./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem05_label21.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/eca-rers2012/Problem05_label21.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '005ac8ee8adf903b55f0e01ea009909c55d3e1ff8fa6b791c6d5517728f0aa56'] 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/eca-rers2012/Problem05_label21.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 005ac8ee8adf903b55f0e01ea009909c55d3e1ff8fa6b791c6d5517728f0aa56 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:07:16,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:07:16,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:07:16,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:07:16,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:07:16,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:07:16,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:07:16,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:07:16,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:07:16,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:07:16,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:07:16,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:07:16,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:07:16,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:07:16,212 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:07:16,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:07:16,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:07:16,212 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:07:16,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:07:16,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:07:16,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:07:16,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:07:16,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:07:16,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:07:16,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:07:16,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:07:16,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:07:16,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:07:16,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:07:16,215 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 005ac8ee8adf903b55f0e01ea009909c55d3e1ff8fa6b791c6d5517728f0aa56 [2024-11-06 19:07:16,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:07:16,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:07:16,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:07:16,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:07:16,453 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:07:16,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label21.c [2024-11-06 19:07:17,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:07:18,181 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:07:18,183 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label21.c [2024-11-06 19:07:18,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c4fb8ee7/412604d8567f4b58be03464920dde0b2/FLAG5cbb4abce [2024-11-06 19:07:18,297 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c4fb8ee7/412604d8567f4b58be03464920dde0b2 [2024-11-06 19:07:18,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:07:18,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:07:18,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:07:18,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:07:18,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:07:18,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:07:18" (1/1) ... [2024-11-06 19:07:18,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bd7cf02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:18, skipping insertion in model container [2024-11-06 19:07:18,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:07:18" (1/1) ... [2024-11-06 19:07:18,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:07:19,318 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/eca-rers2012/Problem05_label21.c[378895,378908] [2024-11-06 19:07:19,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:07:19,343 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:07:19,886 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/eca-rers2012/Problem05_label21.c[378895,378908] [2024-11-06 19:07:19,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:07:19,924 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:07:19,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19 WrapperNode [2024-11-06 19:07:19,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:07:19,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:07:19,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:07:19,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:07:19,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:19,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,297 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12354 [2024-11-06 19:07:20,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:07:20,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:07:20,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:07:20,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:07:20,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,501 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]. [2024-11-06 19:07:20,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:07:20,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:07:20,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:07:20,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:07:20,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (1/1) ... [2024-11-06 19:07:20,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:07:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:07:20,815 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) [2024-11-06 19:07:20,818 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 [2024-11-06 19:07:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:07:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:07:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:07:20,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:07:20,901 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:07:20,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:07:27,091 INFO L? ?]: Removed 1656 outVars from TransFormulas that were not future-live. [2024-11-06 19:07:27,091 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:07:27,125 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:07:27,125 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:07:27,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:27 BoogieIcfgContainer [2024-11-06 19:07:27,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:07:27,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:07:27,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:07:27,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:07:27,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:07:18" (1/3) ... [2024-11-06 19:07:27,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7153edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:27, skipping insertion in model container [2024-11-06 19:07:27,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:07:19" (2/3) ... [2024-11-06 19:07:27,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7153edc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:27, skipping insertion in model container [2024-11-06 19:07:27,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:27" (3/3) ... [2024-11-06 19:07:27,132 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label21.c [2024-11-06 19:07:27,142 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:07:27,142 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:07:27,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:07:27,214 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;@73e86ed0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:07:27,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:07:27,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:27,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1668 [2024-11-06 19:07:27,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:07:27,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:07:27,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:07:27,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:07:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1832070081, now seen corresponding path program 1 times [2024-11-06 19:07:27,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:07:27,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197728749] [2024-11-06 19:07:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:07:27,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:07:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:07:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:07:29,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:07:29,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197728749] [2024-11-06 19:07:29,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197728749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:07:29,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:07:29,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:07:29,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594051928] [2024-11-06 19:07:29,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:07:29,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:07:29,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:07:29,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:07:29,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:29,857 INFO L87 Difference]: Start difference. First operand has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 2 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:36,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:07:36,333 INFO L93 Difference]: Finished difference Result 6263 states and 11838 transitions. [2024-11-06 19:07:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:07:36,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 2 states have internal predecessors, (1667), 0 states have call successors, (0), 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 1667 [2024-11-06 19:07:36,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:07:36,374 INFO L225 Difference]: With dead ends: 6263 [2024-11-06 19:07:36,375 INFO L226 Difference]: Without dead ends: 4014 [2024-11-06 19:07:36,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:36,387 INFO L432 NwaCegarLoop]: 1397 mSDtfsCounter, 365 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 2416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 7723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2416 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:07:36,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1623 Invalid, 7723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2416 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-06 19:07:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2024-11-06 19:07:36,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 3931. [2024-11-06 19:07:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3930 states have (on average 1.7063613231552164) internal successors, (6706), 3930 states have internal predecessors, (6706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6706 transitions. [2024-11-06 19:07:36,554 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6706 transitions. Word has length 1667 [2024-11-06 19:07:36,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:07:36,558 INFO L471 AbstractCegarLoop]: Abstraction has 3931 states and 6706 transitions. [2024-11-06 19:07:36,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 2 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:36,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6706 transitions. [2024-11-06 19:07:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1676 [2024-11-06 19:07:36,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:07:36,637 INFO L215 NwaCegarLoop]: trace histogram [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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:07:36,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:07:36,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:07:36,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:07:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1109188687, now seen corresponding path program 1 times [2024-11-06 19:07:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:07:36,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781486221] [2024-11-06 19:07:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:07:36,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:07:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:07:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:07:37,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:07:37,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781486221] [2024-11-06 19:07:37,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781486221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:07:37,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:07:37,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:07:37,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104377534] [2024-11-06 19:07:37,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:07:38,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:07:38,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:07:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:07:38,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:38,003 INFO L87 Difference]: Start difference. First operand 3931 states and 6706 transitions. Second operand has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 2 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:42,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:07:42,933 INFO L93 Difference]: Finished difference Result 11291 states and 19411 transitions. [2024-11-06 19:07:42,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:07:42,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 2 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1675 [2024-11-06 19:07:42,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:07:42,957 INFO L225 Difference]: With dead ends: 11291 [2024-11-06 19:07:42,957 INFO L226 Difference]: Without dead ends: 7362 [2024-11-06 19:07:42,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:42,965 INFO L432 NwaCegarLoop]: 1826 mSDtfsCounter, 2355 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 4839 mSolverCounterSat, 2060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 6899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2060 IncrementalHoareTripleChecker+Valid, 4839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:07:42,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2355 Valid, 2022 Invalid, 6899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2060 Valid, 4839 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-06 19:07:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7362 states. [2024-11-06 19:07:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7362 to 7361. [2024-11-06 19:07:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 1.5313858695652174) internal successors, (11271), 7360 states have internal predecessors, (11271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 11271 transitions. [2024-11-06 19:07:43,069 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 11271 transitions. Word has length 1675 [2024-11-06 19:07:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:07:43,069 INFO L471 AbstractCegarLoop]: Abstraction has 7361 states and 11271 transitions. [2024-11-06 19:07:43,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 2 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:43,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 11271 transitions. [2024-11-06 19:07:43,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1696 [2024-11-06 19:07:43,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:07:43,092 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:07:43,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:07:43,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:07:43,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:07:43,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1214313329, now seen corresponding path program 1 times [2024-11-06 19:07:43,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:07:43,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656137411] [2024-11-06 19:07:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:07:43,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:07:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:07:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:07:44,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:07:44,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656137411] [2024-11-06 19:07:44,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656137411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:07:44,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:07:44,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:07:44,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938652084] [2024-11-06 19:07:44,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:07:44,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:07:44,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:07:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:07:44,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:44,642 INFO L87 Difference]: Start difference. First operand 7361 states and 11271 transitions. Second operand has 3 states, 3 states have (on average 565.0) internal successors, (1695), 2 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:07:48,938 INFO L93 Difference]: Finished difference Result 18117 states and 27085 transitions. [2024-11-06 19:07:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:07:48,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 565.0) internal successors, (1695), 2 states have internal predecessors, (1695), 0 states have call successors, (0), 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 1695 [2024-11-06 19:07:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:07:48,971 INFO L225 Difference]: With dead ends: 18117 [2024-11-06 19:07:48,971 INFO L226 Difference]: Without dead ends: 10758 [2024-11-06 19:07:48,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:48,988 INFO L432 NwaCegarLoop]: 1078 mSDtfsCounter, 3171 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 1208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 5981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:07:48,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 1164 Invalid, 5981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1208 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-06 19:07:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10758 states. [2024-11-06 19:07:49,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10758 to 10758. [2024-11-06 19:07:49,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10758 states, 10757 states have (on average 1.3355954262340801) internal successors, (14367), 10757 states have internal predecessors, (14367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10758 states to 10758 states and 14367 transitions. [2024-11-06 19:07:49,191 INFO L78 Accepts]: Start accepts. Automaton has 10758 states and 14367 transitions. Word has length 1695 [2024-11-06 19:07:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:07:49,192 INFO L471 AbstractCegarLoop]: Abstraction has 10758 states and 14367 transitions. [2024-11-06 19:07:49,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.0) internal successors, (1695), 2 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 10758 states and 14367 transitions. [2024-11-06 19:07:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1704 [2024-11-06 19:07:49,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:07:49,250 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:07:49,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:07:49,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:07:49,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:07:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1413294122, now seen corresponding path program 1 times [2024-11-06 19:07:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:07:49,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438591178] [2024-11-06 19:07:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:07:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:07:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:07:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:07:50,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:07:50,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438591178] [2024-11-06 19:07:50,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438591178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:07:50,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:07:50,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:07:50,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042582060] [2024-11-06 19:07:50,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:07:50,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:07:50,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:07:50,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:07:50,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:50,155 INFO L87 Difference]: Start difference. First operand 10758 states and 14367 transitions. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 2 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:07:54,571 INFO L93 Difference]: Finished difference Result 31738 states and 42394 transitions. [2024-11-06 19:07:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:07:54,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 2 states have internal predecessors, (1703), 0 states have call successors, (0), 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 1703 [2024-11-06 19:07:54,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:07:54,634 INFO L225 Difference]: With dead ends: 31738 [2024-11-06 19:07:54,638 INFO L226 Difference]: Without dead ends: 20982 [2024-11-06 19:07:54,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:54,662 INFO L432 NwaCegarLoop]: 1241 mSDtfsCounter, 2223 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4946 mSolverCounterSat, 2574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 7520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 4946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:07:54,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 1390 Invalid, 7520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2574 Valid, 4946 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-06 19:07:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20982 states. [2024-11-06 19:07:55,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20982 to 20965. [2024-11-06 19:07:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20965 states, 20964 states have (on average 1.2765216561724861) internal successors, (26761), 20964 states have internal predecessors, (26761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20965 states to 20965 states and 26761 transitions. [2024-11-06 19:07:55,201 INFO L78 Accepts]: Start accepts. Automaton has 20965 states and 26761 transitions. Word has length 1703 [2024-11-06 19:07:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:07:55,203 INFO L471 AbstractCegarLoop]: Abstraction has 20965 states and 26761 transitions. [2024-11-06 19:07:55,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 2 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:07:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 20965 states and 26761 transitions. [2024-11-06 19:07:55,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1777 [2024-11-06 19:07:55,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:07:55,270 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:07:55,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:07:55,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:07:55,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:07:55,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2044567217, now seen corresponding path program 1 times [2024-11-06 19:07:55,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:07:55,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444328162] [2024-11-06 19:07:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:07:55,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:07:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:07:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-06 19:07:57,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:07:57,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444328162] [2024-11-06 19:07:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444328162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:07:57,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:07:57,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:07:57,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976050556] [2024-11-06 19:07:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:07:57,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:07:57,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:07:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:07:57,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:07:57,011 INFO L87 Difference]: Start difference. First operand 20965 states and 26761 transitions. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 2 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:08:01,894 INFO L93 Difference]: Finished difference Result 62316 states and 79527 transitions. [2024-11-06 19:08:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:08:01,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 2 states have internal predecessors, (1669), 0 states have call successors, (0), 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 1776 [2024-11-06 19:08:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:08:01,962 INFO L225 Difference]: With dead ends: 62316 [2024-11-06 19:08:01,962 INFO L226 Difference]: Without dead ends: 41353 [2024-11-06 19:08:01,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:01,987 INFO L432 NwaCegarLoop]: 1954 mSDtfsCounter, 208 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 5723 mSolverCounterSat, 1400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 7123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1400 IncrementalHoareTripleChecker+Valid, 5723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:08:01,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 2250 Invalid, 7123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1400 Valid, 5723 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-06 19:08:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41353 states. [2024-11-06 19:08:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41353 to 41345. [2024-11-06 19:08:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41345 states, 41344 states have (on average 1.1928212074303406) internal successors, (49316), 41344 states have internal predecessors, (49316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41345 states to 41345 states and 49316 transitions. [2024-11-06 19:08:02,431 INFO L78 Accepts]: Start accepts. Automaton has 41345 states and 49316 transitions. Word has length 1776 [2024-11-06 19:08:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:08:02,433 INFO L471 AbstractCegarLoop]: Abstraction has 41345 states and 49316 transitions. [2024-11-06 19:08:02,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 2 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 41345 states and 49316 transitions. [2024-11-06 19:08:02,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1879 [2024-11-06 19:08:02,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:08:02,492 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:08:02,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:08:02,493 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:08:02,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:08:02,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1918512, now seen corresponding path program 1 times [2024-11-06 19:08:02,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:08:02,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169814162] [2024-11-06 19:08:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:08:02,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:08:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:08:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-06 19:08:03,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:08:03,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169814162] [2024-11-06 19:08:03,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169814162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:08:03,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:08:03,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:08:03,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475405862] [2024-11-06 19:08:03,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:08:03,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:08:03,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:08:03,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:08:03,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:03,268 INFO L87 Difference]: Start difference. First operand 41345 states and 49316 transitions. Second operand has 3 states, 3 states have (on average 592.0) internal successors, (1776), 2 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:08,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:08:08,136 INFO L93 Difference]: Finished difference Result 121747 states and 145212 transitions. [2024-11-06 19:08:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:08:08,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 592.0) internal successors, (1776), 2 states have internal predecessors, (1776), 0 states have call successors, (0), 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 1878 [2024-11-06 19:08:08,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:08:08,285 INFO L225 Difference]: With dead ends: 121747 [2024-11-06 19:08:08,286 INFO L226 Difference]: Without dead ends: 80404 [2024-11-06 19:08:08,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:08,308 INFO L432 NwaCegarLoop]: 1666 mSDtfsCounter, 2449 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4487 mSolverCounterSat, 2361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 6848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2361 IncrementalHoareTripleChecker+Valid, 4487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:08:08,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 1804 Invalid, 6848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2361 Valid, 4487 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-06 19:08:08,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80404 states. [2024-11-06 19:08:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80404 to 73600. [2024-11-06 19:08:08,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73600 states, 73599 states have (on average 1.1479503797605946) internal successors, (84488), 73599 states have internal predecessors, (84488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73600 states to 73600 states and 84488 transitions. [2024-11-06 19:08:08,854 INFO L78 Accepts]: Start accepts. Automaton has 73600 states and 84488 transitions. Word has length 1878 [2024-11-06 19:08:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:08:08,855 INFO L471 AbstractCegarLoop]: Abstraction has 73600 states and 84488 transitions. [2024-11-06 19:08:08,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.0) internal successors, (1776), 2 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 73600 states and 84488 transitions. [2024-11-06 19:08:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1895 [2024-11-06 19:08:08,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:08:08,920 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:08:08,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:08:08,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:08:08,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:08:08,922 INFO L85 PathProgramCache]: Analyzing trace with hash 500852841, now seen corresponding path program 1 times [2024-11-06 19:08:08,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:08:08,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799898872] [2024-11-06 19:08:08,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:08:08,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:08:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:08:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-06 19:08:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:08:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799898872] [2024-11-06 19:08:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799898872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:08:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:08:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:08:09,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016530266] [2024-11-06 19:08:09,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:08:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:08:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:08:09,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:08:09,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:09,767 INFO L87 Difference]: Start difference. First operand 73600 states and 84488 transitions. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:08:15,073 INFO L93 Difference]: Finished difference Result 186261 states and 215782 transitions. [2024-11-06 19:08:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:08:15,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 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 1894 [2024-11-06 19:08:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:08:15,198 INFO L225 Difference]: With dead ends: 186261 [2024-11-06 19:08:15,198 INFO L226 Difference]: Without dead ends: 112663 [2024-11-06 19:08:15,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:15,238 INFO L432 NwaCegarLoop]: 3606 mSDtfsCounter, 2070 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 4777 mSolverCounterSat, 2201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 6978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2201 IncrementalHoareTripleChecker+Valid, 4777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:08:15,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 3841 Invalid, 6978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2201 Valid, 4777 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-06 19:08:15,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112663 states. [2024-11-06 19:08:15,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112663 to 110957. [2024-11-06 19:08:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110957 states, 110956 states have (on average 1.1215346623886946) internal successors, (124441), 110956 states have internal predecessors, (124441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110957 states to 110957 states and 124441 transitions. [2024-11-06 19:08:16,409 INFO L78 Accepts]: Start accepts. Automaton has 110957 states and 124441 transitions. Word has length 1894 [2024-11-06 19:08:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:08:16,410 INFO L471 AbstractCegarLoop]: Abstraction has 110957 states and 124441 transitions. [2024-11-06 19:08:16,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:16,411 INFO L276 IsEmpty]: Start isEmpty. Operand 110957 states and 124441 transitions. [2024-11-06 19:08:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2024 [2024-11-06 19:08:16,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:08:16,724 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:08:16,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:08:16,725 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:08:16,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:08:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1429867143, now seen corresponding path program 1 times [2024-11-06 19:08:16,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:08:16,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618816864] [2024-11-06 19:08:16,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:08:16,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:08:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:08:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-06 19:08:18,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:08:18,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618816864] [2024-11-06 19:08:18,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618816864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:08:18,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:08:18,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:08:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491294606] [2024-11-06 19:08:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:08:18,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:08:18,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:08:18,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:08:18,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:18,238 INFO L87 Difference]: Start difference. First operand 110957 states and 124441 transitions. Second operand has 3 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:24,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:08:24,354 INFO L93 Difference]: Finished difference Result 267836 states and 301561 transitions. [2024-11-06 19:08:24,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:08:24,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 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 2023 [2024-11-06 19:08:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:08:24,578 INFO L225 Difference]: With dead ends: 267836 [2024-11-06 19:08:24,579 INFO L226 Difference]: Without dead ends: 155176 [2024-11-06 19:08:24,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:24,615 INFO L432 NwaCegarLoop]: 3963 mSDtfsCounter, 1760 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 6279 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 7524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 6279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:08:24,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 4183 Invalid, 7524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 6279 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-06 19:08:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155176 states. [2024-11-06 19:08:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155176 to 155106. [2024-11-06 19:08:25,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155106 states, 155105 states have (on average 1.1023177847264756) internal successors, (170975), 155105 states have internal predecessors, (170975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:26,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155106 states to 155106 states and 170975 transitions. [2024-11-06 19:08:26,113 INFO L78 Accepts]: Start accepts. Automaton has 155106 states and 170975 transitions. Word has length 2023 [2024-11-06 19:08:26,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:08:26,114 INFO L471 AbstractCegarLoop]: Abstraction has 155106 states and 170975 transitions. [2024-11-06 19:08:26,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 155106 states and 170975 transitions. [2024-11-06 19:08:26,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2078 [2024-11-06 19:08:26,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:08:26,455 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:08:26,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:08:26,456 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:08:26,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:08:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -434789856, now seen corresponding path program 1 times [2024-11-06 19:08:26,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:08:26,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489494701] [2024-11-06 19:08:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:08:26,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:08:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:08:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 697 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-06 19:08:27,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:08:27,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489494701] [2024-11-06 19:08:27,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489494701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:08:27,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:08:27,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:08:27,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198686197] [2024-11-06 19:08:27,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:08:27,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:08:27,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:08:27,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:08:27,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:27,593 INFO L87 Difference]: Start difference. First operand 155106 states and 170975 transitions. Second operand has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:08:33,116 INFO L93 Difference]: Finished difference Result 374756 states and 411885 transitions. [2024-11-06 19:08:33,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:08:33,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 0 states have call successors, (0), 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 2077 [2024-11-06 19:08:33,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:08:33,358 INFO L225 Difference]: With dead ends: 374756 [2024-11-06 19:08:33,359 INFO L226 Difference]: Without dead ends: 219651 [2024-11-06 19:08:33,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:33,407 INFO L432 NwaCegarLoop]: 1406 mSDtfsCounter, 1903 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 5718 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 6988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 5718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:08:33,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 1564 Invalid, 6988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1270 Valid, 5718 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-06 19:08:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219651 states. [2024-11-06 19:08:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219651 to 212832. [2024-11-06 19:08:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212832 states, 212831 states have (on average 1.073119047507177) internal successors, (228393), 212831 states have internal predecessors, (228393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:35,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212832 states to 212832 states and 228393 transitions. [2024-11-06 19:08:35,433 INFO L78 Accepts]: Start accepts. Automaton has 212832 states and 228393 transitions. Word has length 2077 [2024-11-06 19:08:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:08:35,433 INFO L471 AbstractCegarLoop]: Abstraction has 212832 states and 228393 transitions. [2024-11-06 19:08:35,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 212832 states and 228393 transitions. [2024-11-06 19:08:35,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2095 [2024-11-06 19:08:35,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:08:35,962 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:08:35,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:08:35,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:08:35,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:08:35,963 INFO L85 PathProgramCache]: Analyzing trace with hash 560593379, now seen corresponding path program 1 times [2024-11-06 19:08:35,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:08:35,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162435082] [2024-11-06 19:08:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:08:35,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:08:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:08:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 533 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:08:37,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:08:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162435082] [2024-11-06 19:08:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162435082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:08:37,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:08:37,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:08:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378465742] [2024-11-06 19:08:37,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:08:37,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:08:37,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:08:37,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:08:37,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:37,653 INFO L87 Difference]: Start difference. First operand 212832 states and 228393 transitions. Second operand has 3 states, 3 states have (on average 698.0) internal successors, (2094), 3 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:08:43,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:08:43,907 INFO L93 Difference]: Finished difference Result 486807 states and 522721 transitions. [2024-11-06 19:08:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:08:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 698.0) internal successors, (2094), 3 states have internal predecessors, (2094), 0 states have call successors, (0), 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 2094 [2024-11-06 19:08:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:08:44,233 INFO L225 Difference]: With dead ends: 486807 [2024-11-06 19:08:44,233 INFO L226 Difference]: Without dead ends: 273977 [2024-11-06 19:08:44,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:08:44,300 INFO L432 NwaCegarLoop]: 3755 mSDtfsCounter, 1491 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 5635 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 6533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 5635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:08:44,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 4013 Invalid, 6533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 5635 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-06 19:08:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273977 states.