./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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', '64bit', '--witnessprinter.graph.data.programhash', 'de940fca6d64eccb0c65ba196c7e2e2564d42ad4ccc15ff447c131480f1f19c9'] 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash de940fca6d64eccb0c65ba196c7e2e2564d42ad4ccc15ff447c131480f1f19c9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:48:22,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:48:22,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:48:22,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:48:22,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:48:22,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:48:22,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:48:22,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:48:22,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:48:22,137 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:48:22,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:48:22,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:48:22,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:48:22,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:48:22,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:48:22,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:48:22,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:48:22,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:48:22,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:48:22,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:48:22,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:48:22,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:22,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:48:22,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:48:22,140 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de940fca6d64eccb0c65ba196c7e2e2564d42ad4ccc15ff447c131480f1f19c9 [2024-11-07 03:48:22,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:48:22,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:48:22,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:48:22,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:48:22,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:48:22,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c [2024-11-07 03:48:23,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:48:24,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:48:24,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c [2024-11-07 03:48:24,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/458870393/dd98de5d58c946aa9bf015c7b5a8f1e2/FLAGd585ab975 [2024-11-07 03:48:24,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/458870393/dd98de5d58c946aa9bf015c7b5a8f1e2 [2024-11-07 03:48:24,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:48:24,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:48:24,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:24,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:48:24,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:48:24,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142f6da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24, skipping insertion in model container [2024-11-07 03:48:24,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:48:24,305 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c[1259,1272] [2024-11-07 03:48:24,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:24,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:48:24,496 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p1.c[1259,1272] [2024-11-07 03:48:24,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:24,572 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:48:24,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24 WrapperNode [2024-11-07 03:48:24,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:24,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:24,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:48:24,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:48:24,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,786 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2116 [2024-11-07 03:48:24,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:24,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:48:24,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:48:24,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:48:24,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,957 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 03:48:24,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:24,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:25,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:25,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:25,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:25,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:25,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:48:25,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:48:25,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:48:25,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:48:25,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (1/1) ... [2024-11-07 03:48:25,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:25,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:25,177 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 03:48:25,182 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 03:48:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:48:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:48:25,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:48:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:48:25,472 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:48:25,474 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:48:27,570 INFO L? ?]: Removed 1281 outVars from TransFormulas that were not future-live. [2024-11-07 03:48:27,570 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:48:27,593 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:48:27,596 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:48:27,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:27 BoogieIcfgContainer [2024-11-07 03:48:27,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:48:27,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:48:27,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:48:27,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:48:27,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:24" (1/3) ... [2024-11-07 03:48:27,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2f6a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:27, skipping insertion in model container [2024-11-07 03:48:27,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:24" (2/3) ... [2024-11-07 03:48:27,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2f6a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:27, skipping insertion in model container [2024-11-07 03:48:27,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:27" (3/3) ... [2024-11-07 03:48:27,604 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p1.c [2024-11-07 03:48:27,614 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:48:27,614 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:48:27,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:48:27,680 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;@6d8c7201, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:48:27,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:48:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 648 states, 646 states have (on average 1.5) internal successors, (969), 647 states have internal predecessors, (969), 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 03:48:27,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-07 03:48:27,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:27,692 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] [2024-11-07 03:48:27,693 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:27,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash -725709712, now seen corresponding path program 1 times [2024-11-07 03:48:27,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:27,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833883019] [2024-11-07 03:48:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:27,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:28,321 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 03:48:28,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:28,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833883019] [2024-11-07 03:48:28,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833883019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:28,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:28,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694431385] [2024-11-07 03:48:28,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:28,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:28,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:28,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:28,402 INFO L87 Difference]: Start difference. First operand has 648 states, 646 states have (on average 1.5) internal successors, (969), 647 states have internal predecessors, (969), 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 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 03:48:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:28,510 INFO L93 Difference]: Finished difference Result 1241 states and 1859 transitions. [2024-11-07 03:48:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:28,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2024-11-07 03:48:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:28,530 INFO L225 Difference]: With dead ends: 1241 [2024-11-07 03:48:28,531 INFO L226 Difference]: Without dead ends: 647 [2024-11-07 03:48:28,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:28,538 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:28,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2883 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-07 03:48:28,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2024-11-07 03:48:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 1.4969040247678018) internal successors, (967), 646 states have internal predecessors, (967), 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 03:48:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 967 transitions. [2024-11-07 03:48:28,592 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 967 transitions. Word has length 51 [2024-11-07 03:48:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:28,592 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 967 transitions. [2024-11-07 03:48:28,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 03:48:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 967 transitions. [2024-11-07 03:48:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-07 03:48:28,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:28,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:28,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:48:28,594 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:28,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:28,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1020469140, now seen corresponding path program 1 times [2024-11-07 03:48:28,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:28,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626172061] [2024-11-07 03:48:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:28,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:28,795 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 03:48:28,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:28,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626172061] [2024-11-07 03:48:28,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626172061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:28,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:28,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:28,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479787045] [2024-11-07 03:48:28,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:28,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:28,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:28,801 INFO L87 Difference]: Start difference. First operand 647 states and 967 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 03:48:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:28,865 INFO L93 Difference]: Finished difference Result 1242 states and 1857 transitions. [2024-11-07 03:48:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:28,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2024-11-07 03:48:28,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:28,868 INFO L225 Difference]: With dead ends: 1242 [2024-11-07 03:48:28,868 INFO L226 Difference]: Without dead ends: 649 [2024-11-07 03:48:28,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:28,874 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:28,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2879 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-07 03:48:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2024-11-07 03:48:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.4953703703703705) internal successors, (969), 648 states have internal predecessors, (969), 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 03:48:28,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 969 transitions. [2024-11-07 03:48:28,895 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 969 transitions. Word has length 52 [2024-11-07 03:48:28,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:28,895 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 969 transitions. [2024-11-07 03:48:28,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 03:48:28,896 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 969 transitions. [2024-11-07 03:48:28,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-07 03:48:28,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:28,897 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] [2024-11-07 03:48:28,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:48:28,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:28,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:28,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1627229385, now seen corresponding path program 1 times [2024-11-07 03:48:28,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:28,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972159787] [2024-11-07 03:48:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:28,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:29,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:29,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:29,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972159787] [2024-11-07 03:48:29,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972159787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:29,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:29,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:29,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891843050] [2024-11-07 03:48:29,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:29,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:29,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:29,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:29,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:29,349 INFO L87 Difference]: Start difference. First operand 649 states and 969 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 03:48:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:29,522 INFO L93 Difference]: Finished difference Result 1372 states and 2046 transitions. [2024-11-07 03:48:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2024-11-07 03:48:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:29,527 INFO L225 Difference]: With dead ends: 1372 [2024-11-07 03:48:29,527 INFO L226 Difference]: Without dead ends: 777 [2024-11-07 03:48:29,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:29,529 INFO L432 NwaCegarLoop]: 954 mSDtfsCounter, 223 mSDsluCounter, 4673 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 5627 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:29,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 5627 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-07 03:48:29,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 679. [2024-11-07 03:48:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 678 states have (on average 1.4926253687315634) internal successors, (1012), 678 states have internal predecessors, (1012), 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 03:48:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1012 transitions. [2024-11-07 03:48:29,560 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1012 transitions. Word has length 53 [2024-11-07 03:48:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:29,561 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 1012 transitions. [2024-11-07 03:48:29,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 03:48:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1012 transitions. [2024-11-07 03:48:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 03:48:29,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:29,564 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 03:48:29,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:48:29,564 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:29,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:29,564 INFO L85 PathProgramCache]: Analyzing trace with hash -186609517, now seen corresponding path program 1 times [2024-11-07 03:48:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:29,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013490332] [2024-11-07 03:48:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:29,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:29,983 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 03:48:29,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:29,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013490332] [2024-11-07 03:48:29,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013490332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:29,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:29,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:48:29,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174289229] [2024-11-07 03:48:29,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:29,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:29,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:29,985 INFO L87 Difference]: Start difference. First operand 679 states and 1012 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 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 03:48:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:30,138 INFO L93 Difference]: Finished difference Result 1374 states and 2046 transitions. [2024-11-07 03:48:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:30,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 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 03:48:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:30,141 INFO L225 Difference]: With dead ends: 1374 [2024-11-07 03:48:30,142 INFO L226 Difference]: Without dead ends: 779 [2024-11-07 03:48:30,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:48:30,144 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 224 mSDsluCounter, 6575 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 7527 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:30,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 7527 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:30,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-07 03:48:30,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 681. [2024-11-07 03:48:30,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 680 states have (on average 1.4911764705882353) internal successors, (1014), 680 states have internal predecessors, (1014), 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 03:48:30,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1014 transitions. [2024-11-07 03:48:30,165 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1014 transitions. Word has length 54 [2024-11-07 03:48:30,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:30,166 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1014 transitions. [2024-11-07 03:48:30,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 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 03:48:30,166 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1014 transitions. [2024-11-07 03:48:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-07 03:48:30,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:30,170 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] [2024-11-07 03:48:30,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:48:30,171 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:30,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:30,171 INFO L85 PathProgramCache]: Analyzing trace with hash 156684038, now seen corresponding path program 1 times [2024-11-07 03:48:30,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:30,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135008448] [2024-11-07 03:48:30,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:30,358 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 03:48:30,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:30,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135008448] [2024-11-07 03:48:30,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135008448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:30,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:30,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:30,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73064906] [2024-11-07 03:48:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:30,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:30,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:30,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:30,362 INFO L87 Difference]: Start difference. First operand 681 states and 1014 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 03:48:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:30,473 INFO L93 Difference]: Finished difference Result 1532 states and 2279 transitions. [2024-11-07 03:48:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2024-11-07 03:48:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:30,476 INFO L225 Difference]: With dead ends: 1532 [2024-11-07 03:48:30,477 INFO L226 Difference]: Without dead ends: 928 [2024-11-07 03:48:30,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:30,480 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 442 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:30,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 5620 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-07 03:48:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 682. [2024-11-07 03:48:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 1.4889867841409692) internal successors, (1014), 681 states have internal predecessors, (1014), 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 03:48:30,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1014 transitions. [2024-11-07 03:48:30,513 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1014 transitions. Word has length 55 [2024-11-07 03:48:30,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:30,513 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1014 transitions. [2024-11-07 03:48:30,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 03:48:30,513 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1014 transitions. [2024-11-07 03:48:30,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 03:48:30,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:30,516 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 03:48:30,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:48:30,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:30,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:30,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1161890658, now seen corresponding path program 1 times [2024-11-07 03:48:30,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:30,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851428631] [2024-11-07 03:48:30,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:30,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:30,890 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 03:48:30,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:30,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851428631] [2024-11-07 03:48:30,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851428631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:30,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:30,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:30,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550411760] [2024-11-07 03:48:30,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:30,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:30,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:30,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:30,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:30,894 INFO L87 Difference]: Start difference. First operand 682 states and 1014 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 03:48:31,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:31,041 INFO L93 Difference]: Finished difference Result 1542 states and 2291 transitions. [2024-11-07 03:48:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:31,042 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 03:48:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:31,047 INFO L225 Difference]: With dead ends: 1542 [2024-11-07 03:48:31,047 INFO L226 Difference]: Without dead ends: 933 [2024-11-07 03:48:31,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:31,052 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 448 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:31,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 5620 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:31,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-07 03:48:31,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 683. [2024-11-07 03:48:31,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 1.4868035190615836) internal successors, (1014), 682 states have internal predecessors, (1014), 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 03:48:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1014 transitions. [2024-11-07 03:48:31,073 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1014 transitions. Word has length 56 [2024-11-07 03:48:31,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:31,075 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1014 transitions. [2024-11-07 03:48:31,077 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 03:48:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1014 transitions. [2024-11-07 03:48:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:31,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:31,078 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 03:48:31,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:48:31,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:31,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1759476385, now seen corresponding path program 1 times [2024-11-07 03:48:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:31,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774901931] [2024-11-07 03:48:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:31,234 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 03:48:31,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:31,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774901931] [2024-11-07 03:48:31,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774901931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:31,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:31,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:31,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132187135] [2024-11-07 03:48:31,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:31,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:31,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:31,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:31,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:31,237 INFO L87 Difference]: Start difference. First operand 683 states and 1014 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 03:48:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:31,309 INFO L93 Difference]: Finished difference Result 1506 states and 2239 transitions. [2024-11-07 03:48:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:31,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 03:48:31,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:31,313 INFO L225 Difference]: With dead ends: 1506 [2024-11-07 03:48:31,313 INFO L226 Difference]: Without dead ends: 897 [2024-11-07 03:48:31,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:31,315 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 407 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:31,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 3740 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:31,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-07 03:48:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 676. [2024-11-07 03:48:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 675 states have (on average 1.4874074074074075) internal successors, (1004), 675 states have internal predecessors, (1004), 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 03:48:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 1004 transitions. [2024-11-07 03:48:31,333 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 1004 transitions. Word has length 57 [2024-11-07 03:48:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:31,333 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 1004 transitions. [2024-11-07 03:48:31,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 03:48:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1004 transitions. [2024-11-07 03:48:31,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-07 03:48:31,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:31,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:31,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:48:31,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:31,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:31,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1826871654, now seen corresponding path program 1 times [2024-11-07 03:48:31,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:31,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448836865] [2024-11-07 03:48:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:33,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:33,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448836865] [2024-11-07 03:48:33,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448836865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:33,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:33,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46636744] [2024-11-07 03:48:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:33,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:33,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:33,123 INFO L87 Difference]: Start difference. First operand 676 states and 1004 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 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 03:48:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:33,172 INFO L93 Difference]: Finished difference Result 1367 states and 2037 transitions. [2024-11-07 03:48:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:33,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 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 349 [2024-11-07 03:48:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:33,178 INFO L225 Difference]: With dead ends: 1367 [2024-11-07 03:48:33,178 INFO L226 Difference]: Without dead ends: 772 [2024-11-07 03:48:33,179 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 03:48:33,179 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 94 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 3831 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:33,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 3831 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-11-07 03:48:33,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 770. [2024-11-07 03:48:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 769 states have (on average 1.4876462938881665) internal successors, (1144), 769 states have internal predecessors, (1144), 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 03:48:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1144 transitions. [2024-11-07 03:48:33,195 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1144 transitions. Word has length 349 [2024-11-07 03:48:33,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:33,195 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 1144 transitions. [2024-11-07 03:48:33,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 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 03:48:33,196 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1144 transitions. [2024-11-07 03:48:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-07 03:48:33,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:33,202 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:33,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 03:48:33,203 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:33,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:33,203 INFO L85 PathProgramCache]: Analyzing trace with hash 71763880, now seen corresponding path program 1 times [2024-11-07 03:48:33,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:33,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800457018] [2024-11-07 03:48:33,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:33,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:35,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:35,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800457018] [2024-11-07 03:48:35,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800457018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:35,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:35,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970827188] [2024-11-07 03:48:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:35,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:35,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:35,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:35,367 INFO L87 Difference]: Start difference. First operand 770 states and 1144 transitions. Second operand has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 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 03:48:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:35,466 INFO L93 Difference]: Finished difference Result 1683 states and 2507 transitions. [2024-11-07 03:48:35,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:35,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 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 350 [2024-11-07 03:48:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:35,470 INFO L225 Difference]: With dead ends: 1683 [2024-11-07 03:48:35,470 INFO L226 Difference]: Without dead ends: 994 [2024-11-07 03:48:35,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:35,473 INFO L432 NwaCegarLoop]: 954 mSDtfsCounter, 408 mSDsluCounter, 4681 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 5635 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:35,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 5635 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-07 03:48:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 787. [2024-11-07 03:48:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.4834605597964376) internal successors, (1166), 786 states have internal predecessors, (1166), 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 03:48:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1166 transitions. [2024-11-07 03:48:35,489 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1166 transitions. Word has length 350 [2024-11-07 03:48:35,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:35,489 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 1166 transitions. [2024-11-07 03:48:35,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.0) internal successors, (350), 7 states have internal predecessors, (350), 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 03:48:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1166 transitions. [2024-11-07 03:48:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-07 03:48:35,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:35,493 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:35,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 03:48:35,494 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:35,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:35,497 INFO L85 PathProgramCache]: Analyzing trace with hash -962093766, now seen corresponding path program 1 times [2024-11-07 03:48:35,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:35,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035725974] [2024-11-07 03:48:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:35,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:36,859 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:36,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:36,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035725974] [2024-11-07 03:48:36,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035725974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:36,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559987431] [2024-11-07 03:48:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:36,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:36,863 INFO L87 Difference]: Start difference. First operand 787 states and 1166 transitions. Second operand has 7 states, 7 states have (on average 50.142857142857146) internal successors, (351), 7 states have internal predecessors, (351), 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 03:48:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:36,976 INFO L93 Difference]: Finished difference Result 1546 states and 2300 transitions. [2024-11-07 03:48:36,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.142857142857146) internal successors, (351), 7 states have internal predecessors, (351), 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 351 [2024-11-07 03:48:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:36,980 INFO L225 Difference]: With dead ends: 1546 [2024-11-07 03:48:36,980 INFO L226 Difference]: Without dead ends: 857 [2024-11-07 03:48:36,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:36,985 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 157 mSDsluCounter, 4701 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 5659 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:36,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 5659 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:36,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-07 03:48:37,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 846. [2024-11-07 03:48:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 1.4828402366863904) internal successors, (1253), 845 states have internal predecessors, (1253), 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 03:48:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1253 transitions. [2024-11-07 03:48:37,006 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1253 transitions. Word has length 351 [2024-11-07 03:48:37,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:37,008 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1253 transitions. [2024-11-07 03:48:37,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.142857142857146) internal successors, (351), 7 states have internal predecessors, (351), 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 03:48:37,009 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1253 transitions. [2024-11-07 03:48:37,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-07 03:48:37,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:37,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:37,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 03:48:37,014 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:37,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1252985421, now seen corresponding path program 1 times [2024-11-07 03:48:37,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:37,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665300075] [2024-11-07 03:48:37,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:37,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:38,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:38,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665300075] [2024-11-07 03:48:38,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665300075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:38,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:38,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263546467] [2024-11-07 03:48:38,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:38,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:38,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:38,740 INFO L87 Difference]: Start difference. First operand 846 states and 1253 transitions. Second operand has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 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 03:48:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:38,792 INFO L93 Difference]: Finished difference Result 1592 states and 2366 transitions. [2024-11-07 03:48:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:38,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 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 352 [2024-11-07 03:48:38,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:38,796 INFO L225 Difference]: With dead ends: 1592 [2024-11-07 03:48:38,796 INFO L226 Difference]: Without dead ends: 903 [2024-11-07 03:48:38,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:38,797 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 58 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:38,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2994 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:38,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-07 03:48:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 876. [2024-11-07 03:48:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 1.48) internal successors, (1295), 875 states have internal predecessors, (1295), 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 03:48:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1295 transitions. [2024-11-07 03:48:38,811 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1295 transitions. Word has length 352 [2024-11-07 03:48:38,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:38,811 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1295 transitions. [2024-11-07 03:48:38,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 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 03:48:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1295 transitions. [2024-11-07 03:48:38,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-07 03:48:38,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:38,816 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:38,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 03:48:38,816 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:38,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1131304194, now seen corresponding path program 1 times [2024-11-07 03:48:38,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:38,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559063339] [2024-11-07 03:48:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:38,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:40,912 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:40,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:40,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559063339] [2024-11-07 03:48:40,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559063339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:40,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:40,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:40,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722123524] [2024-11-07 03:48:40,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:40,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:40,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:40,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:40,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:40,916 INFO L87 Difference]: Start difference. First operand 876 states and 1295 transitions. Second operand has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 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 03:48:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:41,025 INFO L93 Difference]: Finished difference Result 1905 states and 2832 transitions. [2024-11-07 03:48:41,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:41,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 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 353 [2024-11-07 03:48:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:41,031 INFO L225 Difference]: With dead ends: 1905 [2024-11-07 03:48:41,031 INFO L226 Difference]: Without dead ends: 1195 [2024-11-07 03:48:41,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:41,033 INFO L432 NwaCegarLoop]: 955 mSDtfsCounter, 312 mSDsluCounter, 3812 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:41,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 4767 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-07 03:48:41,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 937. [2024-11-07 03:48:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.4797008547008548) internal successors, (1385), 936 states have internal predecessors, (1385), 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 03:48:41,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1385 transitions. [2024-11-07 03:48:41,055 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1385 transitions. Word has length 353 [2024-11-07 03:48:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:41,057 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1385 transitions. [2024-11-07 03:48:41,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 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 03:48:41,057 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1385 transitions. [2024-11-07 03:48:41,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-07 03:48:41,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:41,062 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:41,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 03:48:41,062 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:41,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2135061390, now seen corresponding path program 1 times [2024-11-07 03:48:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:41,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947744924] [2024-11-07 03:48:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:42,966 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:42,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:42,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947744924] [2024-11-07 03:48:42,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947744924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:42,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:42,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:42,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355129189] [2024-11-07 03:48:42,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:42,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:42,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:42,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:42,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:42,970 INFO L87 Difference]: Start difference. First operand 937 states and 1385 transitions. Second operand has 8 states, 8 states have (on average 44.25) internal successors, (354), 8 states have internal predecessors, (354), 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 03:48:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,049 INFO L93 Difference]: Finished difference Result 1931 states and 2865 transitions. [2024-11-07 03:48:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:43,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.25) internal successors, (354), 8 states have internal predecessors, (354), 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 354 [2024-11-07 03:48:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,055 INFO L225 Difference]: With dead ends: 1931 [2024-11-07 03:48:43,055 INFO L226 Difference]: Without dead ends: 1160 [2024-11-07 03:48:43,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:43,057 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 165 mSDsluCounter, 3994 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 4946 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 4946 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-07 03:48:43,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1076. [2024-11-07 03:48:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 1075 states have (on average 1.48) internal successors, (1591), 1075 states have internal predecessors, (1591), 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 03:48:43,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1591 transitions. [2024-11-07 03:48:43,077 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1591 transitions. Word has length 354 [2024-11-07 03:48:43,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,077 INFO L471 AbstractCegarLoop]: Abstraction has 1076 states and 1591 transitions. [2024-11-07 03:48:43,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.25) internal successors, (354), 8 states have internal predecessors, (354), 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 03:48:43,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1591 transitions. [2024-11-07 03:48:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-07 03:48:43,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:43,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 03:48:43,083 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash -887778963, now seen corresponding path program 1 times [2024-11-07 03:48:43,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330765371] [2024-11-07 03:48:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:43,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:43,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330765371] [2024-11-07 03:48:43,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330765371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:43,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:43,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:43,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286871897] [2024-11-07 03:48:43,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:43,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:43,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:43,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:43,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:43,769 INFO L87 Difference]: Start difference. First operand 1076 states and 1591 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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 03:48:43,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,800 INFO L93 Difference]: Finished difference Result 1994 states and 2958 transitions. [2024-11-07 03:48:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:43,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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 355 [2024-11-07 03:48:43,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,804 INFO L225 Difference]: With dead ends: 1994 [2024-11-07 03:48:43,805 INFO L226 Difference]: Without dead ends: 1084 [2024-11-07 03:48:43,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:43,806 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2879 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-11-07 03:48:43,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1084. [2024-11-07 03:48:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1083 states have (on average 1.4764542936288088) internal successors, (1599), 1083 states have internal predecessors, (1599), 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 03:48:43,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1599 transitions. [2024-11-07 03:48:43,830 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1599 transitions. Word has length 355 [2024-11-07 03:48:43,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,833 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1599 transitions. [2024-11-07 03:48:43,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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 03:48:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1599 transitions. [2024-11-07 03:48:43,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-07 03:48:43,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:43,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 03:48:43,838 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1889177997, now seen corresponding path program 1 times [2024-11-07 03:48:43,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435928204] [2024-11-07 03:48:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:46,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:46,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435928204] [2024-11-07 03:48:46,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435928204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:46,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:46,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:46,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752794596] [2024-11-07 03:48:46,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:46,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:46,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:46,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:46,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:46,119 INFO L87 Difference]: Start difference. First operand 1084 states and 1599 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 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 03:48:46,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:46,244 INFO L93 Difference]: Finished difference Result 2165 states and 3201 transitions. [2024-11-07 03:48:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:46,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 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 355 [2024-11-07 03:48:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:46,249 INFO L225 Difference]: With dead ends: 2165 [2024-11-07 03:48:46,249 INFO L226 Difference]: Without dead ends: 1247 [2024-11-07 03:48:46,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:46,252 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 84 mSDsluCounter, 4825 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 5778 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:46,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 5778 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-11-07 03:48:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1198. [2024-11-07 03:48:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 1197 states have (on average 1.4745196324143692) internal successors, (1765), 1197 states have internal predecessors, (1765), 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 03:48:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1765 transitions. [2024-11-07 03:48:46,275 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1765 transitions. Word has length 355 [2024-11-07 03:48:46,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:46,276 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1765 transitions. [2024-11-07 03:48:46,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 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 03:48:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1765 transitions. [2024-11-07 03:48:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-07 03:48:46,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:46,281 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:46,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 03:48:46,281 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:46,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash -626276476, now seen corresponding path program 1 times [2024-11-07 03:48:46,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:46,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4521129] [2024-11-07 03:48:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:47,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4521129] [2024-11-07 03:48:47,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4521129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:47,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643883401] [2024-11-07 03:48:47,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:47,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:47,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:47,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:47,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:47,740 INFO L87 Difference]: Start difference. First operand 1198 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 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 03:48:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:47,789 INFO L93 Difference]: Finished difference Result 2238 states and 3306 transitions. [2024-11-07 03:48:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 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 356 [2024-11-07 03:48:47,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:47,795 INFO L225 Difference]: With dead ends: 2238 [2024-11-07 03:48:47,795 INFO L226 Difference]: Without dead ends: 1206 [2024-11-07 03:48:47,796 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 03:48:47,798 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 6 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3831 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:47,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3831 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:47,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-11-07 03:48:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1204. [2024-11-07 03:48:47,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.4738154613466334) internal successors, (1773), 1203 states have internal predecessors, (1773), 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 03:48:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1773 transitions. [2024-11-07 03:48:47,824 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1773 transitions. Word has length 356 [2024-11-07 03:48:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:47,825 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1773 transitions. [2024-11-07 03:48:47,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 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 03:48:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1773 transitions. [2024-11-07 03:48:47,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-07 03:48:47,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:47,829 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:47,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 03:48:47,829 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:47,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1112121167, now seen corresponding path program 1 times [2024-11-07 03:48:47,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:47,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878060224] [2024-11-07 03:48:47,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:50,244 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:50,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:50,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878060224] [2024-11-07 03:48:50,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878060224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:50,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:50,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:50,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567581021] [2024-11-07 03:48:50,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:50,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:50,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:50,247 INFO L87 Difference]: Start difference. First operand 1204 states and 1773 transitions. Second operand has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 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 03:48:50,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:50,336 INFO L93 Difference]: Finished difference Result 3802 states and 5624 transitions. [2024-11-07 03:48:50,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:50,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 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 357 [2024-11-07 03:48:50,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:50,344 INFO L225 Difference]: With dead ends: 3802 [2024-11-07 03:48:50,344 INFO L226 Difference]: Without dead ends: 2764 [2024-11-07 03:48:50,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:50,345 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 903 mSDsluCounter, 4774 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 5732 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:50,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 5732 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-11-07 03:48:50,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1987. [2024-11-07 03:48:50,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1986 states have (on average 1.4768378650553877) internal successors, (2933), 1986 states have internal predecessors, (2933), 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 03:48:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2933 transitions. [2024-11-07 03:48:50,373 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2933 transitions. Word has length 357 [2024-11-07 03:48:50,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:50,374 INFO L471 AbstractCegarLoop]: Abstraction has 1987 states and 2933 transitions. [2024-11-07 03:48:50,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 7 states have internal predecessors, (357), 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 03:48:50,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2933 transitions. [2024-11-07 03:48:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-07 03:48:50,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:50,377 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:50,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 03:48:50,377 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:50,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:50,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1878802481, now seen corresponding path program 1 times [2024-11-07 03:48:50,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:50,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288012846] [2024-11-07 03:48:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:50,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:52,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:52,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288012846] [2024-11-07 03:48:52,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288012846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:52,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:52,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:48:52,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705796161] [2024-11-07 03:48:52,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:52,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:52,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:52,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:52,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:52,082 INFO L87 Difference]: Start difference. First operand 1987 states and 2933 transitions. Second operand has 9 states, 9 states have (on average 39.77777777777778) internal successors, (358), 9 states have internal predecessors, (358), 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 03:48:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:52,225 INFO L93 Difference]: Finished difference Result 4147 states and 6133 transitions. [2024-11-07 03:48:52,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:52,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.77777777777778) internal successors, (358), 9 states have internal predecessors, (358), 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 358 [2024-11-07 03:48:52,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:52,232 INFO L225 Difference]: With dead ends: 4147 [2024-11-07 03:48:52,232 INFO L226 Difference]: Without dead ends: 2272 [2024-11-07 03:48:52,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:48:52,234 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 409 mSDsluCounter, 6547 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 7495 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:52,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 7495 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:52,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2024-11-07 03:48:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 1992. [2024-11-07 03:48:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1992 states, 1991 states have (on average 1.4756403817177297) internal successors, (2938), 1991 states have internal predecessors, (2938), 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 03:48:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2938 transitions. [2024-11-07 03:48:52,259 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2938 transitions. Word has length 358 [2024-11-07 03:48:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:52,259 INFO L471 AbstractCegarLoop]: Abstraction has 1992 states and 2938 transitions. [2024-11-07 03:48:52,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.77777777777778) internal successors, (358), 9 states have internal predecessors, (358), 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 03:48:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2938 transitions. [2024-11-07 03:48:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-07 03:48:52,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:52,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:52,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 03:48:52,263 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:52,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:52,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2011477215, now seen corresponding path program 1 times [2024-11-07 03:48:52,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:52,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071250978] [2024-11-07 03:48:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:52,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:54,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:54,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071250978] [2024-11-07 03:48:54,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071250978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:54,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:54,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:54,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116585852] [2024-11-07 03:48:54,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:54,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:54,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:54,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:54,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:54,260 INFO L87 Difference]: Start difference. First operand 1992 states and 2938 transitions. Second operand has 8 states, 8 states have (on average 44.875) internal successors, (359), 8 states have internal predecessors, (359), 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 03:48:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:54,385 INFO L93 Difference]: Finished difference Result 3825 states and 5653 transitions. [2024-11-07 03:48:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:54,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.875) internal successors, (359), 8 states have internal predecessors, (359), 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 359 [2024-11-07 03:48:54,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:54,392 INFO L225 Difference]: With dead ends: 3825 [2024-11-07 03:48:54,392 INFO L226 Difference]: Without dead ends: 2004 [2024-11-07 03:48:54,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:54,395 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 922 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 5648 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:54,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 5648 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:54,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2024-11-07 03:48:54,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1998. [2024-11-07 03:48:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1997 states have (on average 1.4752128192288432) internal successors, (2946), 1997 states have internal predecessors, (2946), 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 03:48:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2946 transitions. [2024-11-07 03:48:54,440 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2946 transitions. Word has length 359 [2024-11-07 03:48:54,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:54,440 INFO L471 AbstractCegarLoop]: Abstraction has 1998 states and 2946 transitions. [2024-11-07 03:48:54,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.875) internal successors, (359), 8 states have internal predecessors, (359), 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 03:48:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2946 transitions. [2024-11-07 03:48:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-07 03:48:54,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:54,443 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:54,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 03:48:54,443 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:54,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:54,444 INFO L85 PathProgramCache]: Analyzing trace with hash 879032887, now seen corresponding path program 1 times [2024-11-07 03:48:54,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:54,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362996975] [2024-11-07 03:48:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:54,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:54,962 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:54,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:54,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362996975] [2024-11-07 03:48:54,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362996975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:54,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:54,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:54,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777514883] [2024-11-07 03:48:54,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:54,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:54,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:54,968 INFO L87 Difference]: Start difference. First operand 1998 states and 2946 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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 03:48:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:55,022 INFO L93 Difference]: Finished difference Result 3841 states and 5673 transitions. [2024-11-07 03:48:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:55,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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 359 [2024-11-07 03:48:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:55,031 INFO L225 Difference]: With dead ends: 3841 [2024-11-07 03:48:55,031 INFO L226 Difference]: Without dead ends: 2014 [2024-11-07 03:48:55,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 03:48:55,036 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 3 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:55,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3836 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2024-11-07 03:48:55,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2014. [2024-11-07 03:48:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2014 states, 2013 states have (on average 1.4734227521112766) internal successors, (2966), 2013 states have internal predecessors, (2966), 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 03:48:55,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2014 states to 2014 states and 2966 transitions. [2024-11-07 03:48:55,074 INFO L78 Accepts]: Start accepts. Automaton has 2014 states and 2966 transitions. Word has length 359 [2024-11-07 03:48:55,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:55,074 INFO L471 AbstractCegarLoop]: Abstraction has 2014 states and 2966 transitions. [2024-11-07 03:48:55,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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 03:48:55,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2014 states and 2966 transitions. [2024-11-07 03:48:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-07 03:48:55,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:55,080 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:55,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 03:48:55,080 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:55,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash 500024036, now seen corresponding path program 1 times [2024-11-07 03:48:55,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357925245] [2024-11-07 03:48:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:55,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:57,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:57,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357925245] [2024-11-07 03:48:57,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357925245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:57,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:57,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 03:48:57,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967266561] [2024-11-07 03:48:57,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:57,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 03:48:57,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:57,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 03:48:57,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:57,140 INFO L87 Difference]: Start difference. First operand 2014 states and 2966 transitions. Second operand has 10 states, 10 states have (on average 36.0) internal successors, (360), 10 states have internal predecessors, (360), 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 03:48:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:57,621 INFO L93 Difference]: Finished difference Result 4164 states and 6149 transitions. [2024-11-07 03:48:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 03:48:57,622 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 36.0) internal successors, (360), 10 states have internal predecessors, (360), 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 360 [2024-11-07 03:48:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:57,632 INFO L225 Difference]: With dead ends: 4164 [2024-11-07 03:48:57,635 INFO L226 Difference]: Without dead ends: 2321 [2024-11-07 03:48:57,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:48:57,650 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 626 mSDsluCounter, 5855 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:57,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 6799 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2024-11-07 03:48:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2037. [2024-11-07 03:48:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2036 states have (on average 1.4724950884086443) internal successors, (2998), 2036 states have internal predecessors, (2998), 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 03:48:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2998 transitions. [2024-11-07 03:48:57,685 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2998 transitions. Word has length 360 [2024-11-07 03:48:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:57,686 INFO L471 AbstractCegarLoop]: Abstraction has 2037 states and 2998 transitions. [2024-11-07 03:48:57,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.0) internal successors, (360), 10 states have internal predecessors, (360), 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 03:48:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2998 transitions. [2024-11-07 03:48:57,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-07 03:48:57,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:57,690 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:57,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 03:48:57,691 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:57,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:57,692 INFO L85 PathProgramCache]: Analyzing trace with hash 592250731, now seen corresponding path program 1 times [2024-11-07 03:48:57,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:57,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865519839] [2024-11-07 03:48:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:57,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:58,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:58,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865519839] [2024-11-07 03:48:58,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865519839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:58,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:58,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:58,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633028842] [2024-11-07 03:48:58,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:58,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:58,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:58,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:58,291 INFO L87 Difference]: Start difference. First operand 2037 states and 2998 transitions. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 03:48:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:58,340 INFO L93 Difference]: Finished difference Result 3895 states and 5744 transitions. [2024-11-07 03:48:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 360 [2024-11-07 03:48:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:58,349 INFO L225 Difference]: With dead ends: 3895 [2024-11-07 03:48:58,350 INFO L226 Difference]: Without dead ends: 2044 [2024-11-07 03:48:58,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 03:48:58,356 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 140 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:58,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3754 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2024-11-07 03:48:58,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2044. [2024-11-07 03:48:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2044 states, 2043 states have (on average 1.47136563876652) internal successors, (3006), 2043 states have internal predecessors, (3006), 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 03:48:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 3006 transitions. [2024-11-07 03:48:58,379 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 3006 transitions. Word has length 360 [2024-11-07 03:48:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:58,379 INFO L471 AbstractCegarLoop]: Abstraction has 2044 states and 3006 transitions. [2024-11-07 03:48:58,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 03:48:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 3006 transitions. [2024-11-07 03:48:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-07 03:48:58,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:58,383 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:58,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 03:48:58,384 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:58,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1560099086, now seen corresponding path program 1 times [2024-11-07 03:48:58,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:58,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883999021] [2024-11-07 03:48:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:59,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883999021] [2024-11-07 03:48:59,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883999021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:59,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:59,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:59,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368222086] [2024-11-07 03:48:59,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:59,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:59,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:59,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:59,674 INFO L87 Difference]: Start difference. First operand 2044 states and 3006 transitions. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 03:48:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:59,746 INFO L93 Difference]: Finished difference Result 5505 states and 8126 transitions. [2024-11-07 03:48:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:59,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 360 [2024-11-07 03:48:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:59,757 INFO L225 Difference]: With dead ends: 5505 [2024-11-07 03:48:59,758 INFO L226 Difference]: Without dead ends: 3639 [2024-11-07 03:48:59,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:59,762 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 2394 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:59,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 2868 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2024-11-07 03:48:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 2021. [2024-11-07 03:48:59,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 2020 states have (on average 1.4717821782178218) internal successors, (2973), 2020 states have internal predecessors, (2973), 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 03:48:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2973 transitions. [2024-11-07 03:48:59,809 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2973 transitions. Word has length 360 [2024-11-07 03:48:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:59,809 INFO L471 AbstractCegarLoop]: Abstraction has 2021 states and 2973 transitions. [2024-11-07 03:48:59,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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 03:48:59,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2973 transitions. [2024-11-07 03:48:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-07 03:48:59,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:59,816 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:59,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 03:48:59,816 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:59,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1894101272, now seen corresponding path program 1 times [2024-11-07 03:48:59,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:59,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41118117] [2024-11-07 03:48:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:01,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:01,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41118117] [2024-11-07 03:49:01,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41118117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:01,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:01,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:49:01,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844512706] [2024-11-07 03:49:01,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:01,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:49:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:49:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:49:01,263 INFO L87 Difference]: Start difference. First operand 2021 states and 2973 transitions. Second operand has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 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 03:49:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:01,397 INFO L93 Difference]: Finished difference Result 3870 states and 5706 transitions. [2024-11-07 03:49:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:49:01,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 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 361 [2024-11-07 03:49:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:01,400 INFO L225 Difference]: With dead ends: 3870 [2024-11-07 03:49:01,400 INFO L226 Difference]: Without dead ends: 2027 [2024-11-07 03:49:01,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:49:01,401 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 969 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 5652 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:01,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 5652 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:01,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-07 03:49:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2023. [2024-11-07 03:49:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2022 states have (on average 1.4713155291790307) internal successors, (2975), 2022 states have internal predecessors, (2975), 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 03:49:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2975 transitions. [2024-11-07 03:49:01,414 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2975 transitions. Word has length 361 [2024-11-07 03:49:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:01,414 INFO L471 AbstractCegarLoop]: Abstraction has 2023 states and 2975 transitions. [2024-11-07 03:49:01,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 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 03:49:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2975 transitions. [2024-11-07 03:49:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-07 03:49:01,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:01,418 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:01,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 03:49:01,418 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:01,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:01,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1148973956, now seen corresponding path program 1 times [2024-11-07 03:49:01,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:01,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965660225] [2024-11-07 03:49:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:01,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:02,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:02,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965660225] [2024-11-07 03:49:02,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965660225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:02,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:02,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:49:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594409591] [2024-11-07 03:49:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:02,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:49:02,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:49:02,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:49:02,477 INFO L87 Difference]: Start difference. First operand 2023 states and 2975 transitions. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 03:49:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:02,516 INFO L93 Difference]: Finished difference Result 3880 states and 5720 transitions. [2024-11-07 03:49:02,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:49:02,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 361 [2024-11-07 03:49:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:02,521 INFO L225 Difference]: With dead ends: 3880 [2024-11-07 03:49:02,521 INFO L226 Difference]: Without dead ends: 2035 [2024-11-07 03:49:02,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:49:02,523 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 0 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:02,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2875 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2024-11-07 03:49:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2035. [2024-11-07 03:49:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 2034 states have (on average 1.4695181907571289) internal successors, (2989), 2034 states have internal predecessors, (2989), 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 03:49:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2989 transitions. [2024-11-07 03:49:02,555 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2989 transitions. Word has length 361 [2024-11-07 03:49:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:02,555 INFO L471 AbstractCegarLoop]: Abstraction has 2035 states and 2989 transitions. [2024-11-07 03:49:02,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 03:49:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2989 transitions. [2024-11-07 03:49:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-07 03:49:02,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:02,561 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:02,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 03:49:02,562 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:02,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1993610015, now seen corresponding path program 1 times [2024-11-07 03:49:02,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:02,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834740662] [2024-11-07 03:49:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:02,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:03,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:03,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834740662] [2024-11-07 03:49:03,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834740662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:03,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:03,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:49:03,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843859697] [2024-11-07 03:49:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:03,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:03,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:03,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:03,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:03,285 INFO L87 Difference]: Start difference. First operand 2035 states and 2989 transitions. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 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 03:49:03,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:03,324 INFO L93 Difference]: Finished difference Result 3924 states and 5774 transitions. [2024-11-07 03:49:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:49:03,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 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 361 [2024-11-07 03:49:03,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:03,328 INFO L225 Difference]: With dead ends: 3924 [2024-11-07 03:49:03,328 INFO L226 Difference]: Without dead ends: 2067 [2024-11-07 03:49:03,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 03:49:03,331 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 3 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:03,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3836 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:03,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-11-07 03:49:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 2067. [2024-11-07 03:49:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 2066 states have (on average 1.4661181026137464) internal successors, (3029), 2066 states have internal predecessors, (3029), 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 03:49:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 3029 transitions. [2024-11-07 03:49:03,354 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 3029 transitions. Word has length 361 [2024-11-07 03:49:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:03,354 INFO L471 AbstractCegarLoop]: Abstraction has 2067 states and 3029 transitions. [2024-11-07 03:49:03,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 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 03:49:03,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 3029 transitions. [2024-11-07 03:49:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-07 03:49:03,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:03,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:03,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 03:49:03,361 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:03,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1114578686, now seen corresponding path program 1 times [2024-11-07 03:49:03,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:03,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792017222] [2024-11-07 03:49:03,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:03,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:05,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:05,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792017222] [2024-11-07 03:49:05,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792017222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:05,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:05,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:49:05,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697162126] [2024-11-07 03:49:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:05,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:49:05,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:05,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:49:05,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:49:05,377 INFO L87 Difference]: Start difference. First operand 2067 states and 3029 transitions. Second operand has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 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 03:49:05,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:05,477 INFO L93 Difference]: Finished difference Result 4568 states and 6706 transitions. [2024-11-07 03:49:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:49:05,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 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 362 [2024-11-07 03:49:05,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:05,483 INFO L225 Difference]: With dead ends: 4568 [2024-11-07 03:49:05,483 INFO L226 Difference]: Without dead ends: 2679 [2024-11-07 03:49:05,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:49:05,485 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 120 mSDsluCounter, 6639 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 7590 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:05,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 7590 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2024-11-07 03:49:05,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2667. [2024-11-07 03:49:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 1.4632408102025507) internal successors, (3901), 2666 states have internal predecessors, (3901), 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 03:49:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3901 transitions. [2024-11-07 03:49:05,512 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3901 transitions. Word has length 362 [2024-11-07 03:49:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:05,513 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3901 transitions. [2024-11-07 03:49:05,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.22222222222222) internal successors, (362), 9 states have internal predecessors, (362), 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 03:49:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3901 transitions. [2024-11-07 03:49:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-07 03:49:05,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:05,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:05,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 03:49:05,518 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:05,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:05,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1312437772, now seen corresponding path program 1 times [2024-11-07 03:49:05,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:05,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055723296] [2024-11-07 03:49:05,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:05,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:07,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:07,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055723296] [2024-11-07 03:49:07,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055723296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:07,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:07,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:07,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553244870] [2024-11-07 03:49:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:07,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:07,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:07,824 INFO L87 Difference]: Start difference. First operand 2667 states and 3901 transitions. Second operand has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 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 03:49:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:08,001 INFO L93 Difference]: Finished difference Result 5178 states and 7584 transitions. [2024-11-07 03:49:08,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:49:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 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 363 [2024-11-07 03:49:08,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:08,007 INFO L225 Difference]: With dead ends: 5178 [2024-11-07 03:49:08,007 INFO L226 Difference]: Without dead ends: 2689 [2024-11-07 03:49:08,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:08,010 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 122 mSDsluCounter, 8473 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 9417 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:08,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 9417 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:08,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2024-11-07 03:49:08,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2673. [2024-11-07 03:49:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 1.4629491017964071) internal successors, (3909), 2672 states have internal predecessors, (3909), 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 03:49:08,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3909 transitions. [2024-11-07 03:49:08,038 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3909 transitions. Word has length 363 [2024-11-07 03:49:08,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:08,038 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 3909 transitions. [2024-11-07 03:49:08,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 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 03:49:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3909 transitions. [2024-11-07 03:49:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-07 03:49:08,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:08,042 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:08,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 03:49:08,042 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:08,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1279785818, now seen corresponding path program 1 times [2024-11-07 03:49:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:08,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403361345] [2024-11-07 03:49:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:11,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:11,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403361345] [2024-11-07 03:49:11,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403361345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:11,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:11,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-07 03:49:11,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478435493] [2024-11-07 03:49:11,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:11,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 03:49:11,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:11,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 03:49:11,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2024-11-07 03:49:11,356 INFO L87 Difference]: Start difference. First operand 2673 states and 3909 transitions. Second operand has 18 states, 18 states have (on average 20.166666666666668) internal successors, (363), 18 states have internal predecessors, (363), 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 03:49:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:12,069 INFO L93 Difference]: Finished difference Result 5538 states and 8112 transitions. [2024-11-07 03:49:12,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 03:49:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 20.166666666666668) internal successors, (363), 18 states have internal predecessors, (363), 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 363 [2024-11-07 03:49:12,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:12,078 INFO L225 Difference]: With dead ends: 5538 [2024-11-07 03:49:12,078 INFO L226 Difference]: Without dead ends: 3001 [2024-11-07 03:49:12,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2024-11-07 03:49:12,086 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 677 mSDsluCounter, 11037 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 11958 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:12,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 11958 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:49:12,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2024-11-07 03:49:12,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2752. [2024-11-07 03:49:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2751 states have (on average 1.4609233006179572) internal successors, (4019), 2751 states have internal predecessors, (4019), 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 03:49:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 4019 transitions. [2024-11-07 03:49:12,147 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 4019 transitions. Word has length 363 [2024-11-07 03:49:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:12,147 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 4019 transitions. [2024-11-07 03:49:12,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 20.166666666666668) internal successors, (363), 18 states have internal predecessors, (363), 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 03:49:12,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 4019 transitions. [2024-11-07 03:49:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-07 03:49:12,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:12,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:12,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 03:49:12,156 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:12,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1751935056, now seen corresponding path program 1 times [2024-11-07 03:49:12,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:12,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351819826] [2024-11-07 03:49:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:12,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:14,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:14,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351819826] [2024-11-07 03:49:14,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351819826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:14,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:14,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:49:14,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769508805] [2024-11-07 03:49:14,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:14,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:14,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:14,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:14,166 INFO L87 Difference]: Start difference. First operand 2752 states and 4019 transitions. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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 03:49:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:14,227 INFO L93 Difference]: Finished difference Result 5279 states and 7728 transitions. [2024-11-07 03:49:14,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:49:14,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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 363 [2024-11-07 03:49:14,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:14,232 INFO L225 Difference]: With dead ends: 5279 [2024-11-07 03:49:14,232 INFO L226 Difference]: Without dead ends: 2784 [2024-11-07 03:49:14,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:14,235 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 14 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:14,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2871 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:14,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2024-11-07 03:49:14,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2768. [2024-11-07 03:49:14,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2767 states have (on average 1.4582580411998554) internal successors, (4035), 2767 states have internal predecessors, (4035), 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 03:49:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 4035 transitions. [2024-11-07 03:49:14,259 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 4035 transitions. Word has length 363 [2024-11-07 03:49:14,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:14,259 INFO L471 AbstractCegarLoop]: Abstraction has 2768 states and 4035 transitions. [2024-11-07 03:49:14,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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 03:49:14,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 4035 transitions. [2024-11-07 03:49:14,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-07 03:49:14,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:14,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:14,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 03:49:14,263 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:14,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash -102331257, now seen corresponding path program 1 times [2024-11-07 03:49:14,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:14,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429919287] [2024-11-07 03:49:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:14,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:15,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:15,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429919287] [2024-11-07 03:49:15,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429919287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:15,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:15,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:49:15,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331245032] [2024-11-07 03:49:15,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:15,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:49:15,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:15,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:49:15,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:49:15,497 INFO L87 Difference]: Start difference. First operand 2768 states and 4035 transitions. Second operand has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 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 03:49:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:15,584 INFO L93 Difference]: Finished difference Result 5451 states and 7960 transitions. [2024-11-07 03:49:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:49:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 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 364 [2024-11-07 03:49:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:15,588 INFO L225 Difference]: With dead ends: 5451 [2024-11-07 03:49:15,588 INFO L226 Difference]: Without dead ends: 2940 [2024-11-07 03:49:15,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:49:15,591 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 19 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4787 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:15,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4787 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2024-11-07 03:49:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2912. [2024-11-07 03:49:15,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2911 states have (on average 1.454826520096187) internal successors, (4235), 2911 states have internal predecessors, (4235), 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 03:49:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4235 transitions. [2024-11-07 03:49:15,615 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4235 transitions. Word has length 364 [2024-11-07 03:49:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:15,615 INFO L471 AbstractCegarLoop]: Abstraction has 2912 states and 4235 transitions. [2024-11-07 03:49:15,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 7 states have internal predecessors, (364), 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 03:49:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4235 transitions. [2024-11-07 03:49:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-07 03:49:15,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:15,620 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:15,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 03:49:15,620 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:15,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1695683232, now seen corresponding path program 1 times [2024-11-07 03:49:15,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:15,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864813041] [2024-11-07 03:49:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:15,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:16,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:16,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864813041] [2024-11-07 03:49:16,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864813041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:16,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:16,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:49:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191588731] [2024-11-07 03:49:16,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:16,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:16,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:16,216 INFO L87 Difference]: Start difference. First operand 2912 states and 4235 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 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 03:49:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:16,246 INFO L93 Difference]: Finished difference Result 5583 states and 8136 transitions. [2024-11-07 03:49:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:49:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 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 364 [2024-11-07 03:49:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:16,251 INFO L225 Difference]: With dead ends: 5583 [2024-11-07 03:49:16,251 INFO L226 Difference]: Without dead ends: 2928 [2024-11-07 03:49:16,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:16,254 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:16,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2879 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:16,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2024-11-07 03:49:16,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2928. [2024-11-07 03:49:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2927 states have (on average 1.4523402801503245) internal successors, (4251), 2927 states have internal predecessors, (4251), 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 03:49:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 4251 transitions. [2024-11-07 03:49:16,286 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 4251 transitions. Word has length 364 [2024-11-07 03:49:16,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:16,286 INFO L471 AbstractCegarLoop]: Abstraction has 2928 states and 4251 transitions. [2024-11-07 03:49:16,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 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 03:49:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 4251 transitions. [2024-11-07 03:49:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-07 03:49:16,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:16,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:16,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 03:49:16,291 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:16,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:16,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1370360691, now seen corresponding path program 1 times [2024-11-07 03:49:16,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:16,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295339602] [2024-11-07 03:49:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:16,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:18,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:18,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295339602] [2024-11-07 03:49:18,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295339602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:18,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848979614] [2024-11-07 03:49:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:18,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:18,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:18,381 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 03:49:18,382 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 03:49:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:19,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 2095 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-07 03:49:19,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:20,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:20,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848979614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:20,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:20,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 20 [2024-11-07 03:49:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40647328] [2024-11-07 03:49:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:20,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 03:49:20,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 03:49:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:20,465 INFO L87 Difference]: Start difference. First operand 2928 states and 4251 transitions. Second operand has 13 states, 13 states have (on average 28.076923076923077) internal successors, (365), 13 states have internal predecessors, (365), 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 03:49:20,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:20,636 INFO L93 Difference]: Finished difference Result 8293 states and 12051 transitions. [2024-11-07 03:49:20,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:49:20,637 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 28.076923076923077) internal successors, (365), 13 states have internal predecessors, (365), 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 365 [2024-11-07 03:49:20,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:20,644 INFO L225 Difference]: With dead ends: 8293 [2024-11-07 03:49:20,644 INFO L226 Difference]: Without dead ends: 5538 [2024-11-07 03:49:20,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:20,648 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 489 mSDsluCounter, 7686 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:20,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 8628 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2024-11-07 03:49:20,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5515. [2024-11-07 03:49:20,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5514 states have (on average 1.4521218715995647) internal successors, (8007), 5514 states have internal predecessors, (8007), 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 03:49:20,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 8007 transitions. [2024-11-07 03:49:20,699 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 8007 transitions. Word has length 365 [2024-11-07 03:49:20,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:20,699 INFO L471 AbstractCegarLoop]: Abstraction has 5515 states and 8007 transitions. [2024-11-07 03:49:20,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 28.076923076923077) internal successors, (365), 13 states have internal predecessors, (365), 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 03:49:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 8007 transitions. [2024-11-07 03:49:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-07 03:49:20,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:20,706 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:20,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 03:49:20,911 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,SelfDestructingSolverStorable32 [2024-11-07 03:49:20,911 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:20,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:20,911 INFO L85 PathProgramCache]: Analyzing trace with hash 579173852, now seen corresponding path program 1 times [2024-11-07 03:49:20,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:20,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587913657] [2024-11-07 03:49:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:20,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:22,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:22,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587913657] [2024-11-07 03:49:22,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587913657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:22,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:22,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:22,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749584132] [2024-11-07 03:49:22,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:22,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:22,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:22,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:22,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:22,935 INFO L87 Difference]: Start difference. First operand 5515 states and 8007 transitions. Second operand has 11 states, 11 states have (on average 33.27272727272727) internal successors, (366), 11 states have internal predecessors, (366), 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 03:49:23,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:23,187 INFO L93 Difference]: Finished difference Result 15733 states and 22899 transitions. [2024-11-07 03:49:23,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 03:49:23,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 33.27272727272727) internal successors, (366), 11 states have internal predecessors, (366), 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 366 [2024-11-07 03:49:23,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:23,197 INFO L225 Difference]: With dead ends: 15733 [2024-11-07 03:49:23,197 INFO L226 Difference]: Without dead ends: 10559 [2024-11-07 03:49:23,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-07 03:49:23,203 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 2965 mSDsluCounter, 7568 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 8515 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:23,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 8515 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2024-11-07 03:49:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 5753. [2024-11-07 03:49:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5753 states, 5752 states have (on average 1.4539290681502086) internal successors, (8363), 5752 states have internal predecessors, (8363), 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 03:49:23,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 8363 transitions. [2024-11-07 03:49:23,310 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 8363 transitions. Word has length 366 [2024-11-07 03:49:23,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:23,310 INFO L471 AbstractCegarLoop]: Abstraction has 5753 states and 8363 transitions. [2024-11-07 03:49:23,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 33.27272727272727) internal successors, (366), 11 states have internal predecessors, (366), 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 03:49:23,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 8363 transitions. [2024-11-07 03:49:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-07 03:49:23,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:23,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:23,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 03:49:23,318 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:23,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:23,319 INFO L85 PathProgramCache]: Analyzing trace with hash 57250913, now seen corresponding path program 1 times [2024-11-07 03:49:23,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:23,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782955429] [2024-11-07 03:49:23,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782955429] [2024-11-07 03:49:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782955429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:25,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:25,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 03:49:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908737494] [2024-11-07 03:49:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:25,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 03:49:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 03:49:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:49:25,196 INFO L87 Difference]: Start difference. First operand 5753 states and 8363 transitions. Second operand has 12 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 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 03:49:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:25,406 INFO L93 Difference]: Finished difference Result 16161 states and 23515 transitions. [2024-11-07 03:49:25,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:49:25,406 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 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 367 [2024-11-07 03:49:25,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:25,416 INFO L225 Difference]: With dead ends: 16161 [2024-11-07 03:49:25,416 INFO L226 Difference]: Without dead ends: 10987 [2024-11-07 03:49:25,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-07 03:49:25,423 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 579 mSDsluCounter, 9049 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 9991 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:25,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 9991 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2024-11-07 03:49:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 10983. [2024-11-07 03:49:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10983 states, 10982 states have (on average 1.454288836277545) internal successors, (15971), 10982 states have internal predecessors, (15971), 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 03:49:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10983 states to 10983 states and 15971 transitions. [2024-11-07 03:49:25,507 INFO L78 Accepts]: Start accepts. Automaton has 10983 states and 15971 transitions. Word has length 367 [2024-11-07 03:49:25,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:25,508 INFO L471 AbstractCegarLoop]: Abstraction has 10983 states and 15971 transitions. [2024-11-07 03:49:25,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 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 03:49:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 10983 states and 15971 transitions. [2024-11-07 03:49:25,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:25,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:25,519 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:25,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-07 03:49:25,519 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:25,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:25,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1969801767, now seen corresponding path program 1 times [2024-11-07 03:49:25,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:25,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141314198] [2024-11-07 03:49:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:25,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:27,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:27,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141314198] [2024-11-07 03:49:27,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141314198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:27,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:27,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:49:27,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30491484] [2024-11-07 03:49:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:27,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:49:27,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:27,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:49:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:49:27,479 INFO L87 Difference]: Start difference. First operand 10983 states and 15971 transitions. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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 03:49:27,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:27,571 INFO L93 Difference]: Finished difference Result 26419 states and 38461 transitions. [2024-11-07 03:49:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:49:27,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:27,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:27,590 INFO L225 Difference]: With dead ends: 26419 [2024-11-07 03:49:27,590 INFO L226 Difference]: Without dead ends: 21245 [2024-11-07 03:49:27,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:49:27,599 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 408 mSDsluCounter, 4687 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 5638 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:27,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 5638 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21245 states. [2024-11-07 03:49:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21245 to 21241. [2024-11-07 03:49:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21241 states, 21240 states have (on average 1.45560263653484) internal successors, (30917), 21240 states have internal predecessors, (30917), 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 03:49:27,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21241 states to 21241 states and 30917 transitions. [2024-11-07 03:49:27,768 INFO L78 Accepts]: Start accepts. Automaton has 21241 states and 30917 transitions. Word has length 368 [2024-11-07 03:49:27,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:27,768 INFO L471 AbstractCegarLoop]: Abstraction has 21241 states and 30917 transitions. [2024-11-07 03:49:27,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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 03:49:27,768 INFO L276 IsEmpty]: Start isEmpty. Operand 21241 states and 30917 transitions. [2024-11-07 03:49:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:27,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:27,791 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:27,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-07 03:49:27,791 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:27,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:27,792 INFO L85 PathProgramCache]: Analyzing trace with hash -843302247, now seen corresponding path program 1 times [2024-11-07 03:49:27,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:27,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056228087] [2024-11-07 03:49:27,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:27,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:29,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:29,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056228087] [2024-11-07 03:49:29,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056228087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:29,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344243704] [2024-11-07 03:49:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:29,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:29,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:29,485 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 03:49:29,486 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 03:49:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:30,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 2104 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 03:49:30,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:33,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344243704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:33,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:33,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 19 [2024-11-07 03:49:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857255388] [2024-11-07 03:49:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:33,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 03:49:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 03:49:33,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:49:33,289 INFO L87 Difference]: Start difference. First operand 21241 states and 30917 transitions. Second operand has 12 states, 12 states have (on average 30.666666666666668) internal successors, (368), 12 states have internal predecessors, (368), 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 03:49:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:33,648 INFO L93 Difference]: Finished difference Result 46449 states and 67629 transitions. [2024-11-07 03:49:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:49:33,649 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 30.666666666666668) internal successors, (368), 12 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:33,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:33,679 INFO L225 Difference]: With dead ends: 46449 [2024-11-07 03:49:33,679 INFO L226 Difference]: Without dead ends: 31193 [2024-11-07 03:49:33,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:33,694 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 520 mSDsluCounter, 6766 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 7713 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:33,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 7713 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:33,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31193 states. [2024-11-07 03:49:33,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31193 to 28693. [2024-11-07 03:49:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28693 states, 28692 states have (on average 1.4558413495050886) internal successors, (41771), 28692 states have internal predecessors, (41771), 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 03:49:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28693 states to 28693 states and 41771 transitions. [2024-11-07 03:49:33,933 INFO L78 Accepts]: Start accepts. Automaton has 28693 states and 41771 transitions. Word has length 368 [2024-11-07 03:49:33,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:33,933 INFO L471 AbstractCegarLoop]: Abstraction has 28693 states and 41771 transitions. [2024-11-07 03:49:33,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.666666666666668) internal successors, (368), 12 states have internal predecessors, (368), 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 03:49:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 28693 states and 41771 transitions. [2024-11-07 03:49:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:33,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:33,953 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:33,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 03:49:34,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-07 03:49:34,154 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:34,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:34,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1130961003, now seen corresponding path program 1 times [2024-11-07 03:49:34,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:34,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229219734] [2024-11-07 03:49:34,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:34,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:36,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:36,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229219734] [2024-11-07 03:49:36,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229219734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:36,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:36,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:49:36,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950514516] [2024-11-07 03:49:36,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:36,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:49:36,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:36,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:49:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:49:36,275 INFO L87 Difference]: Start difference. First operand 28693 states and 41771 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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 03:49:36,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:36,476 INFO L93 Difference]: Finished difference Result 68259 states and 99479 transitions. [2024-11-07 03:49:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:49:36,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:36,525 INFO L225 Difference]: With dead ends: 68259 [2024-11-07 03:49:36,525 INFO L226 Difference]: Without dead ends: 44027 [2024-11-07 03:49:36,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:49:36,555 INFO L432 NwaCegarLoop]: 957 mSDtfsCounter, 345 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 4785 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:36,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 4785 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:36,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44027 states. [2024-11-07 03:49:36,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44027 to 28737. [2024-11-07 03:49:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.4551433741648108) internal successors, (41815), 28736 states have internal predecessors, (41815), 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 03:49:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 41815 transitions. [2024-11-07 03:49:36,926 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 41815 transitions. Word has length 368 [2024-11-07 03:49:36,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:36,926 INFO L471 AbstractCegarLoop]: Abstraction has 28737 states and 41815 transitions. [2024-11-07 03:49:36,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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 03:49:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 41815 transitions. [2024-11-07 03:49:36,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:36,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:36,946 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:36,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-07 03:49:36,946 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:36,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2143333355, now seen corresponding path program 1 times [2024-11-07 03:49:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657969757] [2024-11-07 03:49:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:38,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:38,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657969757] [2024-11-07 03:49:38,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657969757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:38,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:38,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:49:38,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57625116] [2024-11-07 03:49:38,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:38,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:49:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:49:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:49:38,197 INFO L87 Difference]: Start difference. First operand 28737 states and 41815 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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 03:49:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:38,373 INFO L93 Difference]: Finished difference Result 53293 states and 77581 transitions. [2024-11-07 03:49:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:49:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:38,409 INFO L225 Difference]: With dead ends: 53293 [2024-11-07 03:49:38,409 INFO L226 Difference]: Without dead ends: 29881 [2024-11-07 03:49:38,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:49:38,434 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 11 mSDsluCounter, 4763 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5719 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:38,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5719 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29881 states. [2024-11-07 03:49:38,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29881 to 29441. [2024-11-07 03:49:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29441 states, 29440 states have (on average 1.453226902173913) internal successors, (42783), 29440 states have internal predecessors, (42783), 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 03:49:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29441 states to 29441 states and 42783 transitions. [2024-11-07 03:49:38,882 INFO L78 Accepts]: Start accepts. Automaton has 29441 states and 42783 transitions. Word has length 368 [2024-11-07 03:49:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:38,882 INFO L471 AbstractCegarLoop]: Abstraction has 29441 states and 42783 transitions. [2024-11-07 03:49:38,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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 03:49:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 29441 states and 42783 transitions. [2024-11-07 03:49:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:38,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:38,905 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:38,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-07 03:49:38,905 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:38,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1821485106, now seen corresponding path program 1 times [2024-11-07 03:49:38,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:38,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638803473] [2024-11-07 03:49:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:38,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:39,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:39,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638803473] [2024-11-07 03:49:39,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638803473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:39,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:39,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:49:39,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286861445] [2024-11-07 03:49:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:39,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:39,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:39,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:39,699 INFO L87 Difference]: Start difference. First operand 29441 states and 42783 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 03:49:39,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:39,841 INFO L93 Difference]: Finished difference Result 53077 states and 77237 transitions. [2024-11-07 03:49:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:49:39,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:39,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:39,883 INFO L225 Difference]: With dead ends: 53077 [2024-11-07 03:49:39,883 INFO L226 Difference]: Without dead ends: 29793 [2024-11-07 03:49:39,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:39,909 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:39,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3836 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:39,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29793 states. [2024-11-07 03:49:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29793 to 29793. [2024-11-07 03:49:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29793 states, 29792 states have (on average 1.4478719119226637) internal successors, (43135), 29792 states have internal predecessors, (43135), 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 03:49:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29793 states to 29793 states and 43135 transitions. [2024-11-07 03:49:40,177 INFO L78 Accepts]: Start accepts. Automaton has 29793 states and 43135 transitions. Word has length 368 [2024-11-07 03:49:40,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:40,177 INFO L471 AbstractCegarLoop]: Abstraction has 29793 states and 43135 transitions. [2024-11-07 03:49:40,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 03:49:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 29793 states and 43135 transitions. [2024-11-07 03:49:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:40,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:40,196 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:40,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-07 03:49:40,197 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:40,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:40,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1928129415, now seen corresponding path program 1 times [2024-11-07 03:49:40,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:40,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423178847] [2024-11-07 03:49:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:40,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:41,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:41,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423178847] [2024-11-07 03:49:41,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423178847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:41,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:41,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:49:41,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707962641] [2024-11-07 03:49:41,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:41,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:41,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:41,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:41,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:41,004 INFO L87 Difference]: Start difference. First operand 29793 states and 43135 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 03:49:41,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:41,142 INFO L93 Difference]: Finished difference Result 56037 states and 81157 transitions. [2024-11-07 03:49:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:49:41,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:41,197 INFO L225 Difference]: With dead ends: 56037 [2024-11-07 03:49:41,198 INFO L226 Difference]: Without dead ends: 30145 [2024-11-07 03:49:41,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:49:41,230 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:41,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3836 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30145 states. [2024-11-07 03:49:41,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30145 to 30145. [2024-11-07 03:49:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30145 states, 30144 states have (on average 1.4426419851380043) internal successors, (43487), 30144 states have internal predecessors, (43487), 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 03:49:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30145 states to 30145 states and 43487 transitions. [2024-11-07 03:49:41,719 INFO L78 Accepts]: Start accepts. Automaton has 30145 states and 43487 transitions. Word has length 368 [2024-11-07 03:49:41,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:41,719 INFO L471 AbstractCegarLoop]: Abstraction has 30145 states and 43487 transitions. [2024-11-07 03:49:41,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 03:49:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 30145 states and 43487 transitions. [2024-11-07 03:49:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:41,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:41,745 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:41,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-07 03:49:41,745 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:41,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:41,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1824970383, now seen corresponding path program 1 times [2024-11-07 03:49:41,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:41,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913836067] [2024-11-07 03:49:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:41,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:42,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:42,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913836067] [2024-11-07 03:49:42,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913836067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:42,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:42,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:49:42,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190217283] [2024-11-07 03:49:42,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:42,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:49:42,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:42,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:49:42,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:49:42,513 INFO L87 Difference]: Start difference. First operand 30145 states and 43487 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 03:49:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:42,633 INFO L93 Difference]: Finished difference Result 57733 states and 83245 transitions. [2024-11-07 03:49:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:49:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 368 [2024-11-07 03:49:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:42,663 INFO L225 Difference]: With dead ends: 57733 [2024-11-07 03:49:42,663 INFO L226 Difference]: Without dead ends: 30321 [2024-11-07 03:49:42,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:49:42,686 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 0 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:42,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2879 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:42,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30321 states. [2024-11-07 03:49:42,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30321 to 30321. [2024-11-07 03:49:42,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30321 states, 30320 states have (on average 1.4400725593667547) internal successors, (43663), 30320 states have internal predecessors, (43663), 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 03:49:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30321 states to 30321 states and 43663 transitions. [2024-11-07 03:49:42,923 INFO L78 Accepts]: Start accepts. Automaton has 30321 states and 43663 transitions. Word has length 368 [2024-11-07 03:49:42,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:42,923 INFO L471 AbstractCegarLoop]: Abstraction has 30321 states and 43663 transitions. [2024-11-07 03:49:42,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 03:49:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 30321 states and 43663 transitions. [2024-11-07 03:49:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-07 03:49:42,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:42,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:42,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-07 03:49:42,941 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:42,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:42,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1285074229, now seen corresponding path program 1 times [2024-11-07 03:49:42,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:42,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146859469] [2024-11-07 03:49:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:42,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat