./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label35.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/Problem03_label35.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', '7d54fa4bc915c3e337e3a3fd5a20fd6a2b066ccd7f01acca135e0e9b0e83a6b2'] 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/Problem03_label35.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 7d54fa4bc915c3e337e3a3fd5a20fd6a2b066ccd7f01acca135e0e9b0e83a6b2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 18:57:47,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 18:57:47,306 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 18:57:47,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 18:57:47,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 18:57:47,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 18:57:47,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 18:57:47,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 18:57:47,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 18:57:47,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 18:57:47,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 18:57:47,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 18:57:47,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 18:57:47,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 18:57:47,332 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 18:57:47,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 18:57:47,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 18:57:47,332 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 18:57:47,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 18:57:47,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:57:47,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 18:57:47,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 18:57:47,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 18:57:47,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 18:57:47,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 18:57:47,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 18:57:47,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 18:57:47,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 18:57:47,334 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 -> 7d54fa4bc915c3e337e3a3fd5a20fd6a2b066ccd7f01acca135e0e9b0e83a6b2 [2024-11-06 18:57:47,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 18:57:47,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 18:57:47,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 18:57:47,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 18:57:47,579 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 18:57:47,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label35.c [2024-11-06 18:57:48,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 18:57:49,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 18:57:49,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label35.c [2024-11-06 18:57:49,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9e1f74440/0262f61006ff4fa4aec199e3ac7f7706/FLAGc3db8afaa [2024-11-06 18:57:49,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9e1f74440/0262f61006ff4fa4aec199e3ac7f7706 [2024-11-06 18:57:49,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 18:57:49,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 18:57:49,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 18:57:49,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 18:57:49,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 18:57:49,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc9df5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49, skipping insertion in model container [2024-11-06 18:57:49,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 18:57:49,486 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/Problem03_label35.c[53787,53800] [2024-11-06 18:57:49,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:57:49,540 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 18:57:49,685 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/Problem03_label35.c[53787,53800] [2024-11-06 18:57:49,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:57:49,715 INFO L204 MainTranslator]: Completed translation [2024-11-06 18:57:49,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49 WrapperNode [2024-11-06 18:57:49,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 18:57:49,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 18:57:49,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 18:57:49,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 18:57:49,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,813 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772 [2024-11-06 18:57:49,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 18:57:49,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 18:57:49,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 18:57:49,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 18:57:49,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,861 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 18:57:49,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:49,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:50,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 18:57:50,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 18:57:50,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 18:57:50,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 18:57:50,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (1/1) ... [2024-11-06 18:57:50,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:57:50,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:57:50,029 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 18:57:50,033 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 18:57:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 18:57:50,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 18:57:50,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 18:57:50,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 18:57:50,124 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 18:57:50,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 18:57:51,460 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-06 18:57:51,461 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 18:57:51,471 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 18:57:51,471 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 18:57:51,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:57:51 BoogieIcfgContainer [2024-11-06 18:57:51,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 18:57:51,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 18:57:51,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 18:57:51,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 18:57:51,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:57:49" (1/3) ... [2024-11-06 18:57:51,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafe390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:57:51, skipping insertion in model container [2024-11-06 18:57:51,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:49" (2/3) ... [2024-11-06 18:57:51,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafe390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:57:51, skipping insertion in model container [2024-11-06 18:57:51,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:57:51" (3/3) ... [2024-11-06 18:57:51,478 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label35.c [2024-11-06 18:57:51,488 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 18:57:51,489 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 18:57:51,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 18:57:51,532 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;@6b760593, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 18:57:51,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 18:57:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states 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 18:57:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-06 18:57:51,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:51,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:57:51,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:51,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash 21210939, now seen corresponding path program 1 times [2024-11-06 18:57:51,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:51,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502296617] [2024-11-06 18:57:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:51,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:52,193 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 18:57:52,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:52,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502296617] [2024-11-06 18:57:52,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502296617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:52,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:57:52,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:57:52,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729786200] [2024-11-06 18:57:52,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:52,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:52,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:52,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:52,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:57:52,217 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 18:57:53,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:57:53,035 INFO L93 Difference]: Finished difference Result 857 states and 1498 transitions. [2024-11-06 18:57:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:57:53,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-06 18:57:53,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:57:53,045 INFO L225 Difference]: With dead ends: 857 [2024-11-06 18:57:53,045 INFO L226 Difference]: Without dead ends: 462 [2024-11-06 18:57:53,048 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 18:57:53,050 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 143 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 18:57:53,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 187 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 18:57:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-06 18:57:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 460. [2024-11-06 18:57:53,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.5381263616557734) internal successors, (706), 459 states have internal predecessors, (706), 0 states have call successors, (0), 0 states 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 18:57:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 706 transitions. [2024-11-06 18:57:53,094 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 706 transitions. Word has length 145 [2024-11-06 18:57:53,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:57:53,094 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 706 transitions. [2024-11-06 18:57:53,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 18:57:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 706 transitions. [2024-11-06 18:57:53,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-06 18:57:53,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:53,099 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:57:53,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 18:57:53,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:53,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2113463164, now seen corresponding path program 1 times [2024-11-06 18:57:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:53,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324336005] [2024-11-06 18:57:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:57:53,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:53,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324336005] [2024-11-06 18:57:53,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324336005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:53,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:57:53,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:57:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948974192] [2024-11-06 18:57:53,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:53,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:57:53,277 INFO L87 Difference]: Start difference. First operand 460 states and 706 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 18:57:53,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:57:53,992 INFO L93 Difference]: Finished difference Result 1344 states and 2079 transitions. [2024-11-06 18:57:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:57:53,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-06 18:57:53,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:57:53,996 INFO L225 Difference]: With dead ends: 1344 [2024-11-06 18:57:53,996 INFO L226 Difference]: Without dead ends: 886 [2024-11-06 18:57:53,997 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 18:57:53,997 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:57:53,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 90 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:57:53,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-06 18:57:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 870. [2024-11-06 18:57:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 869 states have (on average 1.5132336018411967) internal successors, (1315), 869 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states 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 18:57:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1315 transitions. [2024-11-06 18:57:54,038 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1315 transitions. Word has length 153 [2024-11-06 18:57:54,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:57:54,038 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1315 transitions. [2024-11-06 18:57:54,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 18:57:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1315 transitions. [2024-11-06 18:57:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-06 18:57:54,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:54,041 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:54,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 18:57:54,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:54,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1484336335, now seen corresponding path program 1 times [2024-11-06 18:57:54,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:54,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810372635] [2024-11-06 18:57:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:57:54,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:54,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810372635] [2024-11-06 18:57:54,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810372635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:57:54,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212336898] [2024-11-06 18:57:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:54,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:57:54,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:57:54,464 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 18:57:54,466 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 18:57:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:54,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:57:54,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:57:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:57:54,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:57:54,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212336898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:54,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:57:54,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 18:57:54,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620491366] [2024-11-06 18:57:54,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:54,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:54,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:54,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:54,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:57:54,836 INFO L87 Difference]: Start difference. First operand 870 states and 1315 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 18:57:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:57:55,558 INFO L93 Difference]: Finished difference Result 2554 states and 3872 transitions. [2024-11-06 18:57:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:57:55,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 160 [2024-11-06 18:57:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:57:55,564 INFO L225 Difference]: With dead ends: 2554 [2024-11-06 18:57:55,567 INFO L226 Difference]: Without dead ends: 1686 [2024-11-06 18:57:55,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:57:55,570 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 94 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:57:55,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 417 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:57:55,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-06 18:57:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1684. [2024-11-06 18:57:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.3368983957219251) internal successors, (2250), 1683 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states 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 18:57:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2250 transitions. [2024-11-06 18:57:55,604 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2250 transitions. Word has length 160 [2024-11-06 18:57:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:57:55,605 INFO L471 AbstractCegarLoop]: Abstraction has 1684 states and 2250 transitions. [2024-11-06 18:57:55,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 18:57:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2250 transitions. [2024-11-06 18:57:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-06 18:57:55,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:55,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:55,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 18:57:55,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:57:55,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:55,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash -127458632, now seen corresponding path program 1 times [2024-11-06 18:57:55,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:55,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201056917] [2024-11-06 18:57:55,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:57:55,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:55,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201056917] [2024-11-06 18:57:55,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201056917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:55,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:57:55,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:57:55,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368383699] [2024-11-06 18:57:55,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:55,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:55,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:57:55,968 INFO L87 Difference]: Start difference. First operand 1684 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states 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 18:57:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:57:56,578 INFO L93 Difference]: Finished difference Result 5003 states and 6689 transitions. [2024-11-06 18:57:56,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:57:56,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-06 18:57:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:57:56,588 INFO L225 Difference]: With dead ends: 5003 [2024-11-06 18:57:56,588 INFO L226 Difference]: Without dead ends: 3321 [2024-11-06 18:57:56,589 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 18:57:56,590 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 239 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:57:56,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 173 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:57:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3321 states. [2024-11-06 18:57:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3321 to 3320. [2024-11-06 18:57:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.2847243145525762) internal successors, (4264), 3319 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states 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 18:57:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4264 transitions. [2024-11-06 18:57:56,649 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4264 transitions. Word has length 168 [2024-11-06 18:57:56,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:57:56,650 INFO L471 AbstractCegarLoop]: Abstraction has 3320 states and 4264 transitions. [2024-11-06 18:57:56,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states 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 18:57:56,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4264 transitions. [2024-11-06 18:57:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-06 18:57:56,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:56,654 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:57:56,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 18:57:56,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:56,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:56,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1480956301, now seen corresponding path program 1 times [2024-11-06 18:57:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126645721] [2024-11-06 18:57:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:56,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:57:56,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:56,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126645721] [2024-11-06 18:57:56,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126645721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:56,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:57:56,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:57:56,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611584520] [2024-11-06 18:57:56,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:56,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:56,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:56,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:56,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:57:56,950 INFO L87 Difference]: Start difference. First operand 3320 states and 4264 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 18:57:57,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:57:57,826 INFO L93 Difference]: Finished difference Result 9900 states and 12717 transitions. [2024-11-06 18:57:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:57:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 180 [2024-11-06 18:57:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:57:57,846 INFO L225 Difference]: With dead ends: 9900 [2024-11-06 18:57:57,846 INFO L226 Difference]: Without dead ends: 6582 [2024-11-06 18:57:57,851 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 18:57:57,852 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 202 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 18:57:57,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 418 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 18:57:57,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2024-11-06 18:57:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6577. [2024-11-06 18:57:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 6576 states have (on average 1.2244525547445255) internal successors, (8052), 6576 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states 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 18:57:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 8052 transitions. [2024-11-06 18:57:57,958 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 8052 transitions. Word has length 180 [2024-11-06 18:57:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:57:57,958 INFO L471 AbstractCegarLoop]: Abstraction has 6577 states and 8052 transitions. [2024-11-06 18:57:57,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 18:57:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 8052 transitions. [2024-11-06 18:57:57,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-06 18:57:57,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:57,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:57,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 18:57:57,966 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:57,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:57,967 INFO L85 PathProgramCache]: Analyzing trace with hash -163195252, now seen corresponding path program 1 times [2024-11-06 18:57:57,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:57,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148287130] [2024-11-06 18:57:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:57,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:57:58,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:58,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148287130] [2024-11-06 18:57:58,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148287130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:58,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:57:58,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:57:58,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975618898] [2024-11-06 18:57:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:58,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:58,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:58,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:58,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:57:58,173 INFO L87 Difference]: Start difference. First operand 6577 states and 8052 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 18:57:58,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:57:58,862 INFO L93 Difference]: Finished difference Result 16215 states and 19823 transitions. [2024-11-06 18:57:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:57:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2024-11-06 18:57:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:57:58,887 INFO L225 Difference]: With dead ends: 16215 [2024-11-06 18:57:58,888 INFO L226 Difference]: Without dead ends: 9640 [2024-11-06 18:57:58,894 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 18:57:58,896 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 204 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:57:58,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 154 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:57:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states. [2024-11-06 18:57:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 9638. [2024-11-06 18:57:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9638 states, 9637 states have (on average 1.203797862405313) internal successors, (11601), 9637 states have internal predecessors, (11601), 0 states have call successors, (0), 0 states 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 18:57:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9638 states to 9638 states and 11601 transitions. [2024-11-06 18:57:59,029 INFO L78 Accepts]: Start accepts. Automaton has 9638 states and 11601 transitions. Word has length 186 [2024-11-06 18:57:59,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:57:59,030 INFO L471 AbstractCegarLoop]: Abstraction has 9638 states and 11601 transitions. [2024-11-06 18:57:59,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 18:57:59,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9638 states and 11601 transitions. [2024-11-06 18:57:59,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-06 18:57:59,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:57:59,038 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:59,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 18:57:59,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:57:59,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:57:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -773361289, now seen corresponding path program 1 times [2024-11-06 18:57:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:57:59,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054427509] [2024-11-06 18:57:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:59,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:57:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:57:59,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:57:59,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054427509] [2024-11-06 18:57:59,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054427509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:57:59,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58068184] [2024-11-06 18:57:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:57:59,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:57:59,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:57:59,407 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 18:57:59,411 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 18:57:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:57:59,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:57:59,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:57:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:57:59,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:57:59,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58068184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:57:59,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:57:59,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:57:59,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928989722] [2024-11-06 18:57:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:57:59,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:57:59,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:57:59,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:57:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:57:59,946 INFO L87 Difference]: Start difference. First operand 9638 states and 11601 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 18:58:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:00,776 INFO L93 Difference]: Finished difference Result 23771 states and 28946 transitions. [2024-11-06 18:58:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:00,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 193 [2024-11-06 18:58:00,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:00,836 INFO L225 Difference]: With dead ends: 23771 [2024-11-06 18:58:00,836 INFO L226 Difference]: Without dead ends: 14135 [2024-11-06 18:58:00,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:00,850 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 100 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:00,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 166 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:58:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14135 states. [2024-11-06 18:58:00,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14135 to 12486. [2024-11-06 18:58:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 12485 states have (on average 1.238285943131758) internal successors, (15460), 12485 states have internal predecessors, (15460), 0 states have call successors, (0), 0 states 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 18:58:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 15460 transitions. [2024-11-06 18:58:01,031 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 15460 transitions. Word has length 193 [2024-11-06 18:58:01,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:01,031 INFO L471 AbstractCegarLoop]: Abstraction has 12486 states and 15460 transitions. [2024-11-06 18:58:01,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states 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 18:58:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 15460 transitions. [2024-11-06 18:58:01,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-06 18:58:01,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:01,044 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:01,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:01,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:01,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:01,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:01,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1145247182, now seen corresponding path program 1 times [2024-11-06 18:58:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:01,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034926561] [2024-11-06 18:58:01,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:01,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 72 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-06 18:58:01,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:01,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034926561] [2024-11-06 18:58:01,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034926561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:01,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540487803] [2024-11-06 18:58:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:01,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:01,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:01,570 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 18:58:01,571 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 18:58:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:01,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:58:01,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:58:01,752 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:01,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540487803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:01,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:01,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:01,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100062780] [2024-11-06 18:58:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:01,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:01,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:01,753 INFO L87 Difference]: Start difference. First operand 12486 states and 15460 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:58:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:02,592 INFO L93 Difference]: Finished difference Result 31063 states and 39155 transitions. [2024-11-06 18:58:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:02,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2024-11-06 18:58:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:02,618 INFO L225 Difference]: With dead ends: 31063 [2024-11-06 18:58:02,619 INFO L226 Difference]: Without dead ends: 18579 [2024-11-06 18:58:02,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 211 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 18:58:02,631 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 227 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:02,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 167 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:58:02,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18579 states. [2024-11-06 18:58:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18579 to 18576. [2024-11-06 18:58:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18576 states, 18575 states have (on average 1.1995693135935397) internal successors, (22282), 18575 states have internal predecessors, (22282), 0 states have call successors, (0), 0 states 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 18:58:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18576 states to 18576 states and 22282 transitions. [2024-11-06 18:58:02,836 INFO L78 Accepts]: Start accepts. Automaton has 18576 states and 22282 transitions. Word has length 212 [2024-11-06 18:58:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:02,837 INFO L471 AbstractCegarLoop]: Abstraction has 18576 states and 22282 transitions. [2024-11-06 18:58:02,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:58:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand 18576 states and 22282 transitions. [2024-11-06 18:58:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-06 18:58:02,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:02,897 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:02,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:03,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:03,099 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:03,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1922201618, now seen corresponding path program 1 times [2024-11-06 18:58:03,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:03,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168999241] [2024-11-06 18:58:03,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:03,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 77 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:58:03,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:03,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168999241] [2024-11-06 18:58:03,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168999241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:03,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262981824] [2024-11-06 18:58:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:03,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:03,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:03,566 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 18:58:03,569 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 18:58:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:03,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:58:03,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:58:03,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:03,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262981824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:03,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:03,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:03,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143036524] [2024-11-06 18:58:03,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:03,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:03,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:03,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:03,840 INFO L87 Difference]: Start difference. First operand 18576 states and 22282 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 18:58:04,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:04,528 INFO L93 Difference]: Finished difference Result 37153 states and 44567 transitions. [2024-11-06 18:58:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:04,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 225 [2024-11-06 18:58:04,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:04,557 INFO L225 Difference]: With dead ends: 37153 [2024-11-06 18:58:04,557 INFO L226 Difference]: Without dead ends: 18579 [2024-11-06 18:58:04,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:04,573 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 126 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:04,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 342 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:58:04,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18579 states. [2024-11-06 18:58:04,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18579 to 18170. [2024-11-06 18:58:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 18169 states have (on average 1.1811326985524795) internal successors, (21460), 18169 states have internal predecessors, (21460), 0 states have call successors, (0), 0 states 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 18:58:04,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 21460 transitions. [2024-11-06 18:58:04,755 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 21460 transitions. Word has length 225 [2024-11-06 18:58:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:04,755 INFO L471 AbstractCegarLoop]: Abstraction has 18170 states and 21460 transitions. [2024-11-06 18:58:04,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 18:58:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 21460 transitions. [2024-11-06 18:58:04,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-06 18:58:04,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:04,772 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:58:04,789 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 18:58:04,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-06 18:58:04,977 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:04,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:04,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1803571882, now seen corresponding path program 1 times [2024-11-06 18:58:04,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:04,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124610539] [2024-11-06 18:58:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:04,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:05,548 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 96 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-06 18:58:05,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124610539] [2024-11-06 18:58:05,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124610539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018545782] [2024-11-06 18:58:05,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:05,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:05,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:05,555 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 18:58:05,556 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 18:58:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:05,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:58:05,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-06 18:58:05,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:05,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018545782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:05,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:05,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:05,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600801830] [2024-11-06 18:58:05,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:05,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:05,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:05,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:05,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:05,720 INFO L87 Difference]: Start difference. First operand 18170 states and 21460 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 18:58:06,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:06,396 INFO L93 Difference]: Finished difference Result 36341 states and 42923 transitions. [2024-11-06 18:58:06,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:06,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 232 [2024-11-06 18:58:06,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:06,421 INFO L225 Difference]: With dead ends: 36341 [2024-11-06 18:58:06,421 INFO L226 Difference]: Without dead ends: 18173 [2024-11-06 18:58:06,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 231 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 18:58:06,437 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 260 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:06,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 97 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:58:06,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18173 states. [2024-11-06 18:58:06,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18173 to 18170. [2024-11-06 18:58:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 18169 states have (on average 1.1765644779569597) internal successors, (21377), 18169 states have internal predecessors, (21377), 0 states have call successors, (0), 0 states 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 18:58:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 21377 transitions. [2024-11-06 18:58:06,597 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 21377 transitions. Word has length 232 [2024-11-06 18:58:06,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:06,597 INFO L471 AbstractCegarLoop]: Abstraction has 18170 states and 21377 transitions. [2024-11-06 18:58:06,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 18:58:06,597 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 21377 transitions. [2024-11-06 18:58:06,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-06 18:58:06,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:06,611 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:58:06,624 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 18:58:06,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-06 18:58:06,812 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:06,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2031851988, now seen corresponding path program 1 times [2024-11-06 18:58:06,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:06,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361652414] [2024-11-06 18:58:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:06,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-06 18:58:07,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361652414] [2024-11-06 18:58:07,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361652414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970717551] [2024-11-06 18:58:07,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:07,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:07,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:07,157 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 18:58:07,158 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 18:58:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:07,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:58:07,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-06 18:58:07,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:07,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970717551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:07,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:07,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:07,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609890081] [2024-11-06 18:58:07,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:07,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:07,350 INFO L87 Difference]: Start difference. First operand 18170 states and 21377 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 18:58:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:08,079 INFO L93 Difference]: Finished difference Result 35348 states and 41562 transitions. [2024-11-06 18:58:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:08,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 239 [2024-11-06 18:58:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:08,102 INFO L225 Difference]: With dead ends: 35348 [2024-11-06 18:58:08,102 INFO L226 Difference]: Without dead ends: 17180 [2024-11-06 18:58:08,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:08,115 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 212 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:08,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 397 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:58:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17180 states. [2024-11-06 18:58:08,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17180 to 17155. [2024-11-06 18:58:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17155 states, 17154 states have (on average 1.1660254168124053) internal successors, (20002), 17154 states have internal predecessors, (20002), 0 states have call successors, (0), 0 states 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 18:58:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17155 states to 17155 states and 20002 transitions. [2024-11-06 18:58:08,253 INFO L78 Accepts]: Start accepts. Automaton has 17155 states and 20002 transitions. Word has length 239 [2024-11-06 18:58:08,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:08,253 INFO L471 AbstractCegarLoop]: Abstraction has 17155 states and 20002 transitions. [2024-11-06 18:58:08,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 18:58:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 17155 states and 20002 transitions. [2024-11-06 18:58:08,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-06 18:58:08,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:08,269 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:58:08,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:08,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-06 18:58:08,473 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:08,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:08,473 INFO L85 PathProgramCache]: Analyzing trace with hash -717201105, now seen corresponding path program 1 times [2024-11-06 18:58:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:08,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047181862] [2024-11-06 18:58:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:08,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:58:08,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:08,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047181862] [2024-11-06 18:58:08,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047181862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:08,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:08,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 18:58:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053939402] [2024-11-06 18:58:08,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:08,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 18:58:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 18:58:08,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:08,775 INFO L87 Difference]: Start difference. First operand 17155 states and 20002 transitions. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states 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 18:58:09,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:09,918 INFO L93 Difference]: Finished difference Result 70790 states and 82634 transitions. [2024-11-06 18:58:09,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 18:58:09,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 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 267 [2024-11-06 18:58:09,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:09,985 INFO L225 Difference]: With dead ends: 70790 [2024-11-06 18:58:09,986 INFO L226 Difference]: Without dead ends: 53637 [2024-11-06 18:58:10,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:10,012 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 1066 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:10,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 759 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 18:58:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53637 states. [2024-11-06 18:58:10,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53637 to 53017. [2024-11-06 18:58:10,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53017 states, 53016 states have (on average 1.1579523162818772) internal successors, (61390), 53016 states have internal predecessors, (61390), 0 states have call successors, (0), 0 states 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 18:58:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53017 states to 53017 states and 61390 transitions. [2024-11-06 18:58:10,602 INFO L78 Accepts]: Start accepts. Automaton has 53017 states and 61390 transitions. Word has length 267 [2024-11-06 18:58:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:10,603 INFO L471 AbstractCegarLoop]: Abstraction has 53017 states and 61390 transitions. [2024-11-06 18:58:10,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states 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 18:58:10,603 INFO L276 IsEmpty]: Start isEmpty. Operand 53017 states and 61390 transitions. [2024-11-06 18:58:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-06 18:58:10,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:10,636 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 18:58:10,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 18:58:10,636 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:10,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1052519441, now seen corresponding path program 1 times [2024-11-06 18:58:10,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185510506] [2024-11-06 18:58:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 93 proven. 6 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-06 18:58:11,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:11,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185510506] [2024-11-06 18:58:11,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185510506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:11,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990593090] [2024-11-06 18:58:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:11,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:11,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:11,010 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 18:58:11,011 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 18:58:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:11,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:58:11,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-06 18:58:11,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:11,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990593090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:11,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:11,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-06 18:58:11,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523846634] [2024-11-06 18:58:11,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:11,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:11,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:11,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:11,231 INFO L87 Difference]: Start difference. First operand 53017 states and 61390 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states 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 18:58:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:11,786 INFO L93 Difference]: Finished difference Result 102693 states and 118863 transitions. [2024-11-06 18:58:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:11,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 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 326 [2024-11-06 18:58:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:11,840 INFO L225 Difference]: With dead ends: 102693 [2024-11-06 18:58:11,841 INFO L226 Difference]: Without dead ends: 49678 [2024-11-06 18:58:11,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:11,862 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 308 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:11,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:58:11,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49678 states. [2024-11-06 18:58:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49678 to 49678. [2024-11-06 18:58:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49678 states, 49677 states have (on average 1.1482577450329126) internal successors, (57042), 49677 states have internal predecessors, (57042), 0 states have call successors, (0), 0 states 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 18:58:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49678 states to 49678 states and 57042 transitions. [2024-11-06 18:58:12,463 INFO L78 Accepts]: Start accepts. Automaton has 49678 states and 57042 transitions. Word has length 326 [2024-11-06 18:58:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:12,463 INFO L471 AbstractCegarLoop]: Abstraction has 49678 states and 57042 transitions. [2024-11-06 18:58:12,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states 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 18:58:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 49678 states and 57042 transitions. [2024-11-06 18:58:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-06 18:58:12,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:12,501 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 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 18:58:12,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:12,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:12,704 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:12,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1470047391, now seen corresponding path program 1 times [2024-11-06 18:58:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:12,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304183163] [2024-11-06 18:58:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:12,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 154 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-06 18:58:13,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304183163] [2024-11-06 18:58:13,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304183163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251866936] [2024-11-06 18:58:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:13,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:13,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:13,290 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:58:13,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 18:58:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:13,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:58:13,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 18:58:13,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:13,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251866936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:13,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:13,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:13,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272522815] [2024-11-06 18:58:13,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:13,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:13,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:13,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:13,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:13,676 INFO L87 Difference]: Start difference. First operand 49678 states and 57042 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states 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 18:58:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:14,375 INFO L93 Difference]: Finished difference Result 125433 states and 145093 transitions. [2024-11-06 18:58:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:14,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 330 [2024-11-06 18:58:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:14,466 INFO L225 Difference]: With dead ends: 125433 [2024-11-06 18:58:14,467 INFO L226 Difference]: Without dead ends: 75757 [2024-11-06 18:58:14,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:14,508 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:14,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 92 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:58:14,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75757 states. [2024-11-06 18:58:15,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75757 to 72898. [2024-11-06 18:58:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72898 states, 72897 states have (on average 1.1443955169622892) internal successors, (83423), 72897 states have internal predecessors, (83423), 0 states have call successors, (0), 0 states 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 18:58:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72898 states to 72898 states and 83423 transitions. [2024-11-06 18:58:15,768 INFO L78 Accepts]: Start accepts. Automaton has 72898 states and 83423 transitions. Word has length 330 [2024-11-06 18:58:15,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:15,769 INFO L471 AbstractCegarLoop]: Abstraction has 72898 states and 83423 transitions. [2024-11-06 18:58:15,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states 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 18:58:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 72898 states and 83423 transitions. [2024-11-06 18:58:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-06 18:58:15,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:15,842 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 18:58:15,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:16,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:16,043 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:16,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2104201825, now seen corresponding path program 1 times [2024-11-06 18:58:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065012103] [2024-11-06 18:58:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:16,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-06 18:58:16,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:16,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065012103] [2024-11-06 18:58:16,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065012103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:16,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:16,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:58:16,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412477553] [2024-11-06 18:58:16,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:16,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:16,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:16,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:58:16,506 INFO L87 Difference]: Start difference. First operand 72898 states and 83423 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 18:58:17,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:17,424 INFO L93 Difference]: Finished difference Result 155577 states and 178004 transitions. [2024-11-06 18:58:17,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 344 [2024-11-06 18:58:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:17,517 INFO L225 Difference]: With dead ends: 155577 [2024-11-06 18:58:17,517 INFO L226 Difference]: Without dead ends: 79230 [2024-11-06 18:58:17,566 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 18:58:17,566 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 169 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:17,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 333 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:58:17,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79230 states. [2024-11-06 18:58:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79230 to 73700. [2024-11-06 18:58:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73700 states, 73699 states have (on average 1.0967448676372813) internal successors, (80829), 73699 states have internal predecessors, (80829), 0 states have call successors, (0), 0 states 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 18:58:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73700 states to 73700 states and 80829 transitions. [2024-11-06 18:58:18,543 INFO L78 Accepts]: Start accepts. Automaton has 73700 states and 80829 transitions. Word has length 344 [2024-11-06 18:58:18,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:18,543 INFO L471 AbstractCegarLoop]: Abstraction has 73700 states and 80829 transitions. [2024-11-06 18:58:18,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 18:58:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand 73700 states and 80829 transitions. [2024-11-06 18:58:18,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-06 18:58:18,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:18,579 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:58:18,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 18:58:18,580 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:18,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:18,580 INFO L85 PathProgramCache]: Analyzing trace with hash 109963054, now seen corresponding path program 1 times [2024-11-06 18:58:18,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:18,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172404235] [2024-11-06 18:58:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:18,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-06 18:58:19,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172404235] [2024-11-06 18:58:19,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172404235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242319668] [2024-11-06 18:58:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:19,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:19,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:19,389 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:58:19,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-06 18:58:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:19,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:58:19,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-06 18:58:20,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:20,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242319668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:20,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:20,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:20,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443152800] [2024-11-06 18:58:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:20,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:20,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:20,038 INFO L87 Difference]: Start difference. First operand 73700 states and 80829 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states 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 18:58:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:21,075 INFO L93 Difference]: Finished difference Result 158851 states and 174875 transitions. [2024-11-06 18:58:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:21,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357 [2024-11-06 18:58:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:21,177 INFO L225 Difference]: With dead ends: 158851 [2024-11-06 18:58:21,177 INFO L226 Difference]: Without dead ends: 85153 [2024-11-06 18:58:21,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:21,233 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 91 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:21,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 116 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:58:21,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85153 states. [2024-11-06 18:58:22,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85153 to 83321. [2024-11-06 18:58:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83321 states, 83320 states have (on average 1.0954992798847816) internal successors, (91277), 83320 states have internal predecessors, (91277), 0 states have call successors, (0), 0 states 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 18:58:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83321 states to 83321 states and 91277 transitions. [2024-11-06 18:58:22,582 INFO L78 Accepts]: Start accepts. Automaton has 83321 states and 91277 transitions. Word has length 357 [2024-11-06 18:58:22,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:22,582 INFO L471 AbstractCegarLoop]: Abstraction has 83321 states and 91277 transitions. [2024-11-06 18:58:22,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states 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 18:58:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 83321 states and 91277 transitions. [2024-11-06 18:58:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-06 18:58:22,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:22,636 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 18:58:22,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:22,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:22,837 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:22,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:22,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1309849454, now seen corresponding path program 1 times [2024-11-06 18:58:22,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:22,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612524142] [2024-11-06 18:58:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:22,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-06 18:58:22,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:22,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612524142] [2024-11-06 18:58:22,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612524142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:22,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:22,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:58:22,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173351437] [2024-11-06 18:58:22,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:22,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:22,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:58:22,984 INFO L87 Difference]: Start difference. First operand 83321 states and 91277 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 18:58:23,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:23,901 INFO L93 Difference]: Finished difference Result 233224 states and 255346 transitions. [2024-11-06 18:58:23,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:23,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 361 [2024-11-06 18:58:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:24,112 INFO L225 Difference]: With dead ends: 233224 [2024-11-06 18:58:24,112 INFO L226 Difference]: Without dead ends: 149905 [2024-11-06 18:58:24,189 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 18:58:24,189 INFO L432 NwaCegarLoop]: 542 mSDtfsCounter, 277 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:24,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 783 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:58:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149905 states. [2024-11-06 18:58:25,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149905 to 149496. [2024-11-06 18:58:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149496 states, 149495 states have (on average 1.0883976052710793) internal successors, (162710), 149495 states have internal predecessors, (162710), 0 states have call successors, (0), 0 states 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 18:58:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149496 states to 149496 states and 162710 transitions. [2024-11-06 18:58:26,068 INFO L78 Accepts]: Start accepts. Automaton has 149496 states and 162710 transitions. Word has length 361 [2024-11-06 18:58:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:26,069 INFO L471 AbstractCegarLoop]: Abstraction has 149496 states and 162710 transitions. [2024-11-06 18:58:26,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 18:58:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 149496 states and 162710 transitions. [2024-11-06 18:58:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-06 18:58:26,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:26,422 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:26,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 18:58:26,422 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:26,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:26,422 INFO L85 PathProgramCache]: Analyzing trace with hash 65042309, now seen corresponding path program 1 times [2024-11-06 18:58:26,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195783030] [2024-11-06 18:58:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:26,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-06 18:58:26,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:26,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195783030] [2024-11-06 18:58:26,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195783030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:26,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:26,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:58:26,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002622783] [2024-11-06 18:58:26,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:26,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:26,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:26,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:26,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:58:26,641 INFO L87 Difference]: Start difference. First operand 149496 states and 162710 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 18:58:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:27,898 INFO L93 Difference]: Finished difference Result 267340 states and 290545 transitions. [2024-11-06 18:58:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:27,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 370 [2024-11-06 18:58:27,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:28,058 INFO L225 Difference]: With dead ends: 267340 [2024-11-06 18:58:28,058 INFO L226 Difference]: Without dead ends: 117440 [2024-11-06 18:58:28,118 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 18:58:28,118 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 229 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:28,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 313 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:58:28,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117440 states. [2024-11-06 18:58:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117440 to 112143. [2024-11-06 18:58:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112143 states, 112142 states have (on average 1.0721763478446968) internal successors, (120236), 112142 states have internal predecessors, (120236), 0 states have call successors, (0), 0 states 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 18:58:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112143 states to 112143 states and 120236 transitions. [2024-11-06 18:58:29,495 INFO L78 Accepts]: Start accepts. Automaton has 112143 states and 120236 transitions. Word has length 370 [2024-11-06 18:58:29,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:29,495 INFO L471 AbstractCegarLoop]: Abstraction has 112143 states and 120236 transitions. [2024-11-06 18:58:29,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 18:58:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 112143 states and 120236 transitions. [2024-11-06 18:58:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-06 18:58:29,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:29,546 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-06 18:58:29,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 18:58:29,546 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:29,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:29,547 INFO L85 PathProgramCache]: Analyzing trace with hash 661533766, now seen corresponding path program 1 times [2024-11-06 18:58:29,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:29,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581906169] [2024-11-06 18:58:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:29,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-06 18:58:30,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:30,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581906169] [2024-11-06 18:58:30,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581906169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:30,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:30,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:58:30,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102476711] [2024-11-06 18:58:30,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:30,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:58:30,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:30,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:58:30,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:58:30,055 INFO L87 Difference]: Start difference. First operand 112143 states and 120236 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 18:58:31,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:31,404 INFO L93 Difference]: Finished difference Result 232273 states and 249176 transitions. [2024-11-06 18:58:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:58:31,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 377 [2024-11-06 18:58:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:31,568 INFO L225 Difference]: With dead ends: 232273 [2024-11-06 18:58:31,568 INFO L226 Difference]: Without dead ends: 118508 [2024-11-06 18:58:31,618 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 18:58:31,618 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 339 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:31,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 95 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 18:58:31,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118508 states. [2024-11-06 18:58:32,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118508 to 111957. [2024-11-06 18:58:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111957 states, 111956 states have (on average 1.0718228589803136) internal successors, (119997), 111956 states have internal predecessors, (119997), 0 states have call successors, (0), 0 states 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 18:58:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111957 states to 111957 states and 119997 transitions. [2024-11-06 18:58:33,092 INFO L78 Accepts]: Start accepts. Automaton has 111957 states and 119997 transitions. Word has length 377 [2024-11-06 18:58:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:33,093 INFO L471 AbstractCegarLoop]: Abstraction has 111957 states and 119997 transitions. [2024-11-06 18:58:33,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 18:58:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 111957 states and 119997 transitions. [2024-11-06 18:58:33,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-06 18:58:33,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:33,154 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:58:33,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 18:58:33,155 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:33,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash 593019387, now seen corresponding path program 1 times [2024-11-06 18:58:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:33,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860793154] [2024-11-06 18:58:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:33,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-06 18:58:34,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:34,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860793154] [2024-11-06 18:58:34,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860793154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:34,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846363741] [2024-11-06 18:58:34,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:34,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:34,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:34,019 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:58:34,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-06 18:58:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:34,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 18:58:34,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-06 18:58:34,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:34,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846363741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:34,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:34,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:34,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182959749] [2024-11-06 18:58:34,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:34,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:34,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:34,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:34,331 INFO L87 Difference]: Start difference. First operand 111957 states and 119997 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:58:35,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:35,021 INFO L93 Difference]: Finished difference Result 221071 states and 236932 transitions. [2024-11-06 18:58:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:58:35,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2024-11-06 18:58:35,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:35,160 INFO L225 Difference]: With dead ends: 221071 [2024-11-06 18:58:35,160 INFO L226 Difference]: Without dead ends: 109116 [2024-11-06 18:58:35,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:58:35,217 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 147 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:35,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 794 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:58:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109116 states. [2024-11-06 18:58:36,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109116 to 108904. [2024-11-06 18:58:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108904 states, 108903 states have (on average 1.0658475891389585) internal successors, (116074), 108903 states have internal predecessors, (116074), 0 states have call successors, (0), 0 states 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 18:58:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108904 states to 108904 states and 116074 transitions. [2024-11-06 18:58:36,335 INFO L78 Accepts]: Start accepts. Automaton has 108904 states and 116074 transitions. Word has length 386 [2024-11-06 18:58:36,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:36,336 INFO L471 AbstractCegarLoop]: Abstraction has 108904 states and 116074 transitions. [2024-11-06 18:58:36,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:58:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 108904 states and 116074 transitions. [2024-11-06 18:58:36,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-06 18:58:36,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:36,383 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:58:36,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:36,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:36,585 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:36,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1421326569, now seen corresponding path program 1 times [2024-11-06 18:58:36,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:36,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741769084] [2024-11-06 18:58:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:36,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-06 18:58:37,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:37,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741769084] [2024-11-06 18:58:37,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741769084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:37,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:37,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:58:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836235074] [2024-11-06 18:58:37,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:37,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:58:37,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:37,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:58:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:58:37,241 INFO L87 Difference]: Start difference. First operand 108904 states and 116074 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 18:58:38,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:38,636 INFO L93 Difference]: Finished difference Result 221054 states and 235493 transitions. [2024-11-06 18:58:38,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:58:38,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 391 [2024-11-06 18:58:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:38,771 INFO L225 Difference]: With dead ends: 221054 [2024-11-06 18:58:38,771 INFO L226 Difference]: Without dead ends: 112152 [2024-11-06 18:58:38,811 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 18:58:38,811 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 325 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:38,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 143 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:58:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112152 states. [2024-11-06 18:58:39,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112152 to 107686. [2024-11-06 18:58:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107686 states, 107685 states have (on average 1.0643079351813158) internal successors, (114610), 107685 states have internal predecessors, (114610), 0 states have call successors, (0), 0 states 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 18:58:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107686 states to 107686 states and 114610 transitions. [2024-11-06 18:58:40,017 INFO L78 Accepts]: Start accepts. Automaton has 107686 states and 114610 transitions. Word has length 391 [2024-11-06 18:58:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:40,018 INFO L471 AbstractCegarLoop]: Abstraction has 107686 states and 114610 transitions. [2024-11-06 18:58:40,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 18:58:40,018 INFO L276 IsEmpty]: Start isEmpty. Operand 107686 states and 114610 transitions. [2024-11-06 18:58:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-06 18:58:40,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:40,070 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:58:40,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 18:58:40,070 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1770963971, now seen corresponding path program 1 times [2024-11-06 18:58:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397333025] [2024-11-06 18:58:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-06 18:58:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:40,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397333025] [2024-11-06 18:58:40,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397333025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:58:40,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968886075] [2024-11-06 18:58:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:40,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:58:40,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:58:40,714 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:58:40,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-06 18:58:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:40,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 18:58:40,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:58:40,989 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-06 18:58:40,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:58:40,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968886075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:40,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:58:40,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 18:58:40,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478189331] [2024-11-06 18:58:40,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:40,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:58:40,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:40,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:58:40,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 18:58:40,990 INFO L87 Difference]: Start difference. First operand 107686 states and 114610 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 18:58:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:58:42,548 INFO L93 Difference]: Finished difference Result 315831 states and 336405 transitions. [2024-11-06 18:58:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:58:42,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 419 [2024-11-06 18:58:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:58:42,833 INFO L225 Difference]: With dead ends: 315831 [2024-11-06 18:58:42,834 INFO L226 Difference]: Without dead ends: 207944 [2024-11-06 18:58:42,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 18:58:42,897 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 720 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 18:58:42,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 293 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 18:58:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207944 states. [2024-11-06 18:58:45,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207944 to 198600. [2024-11-06 18:58:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198600 states, 198599 states have (on average 1.064673034607425) internal successors, (211443), 198599 states have internal predecessors, (211443), 0 states have call successors, (0), 0 states 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 18:58:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198600 states to 198600 states and 211443 transitions. [2024-11-06 18:58:45,514 INFO L78 Accepts]: Start accepts. Automaton has 198600 states and 211443 transitions. Word has length 419 [2024-11-06 18:58:45,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:58:45,515 INFO L471 AbstractCegarLoop]: Abstraction has 198600 states and 211443 transitions. [2024-11-06 18:58:45,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 18:58:45,515 INFO L276 IsEmpty]: Start isEmpty. Operand 198600 states and 211443 transitions. [2024-11-06 18:58:45,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-06 18:58:45,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:58:45,561 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 18:58:45,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-06 18:58:45,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-06 18:58:45,766 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:58:45,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:58:45,766 INFO L85 PathProgramCache]: Analyzing trace with hash 57324800, now seen corresponding path program 1 times [2024-11-06 18:58:45,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:58:45,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533009385] [2024-11-06 18:58:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:58:45,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:58:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:58:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-06 18:58:46,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:58:46,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533009385] [2024-11-06 18:58:46,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533009385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:58:46,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:58:46,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:58:46,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202331869] [2024-11-06 18:58:46,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:58:46,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:58:46,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:58:46,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:58:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:58:46,533 INFO L87 Difference]: Start difference. First operand 198600 states and 211443 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)