./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'd09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f'] 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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:36:13,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:36:13,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:36:13,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:36:13,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:36:13,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:36:13,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:36:13,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:36:13,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:36:13,790 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:36:13,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:36:13,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:36:13,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:36:13,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:36:13,791 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:36:13,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:36:13,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:36:13,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:36:13,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:36:13,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:36:13,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:36:13,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:36:13,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:36:13,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:36:13,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:36:13,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:36:13,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:36:13,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:36:13,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:36:13,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:36:13,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:36:13,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:36:13,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:36:13,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:36:13,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:36:13,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:36:13,796 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f [2024-11-07 00:36:14,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:36:14,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:36:14,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:36:14,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:36:14,077 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:36:14,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:36:15,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:36:15,745 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:36:15,745 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:36:15,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2978873d5/baf6287bd2a849adae864fd2568889bc/FLAG345cc5486 [2024-11-07 00:36:15,784 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2978873d5/baf6287bd2a849adae864fd2568889bc [2024-11-07 00:36:15,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:36:15,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:36:15,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:36:15,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:36:15,796 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:36:15,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:15" (1/1) ... [2024-11-07 00:36:15,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7581093e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:15, skipping insertion in model container [2024-11-07 00:36:15,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:15" (1/1) ... [2024-11-07 00:36:15,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:36:16,120 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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-11-07 00:36:16,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:36:16,191 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:36:16,246 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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-11-07 00:36:16,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:36:16,315 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:36:16,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16 WrapperNode [2024-11-07 00:36:16,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:36:16,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:36:16,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:36:16,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:36:16,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,404 INFO L138 Inliner]: procedures = 28, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1033 [2024-11-07 00:36:16,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:36:16,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:36:16,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:36:16,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:36:16,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,458 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 00:36:16,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:36:16,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:36:16,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:36:16,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:36:16,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (1/1) ... [2024-11-07 00:36:16,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:36:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:36:16,554 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 00:36:16,560 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 00:36:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:36:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:36:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:36:16,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:36:16,718 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:36:16,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:36:17,604 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-07 00:36:17,605 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:36:17,628 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:36:17,630 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:36:17,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:17 BoogieIcfgContainer [2024-11-07 00:36:17,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:36:17,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:36:17,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:36:17,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:36:17,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:36:15" (1/3) ... [2024-11-07 00:36:17,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5992f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:17, skipping insertion in model container [2024-11-07 00:36:17,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:16" (2/3) ... [2024-11-07 00:36:17,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5992f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:17, skipping insertion in model container [2024-11-07 00:36:17,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:17" (3/3) ... [2024-11-07 00:36:17,643 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:36:17,660 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:36:17,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:36:17,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:36:17,745 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;@289e7860, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:36:17,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:36:17,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 229 states have (on average 1.7685589519650655) internal successors, (405), 230 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-07 00:36:17,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:17,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:17,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:17,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash 96284054, now seen corresponding path program 1 times [2024-11-07 00:36:17,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:17,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450216832] [2024-11-07 00:36:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:17,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:18,914 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 00:36:18,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:18,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450216832] [2024-11-07 00:36:18,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450216832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:18,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:18,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:18,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172599001] [2024-11-07 00:36:18,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:18,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:18,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:18,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:18,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:18,947 INFO L87 Difference]: Start difference. First operand has 231 states, 229 states have (on average 1.7685589519650655) internal successors, (405), 230 states have internal predecessors, (405), 0 states have call successors, (0), 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 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:19,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:19,968 INFO L93 Difference]: Finished difference Result 1826 states and 2955 transitions. [2024-11-07 00:36:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:36:19,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-07 00:36:19,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:20,001 INFO L225 Difference]: With dead ends: 1826 [2024-11-07 00:36:20,002 INFO L226 Difference]: Without dead ends: 1705 [2024-11-07 00:36:20,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-07 00:36:20,012 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 3815 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 8216 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:20,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 8216 Invalid, 570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:36:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-07 00:36:20,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 348. [2024-11-07 00:36:20,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.446685878962536) internal successors, (502), 347 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 502 transitions. [2024-11-07 00:36:20,116 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 502 transitions. Word has length 124 [2024-11-07 00:36:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:20,117 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 502 transitions. [2024-11-07 00:36:20,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:20,118 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 502 transitions. [2024-11-07 00:36:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:20,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:20,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:20,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:36:20,124 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:20,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:20,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1563387348, now seen corresponding path program 1 times [2024-11-07 00:36:20,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:20,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671259139] [2024-11-07 00:36:20,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:20,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:20,627 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 00:36:20,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671259139] [2024-11-07 00:36:20,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671259139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:20,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:20,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:20,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912380123] [2024-11-07 00:36:20,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:20,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:20,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:20,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:20,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:20,633 INFO L87 Difference]: Start difference. First operand 348 states and 502 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:21,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:21,082 INFO L93 Difference]: Finished difference Result 1960 states and 3067 transitions. [2024-11-07 00:36:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:21,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:21,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:21,092 INFO L225 Difference]: With dead ends: 1960 [2024-11-07 00:36:21,092 INFO L226 Difference]: Without dead ends: 1780 [2024-11-07 00:36:21,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:21,095 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 2723 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:21,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 4050 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:36:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2024-11-07 00:36:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 552. [2024-11-07 00:36:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 1.5027223230490019) internal successors, (828), 551 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 828 transitions. [2024-11-07 00:36:21,152 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 828 transitions. Word has length 126 [2024-11-07 00:36:21,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:21,152 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 828 transitions. [2024-11-07 00:36:21,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 828 transitions. [2024-11-07 00:36:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:21,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:21,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:21,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:36:21,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash 714482392, now seen corresponding path program 1 times [2024-11-07 00:36:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140298980] [2024-11-07 00:36:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:21,604 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 00:36:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140298980] [2024-11-07 00:36:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140298980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:21,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:21,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274116259] [2024-11-07 00:36:21,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:21,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:21,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:21,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:21,607 INFO L87 Difference]: Start difference. First operand 552 states and 828 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:22,013 INFO L93 Difference]: Finished difference Result 2164 states and 3393 transitions. [2024-11-07 00:36:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:22,023 INFO L225 Difference]: With dead ends: 2164 [2024-11-07 00:36:22,023 INFO L226 Difference]: Without dead ends: 1984 [2024-11-07 00:36:22,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:22,026 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 2890 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:22,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 3536 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2024-11-07 00:36:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 840. [2024-11-07 00:36:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.535160905840286) internal successors, (1288), 839 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1288 transitions. [2024-11-07 00:36:22,072 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1288 transitions. Word has length 126 [2024-11-07 00:36:22,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:22,073 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1288 transitions. [2024-11-07 00:36:22,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,074 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1288 transitions. [2024-11-07 00:36:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:22,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:22,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:22,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:36:22,076 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:22,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2024644258, now seen corresponding path program 1 times [2024-11-07 00:36:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:22,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855289071] [2024-11-07 00:36:22,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:22,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:22,441 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 00:36:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855289071] [2024-11-07 00:36:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855289071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:22,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:22,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006798383] [2024-11-07 00:36:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:22,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:22,445 INFO L87 Difference]: Start difference. First operand 840 states and 1288 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:22,839 INFO L93 Difference]: Finished difference Result 2358 states and 3703 transitions. [2024-11-07 00:36:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:22,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:22,850 INFO L225 Difference]: With dead ends: 2358 [2024-11-07 00:36:22,850 INFO L226 Difference]: Without dead ends: 2178 [2024-11-07 00:36:22,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:22,852 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 3488 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 3070 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:22,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 3070 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2024-11-07 00:36:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1034. [2024-11-07 00:36:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.546950629235237) internal successors, (1598), 1033 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1598 transitions. [2024-11-07 00:36:22,901 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1598 transitions. Word has length 126 [2024-11-07 00:36:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:22,901 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1598 transitions. [2024-11-07 00:36:22,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1598 transitions. [2024-11-07 00:36:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:22,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:22,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:22,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:36:22,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:22,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:22,906 INFO L85 PathProgramCache]: Analyzing trace with hash -292095440, now seen corresponding path program 1 times [2024-11-07 00:36:22,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:22,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544445056] [2024-11-07 00:36:22,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:22,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:23,291 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 00:36:23,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:23,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544445056] [2024-11-07 00:36:23,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544445056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:23,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:23,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331903404] [2024-11-07 00:36:23,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:23,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:23,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:23,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:23,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:23,294 INFO L87 Difference]: Start difference. First operand 1034 states and 1598 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:23,703 INFO L93 Difference]: Finished difference Result 2547 states and 4005 transitions. [2024-11-07 00:36:23,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:23,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:23,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:23,714 INFO L225 Difference]: With dead ends: 2547 [2024-11-07 00:36:23,714 INFO L226 Difference]: Without dead ends: 2367 [2024-11-07 00:36:23,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:23,717 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 3813 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3813 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:23,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3813 Valid, 3303 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:23,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-11-07 00:36:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1213. [2024-11-07 00:36:23,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1212 states have (on average 1.5544554455445545) internal successors, (1884), 1212 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1884 transitions. [2024-11-07 00:36:23,766 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1884 transitions. Word has length 126 [2024-11-07 00:36:23,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:23,766 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1884 transitions. [2024-11-07 00:36:23,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1884 transitions. [2024-11-07 00:36:23,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:23,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:23,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:23,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:36:23,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:23,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash 344464438, now seen corresponding path program 1 times [2024-11-07 00:36:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:23,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172475318] [2024-11-07 00:36:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:23,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:24,086 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 00:36:24,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:24,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172475318] [2024-11-07 00:36:24,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172475318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:24,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:24,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:24,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719873238] [2024-11-07 00:36:24,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:24,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:24,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:24,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:24,088 INFO L87 Difference]: Start difference. First operand 1213 states and 1884 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:24,468 INFO L93 Difference]: Finished difference Result 2725 states and 4290 transitions. [2024-11-07 00:36:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:24,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:24,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:24,480 INFO L225 Difference]: With dead ends: 2725 [2024-11-07 00:36:24,480 INFO L226 Difference]: Without dead ends: 2545 [2024-11-07 00:36:24,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:24,482 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 3953 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:24,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 3165 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:24,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-11-07 00:36:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1391. [2024-11-07 00:36:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 1.5604316546762589) internal successors, (2169), 1390 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2169 transitions. [2024-11-07 00:36:24,539 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2169 transitions. Word has length 126 [2024-11-07 00:36:24,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:24,539 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2169 transitions. [2024-11-07 00:36:24,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2169 transitions. [2024-11-07 00:36:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:24,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:24,541 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:24,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:36:24,542 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:24,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1799008799, now seen corresponding path program 1 times [2024-11-07 00:36:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:24,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35089538] [2024-11-07 00:36:24,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:24,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:25,121 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 00:36:25,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:25,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35089538] [2024-11-07 00:36:25,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35089538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:25,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:25,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:25,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031068473] [2024-11-07 00:36:25,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:25,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:25,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:25,123 INFO L87 Difference]: Start difference. First operand 1391 states and 2169 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:25,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:25,662 INFO L93 Difference]: Finished difference Result 2552 states and 4024 transitions. [2024-11-07 00:36:25,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:25,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:25,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:25,669 INFO L225 Difference]: With dead ends: 2552 [2024-11-07 00:36:25,669 INFO L226 Difference]: Without dead ends: 1393 [2024-11-07 00:36:25,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-07 00:36:25,671 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 768 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:25,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1597 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:25,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-07 00:36:25,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1391. [2024-11-07 00:36:25,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 1.5553956834532374) internal successors, (2162), 1390 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2162 transitions. [2024-11-07 00:36:25,705 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2162 transitions. Word has length 126 [2024-11-07 00:36:25,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:25,705 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2162 transitions. [2024-11-07 00:36:25,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:25,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2162 transitions. [2024-11-07 00:36:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:25,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:25,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:25,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:36:25,711 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:25,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:25,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2079312318, now seen corresponding path program 1 times [2024-11-07 00:36:25,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:25,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332530610] [2024-11-07 00:36:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:25,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:25,809 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 00:36:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332530610] [2024-11-07 00:36:25,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332530610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:25,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:25,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786020130] [2024-11-07 00:36:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:25,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:25,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:25,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:25,811 INFO L87 Difference]: Start difference. First operand 1391 states and 2162 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:25,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:25,859 INFO L93 Difference]: Finished difference Result 3625 states and 5715 transitions. [2024-11-07 00:36:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:25,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:25,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:25,869 INFO L225 Difference]: With dead ends: 3625 [2024-11-07 00:36:25,869 INFO L226 Difference]: Without dead ends: 2466 [2024-11-07 00:36:25,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:25,872 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 131 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:25,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 733 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2024-11-07 00:36:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2438. [2024-11-07 00:36:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 2437 states have (on average 1.5601148953631514) internal successors, (3802), 2437 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3802 transitions. [2024-11-07 00:36:25,931 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3802 transitions. Word has length 126 [2024-11-07 00:36:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:25,931 INFO L471 AbstractCegarLoop]: Abstraction has 2438 states and 3802 transitions. [2024-11-07 00:36:25,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3802 transitions. [2024-11-07 00:36:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:25,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:25,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:25,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:36:25,933 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:25,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash 75972018, now seen corresponding path program 1 times [2024-11-07 00:36:25,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:25,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990529014] [2024-11-07 00:36:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:25,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:26,297 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 00:36:26,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:26,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990529014] [2024-11-07 00:36:26,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990529014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:26,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:26,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:26,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721198018] [2024-11-07 00:36:26,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:26,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:26,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:26,299 INFO L87 Difference]: Start difference. First operand 2438 states and 3802 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:26,681 INFO L93 Difference]: Finished difference Result 5239 states and 8225 transitions. [2024-11-07 00:36:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:26,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:26,702 INFO L225 Difference]: With dead ends: 5239 [2024-11-07 00:36:26,703 INFO L226 Difference]: Without dead ends: 4898 [2024-11-07 00:36:26,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:26,707 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 2947 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:26,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 3658 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-07 00:36:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 2783. [2024-11-07 00:36:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2782 states have (on average 1.5625449317038103) internal successors, (4347), 2782 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 4347 transitions. [2024-11-07 00:36:26,808 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 4347 transitions. Word has length 126 [2024-11-07 00:36:26,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:26,809 INFO L471 AbstractCegarLoop]: Abstraction has 2783 states and 4347 transitions. [2024-11-07 00:36:26,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:26,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 4347 transitions. [2024-11-07 00:36:26,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:26,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:26,811 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:26,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:36:26,812 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:26,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:26,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1961504132, now seen corresponding path program 1 times [2024-11-07 00:36:26,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:26,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725384092] [2024-11-07 00:36:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:26,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:27,119 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 00:36:27,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:27,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725384092] [2024-11-07 00:36:27,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725384092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:27,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:27,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380182467] [2024-11-07 00:36:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:27,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:27,121 INFO L87 Difference]: Start difference. First operand 2783 states and 4347 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:27,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:27,525 INFO L93 Difference]: Finished difference Result 5584 states and 8770 transitions. [2024-11-07 00:36:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:27,526 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:27,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:27,547 INFO L225 Difference]: With dead ends: 5584 [2024-11-07 00:36:27,547 INFO L226 Difference]: Without dead ends: 5243 [2024-11-07 00:36:27,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:27,551 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 3051 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 4433 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:27,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 4433 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:27,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2024-11-07 00:36:27,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 3133. [2024-11-07 00:36:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 1.5644955300127714) internal successors, (4900), 3132 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4900 transitions. [2024-11-07 00:36:27,665 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4900 transitions. Word has length 126 [2024-11-07 00:36:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:27,665 INFO L471 AbstractCegarLoop]: Abstraction has 3133 states and 4900 transitions. [2024-11-07 00:36:27,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4900 transitions. [2024-11-07 00:36:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-07 00:36:27,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:27,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:27,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:36:27,667 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:27,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 804381450, now seen corresponding path program 1 times [2024-11-07 00:36:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:27,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174145272] [2024-11-07 00:36:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:27,947 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 00:36:27,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:27,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174145272] [2024-11-07 00:36:27,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174145272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:27,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:27,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:27,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181988604] [2024-11-07 00:36:27,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:27,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:27,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:27,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:27,949 INFO L87 Difference]: Start difference. First operand 3133 states and 4900 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:28,328 INFO L93 Difference]: Finished difference Result 5944 states and 9339 transitions. [2024-11-07 00:36:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:28,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-07 00:36:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:28,343 INFO L225 Difference]: With dead ends: 5944 [2024-11-07 00:36:28,343 INFO L226 Difference]: Without dead ends: 5603 [2024-11-07 00:36:28,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:28,348 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 3391 mSDsluCounter, 4130 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3391 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:28,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3391 Valid, 4616 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5603 states. [2024-11-07 00:36:28,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5603 to 3498. [2024-11-07 00:36:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3497 states have (on average 1.5661995996568487) internal successors, (5477), 3497 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5477 transitions. [2024-11-07 00:36:28,453 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5477 transitions. Word has length 126 [2024-11-07 00:36:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:28,453 INFO L471 AbstractCegarLoop]: Abstraction has 3498 states and 5477 transitions. [2024-11-07 00:36:28,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:28,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5477 transitions. [2024-11-07 00:36:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-07 00:36:28,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:28,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:28,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:36:28,455 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:28,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:28,456 INFO L85 PathProgramCache]: Analyzing trace with hash 63392965, now seen corresponding path program 1 times [2024-11-07 00:36:28,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:28,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803196986] [2024-11-07 00:36:28,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:28,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:28,600 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 00:36:28,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:28,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803196986] [2024-11-07 00:36:28,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803196986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:28,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:28,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:28,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805643469] [2024-11-07 00:36:28,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:28,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:28,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:28,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:28,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:28,602 INFO L87 Difference]: Start difference. First operand 3498 states and 5477 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:28,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:28,923 INFO L93 Difference]: Finished difference Result 10285 states and 16189 transitions. [2024-11-07 00:36:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:28,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-07 00:36:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:28,941 INFO L225 Difference]: With dead ends: 10285 [2024-11-07 00:36:28,941 INFO L226 Difference]: Without dead ends: 6854 [2024-11-07 00:36:28,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:28,948 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1238 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:28,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 274 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:36:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2024-11-07 00:36:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6852. [2024-11-07 00:36:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5676543570281711) internal successors, (10740), 6851 states have internal predecessors, (10740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10740 transitions. [2024-11-07 00:36:29,152 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10740 transitions. Word has length 127 [2024-11-07 00:36:29,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:29,152 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10740 transitions. [2024-11-07 00:36:29,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10740 transitions. [2024-11-07 00:36:29,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-07 00:36:29,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:29,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:29,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:36:29,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:29,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash -715246153, now seen corresponding path program 1 times [2024-11-07 00:36:29,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:29,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370199469] [2024-11-07 00:36:29,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:29,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:29,330 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 00:36:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:29,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370199469] [2024-11-07 00:36:29,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370199469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:29,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:29,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928299037] [2024-11-07 00:36:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:29,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:29,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:29,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:29,333 INFO L87 Difference]: Start difference. First operand 6852 states and 10740 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:29,575 INFO L93 Difference]: Finished difference Result 13621 states and 21393 transitions. [2024-11-07 00:36:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:29,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-07 00:36:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:29,592 INFO L225 Difference]: With dead ends: 13621 [2024-11-07 00:36:29,593 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:29,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:29,604 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 804 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:29,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 205 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:29,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5564151218800175) internal successors, (10663), 6851 states have internal predecessors, (10663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10663 transitions. [2024-11-07 00:36:29,742 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10663 transitions. Word has length 128 [2024-11-07 00:36:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:29,742 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10663 transitions. [2024-11-07 00:36:29,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10663 transitions. [2024-11-07 00:36:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-07 00:36:29,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:29,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:29,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:36:29,745 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:29,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1535233275, now seen corresponding path program 1 times [2024-11-07 00:36:29,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:29,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211246947] [2024-11-07 00:36:29,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:29,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:29,933 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 00:36:29,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:29,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211246947] [2024-11-07 00:36:29,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211246947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:29,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:29,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:29,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609804188] [2024-11-07 00:36:29,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:29,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:29,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:29,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:29,934 INFO L87 Difference]: Start difference. First operand 6852 states and 10663 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 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 00:36:30,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:30,142 INFO L93 Difference]: Finished difference Result 13609 states and 21225 transitions. [2024-11-07 00:36:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:30,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 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) Word has length 129 [2024-11-07 00:36:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:30,158 INFO L225 Difference]: With dead ends: 13609 [2024-11-07 00:36:30,158 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:30,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:30,168 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 765 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:30,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 233 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.545175886731864) internal successors, (10586), 6851 states have internal predecessors, (10586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10586 transitions. [2024-11-07 00:36:30,308 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10586 transitions. Word has length 129 [2024-11-07 00:36:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:30,308 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10586 transitions. [2024-11-07 00:36:30,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 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 00:36:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10586 transitions. [2024-11-07 00:36:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-07 00:36:30,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:30,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:30,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:36:30,312 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:30,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:30,312 INFO L85 PathProgramCache]: Analyzing trace with hash -746894101, now seen corresponding path program 1 times [2024-11-07 00:36:30,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:30,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620148753] [2024-11-07 00:36:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:30,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:30,445 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 00:36:30,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:30,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620148753] [2024-11-07 00:36:30,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620148753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:30,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:30,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524513612] [2024-11-07 00:36:30,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:30,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:30,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:30,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:30,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:30,447 INFO L87 Difference]: Start difference. First operand 6852 states and 10586 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:30,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:30,655 INFO L93 Difference]: Finished difference Result 13613 states and 21076 transitions. [2024-11-07 00:36:30,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:30,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-07 00:36:30,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:30,671 INFO L225 Difference]: With dead ends: 13613 [2024-11-07 00:36:30,672 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:30,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:30,683 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 769 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:30,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 221 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:30,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5339366515837105) internal successors, (10509), 6851 states have internal predecessors, (10509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10509 transitions. [2024-11-07 00:36:30,852 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10509 transitions. Word has length 130 [2024-11-07 00:36:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:30,852 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10509 transitions. [2024-11-07 00:36:30,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10509 transitions. [2024-11-07 00:36:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:36:30,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:30,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:30,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:36:30,855 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:30,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -894772551, now seen corresponding path program 1 times [2024-11-07 00:36:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:30,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164118003] [2024-11-07 00:36:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:30,991 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 00:36:30,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:30,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164118003] [2024-11-07 00:36:30,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164118003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:30,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441068433] [2024-11-07 00:36:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:30,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:30,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:30,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:30,995 INFO L87 Difference]: Start difference. First operand 6852 states and 10509 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 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 00:36:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:31,202 INFO L93 Difference]: Finished difference Result 13625 states and 20936 transitions. [2024-11-07 00:36:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:31,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 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) Word has length 131 [2024-11-07 00:36:31,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:31,218 INFO L225 Difference]: With dead ends: 13625 [2024-11-07 00:36:31,218 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:31,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:31,227 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 797 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:31,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 197 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:31,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.522697416435557) internal successors, (10432), 6851 states have internal predecessors, (10432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10432 transitions. [2024-11-07 00:36:31,339 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10432 transitions. Word has length 131 [2024-11-07 00:36:31,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:31,340 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10432 transitions. [2024-11-07 00:36:31,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 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 00:36:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10432 transitions. [2024-11-07 00:36:31,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-07 00:36:31,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:31,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:31,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:36:31,344 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:31,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash 707180727, now seen corresponding path program 1 times [2024-11-07 00:36:31,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:31,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664692177] [2024-11-07 00:36:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:31,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:31,522 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 00:36:31,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:31,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664692177] [2024-11-07 00:36:31,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664692177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:31,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:31,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:31,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097079793] [2024-11-07 00:36:31,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:31,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:31,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:31,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:31,523 INFO L87 Difference]: Start difference. First operand 6852 states and 10432 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:31,726 INFO L93 Difference]: Finished difference Result 13633 states and 20792 transitions. [2024-11-07 00:36:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:31,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-07 00:36:31,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:31,742 INFO L225 Difference]: With dead ends: 13633 [2024-11-07 00:36:31,742 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:31,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:31,752 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 813 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:31,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 181 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:31,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5114581812874033) internal successors, (10355), 6851 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10355 transitions. [2024-11-07 00:36:31,856 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10355 transitions. Word has length 132 [2024-11-07 00:36:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:31,856 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10355 transitions. [2024-11-07 00:36:31,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10355 transitions. [2024-11-07 00:36:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-07 00:36:31,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:31,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:31,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:36:31,859 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:31,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:31,860 INFO L85 PathProgramCache]: Analyzing trace with hash -72647047, now seen corresponding path program 1 times [2024-11-07 00:36:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:31,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462394813] [2024-11-07 00:36:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:31,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:32,005 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 00:36:32,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:32,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462394813] [2024-11-07 00:36:32,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462394813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:32,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:32,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:32,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320586390] [2024-11-07 00:36:32,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:32,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:32,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:32,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:32,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:32,008 INFO L87 Difference]: Start difference. First operand 6852 states and 10355 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 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 00:36:32,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:32,206 INFO L93 Difference]: Finished difference Result 13629 states and 20634 transitions. [2024-11-07 00:36:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:32,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 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) Word has length 133 [2024-11-07 00:36:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:32,222 INFO L225 Difference]: With dead ends: 13629 [2024-11-07 00:36:32,222 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:32,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:32,233 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 795 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:32,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 189 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:32,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.5002189461392497) internal successors, (10278), 6851 states have internal predecessors, (10278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10278 transitions. [2024-11-07 00:36:32,362 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10278 transitions. Word has length 133 [2024-11-07 00:36:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:32,363 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10278 transitions. [2024-11-07 00:36:32,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 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 00:36:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10278 transitions. [2024-11-07 00:36:32,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 00:36:32,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:32,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:32,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:36:32,367 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:32,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1467277949, now seen corresponding path program 1 times [2024-11-07 00:36:32,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717225516] [2024-11-07 00:36:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:32,548 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 00:36:32,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:32,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717225516] [2024-11-07 00:36:32,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717225516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:32,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:32,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:32,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854192664] [2024-11-07 00:36:32,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:32,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:32,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:32,552 INFO L87 Difference]: Start difference. First operand 6852 states and 10278 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 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 00:36:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:32,765 INFO L93 Difference]: Finished difference Result 13617 states and 20468 transitions. [2024-11-07 00:36:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 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) Word has length 134 [2024-11-07 00:36:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:32,782 INFO L225 Difference]: With dead ends: 13617 [2024-11-07 00:36:32,782 INFO L226 Difference]: Without dead ends: 6852 [2024-11-07 00:36:32,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:32,792 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 753 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:32,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 213 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:32,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6852 states. [2024-11-07 00:36:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6852 to 6852. [2024-11-07 00:36:32,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4889797109910963) internal successors, (10201), 6851 states have internal predecessors, (10201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10201 transitions. [2024-11-07 00:36:32,914 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10201 transitions. Word has length 134 [2024-11-07 00:36:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:32,914 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10201 transitions. [2024-11-07 00:36:32,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 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 00:36:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10201 transitions. [2024-11-07 00:36:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 00:36:32,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:32,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:32,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:36:32,918 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:32,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:32,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1720431211, now seen corresponding path program 1 times [2024-11-07 00:36:32,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:32,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015593276] [2024-11-07 00:36:32,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:32,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:33,621 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 00:36:33,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015593276] [2024-11-07 00:36:33,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015593276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:33,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:33,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:36:33,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910405447] [2024-11-07 00:36:33,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:33,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:36:33,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:33,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:36:33,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:36:33,623 INFO L87 Difference]: Start difference. First operand 6852 states and 10201 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:34,571 INFO L93 Difference]: Finished difference Result 20282 states and 30197 transitions. [2024-11-07 00:36:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:36:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-11-07 00:36:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:34,603 INFO L225 Difference]: With dead ends: 20282 [2024-11-07 00:36:34,603 INFO L226 Difference]: Without dead ends: 13658 [2024-11-07 00:36:34,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:36:34,617 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1276 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:34,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 1092 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:36:34,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13658 states. [2024-11-07 00:36:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13658 to 6852. [2024-11-07 00:36:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4876660341555976) internal successors, (10192), 6851 states have internal predecessors, (10192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:34,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10192 transitions. [2024-11-07 00:36:34,736 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10192 transitions. Word has length 135 [2024-11-07 00:36:34,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:34,737 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10192 transitions. [2024-11-07 00:36:34,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10192 transitions. [2024-11-07 00:36:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-07 00:36:34,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:34,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:34,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:36:34,740 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:34,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1294997924, now seen corresponding path program 1 times [2024-11-07 00:36:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072047793] [2024-11-07 00:36:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:35,357 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 00:36:35,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:35,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072047793] [2024-11-07 00:36:35,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072047793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:35,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:35,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:36:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583974465] [2024-11-07 00:36:35,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:35,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:36:35,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:36:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:36:35,359 INFO L87 Difference]: Start difference. First operand 6852 states and 10192 transitions. Second operand has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:36,304 INFO L93 Difference]: Finished difference Result 20597 states and 30491 transitions. [2024-11-07 00:36:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 00:36:36,304 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-07 00:36:36,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:36,335 INFO L225 Difference]: With dead ends: 20597 [2024-11-07 00:36:36,335 INFO L226 Difference]: Without dead ends: 14153 [2024-11-07 00:36:36,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-07 00:36:36,345 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1384 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:36,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1203 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:36:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14153 states. [2024-11-07 00:36:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14153 to 7122. [2024-11-07 00:36:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 1.4881336890886112) internal successors, (10597), 7121 states have internal predecessors, (10597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10597 transitions. [2024-11-07 00:36:36,492 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10597 transitions. Word has length 136 [2024-11-07 00:36:36,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:36,493 INFO L471 AbstractCegarLoop]: Abstraction has 7122 states and 10597 transitions. [2024-11-07 00:36:36,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 13 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:36,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10597 transitions. [2024-11-07 00:36:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-07 00:36:36,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:36,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:36,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:36:36,496 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:36,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1517119698, now seen corresponding path program 1 times [2024-11-07 00:36:36,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:36,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646662474] [2024-11-07 00:36:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:36,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:37,018 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 00:36:37,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:37,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646662474] [2024-11-07 00:36:37,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646662474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:37,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:37,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:36:37,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293596909] [2024-11-07 00:36:37,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:37,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:36:37,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:37,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:36:37,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:36:37,020 INFO L87 Difference]: Start difference. First operand 7122 states and 10597 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:37,807 INFO L93 Difference]: Finished difference Result 20794 states and 30947 transitions. [2024-11-07 00:36:37,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:36:37,808 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-07 00:36:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:37,838 INFO L225 Difference]: With dead ends: 20794 [2024-11-07 00:36:37,838 INFO L226 Difference]: Without dead ends: 13943 [2024-11-07 00:36:37,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:36:37,849 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1426 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:37,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 895 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:36:37,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13943 states. [2024-11-07 00:36:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13943 to 7122. [2024-11-07 00:36:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 1.486869821654262) internal successors, (10588), 7121 states have internal predecessors, (10588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10588 transitions. [2024-11-07 00:36:37,986 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10588 transitions. Word has length 136 [2024-11-07 00:36:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:37,987 INFO L471 AbstractCegarLoop]: Abstraction has 7122 states and 10588 transitions. [2024-11-07 00:36:37,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10588 transitions. [2024-11-07 00:36:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 00:36:37,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:37,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:37,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:36:37,990 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:37,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash 397308953, now seen corresponding path program 1 times [2024-11-07 00:36:37,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:37,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341577123] [2024-11-07 00:36:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:37,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:38,318 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 00:36:38,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:38,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341577123] [2024-11-07 00:36:38,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341577123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:38,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:38,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:36:38,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359460217] [2024-11-07 00:36:38,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:38,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:36:38,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:38,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:36:38,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:36:38,320 INFO L87 Difference]: Start difference. First operand 7122 states and 10588 transitions. Second operand has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:38,821 INFO L93 Difference]: Finished difference Result 20261 states and 30204 transitions. [2024-11-07 00:36:38,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:36:38,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-07 00:36:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:38,851 INFO L225 Difference]: With dead ends: 20261 [2024-11-07 00:36:38,852 INFO L226 Difference]: Without dead ends: 13566 [2024-11-07 00:36:38,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:36:38,861 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 659 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:38,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 747 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:36:38,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13566 states. [2024-11-07 00:36:39,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13566 to 7122. [2024-11-07 00:36:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 1.4867293919393343) internal successors, (10587), 7121 states have internal predecessors, (10587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 10587 transitions. [2024-11-07 00:36:39,038 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 10587 transitions. Word has length 137 [2024-11-07 00:36:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:39,039 INFO L471 AbstractCegarLoop]: Abstraction has 7122 states and 10587 transitions. [2024-11-07 00:36:39,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 10587 transitions. [2024-11-07 00:36:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-07 00:36:39,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:39,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:39,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:36:39,042 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:39,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 515629421, now seen corresponding path program 1 times [2024-11-07 00:36:39,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:39,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193795547] [2024-11-07 00:36:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:39,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:39,390 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 00:36:39,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:39,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193795547] [2024-11-07 00:36:39,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193795547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:39,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:39,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:36:39,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967436100] [2024-11-07 00:36:39,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:39,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:39,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:39,392 INFO L87 Difference]: Start difference. First operand 7122 states and 10587 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:40,150 INFO L93 Difference]: Finished difference Result 14389 states and 21371 transitions. [2024-11-07 00:36:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:36:40,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-07 00:36:40,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:40,165 INFO L225 Difference]: With dead ends: 14389 [2024-11-07 00:36:40,165 INFO L226 Difference]: Without dead ends: 7675 [2024-11-07 00:36:40,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:36:40,173 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 927 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:40,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1276 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:36:40,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2024-11-07 00:36:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6852. [2024-11-07 00:36:40,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.486206393227266) internal successors, (10182), 6851 states have internal predecessors, (10182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10182 transitions. [2024-11-07 00:36:40,274 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10182 transitions. Word has length 138 [2024-11-07 00:36:40,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:40,274 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10182 transitions. [2024-11-07 00:36:40,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10182 transitions. [2024-11-07 00:36:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-07 00:36:40,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:40,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:40,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 00:36:40,276 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:40,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash -68768199, now seen corresponding path program 1 times [2024-11-07 00:36:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:40,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727910467] [2024-11-07 00:36:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:40,713 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 00:36:40,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:40,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727910467] [2024-11-07 00:36:40,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727910467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:40,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:40,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:36:40,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515527127] [2024-11-07 00:36:40,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:40,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:40,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:40,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:40,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:40,715 INFO L87 Difference]: Start difference. First operand 6852 states and 10182 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:41,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:41,590 INFO L93 Difference]: Finished difference Result 20207 states and 30058 transitions. [2024-11-07 00:36:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:36:41,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-07 00:36:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:41,614 INFO L225 Difference]: With dead ends: 20207 [2024-11-07 00:36:41,615 INFO L226 Difference]: Without dead ends: 13628 [2024-11-07 00:36:41,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:36:41,625 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1184 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:41,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1412 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:36:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13628 states. [2024-11-07 00:36:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13628 to 6852. [2024-11-07 00:36:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4846007882061012) internal successors, (10171), 6851 states have internal predecessors, (10171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10171 transitions. [2024-11-07 00:36:41,753 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10171 transitions. Word has length 138 [2024-11-07 00:36:41,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:41,753 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10171 transitions. [2024-11-07 00:36:41,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10171 transitions. [2024-11-07 00:36:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 00:36:41,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:41,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:41,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 00:36:41,756 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:41,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:41,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1141843042, now seen corresponding path program 1 times [2024-11-07 00:36:41,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:41,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550856359] [2024-11-07 00:36:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:41,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:42,183 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 00:36:42,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:42,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550856359] [2024-11-07 00:36:42,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550856359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:42,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:42,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:36:42,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341008115] [2024-11-07 00:36:42,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:42,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:42,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:42,185 INFO L87 Difference]: Start difference. First operand 6852 states and 10171 transitions. Second operand has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:43,056 INFO L93 Difference]: Finished difference Result 20107 states and 29887 transitions. [2024-11-07 00:36:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:36:43,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-07 00:36:43,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:43,086 INFO L225 Difference]: With dead ends: 20107 [2024-11-07 00:36:43,086 INFO L226 Difference]: Without dead ends: 13583 [2024-11-07 00:36:43,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:36:43,097 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1171 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:43,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1385 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:36:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13583 states. [2024-11-07 00:36:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13583 to 6852. [2024-11-07 00:36:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4827032549992702) internal successors, (10158), 6851 states have internal predecessors, (10158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:43,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10158 transitions. [2024-11-07 00:36:43,222 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10158 transitions. Word has length 139 [2024-11-07 00:36:43,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:43,222 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10158 transitions. [2024-11-07 00:36:43,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10158 transitions. [2024-11-07 00:36:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:36:43,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:43,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:43,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 00:36:43,226 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:43,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash 2085661092, now seen corresponding path program 1 times [2024-11-07 00:36:43,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:43,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127956593] [2024-11-07 00:36:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:43,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:43,537 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 00:36:43,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:43,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127956593] [2024-11-07 00:36:43,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127956593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:43,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:43,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:36:43,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305755678] [2024-11-07 00:36:43,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:43,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:43,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:43,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:43,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:43,539 INFO L87 Difference]: Start difference. First operand 6852 states and 10158 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:44,123 INFO L93 Difference]: Finished difference Result 19987 states and 29682 transitions. [2024-11-07 00:36:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:36:44,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-07 00:36:44,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:44,146 INFO L225 Difference]: With dead ends: 19987 [2024-11-07 00:36:44,146 INFO L226 Difference]: Without dead ends: 13528 [2024-11-07 00:36:44,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:36:44,156 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 722 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:44,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 888 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:36:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13528 states. [2024-11-07 00:36:44,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13528 to 6852. [2024-11-07 00:36:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6851 states have (on average 1.4805137936067727) internal successors, (10143), 6851 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 10143 transitions. [2024-11-07 00:36:44,324 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 10143 transitions. Word has length 140 [2024-11-07 00:36:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:44,324 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 10143 transitions. [2024-11-07 00:36:44,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 10143 transitions. [2024-11-07 00:36:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-07 00:36:44,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:44,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:44,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 00:36:44,326 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:44,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:44,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1098028876, now seen corresponding path program 1 times [2024-11-07 00:36:44,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:44,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078329877] [2024-11-07 00:36:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:44,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:44,657 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 00:36:44,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:44,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078329877] [2024-11-07 00:36:44,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078329877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:44,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:44,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:36:44,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173592608] [2024-11-07 00:36:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:44,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:44,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:44,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:44,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:44,660 INFO L87 Difference]: Start difference. First operand 6852 states and 10143 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:45,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:45,363 INFO L93 Difference]: Finished difference Result 20163 states and 29900 transitions. [2024-11-07 00:36:45,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:36:45,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-07 00:36:45,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:45,386 INFO L225 Difference]: With dead ends: 20163 [2024-11-07 00:36:45,386 INFO L226 Difference]: Without dead ends: 13719 [2024-11-07 00:36:45,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:36:45,397 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 1108 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:45,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 1160 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:36:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2024-11-07 00:36:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 6903. [2024-11-07 00:36:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 6902 states have (on average 1.4794262532599247) internal successors, (10211), 6902 states have internal predecessors, (10211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 10211 transitions. [2024-11-07 00:36:45,529 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 10211 transitions. Word has length 141 [2024-11-07 00:36:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:45,530 INFO L471 AbstractCegarLoop]: Abstraction has 6903 states and 10211 transitions. [2024-11-07 00:36:45,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 10211 transitions. [2024-11-07 00:36:45,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:45,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:45,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:45,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 00:36:45,532 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:45,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:45,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1957759301, now seen corresponding path program 1 times [2024-11-07 00:36:45,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:45,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579053011] [2024-11-07 00:36:45,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:45,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:45,630 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 00:36:45,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:45,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579053011] [2024-11-07 00:36:45,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579053011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:45,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:45,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:45,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555425755] [2024-11-07 00:36:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:45,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:45,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:45,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:45,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:45,632 INFO L87 Difference]: Start difference. First operand 6903 states and 10211 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:45,688 INFO L93 Difference]: Finished difference Result 19487 states and 29069 transitions. [2024-11-07 00:36:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:45,709 INFO L225 Difference]: With dead ends: 19487 [2024-11-07 00:36:45,710 INFO L226 Difference]: Without dead ends: 13043 [2024-11-07 00:36:45,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:45,719 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 149 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:45,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 637 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:45,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13043 states. [2024-11-07 00:36:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13043 to 12737. [2024-11-07 00:36:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12737 states, 12736 states have (on average 1.4780150753768844) internal successors, (18824), 12736 states have internal predecessors, (18824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12737 states to 12737 states and 18824 transitions. [2024-11-07 00:36:45,951 INFO L78 Accepts]: Start accepts. Automaton has 12737 states and 18824 transitions. Word has length 142 [2024-11-07 00:36:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:45,952 INFO L471 AbstractCegarLoop]: Abstraction has 12737 states and 18824 transitions. [2024-11-07 00:36:45,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 12737 states and 18824 transitions. [2024-11-07 00:36:45,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:45,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:45,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:45,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 00:36:45,955 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:45,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:45,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2073179973, now seen corresponding path program 1 times [2024-11-07 00:36:45,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:45,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701625339] [2024-11-07 00:36:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:45,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:46,701 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 00:36:46,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:46,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701625339] [2024-11-07 00:36:46,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701625339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:46,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:46,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:36:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344140413] [2024-11-07 00:36:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:46,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:36:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:36:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:36:46,702 INFO L87 Difference]: Start difference. First operand 12737 states and 18824 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:47,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:47,431 INFO L93 Difference]: Finished difference Result 27856 states and 41255 transitions. [2024-11-07 00:36:47,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:36:47,432 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:47,468 INFO L225 Difference]: With dead ends: 27856 [2024-11-07 00:36:47,468 INFO L226 Difference]: Without dead ends: 25174 [2024-11-07 00:36:47,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:36:47,483 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1281 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:47,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 2743 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25174 states. [2024-11-07 00:36:47,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25174 to 12684. [2024-11-07 00:36:47,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12684 states, 12683 states have (on average 1.4781203185366238) internal successors, (18747), 12683 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 18747 transitions. [2024-11-07 00:36:47,773 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 18747 transitions. Word has length 142 [2024-11-07 00:36:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:47,773 INFO L471 AbstractCegarLoop]: Abstraction has 12684 states and 18747 transitions. [2024-11-07 00:36:47,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 18747 transitions. [2024-11-07 00:36:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:47,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:47,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:47,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 00:36:47,775 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:47,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:47,776 INFO L85 PathProgramCache]: Analyzing trace with hash -876630055, now seen corresponding path program 1 times [2024-11-07 00:36:47,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:47,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452698154] [2024-11-07 00:36:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:47,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:48,459 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 00:36:48,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:48,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452698154] [2024-11-07 00:36:48,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452698154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:48,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:48,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:36:48,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819192412] [2024-11-07 00:36:48,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:48,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:36:48,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:36:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:36:48,461 INFO L87 Difference]: Start difference. First operand 12684 states and 18747 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:49,157 INFO L93 Difference]: Finished difference Result 27700 states and 41037 transitions. [2024-11-07 00:36:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:36:49,158 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:49,185 INFO L225 Difference]: With dead ends: 27700 [2024-11-07 00:36:49,185 INFO L226 Difference]: Without dead ends: 25078 [2024-11-07 00:36:49,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:36:49,196 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1015 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:49,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 3092 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:36:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25078 states. [2024-11-07 00:36:49,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25078 to 12666. [2024-11-07 00:36:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12666 states, 12665 states have (on average 1.4776154757204896) internal successors, (18714), 12665 states have internal predecessors, (18714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:49,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12666 states to 12666 states and 18714 transitions. [2024-11-07 00:36:49,448 INFO L78 Accepts]: Start accepts. Automaton has 12666 states and 18714 transitions. Word has length 142 [2024-11-07 00:36:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:49,448 INFO L471 AbstractCegarLoop]: Abstraction has 12666 states and 18714 transitions. [2024-11-07 00:36:49,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 12666 states and 18714 transitions. [2024-11-07 00:36:49,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:49,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:49,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:49,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 00:36:49,450 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:49,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:49,451 INFO L85 PathProgramCache]: Analyzing trace with hash 316458939, now seen corresponding path program 1 times [2024-11-07 00:36:49,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:49,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794433670] [2024-11-07 00:36:49,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:49,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:50,141 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 00:36:50,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:50,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794433670] [2024-11-07 00:36:50,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794433670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:50,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:50,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 00:36:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655856242] [2024-11-07 00:36:50,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:50,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:36:50,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:50,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:36:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:36:50,143 INFO L87 Difference]: Start difference. First operand 12666 states and 18714 transitions. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:50,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:50,842 INFO L93 Difference]: Finished difference Result 52178 states and 77450 transitions. [2024-11-07 00:36:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:36:50,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:50,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:50,892 INFO L225 Difference]: With dead ends: 52178 [2024-11-07 00:36:50,892 INFO L226 Difference]: Without dead ends: 49592 [2024-11-07 00:36:50,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-07 00:36:50,906 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 1479 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:50,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 3039 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:36:50,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49592 states. [2024-11-07 00:36:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49592 to 12692. [2024-11-07 00:36:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12692 states, 12691 states have (on average 1.477661334804192) internal successors, (18753), 12691 states have internal predecessors, (18753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12692 states to 12692 states and 18753 transitions. [2024-11-07 00:36:51,196 INFO L78 Accepts]: Start accepts. Automaton has 12692 states and 18753 transitions. Word has length 142 [2024-11-07 00:36:51,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:51,196 INFO L471 AbstractCegarLoop]: Abstraction has 12692 states and 18753 transitions. [2024-11-07 00:36:51,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:51,196 INFO L276 IsEmpty]: Start isEmpty. Operand 12692 states and 18753 transitions. [2024-11-07 00:36:51,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:51,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:51,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:51,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 00:36:51,198 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:51,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1995731110, now seen corresponding path program 1 times [2024-11-07 00:36:51,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:51,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660207313] [2024-11-07 00:36:51,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:51,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:51,916 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 00:36:51,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:51,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660207313] [2024-11-07 00:36:51,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660207313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:51,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:51,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 00:36:51,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882727703] [2024-11-07 00:36:51,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:51,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:36:51,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:51,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:36:51,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:36:51,918 INFO L87 Difference]: Start difference. First operand 12692 states and 18753 transitions. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:52,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:52,742 INFO L93 Difference]: Finished difference Result 52558 states and 77907 transitions. [2024-11-07 00:36:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:36:52,743 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:52,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:52,799 INFO L225 Difference]: With dead ends: 52558 [2024-11-07 00:36:52,799 INFO L226 Difference]: Without dead ends: 49908 [2024-11-07 00:36:52,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-07 00:36:52,819 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1734 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:52,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 3171 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:36:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49908 states. [2024-11-07 00:36:53,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49908 to 12660. [2024-11-07 00:36:53,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12660 states, 12659 states have (on average 1.4775258709218737) internal successors, (18704), 12659 states have internal predecessors, (18704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12660 states to 12660 states and 18704 transitions. [2024-11-07 00:36:53,182 INFO L78 Accepts]: Start accepts. Automaton has 12660 states and 18704 transitions. Word has length 142 [2024-11-07 00:36:53,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:53,182 INFO L471 AbstractCegarLoop]: Abstraction has 12660 states and 18704 transitions. [2024-11-07 00:36:53,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand 12660 states and 18704 transitions. [2024-11-07 00:36:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:53,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:53,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:53,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-07 00:36:53,184 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:53,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash -694524325, now seen corresponding path program 1 times [2024-11-07 00:36:53,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:53,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305780297] [2024-11-07 00:36:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:53,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:54,820 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 00:36:54,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305780297] [2024-11-07 00:36:54,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305780297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:54,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:54,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-07 00:36:54,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281915411] [2024-11-07 00:36:54,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:54,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 00:36:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 00:36:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:36:54,822 INFO L87 Difference]: Start difference. First operand 12660 states and 18704 transitions. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:57,494 INFO L93 Difference]: Finished difference Result 52690 states and 78059 transitions. [2024-11-07 00:36:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-07 00:36:57,495 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:57,548 INFO L225 Difference]: With dead ends: 52690 [2024-11-07 00:36:57,548 INFO L226 Difference]: Without dead ends: 50060 [2024-11-07 00:36:57,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=485, Invalid=2167, Unknown=0, NotChecked=0, Total=2652 [2024-11-07 00:36:57,563 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 2402 mSDsluCounter, 8056 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 8699 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:57,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 8699 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 00:36:57,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50060 states. [2024-11-07 00:36:57,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50060 to 12680. [2024-11-07 00:36:57,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 12679 states have (on average 1.4768514867103084) internal successors, (18725), 12679 states have internal predecessors, (18725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 18725 transitions. [2024-11-07 00:36:57,870 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 18725 transitions. Word has length 142 [2024-11-07 00:36:57,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:57,870 INFO L471 AbstractCegarLoop]: Abstraction has 12680 states and 18725 transitions. [2024-11-07 00:36:57,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 18725 transitions. [2024-11-07 00:36:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:57,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:57,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:57,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 00:36:57,871 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:57,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:57,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1912732381, now seen corresponding path program 1 times [2024-11-07 00:36:57,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:57,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283748764] [2024-11-07 00:36:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:57,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:58,492 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 00:36:58,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:58,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283748764] [2024-11-07 00:36:58,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283748764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:58,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:58,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:36:58,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642850681] [2024-11-07 00:36:58,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:58,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:36:58,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:36:58,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:36:58,494 INFO L87 Difference]: Start difference. First operand 12680 states and 18725 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:59,053 INFO L93 Difference]: Finished difference Result 16597 states and 24535 transitions. [2024-11-07 00:36:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:36:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:36:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:59,067 INFO L225 Difference]: With dead ends: 16597 [2024-11-07 00:36:59,068 INFO L226 Difference]: Without dead ends: 13885 [2024-11-07 00:36:59,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:36:59,077 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 1508 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:59,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 2352 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13885 states. [2024-11-07 00:36:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13885 to 12585. [2024-11-07 00:36:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12585 states, 12584 states have (on average 1.478305785123967) internal successors, (18603), 12584 states have internal predecessors, (18603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12585 states to 12585 states and 18603 transitions. [2024-11-07 00:36:59,262 INFO L78 Accepts]: Start accepts. Automaton has 12585 states and 18603 transitions. Word has length 142 [2024-11-07 00:36:59,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:59,262 INFO L471 AbstractCegarLoop]: Abstraction has 12585 states and 18603 transitions. [2024-11-07 00:36:59,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 12585 states and 18603 transitions. [2024-11-07 00:36:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:36:59,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:59,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:59,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-07 00:36:59,264 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:59,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash -934594466, now seen corresponding path program 1 times [2024-11-07 00:36:59,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:59,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780192919] [2024-11-07 00:36:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:59,802 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 00:36:59,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:59,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780192919] [2024-11-07 00:36:59,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780192919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:59,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:59,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:36:59,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743219772] [2024-11-07 00:36:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:59,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 00:36:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 00:36:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:36:59,804 INFO L87 Difference]: Start difference. First operand 12585 states and 18603 transitions. Second operand has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:37:00,221 INFO L93 Difference]: Finished difference Result 27455 states and 40708 transitions. [2024-11-07 00:37:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:37:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:37:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:37:00,246 INFO L225 Difference]: With dead ends: 27455 [2024-11-07 00:37:00,247 INFO L226 Difference]: Without dead ends: 24808 [2024-11-07 00:37:00,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-07 00:37:00,259 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 876 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:37:00,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 2242 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:37:00,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24808 states. [2024-11-07 00:37:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24808 to 12530. [2024-11-07 00:37:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12530 states, 12529 states have (on average 1.4792880517200095) internal successors, (18534), 12529 states have internal predecessors, (18534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12530 states to 12530 states and 18534 transitions. [2024-11-07 00:37:00,428 INFO L78 Accepts]: Start accepts. Automaton has 12530 states and 18534 transitions. Word has length 142 [2024-11-07 00:37:00,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:37:00,428 INFO L471 AbstractCegarLoop]: Abstraction has 12530 states and 18534 transitions. [2024-11-07 00:37:00,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12530 states and 18534 transitions. [2024-11-07 00:37:00,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 00:37:00,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:37:00,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:37:00,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-07 00:37:00,429 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:37:00,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:37:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash 99414207, now seen corresponding path program 1 times [2024-11-07 00:37:00,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:37:00,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979624463] [2024-11-07 00:37:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:37:00,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:37:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:37:05,446 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 00:37:05,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:37:05,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979624463] [2024-11-07 00:37:05,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979624463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:37:05,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:37:05,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2024-11-07 00:37:05,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493874072] [2024-11-07 00:37:05,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:37:05,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-07 00:37:05,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:37:05,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-07 00:37:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=2387, Unknown=0, NotChecked=0, Total=2550 [2024-11-07 00:37:05,449 INFO L87 Difference]: Start difference. First operand 12530 states and 18534 transitions. Second operand has 51 states, 51 states have (on average 2.803921568627451) internal successors, (143), 51 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:37:15,471 INFO L93 Difference]: Finished difference Result 27459 states and 40710 transitions. [2024-11-07 00:37:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-07 00:37:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.803921568627451) internal successors, (143), 51 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-07 00:37:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:37:15,496 INFO L225 Difference]: With dead ends: 27459 [2024-11-07 00:37:15,497 INFO L226 Difference]: Without dead ends: 24873 [2024-11-07 00:37:15,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1276, Invalid=8036, Unknown=0, NotChecked=0, Total=9312 [2024-11-07 00:37:15,504 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1287 mSDsluCounter, 9233 mSDsCounter, 0 mSdLazyCounter, 6794 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 9545 SdHoareTripleChecker+Invalid, 6820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:37:15,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 9545 Invalid, 6820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6794 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-07 00:37:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24873 states. [2024-11-07 00:37:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24873 to 12556. [2024-11-07 00:37:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12556 states, 12555 states have (on average 1.4787733970529668) internal successors, (18566), 12555 states have internal predecessors, (18566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12556 states to 12556 states and 18566 transitions. [2024-11-07 00:37:15,667 INFO L78 Accepts]: Start accepts. Automaton has 12556 states and 18566 transitions. Word has length 143 [2024-11-07 00:37:15,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:37:15,667 INFO L471 AbstractCegarLoop]: Abstraction has 12556 states and 18566 transitions. [2024-11-07 00:37:15,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.803921568627451) internal successors, (143), 51 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:15,667 INFO L276 IsEmpty]: Start isEmpty. Operand 12556 states and 18566 transitions. [2024-11-07 00:37:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 00:37:15,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:37:15,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:37:15,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-07 00:37:15,668 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:37:15,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:37:15,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1647826627, now seen corresponding path program 1 times [2024-11-07 00:37:15,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:37:15,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982296891] [2024-11-07 00:37:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:37:15,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:37:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:37:15,994 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 00:37:15,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:37:15,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982296891] [2024-11-07 00:37:15,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982296891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:37:15,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:37:15,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:37:15,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369282467] [2024-11-07 00:37:15,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:37:15,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:37:15,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:37:15,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:37:15,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:37:15,996 INFO L87 Difference]: Start difference. First operand 12556 states and 18566 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:16,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:37:16,047 INFO L93 Difference]: Finished difference Result 12630 states and 18675 transitions. [2024-11-07 00:37:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:37:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-07 00:37:16,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:37:16,064 INFO L225 Difference]: With dead ends: 12630 [2024-11-07 00:37:16,064 INFO L226 Difference]: Without dead ends: 12628 [2024-11-07 00:37:16,070 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 00:37:16,070 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:37:16,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:37:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12628 states. [2024-11-07 00:37:16,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12628 to 12628. [2024-11-07 00:37:16,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12628 states, 12627 states have (on average 1.4728755840658905) internal successors, (18598), 12627 states have internal predecessors, (18598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12628 states to 12628 states and 18598 transitions. [2024-11-07 00:37:16,226 INFO L78 Accepts]: Start accepts. Automaton has 12628 states and 18598 transitions. Word has length 143 [2024-11-07 00:37:16,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:37:16,227 INFO L471 AbstractCegarLoop]: Abstraction has 12628 states and 18598 transitions. [2024-11-07 00:37:16,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:16,227 INFO L276 IsEmpty]: Start isEmpty. Operand 12628 states and 18598 transitions. [2024-11-07 00:37:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 00:37:16,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:37:16,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:37:16,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-07 00:37:16,228 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:37:16,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:37:16,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1820135423, now seen corresponding path program 1 times [2024-11-07 00:37:16,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:37:16,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550270814] [2024-11-07 00:37:16,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:37:16,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:37:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:37:16,434 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 00:37:16,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:37:16,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550270814] [2024-11-07 00:37:16,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550270814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:37:16,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:37:16,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:37:16,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353891442] [2024-11-07 00:37:16,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:37:16,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:37:16,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:37:16,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:37:16,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:37:16,436 INFO L87 Difference]: Start difference. First operand 12628 states and 18598 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:16,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:37:16,536 INFO L93 Difference]: Finished difference Result 30388 states and 44908 transitions. [2024-11-07 00:37:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:37:16,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-07 00:37:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:37:16,614 INFO L225 Difference]: With dead ends: 30388 [2024-11-07 00:37:16,618 INFO L226 Difference]: Without dead ends: 18038 [2024-11-07 00:37:16,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:37:16,630 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 134 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:37:16,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 679 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:37:16,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18038 states. [2024-11-07 00:37:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18038 to 17968. [2024-11-07 00:37:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17968 states, 17967 states have (on average 1.4685812879167361) internal successors, (26386), 17967 states have internal predecessors, (26386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17968 states to 17968 states and 26386 transitions. [2024-11-07 00:37:16,930 INFO L78 Accepts]: Start accepts. Automaton has 17968 states and 26386 transitions. Word has length 143 [2024-11-07 00:37:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:37:16,930 INFO L471 AbstractCegarLoop]: Abstraction has 17968 states and 26386 transitions. [2024-11-07 00:37:16,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:37:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 17968 states and 26386 transitions. [2024-11-07 00:37:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 00:37:16,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:37:16,931 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:37:16,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-07 00:37:16,932 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:37:16,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:37:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash 668189268, now seen corresponding path program 1 times [2024-11-07 00:37:16,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:37:16,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441418026] [2024-11-07 00:37:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:37:16,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:37:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:37:19,800 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 00:37:19,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:37:19,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441418026] [2024-11-07 00:37:19,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441418026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:37:19,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:37:19,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2024-11-07 00:37:19,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294212978] [2024-11-07 00:37:19,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:37:19,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-07 00:37:19,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:37:19,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-07 00:37:19,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1182, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 00:37:19,802 INFO L87 Difference]: Start difference. First operand 17968 states and 26386 transitions. Second operand has 36 states, 36 states have (on average 3.9722222222222223) internal successors, (143), 36 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)