-11-07 01:31:15,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32429df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:15, skipping insertion in model container [2024-11-07 01:31:15,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:09" (2/3) ... [2024-11-07 01:31:15,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32429df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:15, skipping insertion in model container [2024-11-07 01:31:15,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:15" (3/3) ... [2024-11-07 01:31:15,573 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label00.c [2024-11-07 01:31:15,586 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:31:15,586 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:31:15,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:31:15,672 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;@42a4b5f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:31:15,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:31:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 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 01:31:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 01:31:15,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:15,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:15,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:15,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1444366613, now seen corresponding path program 1 times [2024-11-07 01:31:15,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:15,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250694272] [2024-11-07 01:31:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:15,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:15,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:15,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250694272] [2024-11-07 01:31:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250694272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:15,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:31:15,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443707017] [2024-11-07 01:31:15,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:15,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:15,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:15,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:15,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:15,984 INFO L87 Difference]: Start difference. First operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 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) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 01:31:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:19,438 INFO L93 Difference]: Finished difference Result 2516 states and 4846 transitions. [2024-11-07 01:31:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:19,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-07 01:31:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:19,460 INFO L225 Difference]: With dead ends: 2516 [2024-11-07 01:31:19,461 INFO L226 Difference]: Without dead ends: 1584 [2024-11-07 01:31:19,466 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 01:31:19,470 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 957 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:19,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 621 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-07 01:31:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-07 01:31:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1584. [2024-11-07 01:31:19,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1582 states have (on average 1.6441213653603035) internal successors, (2601), 1583 states have internal predecessors, (2601), 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 01:31:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2601 transitions. [2024-11-07 01:31:19,576 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2601 transitions. Word has length 16 [2024-11-07 01:31:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:19,576 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 2601 transitions. [2024-11-07 01:31:19,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 01:31:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2601 transitions. [2024-11-07 01:31:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 01:31:19,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:19,577 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] [2024-11-07 01:31:19,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:31:19,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:19,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash 502082675, now seen corresponding path program 1 times [2024-11-07 01:31:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668042560] [2024-11-07 01:31:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:19,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668042560] [2024-11-07 01:31:19,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668042560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:19,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:19,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:31:19,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431645787] [2024-11-07 01:31:19,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:19,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:31:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:19,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:31:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:31:19,836 INFO L87 Difference]: Start difference. First operand 1584 states and 2601 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 01:31:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:19,916 INFO L93 Difference]: Finished difference Result 1630 states and 2672 transitions. [2024-11-07 01:31:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:31:19,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2024-11-07 01:31:19,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:19,923 INFO L225 Difference]: With dead ends: 1630 [2024-11-07 01:31:19,923 INFO L226 Difference]: Without dead ends: 1584 [2024-11-07 01:31:19,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:31:19,924 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 0 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:19,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6252 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:19,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-07 01:31:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1584. [2024-11-07 01:31:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1582 states have (on average 1.6245259165613148) internal successors, (2570), 1583 states have internal predecessors, (2570), 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 01:31:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2570 transitions. [2024-11-07 01:31:19,957 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2570 transitions. Word has length 24 [2024-11-07 01:31:19,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:19,957 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 2570 transitions. [2024-11-07 01:31:19,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 01:31:19,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2570 transitions. [2024-11-07 01:31:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 01:31:19,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:19,960 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] [2024-11-07 01:31:19,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:31:19,960 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:19,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1518044022, now seen corresponding path program 1 times [2024-11-07 01:31:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:19,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949428359] [2024-11-07 01:31:19,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:19,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:20,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:20,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949428359] [2024-11-07 01:31:20,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949428359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:20,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:20,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:20,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580170686] [2024-11-07 01:31:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:20,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:20,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:20,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:20,238 INFO L87 Difference]: Start difference. First operand 1584 states and 2570 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 01:31:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:20,593 INFO L93 Difference]: Finished difference Result 2004 states and 3240 transitions. [2024-11-07 01:31:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:31:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2024-11-07 01:31:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:20,603 INFO L225 Difference]: With dead ends: 2004 [2024-11-07 01:31:20,604 INFO L226 Difference]: Without dead ends: 1962 [2024-11-07 01:31:20,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-07 01:31:20,606 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 7953 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7953 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:20,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7953 Valid, 2746 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:31:20,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-07 01:31:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1624. [2024-11-07 01:31:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1622 states have (on average 1.623921085080148) internal successors, (2634), 1623 states have internal predecessors, (2634), 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 01:31:20,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2634 transitions. [2024-11-07 01:31:20,646 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2634 transitions. Word has length 54 [2024-11-07 01:31:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:20,648 INFO L471 AbstractCegarLoop]: Abstraction has 1624 states and 2634 transitions. [2024-11-07 01:31:20,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 01:31:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2634 transitions. [2024-11-07 01:31:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:31:20,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:20,652 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] [2024-11-07 01:31:20,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:31:20,652 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:20,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:20,652 INFO L85 PathProgramCache]: Analyzing trace with hash 32878714, now seen corresponding path program 1 times [2024-11-07 01:31:20,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:20,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997529234] [2024-11-07 01:31:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:20,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:20,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997529234] [2024-11-07 01:31:20,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997529234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:20,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:20,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:20,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863088668] [2024-11-07 01:31:20,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:20,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:20,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:20,762 INFO L87 Difference]: Start difference. First operand 1624 states and 2634 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 01:31:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:20,796 INFO L93 Difference]: Finished difference Result 1777 states and 2877 transitions. [2024-11-07 01:31:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:20,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-07 01:31:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:20,803 INFO L225 Difference]: With dead ends: 1777 [2024-11-07 01:31:20,803 INFO L226 Difference]: Without dead ends: 1695 [2024-11-07 01:31:20,804 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 01:31:20,808 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1482 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:20,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1603 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-11-07 01:31:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1693. [2024-11-07 01:31:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1691 states have (on average 1.621525724423418) internal successors, (2742), 1692 states have internal predecessors, (2742), 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 01:31:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2742 transitions. [2024-11-07 01:31:20,848 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2742 transitions. Word has length 56 [2024-11-07 01:31:20,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:20,849 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2742 transitions. [2024-11-07 01:31:20,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 01:31:20,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2742 transitions. [2024-11-07 01:31:20,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:31:20,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:20,852 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] [2024-11-07 01:31:20,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:31:20,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:20,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:20,853 INFO L85 PathProgramCache]: Analyzing trace with hash 99372226, now seen corresponding path program 1 times [2024-11-07 01:31:20,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:20,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980335341] [2024-11-07 01:31:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:20,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:21,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:21,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980335341] [2024-11-07 01:31:21,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980335341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:21,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:21,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:21,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731876259] [2024-11-07 01:31:21,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:21,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:21,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:21,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:21,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:21,180 INFO L87 Difference]: Start difference. First operand 1693 states and 2742 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 01:31:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:21,359 INFO L93 Difference]: Finished difference Result 1846 states and 2982 transitions. [2024-11-07 01:31:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:21,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2024-11-07 01:31:21,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:21,367 INFO L225 Difference]: With dead ends: 1846 [2024-11-07 01:31:21,368 INFO L226 Difference]: Without dead ends: 1695 [2024-11-07 01:31:21,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:31:21,370 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 2994 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:21,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 1792 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-11-07 01:31:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1693. [2024-11-07 01:31:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1691 states have (on average 1.6203429923122412) internal successors, (2740), 1692 states have internal predecessors, (2740), 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 01:31:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2740 transitions. [2024-11-07 01:31:21,406 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2740 transitions. Word has length 56 [2024-11-07 01:31:21,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:21,406 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2740 transitions. [2024-11-07 01:31:21,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 01:31:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2740 transitions. [2024-11-07 01:31:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 01:31:21,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:21,409 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 01:31:21,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:31:21,410 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:21,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1629151369, now seen corresponding path program 1 times [2024-11-07 01:31:21,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:21,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854317878] [2024-11-07 01:31:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:21,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:21,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:21,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854317878] [2024-11-07 01:31:21,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854317878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:21,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:21,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:31:21,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757963258] [2024-11-07 01:31:21,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:21,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:31:21,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:31:21,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:31:21,746 INFO L87 Difference]: Start difference. First operand 1693 states and 2740 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 01:31:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:21,820 INFO L93 Difference]: Finished difference Result 1701 states and 2749 transitions. [2024-11-07 01:31:21,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 01:31:21,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2024-11-07 01:31:21,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:21,827 INFO L225 Difference]: With dead ends: 1701 [2024-11-07 01:31:21,827 INFO L226 Difference]: Without dead ends: 1699 [2024-11-07 01:31:21,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:31:21,828 INFO L432 NwaCegarLoop]: 1537 mSDtfsCounter, 0 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:21,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10746 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-11-07 01:31:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2024-11-07 01:31:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.6175604007071303) internal successors, (2745), 1698 states have internal predecessors, (2745), 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 01:31:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2745 transitions. [2024-11-07 01:31:21,863 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2745 transitions. Word has length 57 [2024-11-07 01:31:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:21,864 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2745 transitions. [2024-11-07 01:31:21,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 01:31:21,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2745 transitions. [2024-11-07 01:31:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:21,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:21,865 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] [2024-11-07 01:31:21,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:31:21,865 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:21,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:21,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1409361730, now seen corresponding path program 1 times [2024-11-07 01:31:21,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:21,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412854708] [2024-11-07 01:31:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:21,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:21,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:21,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412854708] [2024-11-07 01:31:21,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412854708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:21,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:21,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:21,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259703301] [2024-11-07 01:31:21,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:21,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:21,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:21,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:21,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:21,936 INFO L87 Difference]: Start difference. First operand 1699 states and 2745 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:21,971 INFO L93 Difference]: Finished difference Result 1869 states and 3006 transitions. [2024-11-07 01:31:21,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:21,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-07 01:31:21,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:21,979 INFO L225 Difference]: With dead ends: 1869 [2024-11-07 01:31:21,979 INFO L226 Difference]: Without dead ends: 1781 [2024-11-07 01:31:21,979 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 01:31:21,980 INFO L432 NwaCegarLoop]: 1595 mSDtfsCounter, 1496 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:21,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:21,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-07 01:31:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2024-11-07 01:31:22,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1777 states have (on average 1.6128306133933596) internal successors, (2866), 1778 states have internal predecessors, (2866), 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 01:31:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2866 transitions. [2024-11-07 01:31:22,019 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2866 transitions. Word has length 58 [2024-11-07 01:31:22,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:22,020 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2866 transitions. [2024-11-07 01:31:22,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2866 transitions. [2024-11-07 01:31:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:22,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:22,021 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] [2024-11-07 01:31:22,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:31:22,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:22,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1383487166, now seen corresponding path program 1 times [2024-11-07 01:31:22,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:22,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989613839] [2024-11-07 01:31:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:22,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:22,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:22,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989613839] [2024-11-07 01:31:22,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989613839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:22,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:22,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63991427] [2024-11-07 01:31:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:22,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:22,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:22,080 INFO L87 Difference]: Start difference. First operand 1779 states and 2866 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:22,114 INFO L93 Difference]: Finished difference Result 2225 states and 3546 transitions. [2024-11-07 01:31:22,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:22,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-07 01:31:22,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:22,121 INFO L225 Difference]: With dead ends: 2225 [2024-11-07 01:31:22,121 INFO L226 Difference]: Without dead ends: 1990 [2024-11-07 01:31:22,122 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 01:31:22,123 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 1492 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:22,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2024-11-07 01:31:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1988. [2024-11-07 01:31:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1986 states have (on average 1.6002014098690835) internal successors, (3178), 1987 states have internal predecessors, (3178), 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 01:31:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 3178 transitions. [2024-11-07 01:31:22,164 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 3178 transitions. Word has length 58 [2024-11-07 01:31:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:22,164 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 3178 transitions. [2024-11-07 01:31:22,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 3178 transitions. [2024-11-07 01:31:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:22,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:22,165 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] [2024-11-07 01:31:22,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:31:22,166 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:22,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:22,166 INFO L85 PathProgramCache]: Analyzing trace with hash 696011330, now seen corresponding path program 1 times [2024-11-07 01:31:22,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:22,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536399193] [2024-11-07 01:31:22,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:22,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:22,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:22,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536399193] [2024-11-07 01:31:22,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536399193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:22,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:22,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:22,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116553026] [2024-11-07 01:31:22,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:22,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:22,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:22,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:22,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:22,229 INFO L87 Difference]: Start difference. First operand 1988 states and 3178 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:22,266 INFO L93 Difference]: Finished difference Result 2828 states and 4440 transitions. [2024-11-07 01:31:22,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:22,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-07 01:31:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:22,276 INFO L225 Difference]: With dead ends: 2828 [2024-11-07 01:31:22,276 INFO L226 Difference]: Without dead ends: 2384 [2024-11-07 01:31:22,277 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 01:31:22,279 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 1490 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:22,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:22,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-07 01:31:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2382. [2024-11-07 01:31:22,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2380 states have (on average 1.5773109243697478) internal successors, (3754), 2381 states have internal predecessors, (3754), 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 01:31:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3754 transitions. [2024-11-07 01:31:22,330 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3754 transitions. Word has length 58 [2024-11-07 01:31:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:22,331 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3754 transitions. [2024-11-07 01:31:22,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3754 transitions. [2024-11-07 01:31:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:22,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:22,332 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] [2024-11-07 01:31:22,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:31:22,332 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:22,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1818023102, now seen corresponding path program 1 times [2024-11-07 01:31:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235764941] [2024-11-07 01:31:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:22,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:22,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235764941] [2024-11-07 01:31:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235764941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:22,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:22,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:22,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076685755] [2024-11-07 01:31:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:22,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:22,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:22,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:22,390 INFO L87 Difference]: Start difference. First operand 2382 states and 3754 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:22,440 INFO L93 Difference]: Finished difference Result 3962 states and 6084 transitions. [2024-11-07 01:31:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:22,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-07 01:31:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:22,451 INFO L225 Difference]: With dead ends: 3962 [2024-11-07 01:31:22,451 INFO L226 Difference]: Without dead ends: 3124 [2024-11-07 01:31:22,453 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 01:31:22,454 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 1488 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:22,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1667 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2024-11-07 01:31:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3122. [2024-11-07 01:31:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.5416666666666667) internal successors, (4810), 3121 states have internal predecessors, (4810), 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 01:31:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 4810 transitions. [2024-11-07 01:31:22,526 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 4810 transitions. Word has length 58 [2024-11-07 01:31:22,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:22,527 INFO L471 AbstractCegarLoop]: Abstraction has 3122 states and 4810 transitions. [2024-11-07 01:31:22,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 4810 transitions. [2024-11-07 01:31:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:22,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:22,528 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] [2024-11-07 01:31:22,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:31:22,528 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:22,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:22,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1673218114, now seen corresponding path program 1 times [2024-11-07 01:31:22,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:22,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36440012] [2024-11-07 01:31:22,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:22,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:22,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:22,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:22,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36440012] [2024-11-07 01:31:22,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36440012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:22,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:22,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:22,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074271755] [2024-11-07 01:31:22,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:22,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:22,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:22,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:22,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:22,615 INFO L87 Difference]: Start difference. First operand 3122 states and 4810 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:22,680 INFO L93 Difference]: Finished difference Result 6086 states and 9084 transitions. [2024-11-07 01:31:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-07 01:31:22,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:22,704 INFO L225 Difference]: With dead ends: 6086 [2024-11-07 01:31:22,704 INFO L226 Difference]: Without dead ends: 4508 [2024-11-07 01:31:22,710 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 01:31:22,711 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 1494 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:22,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2024-11-07 01:31:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4506. [2024-11-07 01:31:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4506 states, 4504 states have (on average 1.494227353463588) internal successors, (6730), 4505 states have internal predecessors, (6730), 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 01:31:22,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 6730 transitions. [2024-11-07 01:31:22,828 INFO L78 Accepts]: Start accepts. Automaton has 4506 states and 6730 transitions. Word has length 58 [2024-11-07 01:31:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:22,828 INFO L471 AbstractCegarLoop]: Abstraction has 4506 states and 6730 transitions. [2024-11-07 01:31:22,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 01:31:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states and 6730 transitions. [2024-11-07 01:31:22,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:22,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:22,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:22,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:31:22,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:22,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:22,836 INFO L85 PathProgramCache]: Analyzing trace with hash 273219202, now seen corresponding path program 1 times [2024-11-07 01:31:22,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:22,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824398333] [2024-11-07 01:31:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:22,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:31:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824398333] [2024-11-07 01:31:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824398333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:22,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:22,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:22,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122182874] [2024-11-07 01:31:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:22,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:22,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:22,997 INFO L87 Difference]: Start difference. First operand 4506 states and 6730 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 01:31:23,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:23,558 INFO L93 Difference]: Finished difference Result 19110 states and 27536 transitions. [2024-11-07 01:31:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:23,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 77 [2024-11-07 01:31:23,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:23,651 INFO L225 Difference]: With dead ends: 19110 [2024-11-07 01:31:23,651 INFO L226 Difference]: Without dead ends: 16996 [2024-11-07 01:31:23,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:23,660 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6307 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:23,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 3568 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16996 states. [2024-11-07 01:31:23,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16996 to 7050. [2024-11-07 01:31:23,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7048 states have (on average 1.4633938706015892) internal successors, (10314), 7049 states have internal predecessors, (10314), 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 01:31:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10314 transitions. [2024-11-07 01:31:23,923 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10314 transitions. Word has length 77 [2024-11-07 01:31:23,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:23,924 INFO L471 AbstractCegarLoop]: Abstraction has 7050 states and 10314 transitions. [2024-11-07 01:31:23,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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 01:31:23,925 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10314 transitions. [2024-11-07 01:31:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:23,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:23,927 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:23,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:31:23,927 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:23,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1775337602, now seen corresponding path program 1 times [2024-11-07 01:31:23,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:23,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972914543] [2024-11-07 01:31:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:23,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 01:31:24,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:24,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972914543] [2024-11-07 01:31:24,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972914543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:24,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:24,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:24,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950823385] [2024-11-07 01:31:24,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:24,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:24,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:24,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:24,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:24,075 INFO L87 Difference]: Start difference. First operand 7050 states and 10314 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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 01:31:24,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:24,487 INFO L93 Difference]: Finished difference Result 22070 states and 31728 transitions. [2024-11-07 01:31:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:24,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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 77 [2024-11-07 01:31:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:24,530 INFO L225 Difference]: With dead ends: 22070 [2024-11-07 01:31:24,530 INFO L226 Difference]: Without dead ends: 19108 [2024-11-07 01:31:24,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:24,541 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6353 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:24,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3597 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19108 states. [2024-11-07 01:31:24,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19108 to 11066. [2024-11-07 01:31:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11066 states, 11064 states have (on average 1.4426970354302242) internal successors, (15962), 11065 states have internal predecessors, (15962), 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 01:31:24,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11066 states to 11066 states and 15962 transitions. [2024-11-07 01:31:24,920 INFO L78 Accepts]: Start accepts. Automaton has 11066 states and 15962 transitions. Word has length 77 [2024-11-07 01:31:24,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:24,920 INFO L471 AbstractCegarLoop]: Abstraction has 11066 states and 15962 transitions. [2024-11-07 01:31:24,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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 01:31:24,921 INFO L276 IsEmpty]: Start isEmpty. Operand 11066 states and 15962 transitions. [2024-11-07 01:31:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:24,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:24,923 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:24,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:31:24,923 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:24,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -440131198, now seen corresponding path program 1 times [2024-11-07 01:31:24,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:24,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676759060] [2024-11-07 01:31:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:24,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 01:31:25,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:25,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676759060] [2024-11-07 01:31:25,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676759060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:25,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:25,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:25,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493451053] [2024-11-07 01:31:25,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:25,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:25,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:25,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:25,066 INFO L87 Difference]: Start difference. First operand 11066 states and 15962 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 01:31:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:25,777 INFO L93 Difference]: Finished difference Result 25030 states and 35904 transitions. [2024-11-07 01:31:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:25,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 77 [2024-11-07 01:31:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:25,829 INFO L225 Difference]: With dead ends: 25030 [2024-11-07 01:31:25,829 INFO L226 Difference]: Without dead ends: 22068 [2024-11-07 01:31:25,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:25,842 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6399 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6399 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:25,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6399 Valid, 3562 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:25,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22068 states. [2024-11-07 01:31:26,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22068 to 14026. [2024-11-07 01:31:26,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14026 states, 14024 states have (on average 1.4359669138619509) internal successors, (20138), 14025 states have internal predecessors, (20138), 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 01:31:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14026 states to 14026 states and 20138 transitions. [2024-11-07 01:31:26,282 INFO L78 Accepts]: Start accepts. Automaton has 14026 states and 20138 transitions. Word has length 77 [2024-11-07 01:31:26,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:26,282 INFO L471 AbstractCegarLoop]: Abstraction has 14026 states and 20138 transitions. [2024-11-07 01:31:26,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 01:31:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 14026 states and 20138 transitions. [2024-11-07 01:31:26,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:26,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:26,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:26,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:31:26,286 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:26,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:26,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1340801666, now seen corresponding path program 1 times [2024-11-07 01:31:26,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:26,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998453663] [2024-11-07 01:31:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:26,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 01:31:26,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998453663] [2024-11-07 01:31:26,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998453663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:26,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:26,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:26,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550130196] [2024-11-07 01:31:26,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:26,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:26,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:26,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:26,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:26,506 INFO L87 Difference]: Start difference. First operand 14026 states and 20138 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 01:31:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:27,032 INFO L93 Difference]: Finished difference Result 27990 states and 40080 transitions. [2024-11-07 01:31:27,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:27,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 77 [2024-11-07 01:31:27,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:27,160 INFO L225 Difference]: With dead ends: 27990 [2024-11-07 01:31:27,160 INFO L226 Difference]: Without dead ends: 25028 [2024-11-07 01:31:27,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:27,172 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6355 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:27,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6355 Valid, 3604 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25028 states. [2024-11-07 01:31:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25028 to 16986. [2024-11-07 01:31:27,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16986 states, 16984 states have (on average 1.4315826660386246) internal successors, (24314), 16985 states have internal predecessors, (24314), 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 01:31:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16986 states to 16986 states and 24314 transitions. [2024-11-07 01:31:27,768 INFO L78 Accepts]: Start accepts. Automaton has 16986 states and 24314 transitions. Word has length 77 [2024-11-07 01:31:27,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:27,768 INFO L471 AbstractCegarLoop]: Abstraction has 16986 states and 24314 transitions. [2024-11-07 01:31:27,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 01:31:27,769 INFO L276 IsEmpty]: Start isEmpty. Operand 16986 states and 24314 transitions. [2024-11-07 01:31:27,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:27,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:27,772 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:27,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:31:27,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:27,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash 537075586, now seen corresponding path program 1 times [2024-11-07 01:31:27,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:27,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185624591] [2024-11-07 01:31:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:31:27,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:27,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185624591] [2024-11-07 01:31:27,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185624591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:27,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:27,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:27,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830965046] [2024-11-07 01:31:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:27,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:27,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:27,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:27,975 INFO L87 Difference]: Start difference. First operand 16986 states and 24314 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 01:31:28,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:28,493 INFO L93 Difference]: Finished difference Result 30950 states and 44256 transitions. [2024-11-07 01:31:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:28,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 77 [2024-11-07 01:31:28,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:28,554 INFO L225 Difference]: With dead ends: 30950 [2024-11-07 01:31:28,554 INFO L226 Difference]: Without dead ends: 27988 [2024-11-07 01:31:28,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:28,563 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 6309 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6309 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:28,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6309 Valid, 3684 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:28,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27988 states. [2024-11-07 01:31:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27988 to 19946. [2024-11-07 01:31:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.4284997994384276) internal successors, (28490), 19945 states have internal predecessors, (28490), 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 01:31:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28490 transitions. [2024-11-07 01:31:29,105 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28490 transitions. Word has length 77 [2024-11-07 01:31:29,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:29,106 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28490 transitions. [2024-11-07 01:31:29,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 01:31:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28490 transitions. [2024-11-07 01:31:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 01:31:29,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:29,110 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:29,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:31:29,110 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:29,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash 895246760, now seen corresponding path program 1 times [2024-11-07 01:31:29,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:29,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397414196] [2024-11-07 01:31:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:29,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:29,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:29,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397414196] [2024-11-07 01:31:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397414196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:29,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:29,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595239629] [2024-11-07 01:31:29,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:29,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:29,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:29,284 INFO L87 Difference]: Start difference. First operand 19946 states and 28490 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 01:31:29,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:29,863 INFO L93 Difference]: Finished difference Result 38350 states and 54476 transitions. [2024-11-07 01:31:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:29,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-11-07 01:31:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:29,897 INFO L225 Difference]: With dead ends: 38350 [2024-11-07 01:31:29,897 INFO L226 Difference]: Without dead ends: 19948 [2024-11-07 01:31:29,912 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 01:31:29,913 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 45 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:29,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2024-11-07 01:31:30,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19946. [2024-11-07 01:31:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.4136582430806257) internal successors, (28194), 19945 states have internal predecessors, (28194), 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 01:31:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28194 transitions. [2024-11-07 01:31:30,418 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28194 transitions. Word has length 78 [2024-11-07 01:31:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:30,418 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28194 transitions. [2024-11-07 01:31:30,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 01:31:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28194 transitions. [2024-11-07 01:31:30,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:31:30,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:30,422 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:30,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:31:30,422 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:30,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:30,423 INFO L85 PathProgramCache]: Analyzing trace with hash -615640646, now seen corresponding path program 1 times [2024-11-07 01:31:30,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:30,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550228749] [2024-11-07 01:31:30,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:30,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:30,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:30,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550228749] [2024-11-07 01:31:30,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550228749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:30,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:30,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:30,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266997588] [2024-11-07 01:31:30,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:30,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:30,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:30,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:30,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:30,522 INFO L87 Difference]: Start difference. First operand 19946 states and 28194 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 01:31:30,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:30,678 INFO L93 Difference]: Finished difference Result 26833 states and 37888 transitions. [2024-11-07 01:31:30,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:30,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2024-11-07 01:31:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:30,701 INFO L225 Difference]: With dead ends: 26833 [2024-11-07 01:31:30,701 INFO L226 Difference]: Without dead ends: 8431 [2024-11-07 01:31:30,720 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 01:31:30,720 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 39 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:30,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:30,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8431 states. [2024-11-07 01:31:31,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8431 to 8423. [2024-11-07 01:31:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 8421 states have (on average 1.4353402208763806) internal successors, (12087), 8422 states have internal predecessors, (12087), 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 01:31:31,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 12087 transitions. [2024-11-07 01:31:31,048 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 12087 transitions. Word has length 79 [2024-11-07 01:31:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:31,048 INFO L471 AbstractCegarLoop]: Abstraction has 8423 states and 12087 transitions. [2024-11-07 01:31:31,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 01:31:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 12087 transitions. [2024-11-07 01:31:31,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 01:31:31,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:31,051 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:31,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:31:31,055 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:31,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1683802150, now seen corresponding path program 1 times [2024-11-07 01:31:31,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:31,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984701157] [2024-11-07 01:31:31,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:31,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:31,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:31,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984701157] [2024-11-07 01:31:31,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984701157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:31,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:31,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:31,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852576143] [2024-11-07 01:31:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:31,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:31,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:31,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:31,286 INFO L87 Difference]: Start difference. First operand 8423 states and 12087 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 01:31:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:31,520 INFO L93 Difference]: Finished difference Result 11859 states and 16873 transitions. [2024-11-07 01:31:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:31,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-11-07 01:31:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:31,535 INFO L225 Difference]: With dead ends: 11859 [2024-11-07 01:31:31,535 INFO L226 Difference]: Without dead ends: 4993 [2024-11-07 01:31:31,545 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 01:31:31,546 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 41 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:31,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:31,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2024-11-07 01:31:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4991. [2024-11-07 01:31:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4989 states have (on average 1.4533974744437763) internal successors, (7251), 4990 states have internal predecessors, (7251), 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 01:31:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7251 transitions. [2024-11-07 01:31:31,696 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7251 transitions. Word has length 80 [2024-11-07 01:31:31,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:31,696 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7251 transitions. [2024-11-07 01:31:31,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 01:31:31,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7251 transitions. [2024-11-07 01:31:31,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 01:31:31,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:31,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:31,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:31:31,699 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:31,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:31,700 INFO L85 PathProgramCache]: Analyzing trace with hash 263472268, now seen corresponding path program 1 times [2024-11-07 01:31:31,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:31,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103292549] [2024-11-07 01:31:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:31,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:31,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103292549] [2024-11-07 01:31:31,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103292549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:31,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:31,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:31,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37490292] [2024-11-07 01:31:31,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:31,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:31,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:31,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:31,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:31,820 INFO L87 Difference]: Start difference. First operand 4991 states and 7251 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 01:31:31,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:31,893 INFO L93 Difference]: Finished difference Result 6711 states and 9619 transitions. [2024-11-07 01:31:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:31,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-11-07 01:31:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:31,902 INFO L225 Difference]: With dead ends: 6711 [2024-11-07 01:31:31,902 INFO L226 Difference]: Without dead ends: 3277 [2024-11-07 01:31:31,907 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 01:31:31,908 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 38 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:31,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3069 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2024-11-07 01:31:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3275. [2024-11-07 01:31:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3273 states have (on average 1.4845707302169264) internal successors, (4859), 3274 states have internal predecessors, (4859), 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 01:31:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4859 transitions. [2024-11-07 01:31:32,002 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4859 transitions. Word has length 82 [2024-11-07 01:31:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:32,002 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 4859 transitions. [2024-11-07 01:31:32,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 01:31:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4859 transitions. [2024-11-07 01:31:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:31:32,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:32,004 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:32,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:31:32,005 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:32,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:32,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1956730946, now seen corresponding path program 1 times [2024-11-07 01:31:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822952116] [2024-11-07 01:31:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:32,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:32,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822952116] [2024-11-07 01:31:32,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822952116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:32,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:32,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:32,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685180081] [2024-11-07 01:31:32,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:32,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:32,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:32,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:32,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:32,117 INFO L87 Difference]: Start difference. First operand 3275 states and 4859 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 01:31:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:32,154 INFO L93 Difference]: Finished difference Result 4137 states and 6031 transitions. [2024-11-07 01:31:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:32,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-11-07 01:31:32,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:32,162 INFO L225 Difference]: With dead ends: 4137 [2024-11-07 01:31:32,162 INFO L226 Difference]: Without dead ends: 2419 [2024-11-07 01:31:32,164 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 01:31:32,165 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 35 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:32,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:32,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2024-11-07 01:31:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2417. [2024-11-07 01:31:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2415 states have (on average 1.522153209109731) internal successors, (3676), 2416 states have internal predecessors, (3676), 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 01:31:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 3676 transitions. [2024-11-07 01:31:32,205 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 3676 transitions. Word has length 84 [2024-11-07 01:31:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:32,205 INFO L471 AbstractCegarLoop]: Abstraction has 2417 states and 3676 transitions. [2024-11-07 01:31:32,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 01:31:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 3676 transitions. [2024-11-07 01:31:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 01:31:32,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:32,207 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:32,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:31:32,208 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:32,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1389986160, now seen corresponding path program 1 times [2024-11-07 01:31:32,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:32,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504598763] [2024-11-07 01:31:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:32,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:33,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:33,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504598763] [2024-11-07 01:31:33,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504598763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:31:33,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457953766] [2024-11-07 01:31:33,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:33,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:33,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:33,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:31:33,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:31:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:33,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 01:31:33,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:31:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:33,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:31:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:34,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457953766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:31:34,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:31:34,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-11-07 01:31:34,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842183941] [2024-11-07 01:31:34,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:31:34,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 01:31:34,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 01:31:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-07 01:31:34,460 INFO L87 Difference]: Start difference. First operand 2417 states and 3676 transitions. Second operand has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 22 states have internal predecessors, (245), 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 01:31:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:39,214 INFO L93 Difference]: Finished difference Result 8743 states and 11988 transitions. [2024-11-07 01:31:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-07 01:31:39,215 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 22 states have internal predecessors, (245), 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 86 [2024-11-07 01:31:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:39,226 INFO L225 Difference]: With dead ends: 8743 [2024-11-07 01:31:39,226 INFO L226 Difference]: Without dead ends: 7805 [2024-11-07 01:31:39,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3138 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1601, Invalid=7329, Unknown=0, NotChecked=0, Total=8930 [2024-11-07 01:31:39,233 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 22249 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22249 SdHoareTripleChecker+Valid, 8098 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:39,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22249 Valid, 8098 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:31:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7805 states. [2024-11-07 01:31:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7805 to 7143. [2024-11-07 01:31:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7143 states, 7141 states have (on average 1.3723568127713206) internal successors, (9800), 7142 states have internal predecessors, (9800), 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 01:31:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7143 states to 7143 states and 9800 transitions. [2024-11-07 01:31:39,487 INFO L78 Accepts]: Start accepts. Automaton has 7143 states and 9800 transitions. Word has length 86 [2024-11-07 01:31:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:39,488 INFO L471 AbstractCegarLoop]: Abstraction has 7143 states and 9800 transitions. [2024-11-07 01:31:39,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 22 states have internal predecessors, (245), 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 01:31:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 7143 states and 9800 transitions. [2024-11-07 01:31:39,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 01:31:39,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:39,490 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:39,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 01:31:39,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-07 01:31:39,695 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:39,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:39,695 INFO L85 PathProgramCache]: Analyzing trace with hash -629409436, now seen corresponding path program 1 times [2024-11-07 01:31:39,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296354018] [2024-11-07 01:31:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:39,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:40,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:40,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296354018] [2024-11-07 01:31:40,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296354018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:31:40,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994779493] [2024-11-07 01:31:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:40,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:40,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:40,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:31:40,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:31:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:40,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 01:31:40,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:31:40,677 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:40,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:31:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:41,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994779493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:31:41,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:31:41,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-07 01:31:41,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777102493] [2024-11-07 01:31:41,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:31:41,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 01:31:41,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:41,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 01:31:41,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-07 01:31:41,401 INFO L87 Difference]: Start difference. First operand 7143 states and 9800 transitions. Second operand has 25 states, 25 states have (on average 9.32) internal successors, (233), 24 states have internal predecessors, (233), 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 01:31:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:43,135 INFO L93 Difference]: Finished difference Result 28624 states and 37968 transitions. [2024-11-07 01:31:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 01:31:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.32) internal successors, (233), 24 states have internal predecessors, (233), 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 87 [2024-11-07 01:31:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:43,166 INFO L225 Difference]: With dead ends: 28624 [2024-11-07 01:31:43,166 INFO L226 Difference]: Without dead ends: 23184 [2024-11-07 01:31:43,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=629, Invalid=2233, Unknown=0, NotChecked=0, Total=2862 [2024-11-07 01:31:43,177 INFO L432 NwaCegarLoop]: 1497 mSDtfsCounter, 21083 mSDsluCounter, 4956 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21083 SdHoareTripleChecker+Valid, 6453 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:43,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21083 Valid, 6453 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:31:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23184 states. [2024-11-07 01:31:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23184 to 22884. [2024-11-07 01:31:43,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22884 states, 22882 states have (on average 1.3038632986627043) internal successors, (29835), 22883 states have internal predecessors, (29835), 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 01:31:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22884 states to 22884 states and 29835 transitions. [2024-11-07 01:31:44,010 INFO L78 Accepts]: Start accepts. Automaton has 22884 states and 29835 transitions. Word has length 87 [2024-11-07 01:31:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:44,010 INFO L471 AbstractCegarLoop]: Abstraction has 22884 states and 29835 transitions. [2024-11-07 01:31:44,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.32) internal successors, (233), 24 states have internal predecessors, (233), 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 01:31:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 22884 states and 29835 transitions. [2024-11-07 01:31:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 01:31:44,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:44,013 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:44,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 01:31:44,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:44,215 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:44,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1891046244, now seen corresponding path program 1 times [2024-11-07 01:31:44,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:44,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42011459] [2024-11-07 01:31:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:44,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:45,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:45,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42011459] [2024-11-07 01:31:45,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42011459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:31:45,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580417934] [2024-11-07 01:31:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:45,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:45,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:45,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:31:45,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:31:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:45,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 01:31:45,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:31:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:46,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:31:46,858 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:46,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580417934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:31:46,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:31:46,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-11-07 01:31:46,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175751964] [2024-11-07 01:31:46,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:31:46,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 01:31:46,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:46,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 01:31:46,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 01:31:46,861 INFO L87 Difference]: Start difference. First operand 22884 states and 29835 transitions. Second operand has 34 states, 34 states have (on average 6.794117647058823) internal successors, (231), 34 states have internal predecessors, (231), 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 01:31:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:50,120 INFO L93 Difference]: Finished difference Result 68402 states and 88661 transitions. [2024-11-07 01:31:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-07 01:31:50,121 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.794117647058823) internal successors, (231), 34 states have internal predecessors, (231), 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 87 [2024-11-07 01:31:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:50,167 INFO L225 Difference]: With dead ends: 68402 [2024-11-07 01:31:50,167 INFO L226 Difference]: Without dead ends: 47874 [2024-11-07 01:31:50,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=926, Invalid=3766, Unknown=0, NotChecked=0, Total=4692 [2024-11-07 01:31:50,181 INFO L432 NwaCegarLoop]: 1538 mSDtfsCounter, 20714 mSDsluCounter, 6883 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20714 SdHoareTripleChecker+Valid, 8421 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:50,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20714 Valid, 8421 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:31:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47874 states. [2024-11-07 01:31:51,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47874 to 46762. [2024-11-07 01:31:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46762 states, 46760 states have (on average 1.2797904191616767) internal successors, (59843), 46761 states have internal predecessors, (59843), 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 01:31:51,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46762 states to 46762 states and 59843 transitions. [2024-11-07 01:31:51,456 INFO L78 Accepts]: Start accepts. Automaton has 46762 states and 59843 transitions. Word has length 87 [2024-11-07 01:31:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:51,457 INFO L471 AbstractCegarLoop]: Abstraction has 46762 states and 59843 transitions. [2024-11-07 01:31:51,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.794117647058823) internal successors, (231), 34 states have internal predecessors, (231), 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 01:31:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 46762 states and 59843 transitions. [2024-11-07 01:31:51,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 01:31:51,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:51,460 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:51,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 01:31:51,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:51,660 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:51,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1732416221, now seen corresponding path program 1 times [2024-11-07 01:31:51,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:51,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335296753] [2024-11-07 01:31:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:51,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:51,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:51,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335296753] [2024-11-07 01:31:51,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335296753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:51,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:51,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:51,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181014747] [2024-11-07 01:31:51,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:51,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:51,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:51,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:51,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:51,725 INFO L87 Difference]: Start difference. First operand 46762 states and 59843 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 01:31:55,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:55,618 INFO L93 Difference]: Finished difference Result 49768 states and 64770 transitions. [2024-11-07 01:31:55,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:55,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2024-11-07 01:31:55,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:55,666 INFO L225 Difference]: With dead ends: 49768 [2024-11-07 01:31:55,666 INFO L226 Difference]: Without dead ends: 48264 [2024-11-07 01:31:55,678 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 01:31:55,678 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 753 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:55,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1365 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-07 01:31:55,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48264 states. [2024-11-07 01:31:57,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48264 to 48264. [2024-11-07 01:31:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48264 states, 48262 states have (on average 1.2846338734408023) internal successors, (61999), 48263 states have internal predecessors, (61999), 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 01:31:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48264 states to 48264 states and 61999 transitions. [2024-11-07 01:31:57,244 INFO L78 Accepts]: Start accepts. Automaton has 48264 states and 61999 transitions. Word has length 87 [2024-11-07 01:31:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:57,244 INFO L471 AbstractCegarLoop]: Abstraction has 48264 states and 61999 transitions. [2024-11-07 01:31:57,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 01:31:57,244 INFO L276 IsEmpty]: Start isEmpty. Operand 48264 states and 61999 transitions. [2024-11-07 01:31:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 01:31:57,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:57,246 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:57,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 01:31:57,247 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:57,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:57,247 INFO L85 PathProgramCache]: Analyzing trace with hash -996142702, now seen corresponding path program 1 times [2024-11-07 01:31:57,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:57,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914302667] [2024-11-07 01:31:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:57,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:57,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:57,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914302667] [2024-11-07 01:31:57,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914302667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:31:57,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833782204] [2024-11-07 01:31:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:57,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:57,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:57,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:31:57,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:31:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:57,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 01:31:57,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:31:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:58,627 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:31:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:59,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833782204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:31:59,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:31:59,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 12] total 30 [2024-11-07 01:31:59,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120211871] [2024-11-07 01:31:59,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:31:59,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-07 01:31:59,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:59,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-07 01:31:59,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2024-11-07 01:31:59,607 INFO L87 Difference]: Start difference. First operand 48264 states and 61999 transitions. Second operand has 30 states, 30 states have (on average 7.466666666666667) internal successors, (224), 30 states have internal predecessors, (224), 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 01:32:03,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:03,676 INFO L93 Difference]: Finished difference Result 174250 states and 222639 transitions. [2024-11-07 01:32:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:32:03,676 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 7.466666666666667) internal successors, (224), 30 states have internal predecessors, (224), 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 88 [2024-11-07 01:32:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:03,823 INFO L225 Difference]: With dead ends: 174250 [2024-11-07 01:32:03,823 INFO L226 Difference]: Without dead ends: 133598 [2024-11-07 01:32:03,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=724, Invalid=2356, Unknown=0, NotChecked=0, Total=3080 [2024-11-07 01:32:03,865 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 12724 mSDsluCounter, 7933 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12724 SdHoareTripleChecker+Valid, 9472 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:03,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12724 Valid, 9472 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:32:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133598 states. [2024-11-07 01:32:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133598 to 130348. [2024-11-07 01:32:07,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130348 states, 130346 states have (on average 1.260452948306814) internal successors, (164295), 130347 states have internal predecessors, (164295), 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 01:32:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130348 states to 130348 states and 164295 transitions. [2024-11-07 01:32:07,935 INFO L78 Accepts]: Start accepts. Automaton has 130348 states and 164295 transitions. Word has length 88 [2024-11-07 01:32:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:07,935 INFO L471 AbstractCegarLoop]: Abstraction has 130348 states and 164295 transitions. [2024-11-07 01:32:07,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.466666666666667) internal successors, (224), 30 states have internal predecessors, (224), 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 01:32:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 130348 states and 164295 transitions. [2024-11-07 01:32:07,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 01:32:07,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:07,938 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:32:07,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 01:32:08,138 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,SelfDestructingSolverStorable25 [2024-11-07 01:32:08,139 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:08,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash -861720172, now seen corresponding path program 1 times [2024-11-07 01:32:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:08,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902551487] [2024-11-07 01:32:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:08,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:08,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902551487] [2024-11-07 01:32:08,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902551487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:08,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348448926] [2024-11-07 01:32:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:08,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:08,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:08,516 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 01:32:08,518 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 01:32:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:08,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 01:32:08,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:32:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:09,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:32:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:09,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348448926] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:32:09,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:32:09,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-07 01:32:09,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75824146] [2024-11-07 01:32:09,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:32:09,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 01:32:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 01:32:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-07 01:32:09,865 INFO L87 Difference]: Start difference. First operand 130348 states and 164295 transitions. Second operand has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 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 01:32:13,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:13,702 INFO L93 Difference]: Finished difference Result 249774 states and 314744 transitions. [2024-11-07 01:32:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 01:32:13,703 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 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 89 [2024-11-07 01:32:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:13,888 INFO L225 Difference]: With dead ends: 249774 [2024-11-07 01:32:13,888 INFO L226 Difference]: Without dead ends: 135440 [2024-11-07 01:32:13,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=749, Unknown=0, NotChecked=0, Total=992 [2024-11-07 01:32:13,955 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 15134 mSDsluCounter, 4904 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15134 SdHoareTripleChecker+Valid, 6424 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:13,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15134 Valid, 6424 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:32:14,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135440 states. [2024-11-07 01:32:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135440 to 125392. [2024-11-07 01:32:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125392 states, 125390 states have (on average 1.2483770635616875) internal successors, (156534), 125391 states have internal predecessors, (156534), 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 01:32:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125392 states to 125392 states and 156534 transitions. [2024-11-07 01:32:18,615 INFO L78 Accepts]: Start accepts. Automaton has 125392 states and 156534 transitions. Word has length 89 [2024-11-07 01:32:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:18,615 INFO L471 AbstractCegarLoop]: Abstraction has 125392 states and 156534 transitions. [2024-11-07 01:32:18,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.857142857142858) internal successors, (207), 20 states have internal predecessors, (207), 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 01:32:18,615 INFO L276 IsEmpty]: Start isEmpty. Operand 125392 states and 156534 transitions. [2024-11-07 01:32:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:32:18,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:18,619 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:32:18,635 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 01:32:18,819 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,SelfDestructingSolverStorable26 [2024-11-07 01:32:18,819 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:18,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:18,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1712352226, now seen corresponding path program 1 times [2024-11-07 01:32:18,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:18,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331635899] [2024-11-07 01:32:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:20,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331635899] [2024-11-07 01:32:20,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331635899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:20,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107420402] [2024-11-07 01:32:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:20,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:20,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:20,810 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 01:32:20,810 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 01:32:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:20,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 01:32:20,951 INFO L278 TraceCheckSpWp]: Computing forward predicates...