./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label53.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/Problem14_label53.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', 'f09951f8169d75602552a0c69d410baacae8493e4742c50eb18d4008647dffd9'] 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/Problem14_label53.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 f09951f8169d75602552a0c69d410baacae8493e4742c50eb18d4008647dffd9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:54:25,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:54:25,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:54:25,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:54:25,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:54:25,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:54:25,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:54:25,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:54:25,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:54:25,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:54:25,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:54:25,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:54:25,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:54:25,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:54:25,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:54:25,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:54:25,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:54:25,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:54:25,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:54:25,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:54:25,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:54:25,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:54:25,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:54:25,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:54:25,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:54:25,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:54:25,287 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 -> f09951f8169d75602552a0c69d410baacae8493e4742c50eb18d4008647dffd9 [2024-11-06 19:54:25,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:54:25,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:54:25,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:54:25,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:54:25,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:54:25,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2024-11-06 19:54:26,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:54:27,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:54:27,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2024-11-06 19:54:27,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93b75d8ac/1facb108aa9b4f1daa08f6c647330e15/FLAGcc0fce832 [2024-11-06 19:54:27,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/93b75d8ac/1facb108aa9b4f1daa08f6c647330e15 [2024-11-06 19:54:27,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:54:27,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:54:27,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:54:27,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:54:27,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:54:27,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12de3e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27, skipping insertion in model container [2024-11-06 19:54:27,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:54:27,427 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/Problem14_label53.c[5103,5116] [2024-11-06 19:54:27,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:54:27,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:54:27,604 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/Problem14_label53.c[5103,5116] [2024-11-06 19:54:27,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:54:27,714 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:54:27,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27 WrapperNode [2024-11-06 19:54:27,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:54:27,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:54:27,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:54:27,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:54:27,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,823 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-11-06 19:54:27,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:54:27,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:54:27,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:54:27,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:54:27,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,873 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 19:54:27,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:54:27,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:54:27,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:54:27,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:54:27,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (1/1) ... [2024-11-06 19:54:27,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:54:27,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:27,974 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 19:54:27,977 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 19:54:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:54:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:54:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:54:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:54:28,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:54:28,066 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:54:29,503 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-06 19:54:29,503 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:54:29,522 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:54:29,524 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:54:29,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:54:29 BoogieIcfgContainer [2024-11-06 19:54:29,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:54:29,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:54:29,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:54:29,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:54:29,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:54:27" (1/3) ... [2024-11-06 19:54:29,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328e7845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:54:29, skipping insertion in model container [2024-11-06 19:54:29,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:27" (2/3) ... [2024-11-06 19:54:29,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328e7845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:54:29, skipping insertion in model container [2024-11-06 19:54:29,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:54:29" (3/3) ... [2024-11-06 19:54:29,536 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label53.c [2024-11-06 19:54:29,551 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:54:29,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:54:29,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:54:29,626 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;@78c798ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:54:29,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:54:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 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 19:54:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-06 19:54:29,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:29,642 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] [2024-11-06 19:54:29,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:29,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times [2024-11-06 19:54:29,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:29,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732074221] [2024-11-06 19:54:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:29,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:30,116 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 19:54:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732074221] [2024-11-06 19:54:30,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732074221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:30,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:30,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:30,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833696627] [2024-11-06 19:54:30,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:30,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:30,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:30,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:30,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:30,153 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 19:54:31,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:31,748 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2024-11-06 19:54:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:31,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-06 19:54:31,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:31,765 INFO L225 Difference]: With dead ends: 852 [2024-11-06 19:54:31,766 INFO L226 Difference]: Without dead ends: 538 [2024-11-06 19:54:31,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:31,772 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 536 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:31,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 44 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:54:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-06 19:54:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-06 19:54:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 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 19:54:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2024-11-06 19:54:31,842 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 49 [2024-11-06 19:54:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:31,843 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2024-11-06 19:54:31,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 19:54:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2024-11-06 19:54:31,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-06 19:54:31,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:31,848 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, 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] [2024-11-06 19:54:31,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:54:31,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:31,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:31,849 INFO L85 PathProgramCache]: Analyzing trace with hash -265131167, now seen corresponding path program 1 times [2024-11-06 19:54:31,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:31,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7132816] [2024-11-06 19:54:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:31,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:32,227 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-06 19:54:32,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:32,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7132816] [2024-11-06 19:54:32,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7132816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:32,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:32,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:54:32,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570252571] [2024-11-06 19:54:32,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:32,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:32,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:32,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:32,230 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 19:54:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:32,866 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2024-11-06 19:54:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 197 [2024-11-06 19:54:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:32,870 INFO L225 Difference]: With dead ends: 1074 [2024-11-06 19:54:32,871 INFO L226 Difference]: Without dead ends: 716 [2024-11-06 19:54:32,872 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 19:54:32,873 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:32,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-06 19:54:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2024-11-06 19:54:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 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 19:54:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2024-11-06 19:54:32,901 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 197 [2024-11-06 19:54:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:32,902 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2024-11-06 19:54:32,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 19:54:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2024-11-06 19:54:32,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-06 19:54:32,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:32,909 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:54:32,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:54:32,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:32,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1568066862, now seen corresponding path program 1 times [2024-11-06 19:54:32,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847206622] [2024-11-06 19:54:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:33,315 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-06 19:54:33,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:33,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847206622] [2024-11-06 19:54:33,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847206622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:33,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:33,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:33,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658150473] [2024-11-06 19:54:33,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:33,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:33,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:33,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:33,318 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 19:54:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:34,125 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2024-11-06 19:54:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:34,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 220 [2024-11-06 19:54:34,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:34,132 INFO L225 Difference]: With dead ends: 1637 [2024-11-06 19:54:34,132 INFO L226 Difference]: Without dead ends: 1072 [2024-11-06 19:54:34,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:34,134 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 101 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:34,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 114 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:54:34,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-06 19:54:34,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2024-11-06 19:54:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 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 19:54:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2024-11-06 19:54:34,162 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 220 [2024-11-06 19:54:34,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:34,163 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2024-11-06 19:54:34,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 19:54:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2024-11-06 19:54:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-06 19:54:34,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:34,168 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:34,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:54:34,168 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:34,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash 555922922, now seen corresponding path program 1 times [2024-11-06 19:54:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:34,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729369417] [2024-11-06 19:54:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:34,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 204 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-06 19:54:35,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:35,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729369417] [2024-11-06 19:54:35,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729369417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:35,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754027343] [2024-11-06 19:54:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:35,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:35,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:35,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:54:35,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 19:54:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:35,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:35,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-06 19:54:35,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754027343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:35,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 19:54:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898575212] [2024-11-06 19:54:35,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:35,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:35,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:35,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:35,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:35,334 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 19:54:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:35,925 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2024-11-06 19:54:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2024-11-06 19:54:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:35,937 INFO L225 Difference]: With dead ends: 2320 [2024-11-06 19:54:35,937 INFO L226 Difference]: Without dead ends: 1606 [2024-11-06 19:54:35,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:35,942 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 132 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:35,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-11-06 19:54:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2024-11-06 19:54:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 0 states have call successors, (0), 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 19:54:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2024-11-06 19:54:35,979 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 351 [2024-11-06 19:54:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:35,980 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2024-11-06 19:54:35,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 19:54:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2024-11-06 19:54:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-06 19:54:35,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:35,990 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:36,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 19:54:36,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:36,195 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:36,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:36,196 INFO L85 PathProgramCache]: Analyzing trace with hash 303978021, now seen corresponding path program 1 times [2024-11-06 19:54:36,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:36,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472153938] [2024-11-06 19:54:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-06 19:54:36,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472153938] [2024-11-06 19:54:36,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472153938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:36,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:36,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:36,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274854857] [2024-11-06 19:54:36,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:36,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:36,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:36,767 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 19:54:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:37,368 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2024-11-06 19:54:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 450 [2024-11-06 19:54:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:37,377 INFO L225 Difference]: With dead ends: 3210 [2024-11-06 19:54:37,377 INFO L226 Difference]: Without dead ends: 1962 [2024-11-06 19:54:37,379 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 19:54:37,380 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:37,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-06 19:54:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2024-11-06 19:54:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 0 states have call successors, (0), 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 19:54:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2024-11-06 19:54:37,416 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 450 [2024-11-06 19:54:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:37,417 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2024-11-06 19:54:37,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 19:54:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2024-11-06 19:54:37,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-06 19:54:37,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:37,425 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, 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, 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, 1, 1, 1, 1, 1, 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 19:54:37,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:54:37,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:37,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:37,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1651652833, now seen corresponding path program 1 times [2024-11-06 19:54:37,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:37,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471636875] [2024-11-06 19:54:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:37,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-06 19:54:37,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:37,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471636875] [2024-11-06 19:54:37,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471636875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:37,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:37,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:37,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946750997] [2024-11-06 19:54:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:37,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:37,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:37,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:37,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:37,979 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 19:54:38,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:38,812 INFO L93 Difference]: Finished difference Result 3744 states and 4238 transitions. [2024-11-06 19:54:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:38,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 474 [2024-11-06 19:54:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:38,823 INFO L225 Difference]: With dead ends: 3744 [2024-11-06 19:54:38,823 INFO L226 Difference]: Without dead ends: 2140 [2024-11-06 19:54:38,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:38,827 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:38,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 90 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:54:38,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-11-06 19:54:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2024-11-06 19:54:38,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.11781206171108) internal successors, (2391), 2139 states have internal predecessors, (2391), 0 states have call successors, (0), 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 19:54:38,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2391 transitions. [2024-11-06 19:54:38,870 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2391 transitions. Word has length 474 [2024-11-06 19:54:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:38,870 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2391 transitions. [2024-11-06 19:54:38,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 19:54:38,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2391 transitions. [2024-11-06 19:54:38,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-06 19:54:38,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:38,880 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:38,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:54:38,880 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:38,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1089264344, now seen corresponding path program 1 times [2024-11-06 19:54:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:38,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920682078] [2024-11-06 19:54:38,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:38,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-06 19:54:39,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:39,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920682078] [2024-11-06 19:54:39,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920682078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:39,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:39,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:39,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230220209] [2024-11-06 19:54:39,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:39,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:39,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:39,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:39,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:39,429 INFO L87 Difference]: Start difference. First operand 2140 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 19:54:40,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:40,077 INFO L93 Difference]: Finished difference Result 4336 states and 4849 transitions. [2024-11-06 19:54:40,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:40,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 530 [2024-11-06 19:54:40,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:40,088 INFO L225 Difference]: With dead ends: 4336 [2024-11-06 19:54:40,088 INFO L226 Difference]: Without dead ends: 2318 [2024-11-06 19:54:40,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:40,092 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:40,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-06 19:54:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2024-11-06 19:54:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0855539971949508) internal successors, (2322), 2139 states have internal predecessors, (2322), 0 states have call successors, (0), 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 19:54:40,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2322 transitions. [2024-11-06 19:54:40,167 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2322 transitions. Word has length 530 [2024-11-06 19:54:40,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:40,168 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2322 transitions. [2024-11-06 19:54:40,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 19:54:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2322 transitions. [2024-11-06 19:54:40,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-11-06 19:54:40,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:40,173 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:40,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:54:40,173 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:40,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:40,174 INFO L85 PathProgramCache]: Analyzing trace with hash -970210919, now seen corresponding path program 2 times [2024-11-06 19:54:40,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:40,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986400626] [2024-11-06 19:54:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:40,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 819 proven. 11 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:40,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986400626] [2024-11-06 19:54:40,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986400626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:40,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759347084] [2024-11-06 19:54:40,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 19:54:40,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:40,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:40,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:54:40,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 19:54:40,916 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 19:54:40,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 19:54:40,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:40,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 830 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:41,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759347084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:41,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:41,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:54:41,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319719269] [2024-11-06 19:54:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:41,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:41,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:41,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:41,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:41,785 INFO L87 Difference]: Start difference. First operand 2140 states and 2322 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 19:54:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:42,579 INFO L93 Difference]: Finished difference Result 4990 states and 5475 transitions. [2024-11-06 19:54:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:42,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 556 [2024-11-06 19:54:42,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:42,590 INFO L225 Difference]: With dead ends: 4990 [2024-11-06 19:54:42,591 INFO L226 Difference]: Without dead ends: 3030 [2024-11-06 19:54:42,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:42,594 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 162 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:42,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 15 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:54:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2024-11-06 19:54:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2024-11-06 19:54:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0789579158316633) internal successors, (2692), 2495 states have internal predecessors, (2692), 0 states have call successors, (0), 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 19:54:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2692 transitions. [2024-11-06 19:54:42,639 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2692 transitions. Word has length 556 [2024-11-06 19:54:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:42,639 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2692 transitions. [2024-11-06 19:54:42,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 19:54:42,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2692 transitions. [2024-11-06 19:54:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2024-11-06 19:54:42,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:42,647 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:42,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 19:54:42,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:42,851 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:42,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:42,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1613402830, now seen corresponding path program 1 times [2024-11-06 19:54:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:42,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157426525] [2024-11-06 19:54:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 832 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:43,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:43,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157426525] [2024-11-06 19:54:43,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157426525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:43,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:43,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:43,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450419492] [2024-11-06 19:54:43,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:43,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:43,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:43,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:43,287 INFO L87 Difference]: Start difference. First operand 2496 states and 2692 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 19:54:43,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:43,901 INFO L93 Difference]: Finished difference Result 5702 states and 6216 transitions. [2024-11-06 19:54:43,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:43,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 563 [2024-11-06 19:54:43,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:43,914 INFO L225 Difference]: With dead ends: 5702 [2024-11-06 19:54:43,914 INFO L226 Difference]: Without dead ends: 3386 [2024-11-06 19:54:43,918 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 19:54:43,919 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 73 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:43,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 203 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-06 19:54:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2024-11-06 19:54:43,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0770190208917991) internal successors, (3454), 3207 states have internal predecessors, (3454), 0 states have call successors, (0), 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 19:54:43,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3454 transitions. [2024-11-06 19:54:43,985 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3454 transitions. Word has length 563 [2024-11-06 19:54:43,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:43,986 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3454 transitions. [2024-11-06 19:54:43,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 19:54:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3454 transitions. [2024-11-06 19:54:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2024-11-06 19:54:43,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:43,993 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:43,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:54:43,993 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:43,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1315980517, now seen corresponding path program 1 times [2024-11-06 19:54:43,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:43,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053179595] [2024-11-06 19:54:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 846 proven. 195 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-06 19:54:44,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053179595] [2024-11-06 19:54:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053179595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866245240] [2024-11-06 19:54:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:44,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:44,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:44,749 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:54:44,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 19:54:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:44,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:44,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2024-11-06 19:54:45,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866245240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:45,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:45,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-06 19:54:45,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203671439] [2024-11-06 19:54:45,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:45,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:45,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:45,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:45,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:45,520 INFO L87 Difference]: Start difference. First operand 3208 states and 3454 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 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 19:54:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:46,013 INFO L93 Difference]: Finished difference Result 6948 states and 7481 transitions. [2024-11-06 19:54:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 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 608 [2024-11-06 19:54:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:46,030 INFO L225 Difference]: With dead ends: 6948 [2024-11-06 19:54:46,031 INFO L226 Difference]: Without dead ends: 3920 [2024-11-06 19:54:46,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:46,038 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:46,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:54:46,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-06 19:54:46,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3386. [2024-11-06 19:54:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0782865583456425) internal successors, (3650), 3385 states have internal predecessors, (3650), 0 states have call successors, (0), 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 19:54:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3650 transitions. [2024-11-06 19:54:46,108 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3650 transitions. Word has length 608 [2024-11-06 19:54:46,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:46,109 INFO L471 AbstractCegarLoop]: Abstraction has 3386 states and 3650 transitions. [2024-11-06 19:54:46,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 states have internal predecessors, (247), 0 states have call successors, (0), 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 19:54:46,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3650 transitions. [2024-11-06 19:54:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2024-11-06 19:54:46,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:46,115 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:46,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 19:54:46,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:46,317 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:46,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash 186723207, now seen corresponding path program 1 times [2024-11-06 19:54:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848054687] [2024-11-06 19:54:46,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:46,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 837 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:46,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:46,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848054687] [2024-11-06 19:54:46,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848054687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:46,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:46,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:46,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580607478] [2024-11-06 19:54:46,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:46,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:46,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:46,608 INFO L87 Difference]: Start difference. First operand 3386 states and 3650 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 19:54:47,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:47,159 INFO L93 Difference]: Finished difference Result 8016 states and 8717 transitions. [2024-11-06 19:54:47,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:47,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 630 [2024-11-06 19:54:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:47,174 INFO L225 Difference]: With dead ends: 8016 [2024-11-06 19:54:47,175 INFO L226 Difference]: Without dead ends: 4810 [2024-11-06 19:54:47,179 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 19:54:47,180 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:47,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 52 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:54:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2024-11-06 19:54:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2024-11-06 19:54:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0721563734664172) internal successors, (5156), 4809 states have internal predecessors, (5156), 0 states have call successors, (0), 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 19:54:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5156 transitions. [2024-11-06 19:54:47,279 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5156 transitions. Word has length 630 [2024-11-06 19:54:47,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:47,280 INFO L471 AbstractCegarLoop]: Abstraction has 4810 states and 5156 transitions. [2024-11-06 19:54:47,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 19:54:47,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5156 transitions. [2024-11-06 19:54:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2024-11-06 19:54:47,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:47,288 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:47,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:54:47,289 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:47,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:47,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2069628610, now seen corresponding path program 1 times [2024-11-06 19:54:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:47,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416911488] [2024-11-06 19:54:47,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:47,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 1525 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2024-11-06 19:54:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:47,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416911488] [2024-11-06 19:54:47,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416911488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:47,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:47,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:47,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281512805] [2024-11-06 19:54:47,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:47,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:47,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:47,801 INFO L87 Difference]: Start difference. First operand 4810 states and 5156 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 19:54:48,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:48,239 INFO L93 Difference]: Finished difference Result 9618 states and 10325 transitions. [2024-11-06 19:54:48,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 709 [2024-11-06 19:54:48,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:48,257 INFO L225 Difference]: With dead ends: 9618 [2024-11-06 19:54:48,257 INFO L226 Difference]: Without dead ends: 4988 [2024-11-06 19:54:48,263 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 19:54:48,264 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:48,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2024-11-06 19:54:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4454. [2024-11-06 19:54:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0700651246350774) internal successors, (4765), 4453 states have internal predecessors, (4765), 0 states have call successors, (0), 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 19:54:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4765 transitions. [2024-11-06 19:54:48,344 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4765 transitions. Word has length 709 [2024-11-06 19:54:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:48,345 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4765 transitions. [2024-11-06 19:54:48,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 19:54:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4765 transitions. [2024-11-06 19:54:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-06 19:54:48,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:48,353 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 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 19:54:48,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 19:54:48,353 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:48,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:48,354 INFO L85 PathProgramCache]: Analyzing trace with hash -287829589, now seen corresponding path program 1 times [2024-11-06 19:54:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:48,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22953861] [2024-11-06 19:54:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:48,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:48,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:48,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22953861] [2024-11-06 19:54:48,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22953861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:48,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619033467] [2024-11-06 19:54:48,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:48,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:48,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:48,784 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:54:48,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 19:54:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:49,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:49,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:49,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:54:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1289 proven. 155 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-06 19:54:49,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619033467] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 19:54:49,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 19:54:49,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-06 19:54:49,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030192227] [2024-11-06 19:54:49,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 19:54:49,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 19:54:49,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 19:54:49,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:49,832 INFO L87 Difference]: Start difference. First operand 4454 states and 4765 transitions. Second operand has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 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 19:54:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:50,768 INFO L93 Difference]: Finished difference Result 10152 states and 10909 transitions. [2024-11-06 19:54:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 19:54:50,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 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 785 [2024-11-06 19:54:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:50,794 INFO L225 Difference]: With dead ends: 10152 [2024-11-06 19:54:50,795 INFO L226 Difference]: Without dead ends: 5878 [2024-11-06 19:54:50,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1572 GetRequests, 1568 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:50,800 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 75 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:50,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 68 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:54:50,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2024-11-06 19:54:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5166. [2024-11-06 19:54:50,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0710551790900291) internal successors, (5532), 5165 states have internal predecessors, (5532), 0 states have call successors, (0), 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 19:54:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5532 transitions. [2024-11-06 19:54:50,876 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5532 transitions. Word has length 785 [2024-11-06 19:54:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:50,878 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5532 transitions. [2024-11-06 19:54:50,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 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 19:54:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5532 transitions. [2024-11-06 19:54:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2024-11-06 19:54:50,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:50,887 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 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 19:54:50,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 19:54:51,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-06 19:54:51,089 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:51,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:51,089 INFO L85 PathProgramCache]: Analyzing trace with hash -570726484, now seen corresponding path program 1 times [2024-11-06 19:54:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:51,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462589261] [2024-11-06 19:54:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:51,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 1470 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-06 19:54:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:51,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462589261] [2024-11-06 19:54:51,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462589261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:51,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:51,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:51,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77385215] [2024-11-06 19:54:51,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:51,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:51,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:51,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:51,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:51,471 INFO L87 Difference]: Start difference. First operand 5166 states and 5532 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 19:54:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:51,873 INFO L93 Difference]: Finished difference Result 11220 states and 12108 transitions. [2024-11-06 19:54:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 857 [2024-11-06 19:54:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:51,882 INFO L225 Difference]: With dead ends: 11220 [2024-11-06 19:54:51,882 INFO L226 Difference]: Without dead ends: 6234 [2024-11-06 19:54:51,886 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 19:54:51,887 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 108 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:51,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 33 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2024-11-06 19:54:51,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6234. [2024-11-06 19:54:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.074923792716188) internal successors, (6700), 6233 states have internal predecessors, (6700), 0 states have call successors, (0), 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 19:54:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6700 transitions. [2024-11-06 19:54:51,959 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6700 transitions. Word has length 857 [2024-11-06 19:54:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:51,959 INFO L471 AbstractCegarLoop]: Abstraction has 6234 states and 6700 transitions. [2024-11-06 19:54:51,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 19:54:51,960 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6700 transitions. [2024-11-06 19:54:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2024-11-06 19:54:51,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:51,969 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:51,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 19:54:51,969 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:51,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash -948706177, now seen corresponding path program 1 times [2024-11-06 19:54:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:51,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6405625] [2024-11-06 19:54:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:51,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2301 backedges. 1527 proven. 93 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-06 19:54:52,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:52,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6405625] [2024-11-06 19:54:52,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6405625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:52,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116060733] [2024-11-06 19:54:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:52,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:52,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:52,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:54:52,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 19:54:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:52,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:53,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2301 backedges. 1620 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-06 19:54:53,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:53,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116060733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:53,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:53,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:54:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437714494] [2024-11-06 19:54:53,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:53,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:53,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:53,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:53,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:53,512 INFO L87 Difference]: Start difference. First operand 6234 states and 6700 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 19:54:53,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:53,935 INFO L93 Difference]: Finished difference Result 12644 states and 13591 transitions. [2024-11-06 19:54:53,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:53,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 875 [2024-11-06 19:54:53,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:53,947 INFO L225 Difference]: With dead ends: 12644 [2024-11-06 19:54:53,948 INFO L226 Difference]: Without dead ends: 6590 [2024-11-06 19:54:53,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 874 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:53,952 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:53,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:53,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2024-11-06 19:54:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6412. [2024-11-06 19:54:54,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0744033692091717) internal successors, (6888), 6411 states have internal predecessors, (6888), 0 states have call successors, (0), 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 19:54:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6888 transitions. [2024-11-06 19:54:54,020 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6888 transitions. Word has length 875 [2024-11-06 19:54:54,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:54,020 INFO L471 AbstractCegarLoop]: Abstraction has 6412 states and 6888 transitions. [2024-11-06 19:54:54,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 19:54:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6888 transitions. [2024-11-06 19:54:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2024-11-06 19:54:54,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:54,030 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 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] [2024-11-06 19:54:54,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 19:54:54,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-06 19:54:54,231 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:54,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:54,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1100691125, now seen corresponding path program 1 times [2024-11-06 19:54:54,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:54,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007832467] [2024-11-06 19:54:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2570 backedges. 1757 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-06 19:54:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007832467] [2024-11-06 19:54:54,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007832467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:54,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:54,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:54,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049554749] [2024-11-06 19:54:54,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:54,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:54,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:54,949 INFO L87 Difference]: Start difference. First operand 6412 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 19:54:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:55,335 INFO L93 Difference]: Finished difference Result 12466 states and 13415 transitions. [2024-11-06 19:54:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:55,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 943 [2024-11-06 19:54:55,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:55,349 INFO L225 Difference]: With dead ends: 12466 [2024-11-06 19:54:55,350 INFO L226 Difference]: Without dead ends: 6234 [2024-11-06 19:54:55,356 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 19:54:55,357 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:55,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:55,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2024-11-06 19:54:55,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 6234. [2024-11-06 19:54:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.067222846141505) internal successors, (6652), 6233 states have internal predecessors, (6652), 0 states have call successors, (0), 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 19:54:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6652 transitions. [2024-11-06 19:54:55,429 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6652 transitions. Word has length 943 [2024-11-06 19:54:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:55,430 INFO L471 AbstractCegarLoop]: Abstraction has 6234 states and 6652 transitions. [2024-11-06 19:54:55,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 19:54:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6652 transitions. [2024-11-06 19:54:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2024-11-06 19:54:55,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:55,439 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:55,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:54:55,439 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:55,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1227190264, now seen corresponding path program 1 times [2024-11-06 19:54:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:55,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274273052] [2024-11-06 19:54:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:55,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:56,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1865 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2024-11-06 19:54:56,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:56,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274273052] [2024-11-06 19:54:56,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274273052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:56,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125647768] [2024-11-06 19:54:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:56,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:54:56,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 19:54:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:56,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 19:54:56,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:57,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1865 proven. 625 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-11-06 19:54:57,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:54:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1937 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2024-11-06 19:54:58,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125647768] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-06 19:54:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-11-06 19:54:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585502305] [2024-11-06 19:54:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:58,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 19:54:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 19:54:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:54:58,182 INFO L87 Difference]: Start difference. First operand 6234 states and 6652 transitions. Second operand has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 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 19:54:58,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:58,768 INFO L93 Difference]: Finished difference Result 12644 states and 13507 transitions. [2024-11-06 19:54:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:58,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 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 952 [2024-11-06 19:54:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:58,779 INFO L225 Difference]: With dead ends: 12644 [2024-11-06 19:54:58,779 INFO L226 Difference]: Without dead ends: 6590 [2024-11-06 19:54:58,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1907 GetRequests, 1899 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:54:58,786 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 147 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:58,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 9 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:54:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2024-11-06 19:54:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6412. [2024-11-06 19:54:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0659803462798316) internal successors, (6834), 6411 states have internal predecessors, (6834), 0 states have call successors, (0), 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 19:54:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6834 transitions. [2024-11-06 19:54:58,854 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6834 transitions. Word has length 952 [2024-11-06 19:54:58,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:58,855 INFO L471 AbstractCegarLoop]: Abstraction has 6412 states and 6834 transitions. [2024-11-06 19:54:58,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 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 19:54:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6834 transitions. [2024-11-06 19:54:58,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2024-11-06 19:54:58,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:58,865 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 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] [2024-11-06 19:54:58,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 19:54:59,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-06 19:54:59,070 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:59,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:59,070 INFO L85 PathProgramCache]: Analyzing trace with hash -275538465, now seen corresponding path program 1 times [2024-11-06 19:54:59,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:59,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42671618] [2024-11-06 19:54:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:59,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3627 backedges. 1666 proven. 0 refuted. 0 times theorem prover too weak. 1961 trivial. 0 not checked. [2024-11-06 19:54:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:59,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42671618] [2024-11-06 19:54:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42671618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:59,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:59,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 19:54:59,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923057225] [2024-11-06 19:54:59,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:59,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 19:54:59,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:59,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 19:54:59,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:59,873 INFO L87 Difference]: Start difference. First operand 6412 states and 6834 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 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 19:55:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:00,566 INFO L93 Difference]: Finished difference Result 12360 states and 13167 transitions. [2024-11-06 19:55:00,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 19:55:00,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 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 995 [2024-11-06 19:55:00,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:00,574 INFO L225 Difference]: With dead ends: 12360 [2024-11-06 19:55:00,574 INFO L226 Difference]: Without dead ends: 5878 [2024-11-06 19:55:00,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:55:00,581 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 52 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:00,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 36 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:55:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2024-11-06 19:55:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2024-11-06 19:55:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0547898587714821) internal successors, (6199), 5877 states have internal predecessors, (6199), 0 states have call successors, (0), 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 19:55:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6199 transitions. [2024-11-06 19:55:00,643 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6199 transitions. Word has length 995 [2024-11-06 19:55:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:00,643 INFO L471 AbstractCegarLoop]: Abstraction has 5878 states and 6199 transitions. [2024-11-06 19:55:00,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 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 19:55:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6199 transitions. [2024-11-06 19:55:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2024-11-06 19:55:00,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:00,656 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:00,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 19:55:00,656 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:00,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash 703465302, now seen corresponding path program 1 times [2024-11-06 19:55:00,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:00,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534372436] [2024-11-06 19:55:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:00,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4570 backedges. 1842 proven. 0 refuted. 0 times theorem prover too weak. 2728 trivial. 0 not checked. [2024-11-06 19:55:01,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534372436] [2024-11-06 19:55:01,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534372436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:01,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:01,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227399368] [2024-11-06 19:55:01,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:01,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:55:01,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:01,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:55:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:55:01,394 INFO L87 Difference]: Start difference. First operand 5878 states and 6199 transitions. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 19:55:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:01,876 INFO L93 Difference]: Finished difference Result 11420 states and 12045 transitions. [2024-11-06 19:55:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:55:01,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 1160 [2024-11-06 19:55:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:01,883 INFO L225 Difference]: With dead ends: 11420 [2024-11-06 19:55:01,883 INFO L226 Difference]: Without dead ends: 5700 [2024-11-06 19:55:01,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:55:01,888 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:01,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:55:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-06 19:55:01,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2024-11-06 19:55:01,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.052465344797333) internal successors, (5998), 5699 states have internal predecessors, (5998), 0 states have call successors, (0), 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 19:55:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5998 transitions. [2024-11-06 19:55:01,950 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5998 transitions. Word has length 1160 [2024-11-06 19:55:01,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:01,950 INFO L471 AbstractCegarLoop]: Abstraction has 5700 states and 5998 transitions. [2024-11-06 19:55:01,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 19:55:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5998 transitions. [2024-11-06 19:55:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1197 [2024-11-06 19:55:01,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:01,963 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:01,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 19:55:01,963 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:01,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1047532179, now seen corresponding path program 1 times [2024-11-06 19:55:01,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:01,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016308281] [2024-11-06 19:55:01,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 3500 proven. 72 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2024-11-06 19:55:03,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:03,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016308281] [2024-11-06 19:55:03,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016308281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:55:03,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546138068] [2024-11-06 19:55:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:03,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:55:03,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:55:03,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:55:03,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 19:55:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:03,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 19:55:03,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:55:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 3459 proven. 666 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2024-11-06 19:55:04,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:55:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 3572 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2024-11-06 19:55:04,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546138068] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 19:55:04,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-06 19:55:04,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-11-06 19:55:04,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821838600] [2024-11-06 19:55:04,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:04,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 19:55:04,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:04,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 19:55:04,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:55:04,588 INFO L87 Difference]: Start difference. First operand 5700 states and 5998 transitions. Second operand has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 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 19:55:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:05,013 INFO L93 Difference]: Finished difference Result 11220 states and 11815 transitions. [2024-11-06 19:55:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:55:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 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 1196 [2024-11-06 19:55:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:05,018 INFO L225 Difference]: With dead ends: 11220 [2024-11-06 19:55:05,018 INFO L226 Difference]: Without dead ends: 5700 [2024-11-06 19:55:05,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2395 GetRequests, 2388 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:55:05,022 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 95 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:05,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 10 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:55:05,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-06 19:55:05,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2024-11-06 19:55:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0501842428496226) internal successors, (5985), 5699 states have internal predecessors, (5985), 0 states have call successors, (0), 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 19:55:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5985 transitions. [2024-11-06 19:55:05,063 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5985 transitions. Word has length 1196 [2024-11-06 19:55:05,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:05,063 INFO L471 AbstractCegarLoop]: Abstraction has 5700 states and 5985 transitions. [2024-11-06 19:55:05,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 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 19:55:05,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5985 transitions. [2024-11-06 19:55:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1489 [2024-11-06 19:55:05,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:55:05,075 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:05,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-06 19:55:05,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:55:05,276 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:55:05,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:55:05,276 INFO L85 PathProgramCache]: Analyzing trace with hash 290093558, now seen corresponding path program 1 times [2024-11-06 19:55:05,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:55:05,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048136682] [2024-11-06 19:55:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:55:05,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:55:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:55:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7072 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 6509 trivial. 0 not checked. [2024-11-06 19:55:06,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:55:06,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048136682] [2024-11-06 19:55:06,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048136682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:55:06,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:55:06,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:55:06,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051315822] [2024-11-06 19:55:06,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:55:06,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:55:06,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:55:06,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:55:06,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:55:06,079 INFO L87 Difference]: Start difference. First operand 5700 states and 5985 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 19:55:06,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:55:06,485 INFO L93 Difference]: Finished difference Result 11052 states and 11604 transitions. [2024-11-06 19:55:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:55:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 1488 [2024-11-06 19:55:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:55:06,486 INFO L225 Difference]: With dead ends: 11052 [2024-11-06 19:55:06,487 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 19:55:06,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:55:06,491 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:55:06,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 15 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:55:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 19:55:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 19:55:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 19:55:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 19:55:06,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1488 [2024-11-06 19:55:06,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:55:06,493 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 19:55:06,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 19:55:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 19:55:06,493 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 19:55:06,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 19:55:06,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 19:55:06,499 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:55:06,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 19:55:07,059 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 19:55:07,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:55:07 BoogieIcfgContainer [2024-11-06 19:55:07,072 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 19:55:07,073 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 19:55:07,073 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 19:55:07,073 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 19:55:07,074 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:54:29" (3/4) ... [2024-11-06 19:55:07,076 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 19:55:07,096 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-06 19:55:07,097 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 19:55:07,101 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 19:55:07,102 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 19:55:07,236 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 19:55:07,236 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 19:55:07,236 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 19:55:07,237 INFO L158 Benchmark]: Toolchain (without parser) took 40021.87ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 75.5MB in the beginning and 485.5MB in the end (delta: -410.0MB). Peak memory consumption was 618.8MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,237 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 48.3MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 19:55:07,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.81ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 43.9MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.91ms. Allocated memory is still 100.7MB. Free memory was 43.9MB in the beginning and 70.4MB in the end (delta: -26.4MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,237 INFO L158 Benchmark]: Boogie Preprocessor took 109.89ms. Allocated memory is still 100.7MB. Free memory was 70.4MB in the beginning and 58.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,237 INFO L158 Benchmark]: RCFGBuilder took 1590.40ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 63.9MB in the end (delta: -5.8MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,237 INFO L158 Benchmark]: TraceAbstraction took 37544.73ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.1MB in the beginning and 497.9MB in the end (delta: -434.7MB). Peak memory consumption was 596.5MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,238 INFO L158 Benchmark]: Witness Printer took 163.23ms. Allocated memory is still 1.1GB. Free memory was 497.9MB in the beginning and 485.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 19:55:07,239 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 48.3MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.81ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 43.9MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.91ms. Allocated memory is still 100.7MB. Free memory was 43.9MB in the beginning and 70.4MB in the end (delta: -26.4MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.89ms. Allocated memory is still 100.7MB. Free memory was 70.4MB in the beginning and 58.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1590.40ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 63.9MB in the end (delta: -5.8MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * TraceAbstraction took 37544.73ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 63.1MB in the beginning and 497.9MB in the end (delta: -434.7MB). Peak memory consumption was 596.5MB. Max. memory is 16.1GB. * Witness Printer took 163.23ms. Allocated memory is still 1.1GB. Free memory was 497.9MB in the beginning and 485.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 161]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.9s, OverallIterations: 21, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2162 SdHoareTripleChecker+Valid, 12.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2162 mSDsluCounter, 1707 SdHoareTripleChecker+Invalid, 10.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 1565 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12483 IncrementalHoareTripleChecker+Invalid, 14048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1565 mSolverCounterUnsat, 1555 mSDtfsCounter, 12483 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8323 GetRequests, 8260 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6412occurred in iteration=15, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 3560 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 19911 NumberOfCodeBlocks, 19911 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 22813 ConstructedInterpolants, 0 QuantifiedInterpolants, 62617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6627 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 31 InterpolantComputations, 20 PerfectInterpolantSequences, 63560/65889 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((a24 == 1) && (5 == a15)) && (a21 == 6)) && (a12 <= 600129)) || (((a15 <= 8) && (a21 <= 6)) && (((long long) 49 + a12) <= 0))) || (((a21 <= 9) && (a24 == 1)) && (a12 <= 600060))) || (((a24 == 1) && (7 != a15)) && (a12 <= 600060))) || ((a12 <= 11) && (a24 == 1))) || ((((a24 == 1) && (a21 == 10)) && (81 <= a12)) && (a12 <= 600060))) RESULT: Ultimate proved your program to be correct! [2024-11-06 19:55:07,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE