./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'c3533435b3574844c676ebf9ef5728195d9e5ba69ebd57baed9e55717a70044d'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3533435b3574844c676ebf9ef5728195d9e5ba69ebd57baed9e55717a70044d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:48:35,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:48:35,680 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:48:35,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:48:35,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:48:35,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:48:35,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:48:35,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:48:35,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:48:35,720 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:48:35,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:48:35,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:48:35,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:48:35,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:48:35,722 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:48:35,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:48:35,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:48:35,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:48:35,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:48:35,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:48:35,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:48:35,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:48:35,723 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:48:35,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:48:35,724 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:48:35,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:48:35,724 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:48:35,724 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:48:35,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:48:35,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:35,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:48:35,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:48:35,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:48:35,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:48:35,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:48:35,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:48:35,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:48:35,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:48:35,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:48:35,726 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3533435b3574844c676ebf9ef5728195d9e5ba69ebd57baed9e55717a70044d [2024-11-07 03:48:36,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:48:36,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:48:36,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:48:36,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:48:36,063 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:48:36,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2024-11-07 03:48:37,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:48:37,651 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:48:37,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2024-11-07 03:48:37,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3dbd406c9/d981be286b9448d19948b8d5a64776bb/FLAGbab0e2a75 [2024-11-07 03:48:37,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3dbd406c9/d981be286b9448d19948b8d5a64776bb [2024-11-07 03:48:37,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:48:37,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:48:37,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:37,695 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:48:37,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:48:37,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:37" (1/1) ... [2024-11-07 03:48:37,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32609d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:37, skipping insertion in model container [2024-11-07 03:48:37,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:37" (1/1) ... [2024-11-07 03:48:37,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:48:37,881 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c[1258,1271] [2024-11-07 03:48:38,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:38,071 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:48:38,080 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c[1258,1271] [2024-11-07 03:48:38,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:38,206 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:48:38,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38 WrapperNode [2024-11-07 03:48:38,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:38,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:38,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:48:38,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:48:38,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,430 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1476 [2024-11-07 03:48:38,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:38,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:48:38,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:48:38,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:48:38,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,528 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 03:48:38,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:48:38,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:48:38,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:48:38,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:48:38,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (1/1) ... [2024-11-07 03:48:38,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:38,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 03:48:38,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 03:48:38,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:48:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:48:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:48:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:48:39,007 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:48:39,009 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:48:40,659 INFO L? ?]: Removed 723 outVars from TransFormulas that were not future-live. [2024-11-07 03:48:40,659 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:48:40,684 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:48:40,687 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:48:40,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:40 BoogieIcfgContainer [2024-11-07 03:48:40,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:48:40,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:48:40,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:48:40,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:48:40,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:37" (1/3) ... [2024-11-07 03:48:40,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2569a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:40, skipping insertion in model container [2024-11-07 03:48:40,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:38" (2/3) ... [2024-11-07 03:48:40,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2569a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:40, skipping insertion in model container [2024-11-07 03:48:40,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:40" (3/3) ... [2024-11-07 03:48:40,698 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2024-11-07 03:48:40,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:48:40,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:48:40,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:48:40,784 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;@2ac536a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:48:40,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:48:40,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 344 states have (on average 1.497093023255814) internal successors, (515), 345 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 03:48:40,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:40,798 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] [2024-11-07 03:48:40,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:40,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -288881028, now seen corresponding path program 1 times [2024-11-07 03:48:40,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:40,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148643942] [2024-11-07 03:48:40,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:40,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:41,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148643942] [2024-11-07 03:48:41,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148643942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:41,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:41,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:41,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419073959] [2024-11-07 03:48:41,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:41,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:41,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:41,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:41,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:41,706 INFO L87 Difference]: Start difference. First operand has 346 states, 344 states have (on average 1.497093023255814) internal successors, (515), 345 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:41,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:41,810 INFO L93 Difference]: Finished difference Result 565 states and 843 transitions. [2024-11-07 03:48:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-07 03:48:41,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:41,826 INFO L225 Difference]: With dead ends: 565 [2024-11-07 03:48:41,826 INFO L226 Difference]: Without dead ends: 345 [2024-11-07 03:48:41,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:41,831 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:41,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1521 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:41,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-07 03:48:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-07 03:48:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 344 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2024-11-07 03:48:41,881 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 85 [2024-11-07 03:48:41,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:41,882 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2024-11-07 03:48:41,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:41,882 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2024-11-07 03:48:41,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 03:48:41,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:41,886 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] [2024-11-07 03:48:41,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:48:41,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:41,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:41,887 INFO L85 PathProgramCache]: Analyzing trace with hash -363681603, now seen corresponding path program 1 times [2024-11-07 03:48:41,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:41,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152425915] [2024-11-07 03:48:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:41,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:42,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:42,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152425915] [2024-11-07 03:48:42,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152425915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:42,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:42,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:42,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922264986] [2024-11-07 03:48:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:42,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:42,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:42,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:42,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:42,185 INFO L87 Difference]: Start difference. First operand 345 states and 513 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:42,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:42,245 INFO L93 Difference]: Finished difference Result 566 states and 841 transitions. [2024-11-07 03:48:42,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:42,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 03:48:42,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:42,249 INFO L225 Difference]: With dead ends: 566 [2024-11-07 03:48:42,249 INFO L226 Difference]: Without dead ends: 347 [2024-11-07 03:48:42,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:42,252 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:42,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1517 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:42,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-07 03:48:42,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-07 03:48:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4884393063583814) internal successors, (515), 346 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:42,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 515 transitions. [2024-11-07 03:48:42,278 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 515 transitions. Word has length 86 [2024-11-07 03:48:42,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:42,279 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 515 transitions. [2024-11-07 03:48:42,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:42,279 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 515 transitions. [2024-11-07 03:48:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 03:48:42,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:42,280 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] [2024-11-07 03:48:42,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:48:42,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:42,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:42,281 INFO L85 PathProgramCache]: Analyzing trace with hash 512806773, now seen corresponding path program 1 times [2024-11-07 03:48:42,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:42,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248095440] [2024-11-07 03:48:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:42,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:43,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:43,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248095440] [2024-11-07 03:48:43,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248095440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:43,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:43,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:43,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271202045] [2024-11-07 03:48:43,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:43,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:43,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:43,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:43,060 INFO L87 Difference]: Start difference. First operand 347 states and 515 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,286 INFO L93 Difference]: Finished difference Result 599 states and 889 transitions. [2024-11-07 03:48:43,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-07 03:48:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,292 INFO L225 Difference]: With dead ends: 599 [2024-11-07 03:48:43,292 INFO L226 Difference]: Without dead ends: 378 [2024-11-07 03:48:43,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:43,293 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 518 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2457 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:43,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-07 03:48:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2024-11-07 03:48:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 1.4840425531914894) internal successors, (558), 376 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 558 transitions. [2024-11-07 03:48:43,311 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 558 transitions. Word has length 87 [2024-11-07 03:48:43,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,311 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 558 transitions. [2024-11-07 03:48:43,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 558 transitions. [2024-11-07 03:48:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 03:48:43,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,313 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] [2024-11-07 03:48:43,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:48:43,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,313 INFO L85 PathProgramCache]: Analyzing trace with hash 281686400, now seen corresponding path program 1 times [2024-11-07 03:48:43,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072623163] [2024-11-07 03:48:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:43,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:43,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072623163] [2024-11-07 03:48:43,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072623163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:43,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:43,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:43,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286485532] [2024-11-07 03:48:43,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:43,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:43,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:43,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:43,998 INFO L87 Difference]: Start difference. First operand 377 states and 558 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:44,157 INFO L93 Difference]: Finished difference Result 607 states and 896 transitions. [2024-11-07 03:48:44,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:44,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 03:48:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:44,160 INFO L225 Difference]: With dead ends: 607 [2024-11-07 03:48:44,160 INFO L226 Difference]: Without dead ends: 379 [2024-11-07 03:48:44,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:44,161 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 512 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:44,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 2469 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:44,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-07 03:48:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2024-11-07 03:48:44,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.4801061007957559) internal successors, (558), 377 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 558 transitions. [2024-11-07 03:48:44,176 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 558 transitions. Word has length 88 [2024-11-07 03:48:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:44,176 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 558 transitions. [2024-11-07 03:48:44,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 558 transitions. [2024-11-07 03:48:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 03:48:44,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:44,181 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] [2024-11-07 03:48:44,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:48:44,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:44,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash -373971900, now seen corresponding path program 1 times [2024-11-07 03:48:44,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:44,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640503901] [2024-11-07 03:48:44,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:44,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:44,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:44,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640503901] [2024-11-07 03:48:44,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640503901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:44,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:44,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:48:44,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262073088] [2024-11-07 03:48:44,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:44,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:44,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:44,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:44,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:44,832 INFO L87 Difference]: Start difference. First operand 378 states and 558 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:45,099 INFO L93 Difference]: Finished difference Result 723 states and 1066 transitions. [2024-11-07 03:48:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:45,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 03:48:45,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:45,102 INFO L225 Difference]: With dead ends: 723 [2024-11-07 03:48:45,104 INFO L226 Difference]: Without dead ends: 502 [2024-11-07 03:48:45,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:48:45,106 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 870 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 3443 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:45,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 3443 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-07 03:48:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 381. [2024-11-07 03:48:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4763157894736842) internal successors, (561), 380 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 561 transitions. [2024-11-07 03:48:45,124 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 561 transitions. Word has length 88 [2024-11-07 03:48:45,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:45,124 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 561 transitions. [2024-11-07 03:48:45,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,125 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 561 transitions. [2024-11-07 03:48:45,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 03:48:45,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:45,126 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] [2024-11-07 03:48:45,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:48:45,127 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:45,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:45,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1233342294, now seen corresponding path program 1 times [2024-11-07 03:48:45,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:45,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662512114] [2024-11-07 03:48:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662512114] [2024-11-07 03:48:45,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662512114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:45,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:45,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806040915] [2024-11-07 03:48:45,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:45,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:45,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:45,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:45,416 INFO L87 Difference]: Start difference. First operand 381 states and 561 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:45,613 INFO L93 Difference]: Finished difference Result 807 states and 1186 transitions. [2024-11-07 03:48:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:45,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-07 03:48:45,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:45,617 INFO L225 Difference]: With dead ends: 807 [2024-11-07 03:48:45,617 INFO L226 Difference]: Without dead ends: 571 [2024-11-07 03:48:45,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:45,618 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 1066 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:45,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 2461 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-07 03:48:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 382. [2024-11-07 03:48:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.4724409448818898) internal successors, (561), 381 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 561 transitions. [2024-11-07 03:48:45,645 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 561 transitions. Word has length 89 [2024-11-07 03:48:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:45,646 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 561 transitions. [2024-11-07 03:48:45,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 561 transitions. [2024-11-07 03:48:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 03:48:45,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:45,647 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] [2024-11-07 03:48:45,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:48:45,647 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:45,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash -705267193, now seen corresponding path program 1 times [2024-11-07 03:48:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:45,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112430509] [2024-11-07 03:48:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:46,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:46,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112430509] [2024-11-07 03:48:46,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112430509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:46,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:46,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:46,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403672946] [2024-11-07 03:48:46,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:46,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:46,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:46,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:46,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:46,032 INFO L87 Difference]: Start difference. First operand 382 states and 561 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:46,190 INFO L93 Difference]: Finished difference Result 657 states and 958 transitions. [2024-11-07 03:48:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-07 03:48:46,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:46,193 INFO L225 Difference]: With dead ends: 657 [2024-11-07 03:48:46,194 INFO L226 Difference]: Without dead ends: 416 [2024-11-07 03:48:46,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:46,196 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 596 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:46,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 2476 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:46,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-07 03:48:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 383. [2024-11-07 03:48:46,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.468586387434555) internal successors, (561), 382 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 561 transitions. [2024-11-07 03:48:46,208 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 561 transitions. Word has length 90 [2024-11-07 03:48:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:46,208 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 561 transitions. [2024-11-07 03:48:46,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 561 transitions. [2024-11-07 03:48:46,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 03:48:46,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:46,210 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] [2024-11-07 03:48:46,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:48:46,210 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:46,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:46,211 INFO L85 PathProgramCache]: Analyzing trace with hash 108715939, now seen corresponding path program 1 times [2024-11-07 03:48:46,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:46,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886251735] [2024-11-07 03:48:46,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:46,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:46,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:46,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886251735] [2024-11-07 03:48:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886251735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:46,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:46,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:46,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054016564] [2024-11-07 03:48:46,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:46,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:46,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:46,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:46,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:46,556 INFO L87 Difference]: Start difference. First operand 383 states and 561 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:46,708 INFO L93 Difference]: Finished difference Result 687 states and 1000 transitions. [2024-11-07 03:48:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:46,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-07 03:48:46,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:46,711 INFO L225 Difference]: With dead ends: 687 [2024-11-07 03:48:46,711 INFO L226 Difference]: Without dead ends: 441 [2024-11-07 03:48:46,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:46,713 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 666 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:46,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 2471 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:46,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-07 03:48:46,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 384. [2024-11-07 03:48:46,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 383 states have (on average 1.4647519582245432) internal successors, (561), 383 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 561 transitions. [2024-11-07 03:48:46,746 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 561 transitions. Word has length 91 [2024-11-07 03:48:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:46,746 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 561 transitions. [2024-11-07 03:48:46,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 561 transitions. [2024-11-07 03:48:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 03:48:46,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:46,747 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] [2024-11-07 03:48:46,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 03:48:46,748 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:46,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:46,748 INFO L85 PathProgramCache]: Analyzing trace with hash 354664334, now seen corresponding path program 1 times [2024-11-07 03:48:46,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:46,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318987029] [2024-11-07 03:48:46,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:46,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:47,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:47,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318987029] [2024-11-07 03:48:47,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318987029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:47,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:47,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:47,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955512005] [2024-11-07 03:48:47,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:47,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:47,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:47,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:47,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:47,039 INFO L87 Difference]: Start difference. First operand 384 states and 561 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:47,209 INFO L93 Difference]: Finished difference Result 829 states and 1210 transitions. [2024-11-07 03:48:47,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:47,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-07 03:48:47,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:47,213 INFO L225 Difference]: With dead ends: 829 [2024-11-07 03:48:47,213 INFO L226 Difference]: Without dead ends: 578 [2024-11-07 03:48:47,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:47,219 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 1072 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:47,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 2476 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-07 03:48:47,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 385. [2024-11-07 03:48:47,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.4609375) internal successors, (561), 384 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 561 transitions. [2024-11-07 03:48:47,238 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 561 transitions. Word has length 92 [2024-11-07 03:48:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:47,238 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 561 transitions. [2024-11-07 03:48:47,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 561 transitions. [2024-11-07 03:48:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 03:48:47,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:47,239 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] [2024-11-07 03:48:47,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 03:48:47,240 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:47,240 INFO L85 PathProgramCache]: Analyzing trace with hash -346539620, now seen corresponding path program 1 times [2024-11-07 03:48:47,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:47,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477411528] [2024-11-07 03:48:47,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:47,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477411528] [2024-11-07 03:48:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477411528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:47,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:47,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848886431] [2024-11-07 03:48:47,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:47,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:47,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:47,457 INFO L87 Difference]: Start difference. First operand 385 states and 561 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:47,552 INFO L93 Difference]: Finished difference Result 798 states and 1168 transitions. [2024-11-07 03:48:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:47,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-07 03:48:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:47,555 INFO L225 Difference]: With dead ends: 798 [2024-11-07 03:48:47,555 INFO L226 Difference]: Without dead ends: 547 [2024-11-07 03:48:47,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:47,557 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 1025 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:47,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1497 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-07 03:48:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 366. [2024-11-07 03:48:47,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.4684931506849315) internal successors, (536), 365 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 536 transitions. [2024-11-07 03:48:47,567 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 536 transitions. Word has length 93 [2024-11-07 03:48:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:47,567 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 536 transitions. [2024-11-07 03:48:47,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 536 transitions. [2024-11-07 03:48:47,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-07 03:48:47,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:47,570 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:47,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 03:48:47,570 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:47,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:47,571 INFO L85 PathProgramCache]: Analyzing trace with hash 920549707, now seen corresponding path program 1 times [2024-11-07 03:48:47,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:47,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029742276] [2024-11-07 03:48:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:48,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:48,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029742276] [2024-11-07 03:48:48,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029742276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:48,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058259059] [2024-11-07 03:48:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:48,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:48,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:48,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:48:48,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 03:48:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:48,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 03:48:48,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:48:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:49,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:48:49,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058259059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:49,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:48:49,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-07 03:48:49,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539510809] [2024-11-07 03:48:49,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:49,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:49,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:49,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:49,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:49,546 INFO L87 Difference]: Start difference. First operand 366 states and 536 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:49,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:49,946 INFO L93 Difference]: Finished difference Result 586 states and 862 transitions. [2024-11-07 03:48:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:49,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2024-11-07 03:48:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:49,949 INFO L225 Difference]: With dead ends: 586 [2024-11-07 03:48:49,949 INFO L226 Difference]: Without dead ends: 365 [2024-11-07 03:48:49,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:49,950 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 388 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:49,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 601 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:48:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-07 03:48:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-07 03:48:49,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4642857142857142) internal successors, (533), 364 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 533 transitions. [2024-11-07 03:48:49,960 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 533 transitions. Word has length 197 [2024-11-07 03:48:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:49,961 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 533 transitions. [2024-11-07 03:48:49,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 533 transitions. [2024-11-07 03:48:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-07 03:48:49,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:49,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:49,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 03:48:50,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 03:48:50,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:50,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1323076601, now seen corresponding path program 1 times [2024-11-07 03:48:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:50,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447387074] [2024-11-07 03:48:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:50,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:51,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:51,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447387074] [2024-11-07 03:48:51,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447387074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:51,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:51,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:51,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844890081] [2024-11-07 03:48:51,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:51,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:51,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:51,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:51,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:51,269 INFO L87 Difference]: Start difference. First operand 365 states and 533 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:51,617 INFO L93 Difference]: Finished difference Result 705 states and 1032 transitions. [2024-11-07 03:48:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:51,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2024-11-07 03:48:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:51,620 INFO L225 Difference]: With dead ends: 705 [2024-11-07 03:48:51,621 INFO L226 Difference]: Without dead ends: 477 [2024-11-07 03:48:51,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:51,622 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 787 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:51,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1774 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:51,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-07 03:48:51,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 431. [2024-11-07 03:48:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4627906976744185) internal successors, (629), 430 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 629 transitions. [2024-11-07 03:48:51,633 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 629 transitions. Word has length 198 [2024-11-07 03:48:51,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:51,633 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 629 transitions. [2024-11-07 03:48:51,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 629 transitions. [2024-11-07 03:48:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-07 03:48:51,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:51,636 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:51,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 03:48:51,636 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:51,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:51,637 INFO L85 PathProgramCache]: Analyzing trace with hash 973882016, now seen corresponding path program 1 times [2024-11-07 03:48:51,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:51,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028967116] [2024-11-07 03:48:51,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:51,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:52,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:52,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028967116] [2024-11-07 03:48:52,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028967116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:52,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:52,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:52,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112251861] [2024-11-07 03:48:52,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:52,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:52,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:52,851 INFO L87 Difference]: Start difference. First operand 431 states and 629 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:53,405 INFO L93 Difference]: Finished difference Result 697 states and 1020 transitions. [2024-11-07 03:48:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:53,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2024-11-07 03:48:53,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:53,408 INFO L225 Difference]: With dead ends: 697 [2024-11-07 03:48:53,408 INFO L226 Difference]: Without dead ends: 477 [2024-11-07 03:48:53,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:53,410 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 760 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:53,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 885 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:48:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-07 03:48:53,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 432. [2024-11-07 03:48:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 431 states have (on average 1.4617169373549883) internal successors, (630), 431 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 630 transitions. [2024-11-07 03:48:53,423 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 630 transitions. Word has length 199 [2024-11-07 03:48:53,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:53,425 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 630 transitions. [2024-11-07 03:48:53,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:53,425 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 630 transitions. [2024-11-07 03:48:53,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-07 03:48:53,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:53,427 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:53,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 03:48:53,428 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:53,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:53,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1515292036, now seen corresponding path program 1 times [2024-11-07 03:48:53,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:53,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213847003] [2024-11-07 03:48:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:53,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:54,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:54,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213847003] [2024-11-07 03:48:54,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213847003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:54,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:54,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857524624] [2024-11-07 03:48:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:54,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:54,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:54,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:54,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:54,348 INFO L87 Difference]: Start difference. First operand 432 states and 630 transitions. Second operand has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:54,764 INFO L93 Difference]: Finished difference Result 835 states and 1216 transitions. [2024-11-07 03:48:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2024-11-07 03:48:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:54,769 INFO L225 Difference]: With dead ends: 835 [2024-11-07 03:48:54,769 INFO L226 Difference]: Without dead ends: 615 [2024-11-07 03:48:54,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:54,770 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 1110 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:54,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1477 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:48:54,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-07 03:48:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 542. [2024-11-07 03:48:54,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 1.4639556377079483) internal successors, (792), 541 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 792 transitions. [2024-11-07 03:48:54,785 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 792 transitions. Word has length 200 [2024-11-07 03:48:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:54,786 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 792 transitions. [2024-11-07 03:48:54,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 792 transitions. [2024-11-07 03:48:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-07 03:48:54,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:54,788 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:54,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 03:48:54,788 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:54,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash -601620675, now seen corresponding path program 1 times [2024-11-07 03:48:54,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:54,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151694117] [2024-11-07 03:48:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:54,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:55,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:55,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151694117] [2024-11-07 03:48:55,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151694117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:55,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:55,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:55,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507336989] [2024-11-07 03:48:55,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:55,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:55,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:55,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:55,821 INFO L87 Difference]: Start difference. First operand 542 states and 792 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:56,374 INFO L93 Difference]: Finished difference Result 764 states and 1119 transitions. [2024-11-07 03:48:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:56,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 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 201 [2024-11-07 03:48:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:56,378 INFO L225 Difference]: With dead ends: 764 [2024-11-07 03:48:56,378 INFO L226 Difference]: Without dead ends: 544 [2024-11-07 03:48:56,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:56,380 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 896 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:56,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 878 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:48:56,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-07 03:48:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2024-11-07 03:48:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.46309963099631) internal successors, (793), 542 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 793 transitions. [2024-11-07 03:48:56,394 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 793 transitions. Word has length 201 [2024-11-07 03:48:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:56,395 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 793 transitions. [2024-11-07 03:48:56,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 793 transitions. [2024-11-07 03:48:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-07 03:48:56,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:56,398 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:56,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 03:48:56,398 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:56,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash 556901287, now seen corresponding path program 1 times [2024-11-07 03:48:56,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:56,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815979652] [2024-11-07 03:48:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:56,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:58,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:58,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815979652] [2024-11-07 03:48:58,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815979652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:58,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:58,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:58,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590439682] [2024-11-07 03:48:58,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:58,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:58,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:58,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:58,621 INFO L87 Difference]: Start difference. First operand 543 states and 793 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:58,673 INFO L93 Difference]: Finished difference Result 854 states and 1252 transitions. [2024-11-07 03:48:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-11-07 03:48:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:58,676 INFO L225 Difference]: With dead ends: 854 [2024-11-07 03:48:58,676 INFO L226 Difference]: Without dead ends: 547 [2024-11-07 03:48:58,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:58,678 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 382 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:58,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1500 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:58,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-07 03:48:58,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-07 03:48:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 546 states have (on average 1.4597069597069596) internal successors, (797), 546 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:58,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 797 transitions. [2024-11-07 03:48:58,692 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 797 transitions. Word has length 202 [2024-11-07 03:48:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:58,693 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 797 transitions. [2024-11-07 03:48:58,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 797 transitions. [2024-11-07 03:48:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-07 03:48:58,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:58,696 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:58,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 03:48:58,696 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:58,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1493615647, now seen corresponding path program 1 times [2024-11-07 03:48:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:58,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635703664] [2024-11-07 03:48:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:58,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:01,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:01,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635703664] [2024-11-07 03:49:01,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635703664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:01,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:01,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390842611] [2024-11-07 03:49:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:01,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:01,931 INFO L87 Difference]: Start difference. First operand 547 states and 797 transitions. Second operand has 11 states, 11 states have (on average 18.454545454545453) internal successors, (203), 11 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:02,219 INFO L93 Difference]: Finished difference Result 978 states and 1420 transitions. [2024-11-07 03:49:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:49:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.454545454545453) internal successors, (203), 11 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2024-11-07 03:49:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:02,222 INFO L225 Difference]: With dead ends: 978 [2024-11-07 03:49:02,222 INFO L226 Difference]: Without dead ends: 672 [2024-11-07 03:49:02,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:49:02,224 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 1024 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:02,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2616 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:02,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-07 03:49:02,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 656. [2024-11-07 03:49:02,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.4442748091603053) internal successors, (946), 655 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:02,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 946 transitions. [2024-11-07 03:49:02,242 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 946 transitions. Word has length 203 [2024-11-07 03:49:02,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:02,243 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 946 transitions. [2024-11-07 03:49:02,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.454545454545453) internal successors, (203), 11 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:02,243 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 946 transitions. [2024-11-07 03:49:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-07 03:49:02,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:02,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:02,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 03:49:02,246 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:02,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:02,246 INFO L85 PathProgramCache]: Analyzing trace with hash 45112710, now seen corresponding path program 1 times [2024-11-07 03:49:02,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:02,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226385477] [2024-11-07 03:49:02,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:02,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:05,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:05,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226385477] [2024-11-07 03:49:05,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226385477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:05,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327211631] [2024-11-07 03:49:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:05,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:05,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:05,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:05,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 03:49:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:06,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 03:49:06,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:07,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:07,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327211631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:07,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:07,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-07 03:49:07,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786387453] [2024-11-07 03:49:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:07,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:07,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:07,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:49:07,473 INFO L87 Difference]: Start difference. First operand 656 states and 946 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:08,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:08,035 INFO L93 Difference]: Finished difference Result 1104 states and 1600 transitions. [2024-11-07 03:49:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:49:08,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2024-11-07 03:49:08,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:08,038 INFO L225 Difference]: With dead ends: 1104 [2024-11-07 03:49:08,038 INFO L226 Difference]: Without dead ends: 656 [2024-11-07 03:49:08,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-07 03:49:08,040 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 731 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:08,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 879 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:49:08,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-07 03:49:08,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 656. [2024-11-07 03:49:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.4381679389312978) internal successors, (942), 655 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 942 transitions. [2024-11-07 03:49:08,057 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 942 transitions. Word has length 203 [2024-11-07 03:49:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:08,058 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 942 transitions. [2024-11-07 03:49:08,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:08,058 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 942 transitions. [2024-11-07 03:49:08,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-07 03:49:08,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:08,062 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:08,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 03:49:08,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 03:49:08,264 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:08,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:08,264 INFO L85 PathProgramCache]: Analyzing trace with hash 161548361, now seen corresponding path program 1 times [2024-11-07 03:49:08,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:08,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307069514] [2024-11-07 03:49:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:08,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:09,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:09,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307069514] [2024-11-07 03:49:09,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307069514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:09,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850250158] [2024-11-07 03:49:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:09,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:09,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:09,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:09,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 03:49:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:10,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-07 03:49:10,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:13,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:13,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850250158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:13,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:13,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2024-11-07 03:49:13,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011133152] [2024-11-07 03:49:13,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:13,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:13,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:13,189 INFO L87 Difference]: Start difference. First operand 656 states and 942 transitions. Second operand has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 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) [2024-11-07 03:49:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:14,579 INFO L93 Difference]: Finished difference Result 969 states and 1403 transitions. [2024-11-07 03:49:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:49:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 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 205 [2024-11-07 03:49:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:14,583 INFO L225 Difference]: With dead ends: 969 [2024-11-07 03:49:14,583 INFO L226 Difference]: Without dead ends: 664 [2024-11-07 03:49:14,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=694, Unknown=0, NotChecked=0, Total=812 [2024-11-07 03:49:14,585 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 1012 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:14,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 2098 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 03:49:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-07 03:49:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 662. [2024-11-07 03:49:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.4357034795763994) internal successors, (949), 661 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 949 transitions. [2024-11-07 03:49:14,602 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 949 transitions. Word has length 205 [2024-11-07 03:49:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:14,602 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 949 transitions. [2024-11-07 03:49:14,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 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) [2024-11-07 03:49:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 949 transitions. [2024-11-07 03:49:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-07 03:49:14,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:14,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:14,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 03:49:14,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:14,805 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:14,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2024220089, now seen corresponding path program 1 times [2024-11-07 03:49:14,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:14,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397783281] [2024-11-07 03:49:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:14,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:17,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:17,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397783281] [2024-11-07 03:49:17,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397783281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:17,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:17,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:49:17,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376611713] [2024-11-07 03:49:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:17,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:49:17,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:17,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:49:17,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:17,010 INFO L87 Difference]: Start difference. First operand 662 states and 949 transitions. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:17,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:17,127 INFO L93 Difference]: Finished difference Result 986 states and 1425 transitions. [2024-11-07 03:49:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:49:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2024-11-07 03:49:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:17,134 INFO L225 Difference]: With dead ends: 986 [2024-11-07 03:49:17,134 INFO L226 Difference]: Without dead ends: 672 [2024-11-07 03:49:17,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:49:17,137 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 378 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:17,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1940 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-07 03:49:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 662. [2024-11-07 03:49:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.4357034795763994) internal successors, (949), 661 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 949 transitions. [2024-11-07 03:49:17,156 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 949 transitions. Word has length 206 [2024-11-07 03:49:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:17,158 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 949 transitions. [2024-11-07 03:49:17,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 949 transitions. [2024-11-07 03:49:17,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-07 03:49:17,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:17,161 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:17,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 03:49:17,161 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:17,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:17,161 INFO L85 PathProgramCache]: Analyzing trace with hash -776952089, now seen corresponding path program 1 times [2024-11-07 03:49:17,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:17,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682812195] [2024-11-07 03:49:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:17,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:18,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682812195] [2024-11-07 03:49:18,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682812195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63836886] [2024-11-07 03:49:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:18,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:18,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:18,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:18,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 03:49:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:19,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-11-07 03:49:19,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:21,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:49:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63836886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:49:24,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:49:24,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19, 17] total 43 [2024-11-07 03:49:24,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957940848] [2024-11-07 03:49:24,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:49:24,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-07 03:49:24,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:24,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-07 03:49:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1652, Unknown=0, NotChecked=0, Total=1806 [2024-11-07 03:49:24,114 INFO L87 Difference]: Start difference. First operand 662 states and 949 transitions. Second operand has 43 states, 43 states have (on average 13.976744186046512) internal successors, (601), 43 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:26,030 INFO L93 Difference]: Finished difference Result 1167 states and 1687 transitions. [2024-11-07 03:49:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-07 03:49:26,030 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 13.976744186046512) internal successors, (601), 43 states have internal predecessors, (601), 0 states have call successors, (0), 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 206 [2024-11-07 03:49:26,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:26,034 INFO L225 Difference]: With dead ends: 1167 [2024-11-07 03:49:26,034 INFO L226 Difference]: Without dead ends: 900 [2024-11-07 03:49:26,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1467 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=748, Invalid=6224, Unknown=0, NotChecked=0, Total=6972 [2024-11-07 03:49:26,037 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 3448 mSDsluCounter, 10716 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 11185 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:26,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3448 Valid, 11185 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 03:49:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-07 03:49:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 884. [2024-11-07 03:49:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.433748584371461) internal successors, (1266), 883 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1266 transitions. [2024-11-07 03:49:26,055 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1266 transitions. Word has length 206 [2024-11-07 03:49:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:26,055 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1266 transitions. [2024-11-07 03:49:26,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 13.976744186046512) internal successors, (601), 43 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1266 transitions. [2024-11-07 03:49:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-07 03:49:26,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:26,058 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:26,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 03:49:26,258 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,SelfDestructingSolverStorable20 [2024-11-07 03:49:26,259 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:26,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1701790958, now seen corresponding path program 1 times [2024-11-07 03:49:26,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:26,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232580466] [2024-11-07 03:49:26,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:26,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:28,146 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:28,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232580466] [2024-11-07 03:49:28,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232580466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:28,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036892626] [2024-11-07 03:49:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:28,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:28,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:28,149 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:28,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 03:49:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:28,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-11-07 03:49:28,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:30,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:49:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:32,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036892626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:49:32,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:49:32,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 19] total 50 [2024-11-07 03:49:32,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077928758] [2024-11-07 03:49:32,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:49:32,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-07 03:49:32,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:32,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-07 03:49:32,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=2179, Unknown=0, NotChecked=0, Total=2450 [2024-11-07 03:49:32,610 INFO L87 Difference]: Start difference. First operand 884 states and 1266 transitions. Second operand has 50 states, 50 states have (on average 12.2) internal successors, (610), 50 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:36,299 INFO L93 Difference]: Finished difference Result 1836 states and 2646 transitions. [2024-11-07 03:49:36,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-07 03:49:36,301 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 12.2) internal successors, (610), 50 states have internal predecessors, (610), 0 states have call successors, (0), 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 207 [2024-11-07 03:49:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:36,305 INFO L225 Difference]: With dead ends: 1836 [2024-11-07 03:49:36,305 INFO L226 Difference]: Without dead ends: 1426 [2024-11-07 03:49:36,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3194 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1270, Invalid=9860, Unknown=0, NotChecked=0, Total=11130 [2024-11-07 03:49:36,309 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 6619 mSDsluCounter, 6520 mSDsCounter, 0 mSdLazyCounter, 5280 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6619 SdHoareTripleChecker+Valid, 6802 SdHoareTripleChecker+Invalid, 5303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 5280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:36,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6619 Valid, 6802 Invalid, 5303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 5280 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 03:49:36,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-11-07 03:49:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1155. [2024-11-07 03:49:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.438474870017331) internal successors, (1660), 1154 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1660 transitions. [2024-11-07 03:49:36,331 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1660 transitions. Word has length 207 [2024-11-07 03:49:36,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:36,332 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1660 transitions. [2024-11-07 03:49:36,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 12.2) internal successors, (610), 50 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:36,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1660 transitions. [2024-11-07 03:49:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-07 03:49:36,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:36,334 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:36,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 03:49:36,535 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,SelfDestructingSolverStorable21 [2024-11-07 03:49:36,535 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:36,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash 553939868, now seen corresponding path program 1 times [2024-11-07 03:49:36,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:36,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507257804] [2024-11-07 03:49:36,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:36,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:37,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507257804] [2024-11-07 03:49:37,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507257804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:37,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806458967] [2024-11-07 03:49:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:37,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:37,967 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:37,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 03:49:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:38,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-07 03:49:38,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 03:49:39,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:49:43,063 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_z_14 Int) (v_y_14 Int)) (or (not (= (mod |c_ULTIMATE.start_main_~state_29~0#1| 256) (+ (* v_z_14 255) (* v_y_14 256)))) (< v_z_14 1) (< 255 v_z_14))) (= (mod |c_ULTIMATE.start_main_~input_12~0#1| 256) 0) (= (mod |c_ULTIMATE.start_main_#t~bitwise105#1| 256) 0)) is different from false