./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.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_rotate32.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', 'd551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de'] 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_rotate32.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 d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:48:14,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:48:14,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:48:14,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:48:14,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:48:14,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:48:14,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:48:14,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:48:14,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:48:14,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:48:14,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:48:14,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:48:14,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:48:14,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:48:14,197 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:48:14,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:48:14,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:48:14,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:48:14,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:48:14,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:48:14,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:48:14,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:48:14,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:48:14,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:14,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:48:14,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:48:14,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:48:14,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:48:14,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:48:14,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:48:14,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:48:14,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:48:14,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:48:14,201 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 -> d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de [2024-11-07 03:48:14,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:48:14,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:48:14,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:48:14,517 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:48:14,517 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:48:14,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-07 03:48:15,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:48:16,140 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:48:16,141 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-07 03:48:16,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2987ea297/f0f7282f20a64c05afb515c5db0bbd36/FLAGc49c5ea05 [2024-11-07 03:48:16,175 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2987ea297/f0f7282f20a64c05afb515c5db0bbd36 [2024-11-07 03:48:16,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:48:16,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:48:16,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:16,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:48:16,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:48:16,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef07341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16, skipping insertion in model container [2024-11-07 03:48:16,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:48:16,360 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_rotate32.c[1258,1271] [2024-11-07 03:48:16,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:16,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:48:16,472 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_rotate32.c[1258,1271] [2024-11-07 03:48:16,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:16,551 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:48:16,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16 WrapperNode [2024-11-07 03:48:16,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:16,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:16,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:48:16,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:48:16,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,612 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 319 [2024-11-07 03:48:16,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:16,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:48:16,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:48:16,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:48:16,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,653 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 03:48:16,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:48:16,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:48:16,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:48:16,703 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:48:16,704 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (1/1) ... [2024-11-07 03:48:16,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:16,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:16,742 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 03:48:16,745 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 03:48:16,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:48:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:48:16,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:48:16,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:48:16,851 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:48:16,852 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:48:17,524 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-07 03:48:17,525 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:48:17,537 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:48:17,539 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:48:17,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:17 BoogieIcfgContainer [2024-11-07 03:48:17,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:48:17,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:48:17,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:48:17,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:48:17,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:16" (1/3) ... [2024-11-07 03:48:17,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6226325a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:17, skipping insertion in model container [2024-11-07 03:48:17,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:16" (2/3) ... [2024-11-07 03:48:17,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6226325a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:17, skipping insertion in model container [2024-11-07 03:48:17,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:17" (3/3) ... [2024-11-07 03:48:17,549 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-07 03:48:17,564 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:48:17,564 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:48:17,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:48:17,621 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;@5f56fa81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:48:17,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:48:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 0 states 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 03:48:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 03:48:17,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:17,633 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:17,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:17,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash -829897697, now seen corresponding path program 1 times [2024-11-07 03:48:17,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:17,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402178063] [2024-11-07 03:48:17,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:17,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:18,103 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 03:48:18,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402178063] [2024-11-07 03:48:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402178063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:18,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:18,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:18,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408919308] [2024-11-07 03:48:18,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:18,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:18,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:18,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:18,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:18,136 INFO L87 Difference]: Start difference. First operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 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 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states 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 03:48:18,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:18,209 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2024-11-07 03:48:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:18,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2024-11-07 03:48:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:18,217 INFO L225 Difference]: With dead ends: 169 [2024-11-07 03:48:18,218 INFO L226 Difference]: Without dead ends: 89 [2024-11-07 03:48:18,220 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 03:48:18,223 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 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 03:48:18,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-07 03:48:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-07 03:48:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 88 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 03:48:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-11-07 03:48:18,253 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 13 [2024-11-07 03:48:18,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:18,254 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-11-07 03:48:18,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states 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 03:48:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-11-07 03:48:18,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-07 03:48:18,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:18,257 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:18,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:48:18,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:18,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 44670374, now seen corresponding path program 1 times [2024-11-07 03:48:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:18,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774741654] [2024-11-07 03:48:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:18,430 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 03:48:18,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:18,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774741654] [2024-11-07 03:48:18,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774741654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:18,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:18,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:18,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287577242] [2024-11-07 03:48:18,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:18,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:18,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:18,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:18,434 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 03:48:18,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:18,478 INFO L93 Difference]: Finished difference Result 170 states and 247 transitions. [2024-11-07 03:48:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:18,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2024-11-07 03:48:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:18,481 INFO L225 Difference]: With dead ends: 170 [2024-11-07 03:48:18,481 INFO L226 Difference]: Without dead ends: 91 [2024-11-07 03:48:18,482 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 03:48:18,483 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 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 03:48:18,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-07 03:48:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-07 03:48:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4555555555555555) internal successors, (131), 90 states have internal predecessors, (131), 0 states have call successors, (0), 0 states 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 03:48:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-07 03:48:18,494 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 14 [2024-11-07 03:48:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:18,494 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-07 03:48:18,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 03:48:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-07 03:48:18,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-07 03:48:18,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:18,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:18,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:48:18,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:18,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash 286815704, now seen corresponding path program 1 times [2024-11-07 03:48:18,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:18,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813643973] [2024-11-07 03:48:18,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:18,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:18,811 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 03:48:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813643973] [2024-11-07 03:48:18,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813643973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:18,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:18,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:18,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652207449] [2024-11-07 03:48:18,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:18,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:18,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:18,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:18,815 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 03:48:18,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:18,866 INFO L93 Difference]: Finished difference Result 174 states and 251 transitions. [2024-11-07 03:48:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-11-07 03:48:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:18,868 INFO L225 Difference]: With dead ends: 174 [2024-11-07 03:48:18,868 INFO L226 Difference]: Without dead ends: 93 [2024-11-07 03:48:18,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:18,869 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 8 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:18,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 476 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-07 03:48:18,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-07 03:48:18,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 03:48:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-07 03:48:18,882 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 15 [2024-11-07 03:48:18,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:18,883 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-07 03:48:18,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 03:48:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-07 03:48:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 03:48:18,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:18,886 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:18,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:48:18,887 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:18,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:18,888 INFO L85 PathProgramCache]: Analyzing trace with hash -540684496, now seen corresponding path program 1 times [2024-11-07 03:48:18,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:18,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407420314] [2024-11-07 03:48:18,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:18,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:19,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:19,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407420314] [2024-11-07 03:48:19,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407420314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:19,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919816668] [2024-11-07 03:48:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:19,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:19,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:19,666 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 03:48:19,667 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 03:48:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:19,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-07 03:48:19,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:48:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:20,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:48:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:21,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919816668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:48:21,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:48:21,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 10] total 21 [2024-11-07 03:48:21,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605608029] [2024-11-07 03:48:21,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:48:21,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:21,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:21,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:21,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:21,013 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states 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 03:48:21,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:21,248 INFO L93 Difference]: Finished difference Result 177 states and 254 transitions. [2024-11-07 03:48:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:21,249 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-07 03:48:21,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:21,250 INFO L225 Difference]: With dead ends: 177 [2024-11-07 03:48:21,250 INFO L226 Difference]: Without dead ends: 96 [2024-11-07 03:48:21,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:21,251 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 261 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:21,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 713 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-07 03:48:21,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-07 03:48:21,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.4408602150537635) internal successors, (134), 93 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 03:48:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-07 03:48:21,257 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 54 [2024-11-07 03:48:21,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:21,258 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-07 03:48:21,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states 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 03:48:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-07 03:48:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-07 03:48:21,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:21,259 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:21,280 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 03:48:21,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:21,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:21,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:21,465 INFO L85 PathProgramCache]: Analyzing trace with hash -407762765, now seen corresponding path program 1 times [2024-11-07 03:48:21,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:21,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748598082] [2024-11-07 03:48:21,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:21,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:22,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:22,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748598082] [2024-11-07 03:48:22,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748598082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:22,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:22,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:48:22,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283120382] [2024-11-07 03:48:22,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:22,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:22,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:22,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:22,943 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:23,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:23,235 INFO L93 Difference]: Finished difference Result 326 states and 471 transitions. [2024-11-07 03:48:23,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:48:23,236 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-07 03:48:23,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:23,239 INFO L225 Difference]: With dead ends: 326 [2024-11-07 03:48:23,239 INFO L226 Difference]: Without dead ends: 242 [2024-11-07 03:48:23,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:23,240 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 237 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:23,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1439 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:23,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-07 03:48:23,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 151. [2024-11-07 03:48:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4333333333333333) internal successors, (215), 150 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 03:48:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 215 transitions. [2024-11-07 03:48:23,250 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 215 transitions. Word has length 55 [2024-11-07 03:48:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:23,251 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 215 transitions. [2024-11-07 03:48:23,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 215 transitions. [2024-11-07 03:48:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 03:48:23,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:23,252 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:23,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:48:23,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:23,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:23,253 INFO L85 PathProgramCache]: Analyzing trace with hash 905572452, now seen corresponding path program 1 times [2024-11-07 03:48:23,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:23,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897574984] [2024-11-07 03:48:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:24,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897574984] [2024-11-07 03:48:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897574984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:24,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:24,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:48:24,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933316386] [2024-11-07 03:48:24,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:24,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:48:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:48:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:24,571 INFO L87 Difference]: Start difference. First operand 151 states and 215 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:24,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:24,979 INFO L93 Difference]: Finished difference Result 437 states and 633 transitions. [2024-11-07 03:48:24,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:48:24,980 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-07 03:48:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:24,982 INFO L225 Difference]: With dead ends: 437 [2024-11-07 03:48:24,982 INFO L226 Difference]: Without dead ends: 326 [2024-11-07 03:48:24,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:24,983 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 199 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:24,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1346 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:48:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-07 03:48:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 205. [2024-11-07 03:48:24,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.4411764705882353) internal successors, (294), 204 states have internal predecessors, (294), 0 states have call successors, (0), 0 states 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 03:48:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 294 transitions. [2024-11-07 03:48:24,993 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 294 transitions. Word has length 56 [2024-11-07 03:48:24,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:24,994 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 294 transitions. [2024-11-07 03:48:24,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:24,994 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 294 transitions. [2024-11-07 03:48:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 03:48:24,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:24,996 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:24,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:48:24,996 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:24,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 970691691, now seen corresponding path program 1 times [2024-11-07 03:48:24,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:24,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624224131] [2024-11-07 03:48:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:24,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:26,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:26,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624224131] [2024-11-07 03:48:26,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624224131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:26,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:26,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:48:26,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129220004] [2024-11-07 03:48:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:26,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:48:26,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:26,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:48:26,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:26,166 INFO L87 Difference]: Start difference. First operand 205 states and 294 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:26,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:26,526 INFO L93 Difference]: Finished difference Result 536 states and 778 transitions. [2024-11-07 03:48:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:48:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-07 03:48:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:26,530 INFO L225 Difference]: With dead ends: 536 [2024-11-07 03:48:26,530 INFO L226 Difference]: Without dead ends: 413 [2024-11-07 03:48:26,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:26,533 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 198 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:26,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1264 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-07 03:48:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 259. [2024-11-07 03:48:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.445736434108527) internal successors, (373), 258 states have internal predecessors, (373), 0 states have call successors, (0), 0 states 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 03:48:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 373 transitions. [2024-11-07 03:48:26,554 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 373 transitions. Word has length 56 [2024-11-07 03:48:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:26,554 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 373 transitions. [2024-11-07 03:48:26,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 373 transitions. [2024-11-07 03:48:26,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 03:48:26,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:26,556 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:26,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:48:26,557 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:26,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:26,557 INFO L85 PathProgramCache]: Analyzing trace with hash -874229070, now seen corresponding path program 1 times [2024-11-07 03:48:26,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:26,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997288247] [2024-11-07 03:48:26,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:26,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:27,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:27,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997288247] [2024-11-07 03:48:27,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997288247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:27,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:27,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 03:48:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277800525] [2024-11-07 03:48:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:27,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 03:48:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 03:48:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:48:27,200 INFO L87 Difference]: Start difference. First operand 259 states and 373 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:27,499 INFO L93 Difference]: Finished difference Result 562 states and 819 transitions. [2024-11-07 03:48:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:48:27,500 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-07 03:48:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:27,502 INFO L225 Difference]: With dead ends: 562 [2024-11-07 03:48:27,502 INFO L226 Difference]: Without dead ends: 478 [2024-11-07 03:48:27,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:48:27,503 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 219 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:27,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1617 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-07 03:48:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 303. [2024-11-07 03:48:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4536423841059603) internal successors, (439), 302 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 439 transitions. [2024-11-07 03:48:27,515 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 439 transitions. Word has length 56 [2024-11-07 03:48:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:27,515 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 439 transitions. [2024-11-07 03:48:27,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 439 transitions. [2024-11-07 03:48:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 03:48:27,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:27,520 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:27,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 03:48:27,521 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:27,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash -21587143, now seen corresponding path program 1 times [2024-11-07 03:48:27,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:27,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006597303] [2024-11-07 03:48:27,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:27,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:28,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:28,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006597303] [2024-11-07 03:48:28,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006597303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:28,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:28,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:48:28,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300326778] [2024-11-07 03:48:28,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:28,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:28,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:28,587 INFO L87 Difference]: Start difference. First operand 303 states and 439 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:28,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:28,850 INFO L93 Difference]: Finished difference Result 658 states and 960 transitions. [2024-11-07 03:48:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:48:28,851 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-07 03:48:28,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:28,853 INFO L225 Difference]: With dead ends: 658 [2024-11-07 03:48:28,854 INFO L226 Difference]: Without dead ends: 516 [2024-11-07 03:48:28,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:28,856 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 163 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:28,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1792 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:28,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-07 03:48:28,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 399. [2024-11-07 03:48:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.4597989949748744) internal successors, (581), 398 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:28,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 581 transitions. [2024-11-07 03:48:28,877 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 581 transitions. Word has length 56 [2024-11-07 03:48:28,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:28,878 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 581 transitions. [2024-11-07 03:48:28,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:28,879 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 581 transitions. [2024-11-07 03:48:28,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:28,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:28,881 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:28,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 03:48:28,881 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:28,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:28,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2093742992, now seen corresponding path program 1 times [2024-11-07 03:48:28,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:28,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335116819] [2024-11-07 03:48:28,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:28,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:29,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335116819] [2024-11-07 03:48:29,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335116819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:29,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:29,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:29,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826154365] [2024-11-07 03:48:29,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:29,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:29,263 INFO L87 Difference]: Start difference. First operand 399 states and 581 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:29,316 INFO L93 Difference]: Finished difference Result 697 states and 1017 transitions. [2024-11-07 03:48:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:29,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:29,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:29,319 INFO L225 Difference]: With dead ends: 697 [2024-11-07 03:48:29,319 INFO L226 Difference]: Without dead ends: 461 [2024-11-07 03:48:29,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:29,320 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 59 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:29,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 747 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-07 03:48:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 437. [2024-11-07 03:48:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.4495412844036697) internal successors, (632), 436 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 632 transitions. [2024-11-07 03:48:29,332 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 632 transitions. Word has length 57 [2024-11-07 03:48:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:29,332 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 632 transitions. [2024-11-07 03:48:29,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 632 transitions. [2024-11-07 03:48:29,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:29,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:29,334 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:29,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 03:48:29,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:29,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:29,334 INFO L85 PathProgramCache]: Analyzing trace with hash 380642882, now seen corresponding path program 1 times [2024-11-07 03:48:29,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:29,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785539817] [2024-11-07 03:48:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:29,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:30,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785539817] [2024-11-07 03:48:30,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785539817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:30,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:30,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:48:30,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328261716] [2024-11-07 03:48:30,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:30,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:48:30,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:30,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:48:30,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:30,231 INFO L87 Difference]: Start difference. First operand 437 states and 632 transitions. Second operand has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:30,441 INFO L93 Difference]: Finished difference Result 814 states and 1175 transitions. [2024-11-07 03:48:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:48:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:30,445 INFO L225 Difference]: With dead ends: 814 [2024-11-07 03:48:30,445 INFO L226 Difference]: Without dead ends: 644 [2024-11-07 03:48:30,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:30,446 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 164 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:30,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1133 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:30,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-07 03:48:30,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 501. [2024-11-07 03:48:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.442) internal successors, (721), 500 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:30,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 721 transitions. [2024-11-07 03:48:30,463 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 721 transitions. Word has length 57 [2024-11-07 03:48:30,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:30,463 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 721 transitions. [2024-11-07 03:48:30,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:30,463 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 721 transitions. [2024-11-07 03:48:30,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:30,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:30,465 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:30,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 03:48:30,465 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:30,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:30,466 INFO L85 PathProgramCache]: Analyzing trace with hash -102058697, now seen corresponding path program 1 times [2024-11-07 03:48:30,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:30,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853574023] [2024-11-07 03:48:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:30,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:30,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:30,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:30,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853574023] [2024-11-07 03:48:30,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853574023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:30,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:30,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:30,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376281343] [2024-11-07 03:48:30,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:30,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:30,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:30,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:30,849 INFO L87 Difference]: Start difference. First operand 501 states and 721 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:30,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:30,905 INFO L93 Difference]: Finished difference Result 739 states and 1065 transitions. [2024-11-07 03:48:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:30,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:30,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:30,908 INFO L225 Difference]: With dead ends: 739 [2024-11-07 03:48:30,908 INFO L226 Difference]: Without dead ends: 490 [2024-11-07 03:48:30,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:30,909 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 47 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:30,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 619 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:30,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-07 03:48:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 468. [2024-11-07 03:48:30,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.430406852248394) internal successors, (668), 467 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 668 transitions. [2024-11-07 03:48:30,928 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 668 transitions. Word has length 57 [2024-11-07 03:48:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:30,928 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 668 transitions. [2024-11-07 03:48:30,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 668 transitions. [2024-11-07 03:48:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:30,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:30,930 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:30,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 03:48:30,930 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:30,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:30,935 INFO L85 PathProgramCache]: Analyzing trace with hash 41288972, now seen corresponding path program 1 times [2024-11-07 03:48:30,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:30,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766422361] [2024-11-07 03:48:30,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:30,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:32,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:32,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766422361] [2024-11-07 03:48:32,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766422361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:32,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:32,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:48:32,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064074230] [2024-11-07 03:48:32,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:32,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:32,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:32,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:32,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:32,020 INFO L87 Difference]: Start difference. First operand 468 states and 668 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:32,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:32,364 INFO L93 Difference]: Finished difference Result 850 states and 1223 transitions. [2024-11-07 03:48:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:48:32,364 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:32,367 INFO L225 Difference]: With dead ends: 850 [2024-11-07 03:48:32,367 INFO L226 Difference]: Without dead ends: 655 [2024-11-07 03:48:32,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:32,370 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 184 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:32,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1104 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-07 03:48:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 487. [2024-11-07 03:48:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.4300411522633745) internal successors, (695), 486 states have internal predecessors, (695), 0 states have call successors, (0), 0 states 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 03:48:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 695 transitions. [2024-11-07 03:48:32,386 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 695 transitions. Word has length 57 [2024-11-07 03:48:32,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:32,387 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 695 transitions. [2024-11-07 03:48:32,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:32,387 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 695 transitions. [2024-11-07 03:48:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:32,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:32,388 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:32,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 03:48:32,388 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:32,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:32,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2066607835, now seen corresponding path program 1 times [2024-11-07 03:48:32,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:32,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281924702] [2024-11-07 03:48:32,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:32,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:32,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281924702] [2024-11-07 03:48:32,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281924702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:32,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:32,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51602398] [2024-11-07 03:48:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:32,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:32,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:32,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:32,567 INFO L87 Difference]: Start difference. First operand 487 states and 695 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:32,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:32,609 INFO L93 Difference]: Finished difference Result 775 states and 1100 transitions. [2024-11-07 03:48:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:32,612 INFO L225 Difference]: With dead ends: 775 [2024-11-07 03:48:32,612 INFO L226 Difference]: Without dead ends: 488 [2024-11-07 03:48:32,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:32,613 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 39 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:32,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 591 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-07 03:48:32,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 484. [2024-11-07 03:48:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.4078674948240166) internal successors, (680), 483 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 03:48:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 680 transitions. [2024-11-07 03:48:32,627 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 680 transitions. Word has length 57 [2024-11-07 03:48:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:32,627 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 680 transitions. [2024-11-07 03:48:32,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:32,628 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 680 transitions. [2024-11-07 03:48:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:32,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:32,629 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:32,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 03:48:32,629 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:32,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1805977196, now seen corresponding path program 1 times [2024-11-07 03:48:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864026066] [2024-11-07 03:48:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:32,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:32,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864026066] [2024-11-07 03:48:32,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864026066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:32,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:32,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:32,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764659527] [2024-11-07 03:48:32,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:32,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:32,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:32,877 INFO L87 Difference]: Start difference. First operand 484 states and 680 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:32,918 INFO L93 Difference]: Finished difference Result 739 states and 1031 transitions. [2024-11-07 03:48:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:32,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:32,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:32,921 INFO L225 Difference]: With dead ends: 739 [2024-11-07 03:48:32,921 INFO L226 Difference]: Without dead ends: 433 [2024-11-07 03:48:32,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:32,922 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 31 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:32,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 464 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-07 03:48:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 431. [2024-11-07 03:48:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.3813953488372093) internal successors, (594), 430 states have internal predecessors, (594), 0 states have call successors, (0), 0 states 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 03:48:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 594 transitions. [2024-11-07 03:48:32,935 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 594 transitions. Word has length 57 [2024-11-07 03:48:32,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:32,935 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 594 transitions. [2024-11-07 03:48:32,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 594 transitions. [2024-11-07 03:48:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:32,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:32,937 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:32,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 03:48:32,937 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:32,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:32,937 INFO L85 PathProgramCache]: Analyzing trace with hash 173571707, now seen corresponding path program 1 times [2024-11-07 03:48:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:32,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777995757] [2024-11-07 03:48:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:33,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777995757] [2024-11-07 03:48:33,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777995757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:33,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:33,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:48:33,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733720367] [2024-11-07 03:48:33,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:33,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:48:33,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:48:33,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:33,340 INFO L87 Difference]: Start difference. First operand 431 states and 594 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:33,413 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2024-11-07 03:48:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:48:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:33,416 INFO L225 Difference]: With dead ends: 661 [2024-11-07 03:48:33,416 INFO L226 Difference]: Without dead ends: 490 [2024-11-07 03:48:33,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:33,419 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 45 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:33,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 847 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-07 03:48:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 470. [2024-11-07 03:48:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3539445628997868) internal successors, (635), 469 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 635 transitions. [2024-11-07 03:48:33,432 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 635 transitions. Word has length 57 [2024-11-07 03:48:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:33,432 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 635 transitions. [2024-11-07 03:48:33,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 635 transitions. [2024-11-07 03:48:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:33,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:33,434 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:33,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 03:48:33,435 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:33,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:33,435 INFO L85 PathProgramCache]: Analyzing trace with hash 320645826, now seen corresponding path program 1 times [2024-11-07 03:48:33,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:33,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908178449] [2024-11-07 03:48:33,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:33,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:33,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:33,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908178449] [2024-11-07 03:48:33,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908178449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:33,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:33,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 03:48:33,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743085287] [2024-11-07 03:48:33,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:33,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 03:48:33,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:33,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 03:48:33,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:33,885 INFO L87 Difference]: Start difference. First operand 470 states and 635 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:33,961 INFO L93 Difference]: Finished difference Result 658 states and 899 transitions. [2024-11-07 03:48:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 03:48:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:33,964 INFO L225 Difference]: With dead ends: 658 [2024-11-07 03:48:33,964 INFO L226 Difference]: Without dead ends: 486 [2024-11-07 03:48:33,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:33,965 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 42 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:33,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 715 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-07 03:48:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 470. [2024-11-07 03:48:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3454157782515992) internal successors, (631), 469 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 631 transitions. [2024-11-07 03:48:33,978 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 631 transitions. Word has length 57 [2024-11-07 03:48:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:33,978 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 631 transitions. [2024-11-07 03:48:33,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 631 transitions. [2024-11-07 03:48:33,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:33,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:33,979 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:33,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 03:48:33,980 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:33,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:33,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2059985381, now seen corresponding path program 1 times [2024-11-07 03:48:33,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:33,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955865682] [2024-11-07 03:48:33,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:33,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:34,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:34,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955865682] [2024-11-07 03:48:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955865682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-07 03:48:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306709282] [2024-11-07 03:48:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:34,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 03:48:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 03:48:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-07 03:48:34,802 INFO L87 Difference]: Start difference. First operand 470 states and 631 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:35,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:35,124 INFO L93 Difference]: Finished difference Result 760 states and 1045 transitions. [2024-11-07 03:48:35,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:48:35,124 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:35,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:35,127 INFO L225 Difference]: With dead ends: 760 [2024-11-07 03:48:35,128 INFO L226 Difference]: Without dead ends: 613 [2024-11-07 03:48:35,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-07 03:48:35,129 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 105 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:35,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1893 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:35,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-07 03:48:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 506. [2024-11-07 03:48:35,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.3465346534653466) internal successors, (680), 505 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 680 transitions. [2024-11-07 03:48:35,142 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 680 transitions. Word has length 57 [2024-11-07 03:48:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:35,143 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 680 transitions. [2024-11-07 03:48:35,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 680 transitions. [2024-11-07 03:48:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:35,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:35,144 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:35,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 03:48:35,144 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:35,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash -756314298, now seen corresponding path program 1 times [2024-11-07 03:48:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:35,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852989371] [2024-11-07 03:48:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:35,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:35,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:35,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852989371] [2024-11-07 03:48:35,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852989371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:35,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:35,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 03:48:35,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625456483] [2024-11-07 03:48:35,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:35,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 03:48:35,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:35,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 03:48:35,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:35,836 INFO L87 Difference]: Start difference. First operand 506 states and 680 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:36,312 INFO L93 Difference]: Finished difference Result 790 states and 1090 transitions. [2024-11-07 03:48:36,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:48:36,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:36,316 INFO L225 Difference]: With dead ends: 790 [2024-11-07 03:48:36,316 INFO L226 Difference]: Without dead ends: 652 [2024-11-07 03:48:36,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:48:36,317 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 341 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:36,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1513 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:48:36,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-07 03:48:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 515. [2024-11-07 03:48:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.3482490272373542) internal successors, (693), 514 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 693 transitions. [2024-11-07 03:48:36,328 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 693 transitions. Word has length 57 [2024-11-07 03:48:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:36,329 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 693 transitions. [2024-11-07 03:48:36,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 693 transitions. [2024-11-07 03:48:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:36,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:36,330 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:36,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 03:48:36,330 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:36,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:36,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1966672115, now seen corresponding path program 1 times [2024-11-07 03:48:36,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:36,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218105765] [2024-11-07 03:48:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:36,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:37,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218105765] [2024-11-07 03:48:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218105765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:37,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:37,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:48:37,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716525368] [2024-11-07 03:48:37,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:37,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:48:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:37,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:48:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:37,521 INFO L87 Difference]: Start difference. First operand 515 states and 693 transitions. Second operand has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:38,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:38,019 INFO L93 Difference]: Finished difference Result 751 states and 1031 transitions. [2024-11-07 03:48:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:48:38,020 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:38,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:38,022 INFO L225 Difference]: With dead ends: 751 [2024-11-07 03:48:38,023 INFO L226 Difference]: Without dead ends: 597 [2024-11-07 03:48:38,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:38,025 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 111 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:38,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1527 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:48:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-07 03:48:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 527. [2024-11-07 03:48:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3517110266159695) internal successors, (711), 526 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 711 transitions. [2024-11-07 03:48:38,042 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 711 transitions. Word has length 57 [2024-11-07 03:48:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:38,042 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 711 transitions. [2024-11-07 03:48:38,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 711 transitions. [2024-11-07 03:48:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:38,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:38,044 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:38,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 03:48:38,044 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:38,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash -7885154, now seen corresponding path program 1 times [2024-11-07 03:48:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128103501] [2024-11-07 03:48:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:38,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:38,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:38,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128103501] [2024-11-07 03:48:38,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128103501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:38,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:38,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:38,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669281300] [2024-11-07 03:48:38,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:38,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:38,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:38,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:38,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:38,350 INFO L87 Difference]: Start difference. First operand 527 states and 711 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:38,627 INFO L93 Difference]: Finished difference Result 821 states and 1125 transitions. [2024-11-07 03:48:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:38,630 INFO L225 Difference]: With dead ends: 821 [2024-11-07 03:48:38,631 INFO L226 Difference]: Without dead ends: 667 [2024-11-07 03:48:38,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:38,632 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 180 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:38,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 642 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:38,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-07 03:48:38,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 655. [2024-11-07 03:48:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.353211009174312) internal successors, (885), 654 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 885 transitions. [2024-11-07 03:48:38,646 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 885 transitions. Word has length 57 [2024-11-07 03:48:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:38,646 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 885 transitions. [2024-11-07 03:48:38,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 885 transitions. [2024-11-07 03:48:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 03:48:38,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:38,648 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:38,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 03:48:38,648 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:38,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash 573916881, now seen corresponding path program 1 times [2024-11-07 03:48:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:38,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425230234] [2024-11-07 03:48:38,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:38,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:39,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:39,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425230234] [2024-11-07 03:48:39,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425230234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:39,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:39,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:48:39,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760773062] [2024-11-07 03:48:39,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:39,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:39,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:39,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:39,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:39,063 INFO L87 Difference]: Start difference. First operand 655 states and 885 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:39,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:39,350 INFO L93 Difference]: Finished difference Result 878 states and 1210 transitions. [2024-11-07 03:48:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:39,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 03:48:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:39,356 INFO L225 Difference]: With dead ends: 878 [2024-11-07 03:48:39,357 INFO L226 Difference]: Without dead ends: 670 [2024-11-07 03:48:39,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:39,361 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 349 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:39,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 637 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-07 03:48:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 659. [2024-11-07 03:48:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3541033434650456) internal successors, (891), 658 states have internal predecessors, (891), 0 states have call successors, (0), 0 states 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 03:48:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 891 transitions. [2024-11-07 03:48:39,377 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 891 transitions. Word has length 57 [2024-11-07 03:48:39,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:39,377 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 891 transitions. [2024-11-07 03:48:39,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 891 transitions. [2024-11-07 03:48:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:39,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:39,379 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:39,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 03:48:39,379 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:39,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1394040018, now seen corresponding path program 1 times [2024-11-07 03:48:39,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179659989] [2024-11-07 03:48:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:39,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:40,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:40,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179659989] [2024-11-07 03:48:40,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179659989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:40,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:40,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-07 03:48:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149428116] [2024-11-07 03:48:40,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:40,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 03:48:40,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 03:48:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:48:40,052 INFO L87 Difference]: Start difference. First operand 659 states and 891 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:40,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:40,234 INFO L93 Difference]: Finished difference Result 1145 states and 1573 transitions. [2024-11-07 03:48:40,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 03:48:40,234 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:40,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:40,238 INFO L225 Difference]: With dead ends: 1145 [2024-11-07 03:48:40,238 INFO L226 Difference]: Without dead ends: 891 [2024-11-07 03:48:40,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:48:40,239 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 89 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:40,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1172 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-07 03:48:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 825. [2024-11-07 03:48:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.337378640776699) internal successors, (1102), 824 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states 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 03:48:40,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1102 transitions. [2024-11-07 03:48:40,255 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1102 transitions. Word has length 58 [2024-11-07 03:48:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:40,256 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1102 transitions. [2024-11-07 03:48:40,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:40,256 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1102 transitions. [2024-11-07 03:48:40,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:40,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:40,258 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:40,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 03:48:40,258 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:40,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:40,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1767313941, now seen corresponding path program 1 times [2024-11-07 03:48:40,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:40,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375901297] [2024-11-07 03:48:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:41,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:41,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375901297] [2024-11-07 03:48:41,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375901297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:41,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:41,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-07 03:48:41,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808763585] [2024-11-07 03:48:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:41,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 03:48:41,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 03:48:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-07 03:48:41,133 INFO L87 Difference]: Start difference. First operand 825 states and 1102 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:41,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:41,328 INFO L93 Difference]: Finished difference Result 1134 states and 1544 transitions. [2024-11-07 03:48:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 03:48:41,329 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:41,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:41,332 INFO L225 Difference]: With dead ends: 1134 [2024-11-07 03:48:41,332 INFO L226 Difference]: Without dead ends: 925 [2024-11-07 03:48:41,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-07 03:48:41,333 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 136 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:41,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1133 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-07 03:48:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 825. [2024-11-07 03:48:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.3385922330097086) internal successors, (1103), 824 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states 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 03:48:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1103 transitions. [2024-11-07 03:48:41,348 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1103 transitions. Word has length 58 [2024-11-07 03:48:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:41,348 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1103 transitions. [2024-11-07 03:48:41,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1103 transitions. [2024-11-07 03:48:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:41,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:41,350 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:41,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 03:48:41,350 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:41,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:41,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1008377028, now seen corresponding path program 1 times [2024-11-07 03:48:41,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:41,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778399168] [2024-11-07 03:48:41,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:41,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:42,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:42,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778399168] [2024-11-07 03:48:42,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778399168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:42,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:42,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:48:42,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499054077] [2024-11-07 03:48:42,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:42,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:42,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:42,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:42,168 INFO L87 Difference]: Start difference. First operand 825 states and 1103 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:42,442 INFO L93 Difference]: Finished difference Result 1109 states and 1510 transitions. [2024-11-07 03:48:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:48:42,443 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:42,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:42,446 INFO L225 Difference]: With dead ends: 1109 [2024-11-07 03:48:42,446 INFO L226 Difference]: Without dead ends: 900 [2024-11-07 03:48:42,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:42,447 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 195 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:42,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1493 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-07 03:48:42,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 800. [2024-11-07 03:48:42,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.3354192740926158) internal successors, (1067), 799 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states 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 03:48:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1067 transitions. [2024-11-07 03:48:42,470 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1067 transitions. Word has length 58 [2024-11-07 03:48:42,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:42,470 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1067 transitions. [2024-11-07 03:48:42,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1067 transitions. [2024-11-07 03:48:42,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:42,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:42,473 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:42,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 03:48:42,473 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:42,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:42,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1178240200, now seen corresponding path program 1 times [2024-11-07 03:48:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:42,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969807912] [2024-11-07 03:48:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:42,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:42,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969807912] [2024-11-07 03:48:42,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969807912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:42,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:42,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:48:42,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398922081] [2024-11-07 03:48:42,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:42,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:42,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:42,722 INFO L87 Difference]: Start difference. First operand 800 states and 1067 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:42,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:42,772 INFO L93 Difference]: Finished difference Result 1066 states and 1457 transitions. [2024-11-07 03:48:42,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:42,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:42,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:42,775 INFO L225 Difference]: With dead ends: 1066 [2024-11-07 03:48:42,775 INFO L226 Difference]: Without dead ends: 808 [2024-11-07 03:48:42,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:42,777 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:42,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 847 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-07 03:48:42,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 794. [2024-11-07 03:48:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3316519546027743) internal successors, (1056), 793 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states 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 03:48:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1056 transitions. [2024-11-07 03:48:42,792 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1056 transitions. Word has length 58 [2024-11-07 03:48:42,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:42,792 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1056 transitions. [2024-11-07 03:48:42,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:42,792 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1056 transitions. [2024-11-07 03:48:42,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:42,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:42,795 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:42,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 03:48:42,795 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:42,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1125042801, now seen corresponding path program 1 times [2024-11-07 03:48:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444159226] [2024-11-07 03:48:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:42,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:43,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:43,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444159226] [2024-11-07 03:48:43,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444159226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:43,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:43,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688579033] [2024-11-07 03:48:43,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:43,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:43,060 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 8 interpolants. [2024-11-07 03:48:43,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:43,061 INFO L87 Difference]: Start difference. First operand 794 states and 1056 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:43,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,113 INFO L93 Difference]: Finished difference Result 1054 states and 1431 transitions. [2024-11-07 03:48:43,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:43,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,115 INFO L225 Difference]: With dead ends: 1054 [2024-11-07 03:48:43,115 INFO L226 Difference]: Without dead ends: 794 [2024-11-07 03:48:43,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:43,116 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 27 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 791 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-07 03:48:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2024-11-07 03:48:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3240857503152585) internal successors, (1050), 793 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states 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 03:48:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1050 transitions. [2024-11-07 03:48:43,131 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1050 transitions. Word has length 58 [2024-11-07 03:48:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,132 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1050 transitions. [2024-11-07 03:48:43,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:43,132 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1050 transitions. [2024-11-07 03:48:43,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:43,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,134 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:43,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 03:48:43,134 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,136 INFO L85 PathProgramCache]: Analyzing trace with hash -319654, now seen corresponding path program 1 times [2024-11-07 03:48:43,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594834829] [2024-11-07 03:48:43,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:43,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:43,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594834829] [2024-11-07 03:48:43,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594834829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:43,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:43,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 03:48:43,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663247389] [2024-11-07 03:48:43,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:43,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 03:48:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:43,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 03:48:43,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:43,488 INFO L87 Difference]: Start difference. First operand 794 states and 1050 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:43,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,549 INFO L93 Difference]: Finished difference Result 1065 states and 1442 transitions. [2024-11-07 03:48:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:48:43,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,552 INFO L225 Difference]: With dead ends: 1065 [2024-11-07 03:48:43,552 INFO L226 Difference]: Without dead ends: 842 [2024-11-07 03:48:43,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:43,554 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 34 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 878 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-07 03:48:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 823. [2024-11-07 03:48:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.3223844282238444) internal successors, (1087), 822 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states 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 03:48:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1087 transitions. [2024-11-07 03:48:43,568 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1087 transitions. Word has length 58 [2024-11-07 03:48:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,568 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1087 transitions. [2024-11-07 03:48:43,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1087 transitions. [2024-11-07 03:48:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:43,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,570 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:43,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 03:48:43,570 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash 146754465, now seen corresponding path program 1 times [2024-11-07 03:48:43,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720466207] [2024-11-07 03:48:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:44,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:44,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720466207] [2024-11-07 03:48:44,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720466207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:44,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:44,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:48:44,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949410619] [2024-11-07 03:48:44,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:44,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:48:44,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:44,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:48:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:44,721 INFO L87 Difference]: Start difference. First operand 823 states and 1087 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:45,578 INFO L93 Difference]: Finished difference Result 1478 states and 2000 transitions. [2024-11-07 03:48:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:48:45,579 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:45,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:45,583 INFO L225 Difference]: With dead ends: 1478 [2024-11-07 03:48:45,583 INFO L226 Difference]: Without dead ends: 1268 [2024-11-07 03:48:45,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2024-11-07 03:48:45,585 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 420 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:45,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 2151 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 03:48:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-11-07 03:48:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 959. [2024-11-07 03:48:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 1.3235908141962422) internal successors, (1268), 958 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states 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 03:48:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1268 transitions. [2024-11-07 03:48:45,599 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1268 transitions. Word has length 58 [2024-11-07 03:48:45,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:45,600 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1268 transitions. [2024-11-07 03:48:45,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1268 transitions. [2024-11-07 03:48:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:45,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:45,602 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:45,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 03:48:45,602 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:45,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1443040232, now seen corresponding path program 1 times [2024-11-07 03:48:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:45,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385488874] [2024-11-07 03:48:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:45,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:45,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385488874] [2024-11-07 03:48:45,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385488874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:45,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:45,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 03:48:45,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147886921] [2024-11-07 03:48:45,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:45,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 03:48:45,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:45,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 03:48:45,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:45,969 INFO L87 Difference]: Start difference. First operand 959 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:46,030 INFO L93 Difference]: Finished difference Result 1272 states and 1714 transitions. [2024-11-07 03:48:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 03:48:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:46,033 INFO L225 Difference]: With dead ends: 1272 [2024-11-07 03:48:46,033 INFO L226 Difference]: Without dead ends: 948 [2024-11-07 03:48:46,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:46,035 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 41 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:46,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 734 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-07 03:48:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 910. [2024-11-07 03:48:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.316831683168317) internal successors, (1197), 909 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states 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 03:48:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1197 transitions. [2024-11-07 03:48:46,047 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1197 transitions. Word has length 58 [2024-11-07 03:48:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:46,049 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1197 transitions. [2024-11-07 03:48:46,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1197 transitions. [2024-11-07 03:48:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:46,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:46,051 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:46,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 03:48:46,052 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:46,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1200337350, now seen corresponding path program 1 times [2024-11-07 03:48:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:46,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150367507] [2024-11-07 03:48:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:46,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:46,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:46,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150367507] [2024-11-07 03:48:46,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150367507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:46,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:46,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:48:46,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252974714] [2024-11-07 03:48:46,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:46,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:48:46,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:46,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:48:46,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:46,792 INFO L87 Difference]: Start difference. First operand 910 states and 1197 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:47,013 INFO L93 Difference]: Finished difference Result 1280 states and 1728 transitions. [2024-11-07 03:48:47,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:48:47,013 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:47,016 INFO L225 Difference]: With dead ends: 1280 [2024-11-07 03:48:47,016 INFO L226 Difference]: Without dead ends: 1019 [2024-11-07 03:48:47,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:48:47,017 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:47,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1740 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-07 03:48:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 916. [2024-11-07 03:48:47,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 915 states have (on average 1.3158469945355191) internal successors, (1204), 915 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 03:48:47,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1204 transitions. [2024-11-07 03:48:47,031 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1204 transitions. Word has length 58 [2024-11-07 03:48:47,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:47,031 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1204 transitions. [2024-11-07 03:48:47,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:47,032 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1204 transitions. [2024-11-07 03:48:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:47,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:47,033 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:47,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 03:48:47,034 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:47,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:47,034 INFO L85 PathProgramCache]: Analyzing trace with hash -418062271, now seen corresponding path program 1 times [2024-11-07 03:48:47,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:47,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775271379] [2024-11-07 03:48:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:47,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775271379] [2024-11-07 03:48:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775271379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:47,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:47,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 03:48:47,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258609534] [2024-11-07 03:48:47,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:47,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 03:48:47,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 03:48:47,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:47,416 INFO L87 Difference]: Start difference. First operand 916 states and 1204 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:47,479 INFO L93 Difference]: Finished difference Result 1278 states and 1718 transitions. [2024-11-07 03:48:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:48:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:47,482 INFO L225 Difference]: With dead ends: 1278 [2024-11-07 03:48:47,482 INFO L226 Difference]: Without dead ends: 1003 [2024-11-07 03:48:47,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:47,483 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 46 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:47,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 832 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-07 03:48:47,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 939. [2024-11-07 03:48:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 938 states have (on average 1.3102345415778252) internal successors, (1229), 938 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states 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 03:48:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1229 transitions. [2024-11-07 03:48:47,499 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1229 transitions. Word has length 58 [2024-11-07 03:48:47,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:47,499 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1229 transitions. [2024-11-07 03:48:47,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:47,499 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1229 transitions. [2024-11-07 03:48:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:47,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:47,501 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:47,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 03:48:47,501 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:47,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:47,502 INFO L85 PathProgramCache]: Analyzing trace with hash -270988152, now seen corresponding path program 1 times [2024-11-07 03:48:47,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:47,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865982125] [2024-11-07 03:48:47,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:47,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:47,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865982125] [2024-11-07 03:48:47,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865982125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:47,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196723249] [2024-11-07 03:48:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:47,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:47,777 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 03:48:47,779 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 03:48:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:48,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 148 conjuncts are in the unsatisfiable core [2024-11-07 03:48:48,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:48:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:48,546 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:48:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196723249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:48:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2024-11-07 03:48:48,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222576847] [2024-11-07 03:48:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:48,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 03:48:48,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:48,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 03:48:48,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:48:48,548 INFO L87 Difference]: Start difference. First operand 939 states and 1229 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:48,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:48,795 INFO L93 Difference]: Finished difference Result 2061 states and 2705 transitions. [2024-11-07 03:48:48,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 03:48:48,795 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:48,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:48,799 INFO L225 Difference]: With dead ends: 2061 [2024-11-07 03:48:48,799 INFO L226 Difference]: Without dead ends: 1788 [2024-11-07 03:48:48,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:48:48,801 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 178 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:48,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 607 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:48,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-11-07 03:48:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1209. [2024-11-07 03:48:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1208 states have (on average 1.3187086092715232) internal successors, (1593), 1208 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states 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 03:48:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1593 transitions. [2024-11-07 03:48:48,812 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1593 transitions. Word has length 58 [2024-11-07 03:48:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:48,812 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1593 transitions. [2024-11-07 03:48:48,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1593 transitions. [2024-11-07 03:48:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:48,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:48,815 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:48,834 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 03:48:49,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:49,015 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:49,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash 70047194, now seen corresponding path program 1 times [2024-11-07 03:48:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:49,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286919360] [2024-11-07 03:48:49,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:49,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:49,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:49,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286919360] [2024-11-07 03:48:49,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286919360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:49,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831528926] [2024-11-07 03:48:49,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:49,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:49,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:49,287 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 03:48:49,288 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 03:48:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:49,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-07 03:48:49,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:48:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:49,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:48:49,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831528926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:49,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:48:49,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2024-11-07 03:48:49,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072381172] [2024-11-07 03:48:49,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:49,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:49,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:49,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:49,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:48:49,967 INFO L87 Difference]: Start difference. First operand 1209 states and 1593 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:50,246 INFO L93 Difference]: Finished difference Result 1867 states and 2522 transitions. [2024-11-07 03:48:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:50,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:50,250 INFO L225 Difference]: With dead ends: 1867 [2024-11-07 03:48:50,250 INFO L226 Difference]: Without dead ends: 1526 [2024-11-07 03:48:50,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-07 03:48:50,251 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 163 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:50,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 808 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2024-11-07 03:48:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1504. [2024-11-07 03:48:50,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 1.3213572854291418) internal successors, (1986), 1503 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1986 transitions. [2024-11-07 03:48:50,267 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1986 transitions. Word has length 58 [2024-11-07 03:48:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:50,267 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1986 transitions. [2024-11-07 03:48:50,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1986 transitions. [2024-11-07 03:48:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:50,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:50,269 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:50,288 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 03:48:50,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:50,470 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:50,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 401761184, now seen corresponding path program 1 times [2024-11-07 03:48:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:50,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209104600] [2024-11-07 03:48:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:50,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209104600] [2024-11-07 03:48:50,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209104600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:50,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:50,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:48:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801988636] [2024-11-07 03:48:50,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:50,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:48:50,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:50,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:48:50,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:50,855 INFO L87 Difference]: Start difference. First operand 1504 states and 1986 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:51,023 INFO L93 Difference]: Finished difference Result 1998 states and 2707 transitions. [2024-11-07 03:48:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:51,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:51,028 INFO L225 Difference]: With dead ends: 1998 [2024-11-07 03:48:51,029 INFO L226 Difference]: Without dead ends: 1529 [2024-11-07 03:48:51,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:51,030 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 279 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:51,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 669 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:51,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-07 03:48:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1518. [2024-11-07 03:48:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 1.3210283454185894) internal successors, (2004), 1517 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states 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 03:48:51,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2004 transitions. [2024-11-07 03:48:51,043 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2004 transitions. Word has length 58 [2024-11-07 03:48:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:51,043 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 2004 transitions. [2024-11-07 03:48:51,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2004 transitions. [2024-11-07 03:48:51,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:51,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:51,045 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:51,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-07 03:48:51,045 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:51,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:51,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1595826479, now seen corresponding path program 1 times [2024-11-07 03:48:51,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:51,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138541090] [2024-11-07 03:48:51,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:51,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:51,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138541090] [2024-11-07 03:48:51,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138541090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:51,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:51,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 03:48:51,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966652233] [2024-11-07 03:48:51,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:51,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 03:48:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:51,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 03:48:51,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:48:51,567 INFO L87 Difference]: Start difference. First operand 1518 states and 2004 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:51,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:51,659 INFO L93 Difference]: Finished difference Result 2346 states and 3116 transitions. [2024-11-07 03:48:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:48:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:51,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:51,664 INFO L225 Difference]: With dead ends: 2346 [2024-11-07 03:48:51,665 INFO L226 Difference]: Without dead ends: 1827 [2024-11-07 03:48:51,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:48:51,666 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 75 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:51,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 803 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-07 03:48:51,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1636. [2024-11-07 03:48:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1635 states have (on average 1.3027522935779816) internal successors, (2130), 1635 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states 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 03:48:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2130 transitions. [2024-11-07 03:48:51,684 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2130 transitions. Word has length 58 [2024-11-07 03:48:51,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:51,684 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2130 transitions. [2024-11-07 03:48:51,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2130 transitions. [2024-11-07 03:48:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:51,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:51,686 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:51,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-07 03:48:51,686 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:51,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:51,686 INFO L85 PathProgramCache]: Analyzing trace with hash 429119112, now seen corresponding path program 1 times [2024-11-07 03:48:51,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:51,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143594856] [2024-11-07 03:48:51,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:51,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:52,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:52,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143594856] [2024-11-07 03:48:52,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143594856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:52,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:52,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 03:48:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707824106] [2024-11-07 03:48:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:52,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 03:48:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 03:48:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:48:52,080 INFO L87 Difference]: Start difference. First operand 1636 states and 2130 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:52,166 INFO L93 Difference]: Finished difference Result 2617 states and 3460 transitions. [2024-11-07 03:48:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 03:48:52,166 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:52,172 INFO L225 Difference]: With dead ends: 2617 [2024-11-07 03:48:52,172 INFO L226 Difference]: Without dead ends: 2131 [2024-11-07 03:48:52,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:48:52,174 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 59 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:52,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1128 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:52,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2024-11-07 03:48:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1890. [2024-11-07 03:48:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.3065113816834304) internal successors, (2468), 1889 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:52,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2468 transitions. [2024-11-07 03:48:52,191 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2468 transitions. Word has length 58 [2024-11-07 03:48:52,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:52,191 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2468 transitions. [2024-11-07 03:48:52,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2468 transitions. [2024-11-07 03:48:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:52,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:52,194 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:52,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-07 03:48:52,194 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:52,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:52,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2128228168, now seen corresponding path program 1 times [2024-11-07 03:48:52,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:52,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174078518] [2024-11-07 03:48:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:52,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:52,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:52,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:52,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174078518] [2024-11-07 03:48:52,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174078518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:52,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:52,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:48:52,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152411366] [2024-11-07 03:48:52,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:52,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:52,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:52,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:52,946 INFO L87 Difference]: Start difference. First operand 1890 states and 2468 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:53,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:53,177 INFO L93 Difference]: Finished difference Result 2491 states and 3327 transitions. [2024-11-07 03:48:53,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:48:53,177 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:53,182 INFO L225 Difference]: With dead ends: 2491 [2024-11-07 03:48:53,182 INFO L226 Difference]: Without dead ends: 2008 [2024-11-07 03:48:53,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:53,184 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 109 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:53,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1681 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:53,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-07 03:48:53,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1928. [2024-11-07 03:48:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1927 states have (on average 1.305137519460301) internal successors, (2515), 1927 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states 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 03:48:53,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2515 transitions. [2024-11-07 03:48:53,207 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2515 transitions. Word has length 58 [2024-11-07 03:48:53,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:53,207 INFO L471 AbstractCegarLoop]: Abstraction has 1928 states and 2515 transitions. [2024-11-07 03:48:53,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:53,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2515 transitions. [2024-11-07 03:48:53,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:53,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:53,210 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:53,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-07 03:48:53,210 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:53,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1310745227, now seen corresponding path program 1 times [2024-11-07 03:48:53,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:53,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789479481] [2024-11-07 03:48:53,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:53,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:53,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:53,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789479481] [2024-11-07 03:48:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789479481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304637081] [2024-11-07 03:48:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:53,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:53,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:53,447 INFO L87 Difference]: Start difference. First operand 1928 states and 2515 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:53,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:53,603 INFO L93 Difference]: Finished difference Result 2397 states and 3185 transitions. [2024-11-07 03:48:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:53,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:53,606 INFO L225 Difference]: With dead ends: 2397 [2024-11-07 03:48:53,606 INFO L226 Difference]: Without dead ends: 1580 [2024-11-07 03:48:53,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 03:48:53,607 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 130 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:53,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 367 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-07 03:48:53,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1580. [2024-11-07 03:48:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 1.3052564914502849) internal successors, (2061), 1579 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states 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 03:48:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2061 transitions. [2024-11-07 03:48:53,622 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2061 transitions. Word has length 58 [2024-11-07 03:48:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:53,622 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 2061 transitions. [2024-11-07 03:48:53,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2061 transitions. [2024-11-07 03:48:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:53,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:53,624 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:53,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-07 03:48:53,624 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:53,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:53,624 INFO L85 PathProgramCache]: Analyzing trace with hash 975412250, now seen corresponding path program 1 times [2024-11-07 03:48:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:53,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750817915] [2024-11-07 03:48:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:54,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:54,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750817915] [2024-11-07 03:48:54,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750817915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:54,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:54,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:48:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452753360] [2024-11-07 03:48:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:54,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:48:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:54,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:48:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:54,031 INFO L87 Difference]: Start difference. First operand 1580 states and 2061 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:54,176 INFO L93 Difference]: Finished difference Result 2318 states and 3098 transitions. [2024-11-07 03:48:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:48:54,177 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:54,180 INFO L225 Difference]: With dead ends: 2318 [2024-11-07 03:48:54,180 INFO L226 Difference]: Without dead ends: 1878 [2024-11-07 03:48:54,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:54,181 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 59 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:54,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1678 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-07 03:48:54,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1720. [2024-11-07 03:48:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.3054101221640488) internal successors, (2244), 1719 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states 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 03:48:54,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2244 transitions. [2024-11-07 03:48:54,199 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2244 transitions. Word has length 58 [2024-11-07 03:48:54,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:54,199 INFO L471 AbstractCegarLoop]: Abstraction has 1720 states and 2244 transitions. [2024-11-07 03:48:54,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:54,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2244 transitions. [2024-11-07 03:48:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:54,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:54,202 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:54,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-07 03:48:54,202 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:54,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:54,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1224736609, now seen corresponding path program 1 times [2024-11-07 03:48:54,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:54,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342161700] [2024-11-07 03:48:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:55,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:55,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342161700] [2024-11-07 03:48:55,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342161700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:55,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:55,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-07 03:48:55,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275717501] [2024-11-07 03:48:55,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:55,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 03:48:55,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 03:48:55,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:48:55,047 INFO L87 Difference]: Start difference. First operand 1720 states and 2244 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:55,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:55,297 INFO L93 Difference]: Finished difference Result 2183 states and 2903 transitions. [2024-11-07 03:48:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 03:48:55,298 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:55,301 INFO L225 Difference]: With dead ends: 2183 [2024-11-07 03:48:55,301 INFO L226 Difference]: Without dead ends: 1770 [2024-11-07 03:48:55,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:55,303 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 139 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:55,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1400 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:55,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-07 03:48:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1724. [2024-11-07 03:48:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.3052814857806152) internal successors, (2249), 1723 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2249 transitions. [2024-11-07 03:48:55,321 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2249 transitions. Word has length 58 [2024-11-07 03:48:55,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:55,321 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2249 transitions. [2024-11-07 03:48:55,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:55,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2249 transitions. [2024-11-07 03:48:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:55,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:55,324 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:55,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-07 03:48:55,324 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:55,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1765607968, now seen corresponding path program 1 times [2024-11-07 03:48:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:55,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952097546] [2024-11-07 03:48:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:55,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:56,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952097546] [2024-11-07 03:48:56,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952097546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:56,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:56,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:48:56,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667190465] [2024-11-07 03:48:56,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:56,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:48:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:48:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:56,137 INFO L87 Difference]: Start difference. First operand 1724 states and 2249 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:56,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:56,350 INFO L93 Difference]: Finished difference Result 2272 states and 3023 transitions. [2024-11-07 03:48:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 03:48:56,350 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:56,353 INFO L225 Difference]: With dead ends: 2272 [2024-11-07 03:48:56,353 INFO L226 Difference]: Without dead ends: 1859 [2024-11-07 03:48:56,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:56,354 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 115 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:56,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1281 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-11-07 03:48:56,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1774. [2024-11-07 03:48:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1773 states have (on average 1.305696559503666) internal successors, (2315), 1773 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states 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 03:48:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2315 transitions. [2024-11-07 03:48:56,367 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2315 transitions. Word has length 58 [2024-11-07 03:48:56,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:56,367 INFO L471 AbstractCegarLoop]: Abstraction has 1774 states and 2315 transitions. [2024-11-07 03:48:56,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:56,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2315 transitions. [2024-11-07 03:48:56,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:56,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:56,369 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:56,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-07 03:48:56,369 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:56,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:56,370 INFO L85 PathProgramCache]: Analyzing trace with hash 458729454, now seen corresponding path program 1 times [2024-11-07 03:48:56,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:56,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134190517] [2024-11-07 03:48:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:56,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:57,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:57,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134190517] [2024-11-07 03:48:57,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134190517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:57,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:57,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:48:57,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107729654] [2024-11-07 03:48:57,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:57,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:48:57,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:48:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:57,058 INFO L87 Difference]: Start difference. First operand 1774 states and 2315 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:57,309 INFO L93 Difference]: Finished difference Result 2278 states and 3029 transitions. [2024-11-07 03:48:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 03:48:57,309 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:57,313 INFO L225 Difference]: With dead ends: 2278 [2024-11-07 03:48:57,313 INFO L226 Difference]: Without dead ends: 1865 [2024-11-07 03:48:57,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:57,315 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 92 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:57,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1427 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-07 03:48:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1778. [2024-11-07 03:48:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1777 states have (on average 1.3050084411930218) internal successors, (2319), 1777 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2319 transitions. [2024-11-07 03:48:57,342 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2319 transitions. Word has length 58 [2024-11-07 03:48:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:57,342 INFO L471 AbstractCegarLoop]: Abstraction has 1778 states and 2319 transitions. [2024-11-07 03:48:57,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2319 transitions. [2024-11-07 03:48:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 03:48:57,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:57,345 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:57,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-07 03:48:57,345 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:57,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1386191307, now seen corresponding path program 1 times [2024-11-07 03:48:57,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:57,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765187387] [2024-11-07 03:48:57,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:57,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:57,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:57,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765187387] [2024-11-07 03:48:57,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765187387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:57,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:57,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:48:57,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308792013] [2024-11-07 03:48:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:57,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:48:57,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:57,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:48:57,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:48:57,999 INFO L87 Difference]: Start difference. First operand 1778 states and 2319 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:58,270 INFO L93 Difference]: Finished difference Result 2224 states and 2962 transitions. [2024-11-07 03:48:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 03:48:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 03:48:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:58,273 INFO L225 Difference]: With dead ends: 2224 [2024-11-07 03:48:58,273 INFO L226 Difference]: Without dead ends: 1811 [2024-11-07 03:48:58,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:48:58,274 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 79 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:58,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1507 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:48:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-07 03:48:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1764. [2024-11-07 03:48:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1763 states have (on average 1.3074305161656268) internal successors, (2305), 1763 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states 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 03:48:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2305 transitions. [2024-11-07 03:48:58,293 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2305 transitions. Word has length 58 [2024-11-07 03:48:58,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:58,294 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2305 transitions. [2024-11-07 03:48:58,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 03:48:58,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2305 transitions. [2024-11-07 03:48:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:48:58,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:58,296 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:58,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-07 03:48:58,296 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:58,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 609168265, now seen corresponding path program 1 times [2024-11-07 03:48:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50176907] [2024-11-07 03:48:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:58,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50176907] [2024-11-07 03:48:58,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50176907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:58,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:58,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:58,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993686770] [2024-11-07 03:48:58,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:58,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:58,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:58,590 INFO L87 Difference]: Start difference. First operand 1764 states and 2305 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:48:58,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:58,627 INFO L93 Difference]: Finished difference Result 2199 states and 2935 transitions. [2024-11-07 03:48:58,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:58,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:48:58,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:58,630 INFO L225 Difference]: With dead ends: 2199 [2024-11-07 03:48:58,630 INFO L226 Difference]: Without dead ends: 1663 [2024-11-07 03:48:58,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:58,631 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 26 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:58,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 814 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-07 03:48:58,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1579. [2024-11-07 03:48:58,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 1.3035487959442331) internal successors, (2057), 1578 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states 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 03:48:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2057 transitions. [2024-11-07 03:48:58,641 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2057 transitions. Word has length 59 [2024-11-07 03:48:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:58,642 INFO L471 AbstractCegarLoop]: Abstraction has 1579 states and 2057 transitions. [2024-11-07 03:48:58,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:48:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2057 transitions. [2024-11-07 03:48:58,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:48:58,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:58,643 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:58,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-07 03:48:58,643 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:58,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1667878235, now seen corresponding path program 1 times [2024-11-07 03:48:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:58,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141946421] [2024-11-07 03:48:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:58,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:58,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:58,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:58,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141946421] [2024-11-07 03:48:58,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141946421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:58,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:58,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 03:48:58,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376380950] [2024-11-07 03:48:58,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:58,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 03:48:58,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:58,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 03:48:58,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:48:58,971 INFO L87 Difference]: Start difference. First operand 1579 states and 2057 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:59,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:59,121 INFO L93 Difference]: Finished difference Result 2573 states and 3400 transitions. [2024-11-07 03:48:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:48:59,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:48:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:59,125 INFO L225 Difference]: With dead ends: 2573 [2024-11-07 03:48:59,125 INFO L226 Difference]: Without dead ends: 2063 [2024-11-07 03:48:59,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:59,126 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:59,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 472 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-11-07 03:48:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1931. [2024-11-07 03:48:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1930 states have (on average 1.2927461139896372) internal successors, (2495), 1930 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2495 transitions. [2024-11-07 03:48:59,146 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2495 transitions. Word has length 59 [2024-11-07 03:48:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:59,146 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2495 transitions. [2024-11-07 03:48:59,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2495 transitions. [2024-11-07 03:48:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:48:59,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:59,149 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-07 03:48:59,149 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:59,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:59,149 INFO L85 PathProgramCache]: Analyzing trace with hash 347375337, now seen corresponding path program 1 times [2024-11-07 03:48:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276673800] [2024-11-07 03:48:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:59,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276673800] [2024-11-07 03:48:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276673800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770899719] [2024-11-07 03:48:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:59,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:59,409 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 03:48:59,411 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 03:48:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:59,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-07 03:48:59,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:48:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:59,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:48:59,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770899719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:59,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:48:59,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2024-11-07 03:48:59,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614736494] [2024-11-07 03:48:59,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:59,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:59,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:59,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:59,805 INFO L87 Difference]: Start difference. First operand 1931 states and 2495 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:59,868 INFO L93 Difference]: Finished difference Result 2456 states and 3259 transitions. [2024-11-07 03:48:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:59,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:48:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:59,871 INFO L225 Difference]: With dead ends: 2456 [2024-11-07 03:48:59,871 INFO L226 Difference]: Without dead ends: 1960 [2024-11-07 03:48:59,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:48:59,872 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 88 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:59,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 518 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2024-11-07 03:48:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1890. [2024-11-07 03:48:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.2964531498147167) internal successors, (2449), 1889 states have internal predecessors, (2449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2449 transitions. [2024-11-07 03:48:59,885 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2449 transitions. Word has length 59 [2024-11-07 03:48:59,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:59,885 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2449 transitions. [2024-11-07 03:48:59,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:59,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2449 transitions. [2024-11-07 03:48:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:48:59,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:59,888 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:59,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 03:49:00,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-07 03:49:00,088 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:00,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash 712040418, now seen corresponding path program 1 times [2024-11-07 03:49:00,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:00,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660427522] [2024-11-07 03:49:00,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:00,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:00,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:00,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660427522] [2024-11-07 03:49:00,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660427522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:00,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:00,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:49:00,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980111430] [2024-11-07 03:49:00,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:00,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:49:00,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:00,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:49:00,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:00,625 INFO L87 Difference]: Start difference. First operand 1890 states and 2449 transitions. Second operand has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:00,808 INFO L93 Difference]: Finished difference Result 2532 states and 3354 transitions. [2024-11-07 03:49:00,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:00,808 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:49:00,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:00,812 INFO L225 Difference]: With dead ends: 2532 [2024-11-07 03:49:00,812 INFO L226 Difference]: Without dead ends: 2027 [2024-11-07 03:49:00,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:00,813 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 144 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:00,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1354 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-07 03:49:00,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1903. [2024-11-07 03:49:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1902 states have (on average 1.2960042060988433) internal successors, (2465), 1902 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states 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 03:49:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2465 transitions. [2024-11-07 03:49:00,831 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2465 transitions. Word has length 59 [2024-11-07 03:49:00,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:00,831 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 2465 transitions. [2024-11-07 03:49:00,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2465 transitions. [2024-11-07 03:49:00,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:49:00,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:00,834 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:00,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-07 03:49:00,835 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:00,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash 567372976, now seen corresponding path program 1 times [2024-11-07 03:49:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971256600] [2024-11-07 03:49:00,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:00,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:01,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:01,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971256600] [2024-11-07 03:49:01,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971256600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:01,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:01,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:49:01,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940699167] [2024-11-07 03:49:01,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:01,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:49:01,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:49:01,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:01,467 INFO L87 Difference]: Start difference. First operand 1903 states and 2465 transitions. Second operand has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:01,639 INFO L93 Difference]: Finished difference Result 2620 states and 3462 transitions. [2024-11-07 03:49:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:49:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:01,642 INFO L225 Difference]: With dead ends: 2620 [2024-11-07 03:49:01,642 INFO L226 Difference]: Without dead ends: 2115 [2024-11-07 03:49:01,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:01,643 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 79 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:01,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1853 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:01,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-11-07 03:49:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1965. [2024-11-07 03:49:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1964 states have (on average 1.2942973523421588) internal successors, (2542), 1964 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2542 transitions. [2024-11-07 03:49:01,657 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2542 transitions. Word has length 59 [2024-11-07 03:49:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:01,657 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 2542 transitions. [2024-11-07 03:49:01,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2542 transitions. [2024-11-07 03:49:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:49:01,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:01,660 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:01,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-07 03:49:01,660 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:01,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash 809457450, now seen corresponding path program 1 times [2024-11-07 03:49:01,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:01,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711620437] [2024-11-07 03:49:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:01,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:02,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:02,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711620437] [2024-11-07 03:49:02,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711620437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:02,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:02,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:49:02,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031372113] [2024-11-07 03:49:02,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:02,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:49:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:49:02,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:02,395 INFO L87 Difference]: Start difference. First operand 1965 states and 2542 transitions. Second operand has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:02,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:02,657 INFO L93 Difference]: Finished difference Result 2595 states and 3428 transitions. [2024-11-07 03:49:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 03:49:02,657 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:49:02,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:02,660 INFO L225 Difference]: With dead ends: 2595 [2024-11-07 03:49:02,660 INFO L226 Difference]: Without dead ends: 2090 [2024-11-07 03:49:02,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:02,661 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 115 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:02,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1435 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:02,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-07 03:49:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1969. [2024-11-07 03:49:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.2942073170731707) internal successors, (2547), 1968 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states 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 03:49:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2547 transitions. [2024-11-07 03:49:02,682 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2547 transitions. Word has length 59 [2024-11-07 03:49:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:02,682 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2547 transitions. [2024-11-07 03:49:02,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2547 transitions. [2024-11-07 03:49:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:49:02,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:02,685 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:02,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-07 03:49:02,685 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:02,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:02,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1684797157, now seen corresponding path program 1 times [2024-11-07 03:49:02,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:02,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716708253] [2024-11-07 03:49:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:02,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716708253] [2024-11-07 03:49:03,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716708253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610646697] [2024-11-07 03:49:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:03,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:03,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:03,545 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 03:49:03,547 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 03:49:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:03,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-07 03:49:03,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:04,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:04,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610646697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:04,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:04,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [25] total 42 [2024-11-07 03:49:04,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791517949] [2024-11-07 03:49:04,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:04,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 03:49:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:04,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 03:49:04,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1612, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 03:49:04,483 INFO L87 Difference]: Start difference. First operand 1969 states and 2547 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:04,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:04,665 INFO L93 Difference]: Finished difference Result 2551 states and 3378 transitions. [2024-11-07 03:49:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 03:49:04,666 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:49:04,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:04,668 INFO L225 Difference]: With dead ends: 2551 [2024-11-07 03:49:04,668 INFO L226 Difference]: Without dead ends: 2030 [2024-11-07 03:49:04,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=1612, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 03:49:04,669 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 64 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:04,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1199 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:04,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-07 03:49:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1929. [2024-11-07 03:49:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.2940871369294606) internal successors, (2495), 1928 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states 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 03:49:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2495 transitions. [2024-11-07 03:49:04,687 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2495 transitions. Word has length 59 [2024-11-07 03:49:04,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:04,687 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2495 transitions. [2024-11-07 03:49:04,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:04,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2495 transitions. [2024-11-07 03:49:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 03:49:04,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:04,690 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:04,722 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 03:49:04,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:04,890 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:04,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1271940102, now seen corresponding path program 1 times [2024-11-07 03:49:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:04,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035526847] [2024-11-07 03:49:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:05,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:05,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035526847] [2024-11-07 03:49:05,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035526847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:05,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:05,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-07 03:49:05,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401649268] [2024-11-07 03:49:05,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:05,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 03:49:05,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:05,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 03:49:05,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-07 03:49:05,823 INFO L87 Difference]: Start difference. First operand 1929 states and 2495 transitions. Second operand has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:06,124 INFO L93 Difference]: Finished difference Result 2595 states and 3424 transitions. [2024-11-07 03:49:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:06,125 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-07 03:49:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:06,126 INFO L225 Difference]: With dead ends: 2595 [2024-11-07 03:49:06,126 INFO L226 Difference]: Without dead ends: 2090 [2024-11-07 03:49:06,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-07 03:49:06,127 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 108 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:06,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1627 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:49:06,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-07 03:49:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1951. [2024-11-07 03:49:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1950 states have (on average 1.2933333333333332) internal successors, (2522), 1950 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states 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 03:49:06,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2522 transitions. [2024-11-07 03:49:06,145 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2522 transitions. Word has length 59 [2024-11-07 03:49:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:06,145 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2522 transitions. [2024-11-07 03:49:06,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 03:49:06,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2522 transitions. [2024-11-07 03:49:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:06,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:06,148 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:06,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-07 03:49:06,148 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:06,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:06,149 INFO L85 PathProgramCache]: Analyzing trace with hash 256401501, now seen corresponding path program 1 times [2024-11-07 03:49:06,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:06,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537954546] [2024-11-07 03:49:06,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:06,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:06,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:06,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537954546] [2024-11-07 03:49:06,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537954546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:06,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:06,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:06,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619510079] [2024-11-07 03:49:06,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:06,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:06,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:06,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:06,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:06,707 INFO L87 Difference]: Start difference. First operand 1951 states and 2522 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:06,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:06,778 INFO L93 Difference]: Finished difference Result 2635 states and 3461 transitions. [2024-11-07 03:49:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:49:06,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:06,780 INFO L225 Difference]: With dead ends: 2635 [2024-11-07 03:49:06,780 INFO L226 Difference]: Without dead ends: 2027 [2024-11-07 03:49:06,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:06,782 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:06,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 970 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:06,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-07 03:49:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1787. [2024-11-07 03:49:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1786 states have (on average 1.3051511758118701) internal successors, (2331), 1786 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states 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 03:49:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2331 transitions. [2024-11-07 03:49:06,801 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2331 transitions. Word has length 60 [2024-11-07 03:49:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:06,801 INFO L471 AbstractCegarLoop]: Abstraction has 1787 states and 2331 transitions. [2024-11-07 03:49:06,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2331 transitions. [2024-11-07 03:49:06,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:06,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:06,803 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:06,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-07 03:49:06,803 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:06,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:06,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1603201244, now seen corresponding path program 1 times [2024-11-07 03:49:06,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:06,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676285233] [2024-11-07 03:49:06,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:06,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:06,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:06,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676285233] [2024-11-07 03:49:06,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676285233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:06,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:06,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:49:06,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065469109] [2024-11-07 03:49:06,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:06,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:49:06,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:06,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:49:06,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:06,926 INFO L87 Difference]: Start difference. First operand 1787 states and 2331 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:07,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:07,015 INFO L93 Difference]: Finished difference Result 2489 states and 3281 transitions. [2024-11-07 03:49:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:49:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:07,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:07,017 INFO L225 Difference]: With dead ends: 2489 [2024-11-07 03:49:07,017 INFO L226 Difference]: Without dead ends: 1661 [2024-11-07 03:49:07,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:07,018 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:07,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 367 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2024-11-07 03:49:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1629. [2024-11-07 03:49:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.2813267813267812) internal successors, (2086), 1628 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states 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 03:49:07,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2086 transitions. [2024-11-07 03:49:07,034 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2086 transitions. Word has length 60 [2024-11-07 03:49:07,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:07,035 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2086 transitions. [2024-11-07 03:49:07,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:07,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2086 transitions. [2024-11-07 03:49:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:07,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:07,037 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:07,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-07 03:49:07,037 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:07,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1801633791, now seen corresponding path program 1 times [2024-11-07 03:49:07,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:07,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679811894] [2024-11-07 03:49:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:07,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679811894] [2024-11-07 03:49:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679811894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:07,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991742184] [2024-11-07 03:49:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:07,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:07,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:07,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:07,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:07,378 INFO L87 Difference]: Start difference. First operand 1629 states and 2086 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:07,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:07,435 INFO L93 Difference]: Finished difference Result 2168 states and 2823 transitions. [2024-11-07 03:49:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:49:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:07,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:07,437 INFO L225 Difference]: With dead ends: 2168 [2024-11-07 03:49:07,437 INFO L226 Difference]: Without dead ends: 1669 [2024-11-07 03:49:07,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:07,438 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 36 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:07,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 714 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:07,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-11-07 03:49:07,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1629. [2024-11-07 03:49:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.2751842751842752) internal successors, (2076), 1628 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states 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 03:49:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2076 transitions. [2024-11-07 03:49:07,449 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2076 transitions. Word has length 60 [2024-11-07 03:49:07,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:07,449 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2076 transitions. [2024-11-07 03:49:07,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2076 transitions. [2024-11-07 03:49:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:07,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:07,451 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:07,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-07 03:49:07,451 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:07,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1872766743, now seen corresponding path program 1 times [2024-11-07 03:49:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:07,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224921137] [2024-11-07 03:49:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:07,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:07,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:07,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224921137] [2024-11-07 03:49:07,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224921137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:07,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:07,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 03:49:07,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705013445] [2024-11-07 03:49:07,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:07,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 03:49:07,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:07,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 03:49:07,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:07,949 INFO L87 Difference]: Start difference. First operand 1629 states and 2076 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:08,065 INFO L93 Difference]: Finished difference Result 2102 states and 2746 transitions. [2024-11-07 03:49:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 03:49:08,066 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:08,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:08,068 INFO L225 Difference]: With dead ends: 2102 [2024-11-07 03:49:08,068 INFO L226 Difference]: Without dead ends: 1654 [2024-11-07 03:49:08,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:08,069 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 47 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:08,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 995 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:08,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-11-07 03:49:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1635. [2024-11-07 03:49:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1634 states have (on average 1.2760097919216646) internal successors, (2085), 1634 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states 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 03:49:08,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2085 transitions. [2024-11-07 03:49:08,084 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2085 transitions. Word has length 60 [2024-11-07 03:49:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:08,084 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 2085 transitions. [2024-11-07 03:49:08,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2085 transitions. [2024-11-07 03:49:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:08,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:08,086 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:08,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-07 03:49:08,087 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:08,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash -914149788, now seen corresponding path program 1 times [2024-11-07 03:49:08,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:08,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495903192] [2024-11-07 03:49:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:08,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:08,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:08,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495903192] [2024-11-07 03:49:08,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495903192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:08,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:08,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 03:49:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357566455] [2024-11-07 03:49:08,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:08,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 03:49:08,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:08,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 03:49:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:08,518 INFO L87 Difference]: Start difference. First operand 1635 states and 2085 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:08,602 INFO L93 Difference]: Finished difference Result 2085 states and 2723 transitions. [2024-11-07 03:49:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 03:49:08,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:08,604 INFO L225 Difference]: With dead ends: 2085 [2024-11-07 03:49:08,604 INFO L226 Difference]: Without dead ends: 1631 [2024-11-07 03:49:08,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:08,605 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 46 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:08,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1238 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:08,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-07 03:49:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1569. [2024-11-07 03:49:08,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 1.2831632653061225) internal successors, (2012), 1568 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states 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 03:49:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2012 transitions. [2024-11-07 03:49:08,620 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2012 transitions. Word has length 60 [2024-11-07 03:49:08,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:08,621 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2012 transitions. [2024-11-07 03:49:08,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2012 transitions. [2024-11-07 03:49:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:08,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:08,623 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:08,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-07 03:49:08,623 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:08,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:08,624 INFO L85 PathProgramCache]: Analyzing trace with hash -145929666, now seen corresponding path program 1 times [2024-11-07 03:49:08,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:08,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970330067] [2024-11-07 03:49:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:08,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:09,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:09,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970330067] [2024-11-07 03:49:09,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970330067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:09,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 03:49:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403944299] [2024-11-07 03:49:09,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 03:49:09,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 03:49:09,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:09,111 INFO L87 Difference]: Start difference. First operand 1569 states and 2012 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:09,206 INFO L93 Difference]: Finished difference Result 2064 states and 2711 transitions. [2024-11-07 03:49:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 03:49:09,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:09,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:09,207 INFO L225 Difference]: With dead ends: 2064 [2024-11-07 03:49:09,207 INFO L226 Difference]: Without dead ends: 1612 [2024-11-07 03:49:09,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:09,208 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 70 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:09,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1005 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-07 03:49:09,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1565. [2024-11-07 03:49:09,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.2858056265984654) internal successors, (2011), 1564 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states 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 03:49:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2011 transitions. [2024-11-07 03:49:09,218 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2011 transitions. Word has length 60 [2024-11-07 03:49:09,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:09,218 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2011 transitions. [2024-11-07 03:49:09,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2011 transitions. [2024-11-07 03:49:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:09,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:09,220 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:09,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-07 03:49:09,220 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:09,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1362121099, now seen corresponding path program 1 times [2024-11-07 03:49:09,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:09,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581989985] [2024-11-07 03:49:09,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:09,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:09,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:09,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581989985] [2024-11-07 03:49:09,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581989985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:09,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:09,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:49:09,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907250380] [2024-11-07 03:49:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:09,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:49:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:49:09,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:09,346 INFO L87 Difference]: Start difference. First operand 1565 states and 2011 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:09,444 INFO L93 Difference]: Finished difference Result 2245 states and 2916 transitions. [2024-11-07 03:49:09,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:49:09,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:09,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:09,446 INFO L225 Difference]: With dead ends: 2245 [2024-11-07 03:49:09,446 INFO L226 Difference]: Without dead ends: 1529 [2024-11-07 03:49:09,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:09,447 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:09,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 368 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-07 03:49:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1482. [2024-11-07 03:49:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.274139095205942) internal successors, (1887), 1481 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1887 transitions. [2024-11-07 03:49:09,457 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1887 transitions. Word has length 60 [2024-11-07 03:49:09,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:09,457 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1887 transitions. [2024-11-07 03:49:09,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1887 transitions. [2024-11-07 03:49:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:09,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:09,459 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:09,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-07 03:49:09,459 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:09,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:09,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1885657347, now seen corresponding path program 1 times [2024-11-07 03:49:09,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:09,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419510497] [2024-11-07 03:49:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:09,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:10,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:10,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419510497] [2024-11-07 03:49:10,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419510497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:10,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:10,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:49:10,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761321602] [2024-11-07 03:49:10,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:10,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:49:10,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:49:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:10,126 INFO L87 Difference]: Start difference. First operand 1482 states and 1887 transitions. Second operand has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:10,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:10,257 INFO L93 Difference]: Finished difference Result 2010 states and 2609 transitions. [2024-11-07 03:49:10,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:10,257 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:10,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:10,259 INFO L225 Difference]: With dead ends: 2010 [2024-11-07 03:49:10,259 INFO L226 Difference]: Without dead ends: 1600 [2024-11-07 03:49:10,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:10,260 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 90 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:10,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1352 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:10,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-07 03:49:10,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1515. [2024-11-07 03:49:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1514 states have (on average 1.2760898282694848) internal successors, (1932), 1514 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 03:49:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1932 transitions. [2024-11-07 03:49:10,269 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1932 transitions. Word has length 60 [2024-11-07 03:49:10,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:10,269 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1932 transitions. [2024-11-07 03:49:10,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1932 transitions. [2024-11-07 03:49:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:10,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:10,270 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:10,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-07 03:49:10,271 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:10,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash 851324396, now seen corresponding path program 1 times [2024-11-07 03:49:10,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:10,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190918133] [2024-11-07 03:49:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:10,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:10,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:10,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190918133] [2024-11-07 03:49:10,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190918133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:10,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:10,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:49:10,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750043002] [2024-11-07 03:49:10,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:10,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:49:10,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:49:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:10,421 INFO L87 Difference]: Start difference. First operand 1515 states and 1932 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:10,534 INFO L93 Difference]: Finished difference Result 2062 states and 2671 transitions. [2024-11-07 03:49:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:49:10,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:10,536 INFO L225 Difference]: With dead ends: 2062 [2024-11-07 03:49:10,536 INFO L226 Difference]: Without dead ends: 1505 [2024-11-07 03:49:10,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:49:10,537 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 122 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:10,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-11-07 03:49:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1482. [2024-11-07 03:49:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.2687373396353816) internal successors, (1879), 1481 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states 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 03:49:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1879 transitions. [2024-11-07 03:49:10,551 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1879 transitions. Word has length 60 [2024-11-07 03:49:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:10,551 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1879 transitions. [2024-11-07 03:49:10,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1879 transitions. [2024-11-07 03:49:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 03:49:10,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:10,552 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:10,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-07 03:49:10,553 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:10,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:10,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1283188061, now seen corresponding path program 1 times [2024-11-07 03:49:10,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:10,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321935062] [2024-11-07 03:49:10,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:10,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:11,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:11,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321935062] [2024-11-07 03:49:11,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321935062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:11,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:11,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:49:11,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323416361] [2024-11-07 03:49:11,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:11,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:49:11,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:11,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:49:11,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:11,099 INFO L87 Difference]: Start difference. First operand 1482 states and 1879 transitions. Second operand has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:11,276 INFO L93 Difference]: Finished difference Result 2008 states and 2601 transitions. [2024-11-07 03:49:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-07 03:49:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:11,278 INFO L225 Difference]: With dead ends: 2008 [2024-11-07 03:49:11,278 INFO L226 Difference]: Without dead ends: 1608 [2024-11-07 03:49:11,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:11,279 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 92 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:11,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1709 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:11,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-11-07 03:49:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1524. [2024-11-07 03:49:11,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.2692055154300723) internal successors, (1933), 1523 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states 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 03:49:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1933 transitions. [2024-11-07 03:49:11,288 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1933 transitions. Word has length 60 [2024-11-07 03:49:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:11,288 INFO L471 AbstractCegarLoop]: Abstraction has 1524 states and 1933 transitions. [2024-11-07 03:49:11,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 03:49:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1933 transitions. [2024-11-07 03:49:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:11,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:11,290 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:11,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-07 03:49:11,290 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:11,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:11,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1562026537, now seen corresponding path program 1 times [2024-11-07 03:49:11,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:11,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313908024] [2024-11-07 03:49:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:11,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313908024] [2024-11-07 03:49:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313908024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:11,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:11,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 03:49:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72439971] [2024-11-07 03:49:11,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:11,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 03:49:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 03:49:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:49:11,653 INFO L87 Difference]: Start difference. First operand 1524 states and 1933 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:11,714 INFO L93 Difference]: Finished difference Result 1997 states and 2594 transitions. [2024-11-07 03:49:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 03:49:11,715 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:11,716 INFO L225 Difference]: With dead ends: 1997 [2024-11-07 03:49:11,716 INFO L226 Difference]: Without dead ends: 1519 [2024-11-07 03:49:11,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:49:11,717 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 28 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:11,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1205 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-11-07 03:49:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1415. [2024-11-07 03:49:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 1.2666195190947667) internal successors, (1791), 1414 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states 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 03:49:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1791 transitions. [2024-11-07 03:49:11,725 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1791 transitions. Word has length 61 [2024-11-07 03:49:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:11,725 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1791 transitions. [2024-11-07 03:49:11,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1791 transitions. [2024-11-07 03:49:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:11,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:11,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:11,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-07 03:49:11,727 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:11,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:11,727 INFO L85 PathProgramCache]: Analyzing trace with hash 404946561, now seen corresponding path program 1 times [2024-11-07 03:49:11,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:11,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164752879] [2024-11-07 03:49:11,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:11,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:12,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:12,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164752879] [2024-11-07 03:49:12,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164752879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:12,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:12,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 03:49:12,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503831246] [2024-11-07 03:49:12,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:12,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 03:49:12,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:12,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 03:49:12,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:49:12,235 INFO L87 Difference]: Start difference. First operand 1415 states and 1791 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:12,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:12,428 INFO L93 Difference]: Finished difference Result 1957 states and 2536 transitions. [2024-11-07 03:49:12,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 03:49:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:12,430 INFO L225 Difference]: With dead ends: 1957 [2024-11-07 03:49:12,430 INFO L226 Difference]: Without dead ends: 1557 [2024-11-07 03:49:12,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:12,430 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 228 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:12,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 765 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-07 03:49:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1489. [2024-11-07 03:49:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1488 states have (on average 1.2701612903225807) internal successors, (1890), 1488 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:12,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1890 transitions. [2024-11-07 03:49:12,439 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1890 transitions. Word has length 61 [2024-11-07 03:49:12,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:12,439 INFO L471 AbstractCegarLoop]: Abstraction has 1489 states and 1890 transitions. [2024-11-07 03:49:12,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1890 transitions. [2024-11-07 03:49:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:12,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:12,441 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:12,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-07 03:49:12,441 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:12,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:12,442 INFO L85 PathProgramCache]: Analyzing trace with hash -724603067, now seen corresponding path program 1 times [2024-11-07 03:49:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:12,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007935990] [2024-11-07 03:49:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:12,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:12,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:12,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007935990] [2024-11-07 03:49:12,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007935990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:12,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:12,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:12,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929950457] [2024-11-07 03:49:12,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:12,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:12,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:12,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:12,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:12,817 INFO L87 Difference]: Start difference. First operand 1489 states and 1890 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:12,875 INFO L93 Difference]: Finished difference Result 2109 states and 2710 transitions. [2024-11-07 03:49:12,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:49:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:12,877 INFO L225 Difference]: With dead ends: 2109 [2024-11-07 03:49:12,877 INFO L226 Difference]: Without dead ends: 1565 [2024-11-07 03:49:12,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:12,877 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 37 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:12,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 664 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-07 03:49:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1505. [2024-11-07 03:49:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.261968085106383) internal successors, (1898), 1504 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1898 transitions. [2024-11-07 03:49:12,886 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1898 transitions. Word has length 61 [2024-11-07 03:49:12,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:12,886 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1898 transitions. [2024-11-07 03:49:12,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1898 transitions. [2024-11-07 03:49:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:12,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:12,888 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:12,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-07 03:49:12,888 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:12,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:12,888 INFO L85 PathProgramCache]: Analyzing trace with hash -326233954, now seen corresponding path program 1 times [2024-11-07 03:49:12,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:12,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757709909] [2024-11-07 03:49:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:12,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:13,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:13,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757709909] [2024-11-07 03:49:13,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757709909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:13,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:13,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 03:49:13,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440475243] [2024-11-07 03:49:13,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:13,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 03:49:13,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:13,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 03:49:13,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:13,253 INFO L87 Difference]: Start difference. First operand 1505 states and 1898 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:13,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:13,356 INFO L93 Difference]: Finished difference Result 1992 states and 2576 transitions. [2024-11-07 03:49:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 03:49:13,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:13,358 INFO L225 Difference]: With dead ends: 1992 [2024-11-07 03:49:13,358 INFO L226 Difference]: Without dead ends: 1514 [2024-11-07 03:49:13,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-07 03:49:13,358 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 51 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:13,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1038 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:13,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-11-07 03:49:13,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1432. [2024-11-07 03:49:13,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 1.2690426275331936) internal successors, (1816), 1431 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 03:49:13,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1816 transitions. [2024-11-07 03:49:13,366 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1816 transitions. Word has length 61 [2024-11-07 03:49:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:13,366 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 1816 transitions. [2024-11-07 03:49:13,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1816 transitions. [2024-11-07 03:49:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:13,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:13,367 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:13,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-07 03:49:13,368 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:13,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:13,368 INFO L85 PathProgramCache]: Analyzing trace with hash -137726636, now seen corresponding path program 1 times [2024-11-07 03:49:13,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:13,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583845757] [2024-11-07 03:49:13,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:13,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:14,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:14,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583845757] [2024-11-07 03:49:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583845757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:14,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:14,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:49:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900495718] [2024-11-07 03:49:14,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:14,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:49:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:14,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:49:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:14,206 INFO L87 Difference]: Start difference. First operand 1432 states and 1816 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:14,530 INFO L93 Difference]: Finished difference Result 1947 states and 2536 transitions. [2024-11-07 03:49:14,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:14,531 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:14,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:14,532 INFO L225 Difference]: With dead ends: 1947 [2024-11-07 03:49:14,532 INFO L226 Difference]: Without dead ends: 1495 [2024-11-07 03:49:14,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:14,533 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 103 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:14,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1473 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:49:14,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-07 03:49:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1444. [2024-11-07 03:49:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.2681912681912682) internal successors, (1830), 1443 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states 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 03:49:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1830 transitions. [2024-11-07 03:49:14,544 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1830 transitions. Word has length 61 [2024-11-07 03:49:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:14,544 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 1830 transitions. [2024-11-07 03:49:14,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1830 transitions. [2024-11-07 03:49:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:14,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:14,545 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:14,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-07 03:49:14,545 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:14,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash -24370241, now seen corresponding path program 1 times [2024-11-07 03:49:14,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:14,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511580742] [2024-11-07 03:49:14,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:14,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:14,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:14,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511580742] [2024-11-07 03:49:14,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511580742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:14,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:14,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 03:49:14,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156504022] [2024-11-07 03:49:14,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:14,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 03:49:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:14,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 03:49:14,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:49:14,889 INFO L87 Difference]: Start difference. First operand 1444 states and 1830 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:14,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:14,954 INFO L93 Difference]: Finished difference Result 1983 states and 2569 transitions. [2024-11-07 03:49:14,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 03:49:14,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:14,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:14,956 INFO L225 Difference]: With dead ends: 1983 [2024-11-07 03:49:14,956 INFO L226 Difference]: Without dead ends: 1530 [2024-11-07 03:49:14,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:49:14,957 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 32 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:14,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1080 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:14,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2024-11-07 03:49:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1455. [2024-11-07 03:49:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1454 states have (on average 1.265474552957359) internal successors, (1840), 1454 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states 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 03:49:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1840 transitions. [2024-11-07 03:49:14,966 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1840 transitions. Word has length 61 [2024-11-07 03:49:14,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:14,966 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1840 transitions. [2024-11-07 03:49:14,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:14,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1840 transitions. [2024-11-07 03:49:14,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:14,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:14,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:14,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-07 03:49:14,967 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:14,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1945359219, now seen corresponding path program 1 times [2024-11-07 03:49:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:14,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692333261] [2024-11-07 03:49:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:15,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:15,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692333261] [2024-11-07 03:49:15,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692333261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:15,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:15,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 03:49:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422165427] [2024-11-07 03:49:15,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:15,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 03:49:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 03:49:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:49:15,223 INFO L87 Difference]: Start difference. First operand 1455 states and 1840 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:15,381 INFO L93 Difference]: Finished difference Result 1941 states and 2516 transitions. [2024-11-07 03:49:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 03:49:15,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:15,383 INFO L225 Difference]: With dead ends: 1941 [2024-11-07 03:49:15,383 INFO L226 Difference]: Without dead ends: 1489 [2024-11-07 03:49:15,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-07 03:49:15,384 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 176 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:15,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 810 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-11-07 03:49:15,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1451. [2024-11-07 03:49:15,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 1.2648275862068965) internal successors, (1834), 1450 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1834 transitions. [2024-11-07 03:49:15,395 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1834 transitions. Word has length 61 [2024-11-07 03:49:15,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:15,395 INFO L471 AbstractCegarLoop]: Abstraction has 1451 states and 1834 transitions. [2024-11-07 03:49:15,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1834 transitions. [2024-11-07 03:49:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:15,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:15,396 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:15,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-07 03:49:15,396 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:15,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:15,396 INFO L85 PathProgramCache]: Analyzing trace with hash -687766796, now seen corresponding path program 1 times [2024-11-07 03:49:15,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:15,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705868311] [2024-11-07 03:49:15,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:15,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:15,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:15,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705868311] [2024-11-07 03:49:15,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705868311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:15,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:15,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-07 03:49:15,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054280046] [2024-11-07 03:49:15,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:15,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 03:49:15,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:15,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 03:49:15,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:15,828 INFO L87 Difference]: Start difference. First operand 1451 states and 1834 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:15,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:15,944 INFO L93 Difference]: Finished difference Result 2005 states and 2600 transitions. [2024-11-07 03:49:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:49:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:15,946 INFO L225 Difference]: With dead ends: 2005 [2024-11-07 03:49:15,946 INFO L226 Difference]: Without dead ends: 1555 [2024-11-07 03:49:15,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:15,947 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 69 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:15,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1272 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:15,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-07 03:49:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1463. [2024-11-07 03:49:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.2633378932968535) internal successors, (1847), 1462 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1847 transitions. [2024-11-07 03:49:15,956 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1847 transitions. Word has length 61 [2024-11-07 03:49:15,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:15,956 INFO L471 AbstractCegarLoop]: Abstraction has 1463 states and 1847 transitions. [2024-11-07 03:49:15,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1847 transitions. [2024-11-07 03:49:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:15,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:15,958 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:15,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-07 03:49:15,958 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:15,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:15,958 INFO L85 PathProgramCache]: Analyzing trace with hash -438442437, now seen corresponding path program 1 times [2024-11-07 03:49:15,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:15,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291075782] [2024-11-07 03:49:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:15,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:16,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:16,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291075782] [2024-11-07 03:49:16,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291075782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:16,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:16,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:49:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560188448] [2024-11-07 03:49:16,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:16,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:49:16,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:16,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:49:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:16,694 INFO L87 Difference]: Start difference. First operand 1463 states and 1847 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:17,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:17,001 INFO L93 Difference]: Finished difference Result 1993 states and 2585 transitions. [2024-11-07 03:49:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:49:17,002 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:17,003 INFO L225 Difference]: With dead ends: 1993 [2024-11-07 03:49:17,003 INFO L226 Difference]: Without dead ends: 1543 [2024-11-07 03:49:17,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:17,005 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 98 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:17,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1594 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:49:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-07 03:49:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1473. [2024-11-07 03:49:17,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1472 states have (on average 1.2642663043478262) internal successors, (1861), 1472 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states 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 03:49:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 1861 transitions. [2024-11-07 03:49:17,014 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 1861 transitions. Word has length 61 [2024-11-07 03:49:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:17,014 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 1861 transitions. [2024-11-07 03:49:17,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 1861 transitions. [2024-11-07 03:49:17,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:17,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:17,015 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:17,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-07 03:49:17,016 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:17,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:17,016 INFO L85 PathProgramCache]: Analyzing trace with hash 210036934, now seen corresponding path program 1 times [2024-11-07 03:49:17,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:17,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575819494] [2024-11-07 03:49:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:17,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:17,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:17,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575819494] [2024-11-07 03:49:17,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575819494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:17,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:17,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:49:17,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967948717] [2024-11-07 03:49:17,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:17,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:49:17,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:49:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:17,794 INFO L87 Difference]: Start difference. First operand 1473 states and 1861 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:18,052 INFO L93 Difference]: Finished difference Result 1999 states and 2588 transitions. [2024-11-07 03:49:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:49:18,053 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:18,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:18,054 INFO L225 Difference]: With dead ends: 1999 [2024-11-07 03:49:18,054 INFO L226 Difference]: Without dead ends: 1549 [2024-11-07 03:49:18,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:18,055 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 66 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:18,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1501 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-11-07 03:49:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1455. [2024-11-07 03:49:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1454 states have (on average 1.266162310866575) internal successors, (1841), 1454 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states 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 03:49:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1841 transitions. [2024-11-07 03:49:18,067 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1841 transitions. Word has length 61 [2024-11-07 03:49:18,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:18,068 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1841 transitions. [2024-11-07 03:49:18,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1841 transitions. [2024-11-07 03:49:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:18,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:18,069 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:18,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-07 03:49:18,069 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:18,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1063499396, now seen corresponding path program 1 times [2024-11-07 03:49:18,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:18,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511681598] [2024-11-07 03:49:18,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:18,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:18,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511681598] [2024-11-07 03:49:18,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511681598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:18,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:18,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-07 03:49:18,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754113409] [2024-11-07 03:49:18,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:18,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 03:49:18,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:18,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 03:49:18,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:18,586 INFO L87 Difference]: Start difference. First operand 1455 states and 1841 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:18,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:18,730 INFO L93 Difference]: Finished difference Result 2005 states and 2593 transitions. [2024-11-07 03:49:18,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 03:49:18,730 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:18,731 INFO L225 Difference]: With dead ends: 2005 [2024-11-07 03:49:18,731 INFO L226 Difference]: Without dead ends: 1555 [2024-11-07 03:49:18,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:18,732 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 72 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:18,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1503 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-07 03:49:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1463. [2024-11-07 03:49:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.2660738714090287) internal successors, (1851), 1462 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states 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 03:49:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1851 transitions. [2024-11-07 03:49:18,741 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1851 transitions. Word has length 61 [2024-11-07 03:49:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:18,741 INFO L471 AbstractCegarLoop]: Abstraction has 1463 states and 1851 transitions. [2024-11-07 03:49:18,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1851 transitions. [2024-11-07 03:49:18,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:18,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:18,742 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:18,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-07 03:49:18,742 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:18,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:18,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1943724665, now seen corresponding path program 1 times [2024-11-07 03:49:18,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:18,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330122838] [2024-11-07 03:49:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:18,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:19,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:19,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330122838] [2024-11-07 03:49:19,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330122838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:19,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:19,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:49:19,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064373176] [2024-11-07 03:49:19,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:19,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:49:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:49:19,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:19,431 INFO L87 Difference]: Start difference. First operand 1463 states and 1851 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:19,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:19,663 INFO L93 Difference]: Finished difference Result 2003 states and 2593 transitions. [2024-11-07 03:49:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 03:49:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:19,665 INFO L225 Difference]: With dead ends: 2003 [2024-11-07 03:49:19,665 INFO L226 Difference]: Without dead ends: 1553 [2024-11-07 03:49:19,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-07 03:49:19,666 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 59 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:19,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1484 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 03:49:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-11-07 03:49:19,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1445. [2024-11-07 03:49:19,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.268005540166205) internal successors, (1831), 1444 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states 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 03:49:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1831 transitions. [2024-11-07 03:49:19,678 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1831 transitions. Word has length 61 [2024-11-07 03:49:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:19,678 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1831 transitions. [2024-11-07 03:49:19,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 03:49:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1831 transitions. [2024-11-07 03:49:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:19,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:19,679 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:19,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-07 03:49:19,680 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:19,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:19,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1068384958, now seen corresponding path program 1 times [2024-11-07 03:49:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:19,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032666374] [2024-11-07 03:49:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:19,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:20,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:20,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032666374] [2024-11-07 03:49:20,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032666374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:20,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:20,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 03:49:20,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100515260] [2024-11-07 03:49:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:20,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 03:49:20,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:20,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 03:49:20,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:20,135 INFO L87 Difference]: Start difference. First operand 1445 states and 1831 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:20,277 INFO L93 Difference]: Finished difference Result 2017 states and 2603 transitions. [2024-11-07 03:49:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 03:49:20,278 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:20,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:20,280 INFO L225 Difference]: With dead ends: 2017 [2024-11-07 03:49:20,280 INFO L226 Difference]: Without dead ends: 1555 [2024-11-07 03:49:20,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:20,281 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 48 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:20,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1880 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:20,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-07 03:49:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1471. [2024-11-07 03:49:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1470 states have (on average 1.2625850340136053) internal successors, (1856), 1470 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1856 transitions. [2024-11-07 03:49:20,294 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1856 transitions. Word has length 61 [2024-11-07 03:49:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:20,294 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 1856 transitions. [2024-11-07 03:49:20,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1856 transitions. [2024-11-07 03:49:20,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 03:49:20,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:20,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:49:20,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-07 03:49:20,296 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:20,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1752358164, now seen corresponding path program 1 times [2024-11-07 03:49:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:20,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535405377] [2024-11-07 03:49:20,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:20,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:20,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:20,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535405377] [2024-11-07 03:49:20,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535405377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:20,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:20,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-07 03:49:20,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477503987] [2024-11-07 03:49:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:20,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 03:49:20,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 03:49:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-07 03:49:20,818 INFO L87 Difference]: Start difference. First operand 1471 states and 1856 transitions. Second operand has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:20,978 INFO L93 Difference]: Finished difference Result 2110 states and 2724 transitions. [2024-11-07 03:49:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 03:49:20,978 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 03:49:20,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:20,980 INFO L225 Difference]: With dead ends: 2110 [2024-11-07 03:49:20,980 INFO L226 Difference]: Without dead ends: 1660 [2024-11-07 03:49:20,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-07 03:49:20,980 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 53 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:20,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1736 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:20,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-07 03:49:20,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1466. [2024-11-07 03:49:20,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 1.2655290102389078) internal successors, (1854), 1465 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1854 transitions. [2024-11-07 03:49:20,988 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1854 transitions. Word has length 61 [2024-11-07 03:49:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:20,988 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1854 transitions. [2024-11-07 03:49:20,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1854 transitions. [2024-11-07 03:49:20,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:20,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:20,990 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:20,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-07 03:49:20,990 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:20,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 73959588, now seen corresponding path program 1 times [2024-11-07 03:49:20,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:20,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077001416] [2024-11-07 03:49:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:20,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:21,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:21,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077001416] [2024-11-07 03:49:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077001416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:21,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112506876] [2024-11-07 03:49:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:21,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:21,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:21,184 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 03:49:21,185 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 03:49:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:21,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-11-07 03:49:21,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:22,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:22,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112506876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:22,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:22,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2024-11-07 03:49:22,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944699698] [2024-11-07 03:49:22,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:22,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 03:49:22,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 03:49:22,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:22,082 INFO L87 Difference]: Start difference. First operand 1466 states and 1854 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:22,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:22,491 INFO L93 Difference]: Finished difference Result 2622 states and 3377 transitions. [2024-11-07 03:49:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 03:49:22,491 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-07 03:49:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:22,493 INFO L225 Difference]: With dead ends: 2622 [2024-11-07 03:49:22,493 INFO L226 Difference]: Without dead ends: 2172 [2024-11-07 03:49:22,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-07 03:49:22,494 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 176 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:22,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1660 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:49:22,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-11-07 03:49:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1480. [2024-11-07 03:49:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1479 states have (on average 1.2691007437457742) internal successors, (1877), 1479 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states 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 03:49:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1877 transitions. [2024-11-07 03:49:22,508 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1877 transitions. Word has length 62 [2024-11-07 03:49:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:22,508 INFO L471 AbstractCegarLoop]: Abstraction has 1480 states and 1877 transitions. [2024-11-07 03:49:22,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1877 transitions. [2024-11-07 03:49:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:22,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:22,510 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:22,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 03:49:22,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-07 03:49:22,710 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:22,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash 323283947, now seen corresponding path program 1 times [2024-11-07 03:49:22,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:22,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043637368] [2024-11-07 03:49:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:22,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:23,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:23,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043637368] [2024-11-07 03:49:23,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043637368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:23,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:23,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 03:49:23,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697825255] [2024-11-07 03:49:23,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:23,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 03:49:23,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 03:49:23,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:49:23,072 INFO L87 Difference]: Start difference. First operand 1480 states and 1877 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:23,130 INFO L93 Difference]: Finished difference Result 1974 states and 2572 transitions. [2024-11-07 03:49:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 03:49:23,131 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-07 03:49:23,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:23,132 INFO L225 Difference]: With dead ends: 1974 [2024-11-07 03:49:23,132 INFO L226 Difference]: Without dead ends: 1380 [2024-11-07 03:49:23,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-07 03:49:23,133 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 24 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:23,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1021 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2024-11-07 03:49:23,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1116. [2024-11-07 03:49:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.2968609865470853) internal successors, (1446), 1115 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1446 transitions. [2024-11-07 03:49:23,143 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1446 transitions. Word has length 62 [2024-11-07 03:49:23,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:23,144 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1446 transitions. [2024-11-07 03:49:23,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1446 transitions. [2024-11-07 03:49:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:23,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:23,145 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:23,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-07 03:49:23,145 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:23,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:23,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1864220907, now seen corresponding path program 1 times [2024-11-07 03:49:23,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265103477] [2024-11-07 03:49:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:23,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:23,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265103477] [2024-11-07 03:49:23,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265103477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:23,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:23,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 03:49:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164351196] [2024-11-07 03:49:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:23,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 03:49:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 03:49:23,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:23,516 INFO L87 Difference]: Start difference. First operand 1116 states and 1446 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:23,623 INFO L93 Difference]: Finished difference Result 1659 states and 2196 transitions. [2024-11-07 03:49:23,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 03:49:23,624 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-07 03:49:23,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:23,625 INFO L225 Difference]: With dead ends: 1659 [2024-11-07 03:49:23,625 INFO L226 Difference]: Without dead ends: 1145 [2024-11-07 03:49:23,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:23,626 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 40 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:23,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1109 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-07 03:49:23,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1028. [2024-11-07 03:49:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1027 states have (on average 1.3037974683544304) internal successors, (1339), 1027 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1339 transitions. [2024-11-07 03:49:23,635 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1339 transitions. Word has length 62 [2024-11-07 03:49:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:23,635 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1339 transitions. [2024-11-07 03:49:23,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1339 transitions. [2024-11-07 03:49:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:23,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:23,636 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:23,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-07 03:49:23,636 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:23,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:23,637 INFO L85 PathProgramCache]: Analyzing trace with hash -517598844, now seen corresponding path program 1 times [2024-11-07 03:49:23,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:23,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561632885] [2024-11-07 03:49:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:23,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:23,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:23,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561632885] [2024-11-07 03:49:23,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561632885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:23,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:23,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-07 03:49:23,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441042501] [2024-11-07 03:49:23,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:23,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 03:49:23,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:23,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 03:49:23,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:49:23,954 INFO L87 Difference]: Start difference. First operand 1028 states and 1339 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:24,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:24,035 INFO L93 Difference]: Finished difference Result 1634 states and 2165 transitions. [2024-11-07 03:49:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 03:49:24,035 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-07 03:49:24,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:24,036 INFO L225 Difference]: With dead ends: 1634 [2024-11-07 03:49:24,036 INFO L226 Difference]: Without dead ends: 1163 [2024-11-07 03:49:24,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-07 03:49:24,037 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 38 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:24,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1345 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-07 03:49:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1054. [2024-11-07 03:49:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1053 states have (on average 1.2972459639126306) internal successors, (1366), 1053 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 03:49:24,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1366 transitions. [2024-11-07 03:49:24,043 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1366 transitions. Word has length 62 [2024-11-07 03:49:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:24,043 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1366 transitions. [2024-11-07 03:49:24,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:24,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1366 transitions. [2024-11-07 03:49:24,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:24,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:24,044 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:24,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-07 03:49:24,044 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:24,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2147151565, now seen corresponding path program 1 times [2024-11-07 03:49:24,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:24,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652282369] [2024-11-07 03:49:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:24,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:24,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:24,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652282369] [2024-11-07 03:49:24,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652282369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:24,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:24,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 03:49:24,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530291257] [2024-11-07 03:49:24,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:24,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 03:49:24,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 03:49:24,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:24,370 INFO L87 Difference]: Start difference. First operand 1054 states and 1366 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:24,460 INFO L93 Difference]: Finished difference Result 1623 states and 2145 transitions. [2024-11-07 03:49:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 03:49:24,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-07 03:49:24,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:24,462 INFO L225 Difference]: With dead ends: 1623 [2024-11-07 03:49:24,462 INFO L226 Difference]: Without dead ends: 1126 [2024-11-07 03:49:24,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:24,463 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 37 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:24,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1103 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:24,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-07 03:49:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1062. [2024-11-07 03:49:24,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1061 states have (on average 1.293119698397738) internal successors, (1372), 1061 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states 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 03:49:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1372 transitions. [2024-11-07 03:49:24,470 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1372 transitions. Word has length 62 [2024-11-07 03:49:24,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:24,470 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1372 transitions. [2024-11-07 03:49:24,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:24,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1372 transitions. [2024-11-07 03:49:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:24,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:24,471 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:24,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-07 03:49:24,471 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:24,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:24,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1768650428, now seen corresponding path program 1 times [2024-11-07 03:49:24,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:24,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825115989] [2024-11-07 03:49:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:24,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:24,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:24,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825115989] [2024-11-07 03:49:24,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825115989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:24,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:24,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 03:49:24,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533950110] [2024-11-07 03:49:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:24,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-07 03:49:24,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:24,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-07 03:49:24,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:24,791 INFO L87 Difference]: Start difference. First operand 1062 states and 1372 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:24,844 INFO L93 Difference]: Finished difference Result 1578 states and 2090 transitions. [2024-11-07 03:49:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 03:49:24,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-07 03:49:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:24,845 INFO L225 Difference]: With dead ends: 1578 [2024-11-07 03:49:24,845 INFO L226 Difference]: Without dead ends: 1075 [2024-11-07 03:49:24,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:24,846 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 34 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:24,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 833 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:49:24,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-11-07 03:49:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 959. [2024-11-07 03:49:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 1.313152400835073) internal successors, (1258), 958 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states 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 03:49:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1258 transitions. [2024-11-07 03:49:24,855 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1258 transitions. Word has length 62 [2024-11-07 03:49:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:24,855 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1258 transitions. [2024-11-07 03:49:24,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 03:49:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1258 transitions. [2024-11-07 03:49:24,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 03:49:24,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:24,856 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:24,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-07 03:49:24,856 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:24,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash -549258155, now seen corresponding path program 1 times [2024-11-07 03:49:24,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:24,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058979581] [2024-11-07 03:49:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat