./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.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.5.ufo.BOUNDED-10.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', 'eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d'] 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.5.ufo.BOUNDED-10.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 eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:32:34,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:32:34,520 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:32:34,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:32:34,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:32:34,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:32:34,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:32:34,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:32:34,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:32:34,567 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:32:34,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:32:34,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:32:34,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:32:34,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:32:34,569 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:32:34,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:32:34,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:32:34,569 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:32:34,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:32:34,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:32:34,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:32:34,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:32:34,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:32:34,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:32:34,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:32:34,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:32:34,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:32:34,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:32:34,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:32:34,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:32:34,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:32:34,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:32:34,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:32:34,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:32:34,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:32:34,574 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 -> eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d [2024-11-07 00:32:34,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:32:34,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:32:34,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:32:34,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:32:34,898 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:32:34,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-07 00:32:36,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:32:36,618 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:32:36,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-07 00:32:36,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ad4304bf9/224c9cc036d64b65a6fe3e62027d43cd/FLAG9674c716c [2024-11-07 00:32:36,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ad4304bf9/224c9cc036d64b65a6fe3e62027d43cd [2024-11-07 00:32:36,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:32:36,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:32:36,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:32:36,666 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:32:36,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:32:36,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:32:36" (1/1) ... [2024-11-07 00:32:36,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3247b408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:36, skipping insertion in model container [2024-11-07 00:32:36,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:32:36" (1/1) ... [2024-11-07 00:32:36,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:32:36,979 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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7979,7992] [2024-11-07 00:32:37,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:32:37,059 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:32:37,139 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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7979,7992] [2024-11-07 00:32:37,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:32:37,205 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:32:37,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37 WrapperNode [2024-11-07 00:32:37,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:32:37,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:32:37,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:32:37,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:32:37,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,288 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 686 [2024-11-07 00:32:37,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:32:37,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:32:37,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:32:37,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:32:37,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,337 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 00:32:37,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:32:37,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:32:37,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:32:37,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:32:37,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (1/1) ... [2024-11-07 00:32:37,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:32:37,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:32:37,449 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 00:32:37,452 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 00:32:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:32:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:32:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:32:37,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:32:37,617 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:32:37,619 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:32:38,376 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-07 00:32:38,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:32:38,391 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:32:38,391 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:32:38,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:32:38 BoogieIcfgContainer [2024-11-07 00:32:38,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:32:38,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:32:38,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:32:38,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:32:38,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:32:36" (1/3) ... [2024-11-07 00:32:38,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9355bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:32:38, skipping insertion in model container [2024-11-07 00:32:38,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:37" (2/3) ... [2024-11-07 00:32:38,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9355bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:32:38, skipping insertion in model container [2024-11-07 00:32:38,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:32:38" (3/3) ... [2024-11-07 00:32:38,409 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-07 00:32:38,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:32:38,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:32:38,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:32:38,504 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;@3b77f046, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:32:38,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:32:38,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7567567567567568) internal successors, (260), 149 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 00:32:38,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:38,526 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] [2024-11-07 00:32:38,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:38,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash -95572409, now seen corresponding path program 1 times [2024-11-07 00:32:38,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653322126] [2024-11-07 00:32:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:39,346 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 00:32:39,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:39,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653322126] [2024-11-07 00:32:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653322126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:39,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:39,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:39,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546650027] [2024-11-07 00:32:39,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:39,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:39,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:39,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:39,382 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7567567567567568) internal successors, (260), 149 states have internal predecessors, (260), 0 states have call successors, (0), 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 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:39,861 INFO L93 Difference]: Finished difference Result 845 states and 1355 transitions. [2024-11-07 00:32:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 00:32:39,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-07 00:32:39,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:39,881 INFO L225 Difference]: With dead ends: 845 [2024-11-07 00:32:39,882 INFO L226 Difference]: Without dead ends: 751 [2024-11-07 00:32:39,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:39,893 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 1636 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:39,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 1886 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:32:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-07 00:32:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 227. [2024-11-07 00:32:39,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4513274336283186) internal successors, (328), 226 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 328 transitions. [2024-11-07 00:32:39,972 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 328 transitions. Word has length 76 [2024-11-07 00:32:39,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:39,973 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 328 transitions. [2024-11-07 00:32:39,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 328 transitions. [2024-11-07 00:32:39,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:39,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:39,975 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] [2024-11-07 00:32:39,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:32:39,976 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:39,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash -136563640, now seen corresponding path program 1 times [2024-11-07 00:32:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:39,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31357595] [2024-11-07 00:32:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:40,405 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 00:32:40,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:40,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31357595] [2024-11-07 00:32:40,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31357595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:40,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:40,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:40,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406184884] [2024-11-07 00:32:40,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:40,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:40,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:40,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:40,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:40,410 INFO L87 Difference]: Start difference. First operand 227 states and 328 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:40,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:40,638 INFO L93 Difference]: Finished difference Result 922 states and 1419 transitions. [2024-11-07 00:32:40,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:40,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:40,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:40,644 INFO L225 Difference]: With dead ends: 922 [2024-11-07 00:32:40,644 INFO L226 Difference]: Without dead ends: 802 [2024-11-07 00:32:40,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:40,648 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1023 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:40,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1240 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:40,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-07 00:32:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 356. [2024-11-07 00:32:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 355 states have (on average 1.4985915492957746) internal successors, (532), 355 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 532 transitions. [2024-11-07 00:32:40,697 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 532 transitions. Word has length 78 [2024-11-07 00:32:40,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:40,698 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 532 transitions. [2024-11-07 00:32:40,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 532 transitions. [2024-11-07 00:32:40,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:40,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:40,700 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] [2024-11-07 00:32:40,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:32:40,700 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:40,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:40,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1646592496, now seen corresponding path program 1 times [2024-11-07 00:32:40,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:40,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634388363] [2024-11-07 00:32:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:40,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:40,967 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 00:32:40,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:40,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634388363] [2024-11-07 00:32:40,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634388363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:40,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:40,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248096128] [2024-11-07 00:32:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:40,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:40,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:40,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:40,973 INFO L87 Difference]: Start difference. First operand 356 states and 532 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:41,144 INFO L93 Difference]: Finished difference Result 1046 states and 1615 transitions. [2024-11-07 00:32:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:41,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:41,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:41,152 INFO L225 Difference]: With dead ends: 1046 [2024-11-07 00:32:41,154 INFO L226 Difference]: Without dead ends: 926 [2024-11-07 00:32:41,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:41,157 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1287 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:41,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1050 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-07 00:32:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 539. [2024-11-07 00:32:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.5260223048327137) internal successors, (821), 538 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 821 transitions. [2024-11-07 00:32:41,193 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 821 transitions. Word has length 78 [2024-11-07 00:32:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:41,193 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 821 transitions. [2024-11-07 00:32:41,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 821 transitions. [2024-11-07 00:32:41,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:41,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:41,195 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] [2024-11-07 00:32:41,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:32:41,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:41,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:41,199 INFO L85 PathProgramCache]: Analyzing trace with hash 641558373, now seen corresponding path program 1 times [2024-11-07 00:32:41,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:41,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900497413] [2024-11-07 00:32:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:41,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:41,665 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 00:32:41,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:41,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900497413] [2024-11-07 00:32:41,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900497413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:41,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:41,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:41,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366848083] [2024-11-07 00:32:41,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:41,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:41,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:41,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:41,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:41,668 INFO L87 Difference]: Start difference. First operand 539 states and 821 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:41,877 INFO L93 Difference]: Finished difference Result 956 states and 1478 transitions. [2024-11-07 00:32:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:41,881 INFO L225 Difference]: With dead ends: 956 [2024-11-07 00:32:41,881 INFO L226 Difference]: Without dead ends: 541 [2024-11-07 00:32:41,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:32:41,884 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 484 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:41,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 678 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:41,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-07 00:32:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2024-11-07 00:32:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.5185873605947955) internal successors, (817), 538 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 817 transitions. [2024-11-07 00:32:41,913 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 817 transitions. Word has length 78 [2024-11-07 00:32:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:41,914 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 817 transitions. [2024-11-07 00:32:41,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 817 transitions. [2024-11-07 00:32:41,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:41,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:41,919 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] [2024-11-07 00:32:41,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:32:41,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:41,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash 434659878, now seen corresponding path program 1 times [2024-11-07 00:32:41,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:41,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506891271] [2024-11-07 00:32:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:41,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:42,006 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 00:32:42,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:42,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506891271] [2024-11-07 00:32:42,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506891271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:42,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:42,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:42,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683100521] [2024-11-07 00:32:42,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:42,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:42,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:42,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:42,009 INFO L87 Difference]: Start difference. First operand 539 states and 817 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:42,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:42,052 INFO L93 Difference]: Finished difference Result 1324 states and 2046 transitions. [2024-11-07 00:32:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:42,057 INFO L225 Difference]: With dead ends: 1324 [2024-11-07 00:32:42,057 INFO L226 Difference]: Without dead ends: 909 [2024-11-07 00:32:42,058 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 00:32:42,059 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 83 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:42,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 470 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:42,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-07 00:32:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 907. [2024-11-07 00:32:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 906 states have (on average 1.5220750551876379) internal successors, (1379), 906 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1379 transitions. [2024-11-07 00:32:42,094 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1379 transitions. Word has length 78 [2024-11-07 00:32:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:42,094 INFO L471 AbstractCegarLoop]: Abstraction has 907 states and 1379 transitions. [2024-11-07 00:32:42,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1379 transitions. [2024-11-07 00:32:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:42,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:42,095 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] [2024-11-07 00:32:42,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:32:42,096 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:42,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash 450386228, now seen corresponding path program 1 times [2024-11-07 00:32:42,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:42,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090137736] [2024-11-07 00:32:42,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:42,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:42,332 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 00:32:42,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:42,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090137736] [2024-11-07 00:32:42,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090137736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:42,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:42,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:42,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10921514] [2024-11-07 00:32:42,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:42,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:42,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:42,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:42,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:42,335 INFO L87 Difference]: Start difference. First operand 907 states and 1379 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:42,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:42,550 INFO L93 Difference]: Finished difference Result 2058 states and 3161 transitions. [2024-11-07 00:32:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:42,561 INFO L225 Difference]: With dead ends: 2058 [2024-11-07 00:32:42,562 INFO L226 Difference]: Without dead ends: 1833 [2024-11-07 00:32:42,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:42,565 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1032 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:42,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1387 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2024-11-07 00:32:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1131. [2024-11-07 00:32:42,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1130 states have (on average 1.527433628318584) internal successors, (1726), 1130 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:42,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1726 transitions. [2024-11-07 00:32:42,619 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1726 transitions. Word has length 78 [2024-11-07 00:32:42,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:42,620 INFO L471 AbstractCegarLoop]: Abstraction has 1131 states and 1726 transitions. [2024-11-07 00:32:42,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:42,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1726 transitions. [2024-11-07 00:32:42,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:42,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:42,621 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] [2024-11-07 00:32:42,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:32:42,622 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:42,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1926158884, now seen corresponding path program 1 times [2024-11-07 00:32:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:42,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382909723] [2024-11-07 00:32:42,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:42,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:42,834 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 00:32:42,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:42,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382909723] [2024-11-07 00:32:42,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382909723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:42,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:42,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:42,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720782751] [2024-11-07 00:32:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:42,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:42,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:42,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:42,838 INFO L87 Difference]: Start difference. First operand 1131 states and 1726 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:43,013 INFO L93 Difference]: Finished difference Result 2292 states and 3524 transitions. [2024-11-07 00:32:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:43,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:43,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:43,022 INFO L225 Difference]: With dead ends: 2292 [2024-11-07 00:32:43,023 INFO L226 Difference]: Without dead ends: 2067 [2024-11-07 00:32:43,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:43,025 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1077 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:43,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 1595 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2024-11-07 00:32:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1370. [2024-11-07 00:32:43,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 1.5317750182615046) internal successors, (2097), 1369 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 2097 transitions. [2024-11-07 00:32:43,076 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 2097 transitions. Word has length 78 [2024-11-07 00:32:43,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:43,076 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 2097 transitions. [2024-11-07 00:32:43,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 2097 transitions. [2024-11-07 00:32:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:32:43,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:43,077 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] [2024-11-07 00:32:43,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:32:43,077 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:43,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash 100434268, now seen corresponding path program 1 times [2024-11-07 00:32:43,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:43,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942273366] [2024-11-07 00:32:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:43,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:43,285 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 00:32:43,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942273366] [2024-11-07 00:32:43,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942273366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:43,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:43,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:43,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205497660] [2024-11-07 00:32:43,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:43,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:43,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:43,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:43,288 INFO L87 Difference]: Start difference. First operand 1370 states and 2097 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:43,477 INFO L93 Difference]: Finished difference Result 2531 states and 3895 transitions. [2024-11-07 00:32:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 00:32:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:43,488 INFO L225 Difference]: With dead ends: 2531 [2024-11-07 00:32:43,488 INFO L226 Difference]: Without dead ends: 2306 [2024-11-07 00:32:43,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:43,491 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 1081 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:43,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1257 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2024-11-07 00:32:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1609. [2024-11-07 00:32:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.5348258706467661) internal successors, (2468), 1608 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2468 transitions. [2024-11-07 00:32:43,551 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2468 transitions. Word has length 78 [2024-11-07 00:32:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:43,551 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2468 transitions. [2024-11-07 00:32:43,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2468 transitions. [2024-11-07 00:32:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 00:32:43,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:43,553 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] [2024-11-07 00:32:43,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:32:43,553 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:43,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:43,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1588436194, now seen corresponding path program 1 times [2024-11-07 00:32:43,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:43,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820705287] [2024-11-07 00:32:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:43,716 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 00:32:43,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:43,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820705287] [2024-11-07 00:32:43,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820705287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:43,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:43,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:43,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222680751] [2024-11-07 00:32:43,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:43,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:43,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:43,718 INFO L87 Difference]: Start difference. First operand 1609 states and 2468 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:43,857 INFO L93 Difference]: Finished difference Result 3180 states and 4897 transitions. [2024-11-07 00:32:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:43,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-07 00:32:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:43,864 INFO L225 Difference]: With dead ends: 3180 [2024-11-07 00:32:43,864 INFO L226 Difference]: Without dead ends: 1609 [2024-11-07 00:32:43,866 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 00:32:43,867 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 554 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:43,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 110 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-11-07 00:32:43,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2024-11-07 00:32:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.5180348258706469) internal successors, (2441), 1608 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2441 transitions. [2024-11-07 00:32:43,906 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2441 transitions. Word has length 79 [2024-11-07 00:32:43,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:43,906 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2441 transitions. [2024-11-07 00:32:43,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2441 transitions. [2024-11-07 00:32:43,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:32:43,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:43,908 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] [2024-11-07 00:32:43,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:32:43,908 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:43,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:43,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1613161725, now seen corresponding path program 1 times [2024-11-07 00:32:43,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:43,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722434410] [2024-11-07 00:32:43,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:43,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:44,062 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 00:32:44,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:44,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722434410] [2024-11-07 00:32:44,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722434410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:44,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:44,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:44,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725760603] [2024-11-07 00:32:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:44,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:44,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:44,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:44,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:44,065 INFO L87 Difference]: Start difference. First operand 1609 states and 2441 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:44,225 INFO L93 Difference]: Finished difference Result 3164 states and 4824 transitions. [2024-11-07 00:32:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-07 00:32:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:44,233 INFO L225 Difference]: With dead ends: 3164 [2024-11-07 00:32:44,233 INFO L226 Difference]: Without dead ends: 1609 [2024-11-07 00:32:44,236 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 00:32:44,237 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 503 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:44,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 142 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-11-07 00:32:44,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2024-11-07 00:32:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.5012437810945274) internal successors, (2414), 1608 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2414 transitions. [2024-11-07 00:32:44,286 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2414 transitions. Word has length 80 [2024-11-07 00:32:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:44,286 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2414 transitions. [2024-11-07 00:32:44,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2414 transitions. [2024-11-07 00:32:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:32:44,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:44,288 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] [2024-11-07 00:32:44,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:32:44,288 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:44,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:44,289 INFO L85 PathProgramCache]: Analyzing trace with hash -105949250, now seen corresponding path program 1 times [2024-11-07 00:32:44,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:44,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270160231] [2024-11-07 00:32:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:44,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:44,422 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 00:32:44,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:44,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270160231] [2024-11-07 00:32:44,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270160231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:44,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:44,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:44,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471753714] [2024-11-07 00:32:44,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:44,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:44,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:44,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:44,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:44,424 INFO L87 Difference]: Start difference. First operand 1609 states and 2414 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:44,567 INFO L93 Difference]: Finished difference Result 3168 states and 4775 transitions. [2024-11-07 00:32:44,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:44,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 00:32:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:44,574 INFO L225 Difference]: With dead ends: 3168 [2024-11-07 00:32:44,575 INFO L226 Difference]: Without dead ends: 1609 [2024-11-07 00:32:44,577 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 00:32:44,578 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 508 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:44,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 134 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-11-07 00:32:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2024-11-07 00:32:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.484452736318408) internal successors, (2387), 1608 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2387 transitions. [2024-11-07 00:32:44,620 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2387 transitions. Word has length 81 [2024-11-07 00:32:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:44,620 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2387 transitions. [2024-11-07 00:32:44,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2387 transitions. [2024-11-07 00:32:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:32:44,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:44,622 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] [2024-11-07 00:32:44,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:32:44,623 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:44,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1094855209, now seen corresponding path program 1 times [2024-11-07 00:32:44,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:44,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143491258] [2024-11-07 00:32:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:44,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:44,749 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 00:32:44,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:44,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143491258] [2024-11-07 00:32:44,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143491258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:44,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:44,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:44,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039926107] [2024-11-07 00:32:44,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:44,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:44,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:44,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:44,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:44,752 INFO L87 Difference]: Start difference. First operand 1609 states and 2387 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:44,888 INFO L93 Difference]: Finished difference Result 3176 states and 4731 transitions. [2024-11-07 00:32:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:44,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-07 00:32:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:44,894 INFO L225 Difference]: With dead ends: 3176 [2024-11-07 00:32:44,895 INFO L226 Difference]: Without dead ends: 1609 [2024-11-07 00:32:44,897 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 00:32:44,898 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 524 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:44,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 118 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:44,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-11-07 00:32:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2024-11-07 00:32:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.4676616915422886) internal successors, (2360), 1608 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2360 transitions. [2024-11-07 00:32:44,938 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2360 transitions. Word has length 82 [2024-11-07 00:32:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:44,938 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2360 transitions. [2024-11-07 00:32:44,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2360 transitions. [2024-11-07 00:32:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 00:32:44,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:44,940 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] [2024-11-07 00:32:44,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:32:44,940 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:44,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:44,940 INFO L85 PathProgramCache]: Analyzing trace with hash -674687266, now seen corresponding path program 1 times [2024-11-07 00:32:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:44,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860571965] [2024-11-07 00:32:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:45,054 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 00:32:45,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:45,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860571965] [2024-11-07 00:32:45,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860571965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:45,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:45,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:45,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213605404] [2024-11-07 00:32:45,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:45,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:45,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:45,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:45,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:45,057 INFO L87 Difference]: Start difference. First operand 1609 states and 2360 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:45,186 INFO L93 Difference]: Finished difference Result 3172 states and 4673 transitions. [2024-11-07 00:32:45,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:45,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-07 00:32:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:45,194 INFO L225 Difference]: With dead ends: 3172 [2024-11-07 00:32:45,194 INFO L226 Difference]: Without dead ends: 1609 [2024-11-07 00:32:45,197 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 00:32:45,198 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 506 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:45,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 126 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2024-11-07 00:32:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1609. [2024-11-07 00:32:45,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.4508706467661692) internal successors, (2333), 1608 states have internal predecessors, (2333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:45,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2333 transitions. [2024-11-07 00:32:45,260 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2333 transitions. Word has length 83 [2024-11-07 00:32:45,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:45,260 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2333 transitions. [2024-11-07 00:32:45,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:45,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2333 transitions. [2024-11-07 00:32:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:32:45,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:45,262 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] [2024-11-07 00:32:45,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:32:45,262 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:45,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:45,263 INFO L85 PathProgramCache]: Analyzing trace with hash 340263851, now seen corresponding path program 1 times [2024-11-07 00:32:45,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:45,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877801287] [2024-11-07 00:32:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:45,851 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 00:32:45,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:45,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877801287] [2024-11-07 00:32:45,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877801287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:45,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:45,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:32:45,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72142347] [2024-11-07 00:32:45,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:45,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:32:45,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:45,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:32:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:32:45,854 INFO L87 Difference]: Start difference. First operand 1609 states and 2333 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:46,542 INFO L93 Difference]: Finished difference Result 4602 states and 6681 transitions. [2024-11-07 00:32:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:32:46,543 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-07 00:32:46,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:46,556 INFO L225 Difference]: With dead ends: 4602 [2024-11-07 00:32:46,557 INFO L226 Difference]: Without dead ends: 3144 [2024-11-07 00:32:46,562 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 00:32:46,562 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 652 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:46,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 562 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:32:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2024-11-07 00:32:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 1609. [2024-11-07 00:32:46,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.447139303482587) internal successors, (2327), 1608 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2327 transitions. [2024-11-07 00:32:46,650 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2327 transitions. Word has length 84 [2024-11-07 00:32:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:46,650 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2327 transitions. [2024-11-07 00:32:46,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2327 transitions. [2024-11-07 00:32:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:32:46,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:46,651 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:46,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:32:46,652 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:46,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -627321848, now seen corresponding path program 1 times [2024-11-07 00:32:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:46,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116574560] [2024-11-07 00:32:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:47,237 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 00:32:47,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:47,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116574560] [2024-11-07 00:32:47,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116574560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:47,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:47,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:32:47,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688112378] [2024-11-07 00:32:47,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:47,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:32:47,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:47,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:32:47,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:32:47,239 INFO L87 Difference]: Start difference. First operand 1609 states and 2327 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:47,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:47,948 INFO L93 Difference]: Finished difference Result 4692 states and 6809 transitions. [2024-11-07 00:32:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:32:47,948 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:32:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:47,969 INFO L225 Difference]: With dead ends: 4692 [2024-11-07 00:32:47,969 INFO L226 Difference]: Without dead ends: 3179 [2024-11-07 00:32:47,973 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 00:32:47,974 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 846 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:47,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 640 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:32:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2024-11-07 00:32:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 1609. [2024-11-07 00:32:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.4458955223880596) internal successors, (2325), 1608 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2325 transitions. [2024-11-07 00:32:48,023 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2325 transitions. Word has length 85 [2024-11-07 00:32:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:48,023 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2325 transitions. [2024-11-07 00:32:48,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2325 transitions. [2024-11-07 00:32:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:32:48,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:48,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:48,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:32:48,025 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:48,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1853534364, now seen corresponding path program 1 times [2024-11-07 00:32:48,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:48,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771577679] [2024-11-07 00:32:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:48,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:48,422 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 00:32:48,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:48,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771577679] [2024-11-07 00:32:48,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771577679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:48,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:48,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:32:48,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807168482] [2024-11-07 00:32:48,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:48,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:32:48,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:48,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:32:48,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:32:48,424 INFO L87 Difference]: Start difference. First operand 1609 states and 2325 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:48,833 INFO L93 Difference]: Finished difference Result 4585 states and 6671 transitions. [2024-11-07 00:32:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:32:48,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:32:48,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:48,845 INFO L225 Difference]: With dead ends: 4585 [2024-11-07 00:32:48,846 INFO L226 Difference]: Without dead ends: 3067 [2024-11-07 00:32:48,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:32:48,850 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 773 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:48,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 593 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:32:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2024-11-07 00:32:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 1609. [2024-11-07 00:32:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.445273631840796) internal successors, (2324), 1608 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2324 transitions. [2024-11-07 00:32:48,903 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2324 transitions. Word has length 85 [2024-11-07 00:32:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:48,904 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2324 transitions. [2024-11-07 00:32:48,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2324 transitions. [2024-11-07 00:32:48,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:32:48,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:48,905 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] [2024-11-07 00:32:48,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:32:48,905 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:48,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash -337986815, now seen corresponding path program 1 times [2024-11-07 00:32:48,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:48,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768220944] [2024-11-07 00:32:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:49,283 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 00:32:49,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768220944] [2024-11-07 00:32:49,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768220944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:49,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:49,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:32:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032489073] [2024-11-07 00:32:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:49,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:32:49,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:49,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:32:49,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:32:49,287 INFO L87 Difference]: Start difference. First operand 1609 states and 2324 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:49,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:49,928 INFO L93 Difference]: Finished difference Result 4677 states and 6782 transitions. [2024-11-07 00:32:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:32:49,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 00:32:49,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:49,938 INFO L225 Difference]: With dead ends: 4677 [2024-11-07 00:32:49,939 INFO L226 Difference]: Without dead ends: 3174 [2024-11-07 00:32:49,942 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 00:32:49,944 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 760 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:49,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 944 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:32:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2024-11-07 00:32:49,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 1609. [2024-11-07 00:32:49,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.4427860696517414) internal successors, (2320), 1608 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2320 transitions. [2024-11-07 00:32:49,995 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2320 transitions. Word has length 86 [2024-11-07 00:32:49,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:49,996 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2320 transitions. [2024-11-07 00:32:49,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2320 transitions. [2024-11-07 00:32:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 00:32:49,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:49,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:49,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:32:49,997 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:49,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:49,998 INFO L85 PathProgramCache]: Analyzing trace with hash 135072209, now seen corresponding path program 1 times [2024-11-07 00:32:49,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:49,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877304062] [2024-11-07 00:32:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:49,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:50,309 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 00:32:50,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:50,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877304062] [2024-11-07 00:32:50,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877304062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:50,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:50,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:32:50,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178148263] [2024-11-07 00:32:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:50,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:32:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:32:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:32:50,311 INFO L87 Difference]: Start difference. First operand 1609 states and 2320 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:50,761 INFO L93 Difference]: Finished difference Result 4647 states and 6730 transitions. [2024-11-07 00:32:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:32:50,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-07 00:32:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:50,769 INFO L225 Difference]: With dead ends: 4647 [2024-11-07 00:32:50,770 INFO L226 Difference]: Without dead ends: 3164 [2024-11-07 00:32:50,773 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 00:32:50,774 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 730 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:50,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 564 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:32:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2024-11-07 00:32:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 1609. [2024-11-07 00:32:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.439676616915423) internal successors, (2315), 1608 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2315 transitions. [2024-11-07 00:32:50,812 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2315 transitions. Word has length 87 [2024-11-07 00:32:50,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:50,812 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2315 transitions. [2024-11-07 00:32:50,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2315 transitions. [2024-11-07 00:32:50,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:32:50,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:50,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:50,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:32:50,814 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:50,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash -479617813, now seen corresponding path program 1 times [2024-11-07 00:32:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:50,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973366816] [2024-11-07 00:32:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:50,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:51,593 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 00:32:51,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:51,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973366816] [2024-11-07 00:32:51,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973366816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:51,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:51,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:32:51,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389945681] [2024-11-07 00:32:51,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:51,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:32:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:51,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:32:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:32:51,597 INFO L87 Difference]: Start difference. First operand 1609 states and 2315 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:52,288 INFO L93 Difference]: Finished difference Result 3565 states and 5168 transitions. [2024-11-07 00:32:52,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:32:52,289 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 00:32:52,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:52,295 INFO L225 Difference]: With dead ends: 3565 [2024-11-07 00:32:52,296 INFO L226 Difference]: Without dead ends: 3095 [2024-11-07 00:32:52,298 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 00:32:52,299 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 686 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:52,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1531 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:32:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-11-07 00:32:52,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 1598. [2024-11-07 00:32:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1597 states have (on average 1.4376956793988729) internal successors, (2296), 1597 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2296 transitions. [2024-11-07 00:32:52,338 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2296 transitions. Word has length 88 [2024-11-07 00:32:52,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:52,338 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2296 transitions. [2024-11-07 00:32:52,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2296 transitions. [2024-11-07 00:32:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:32:52,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:52,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:52,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:32:52,340 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:52,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:52,341 INFO L85 PathProgramCache]: Analyzing trace with hash -949937908, now seen corresponding path program 1 times [2024-11-07 00:32:52,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:52,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579537422] [2024-11-07 00:32:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:53,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:53,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579537422] [2024-11-07 00:32:53,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579537422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:53,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:53,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 00:32:53,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039740288] [2024-11-07 00:32:53,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:53,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:53,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:53,058 INFO L87 Difference]: Start difference. First operand 1598 states and 2296 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:53,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:53,896 INFO L93 Difference]: Finished difference Result 6436 states and 9359 transitions. [2024-11-07 00:32:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:32:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 00:32:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:53,909 INFO L225 Difference]: With dead ends: 6436 [2024-11-07 00:32:53,909 INFO L226 Difference]: Without dead ends: 5986 [2024-11-07 00:32:53,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-07 00:32:53,914 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 964 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:53,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 2129 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:32:53,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2024-11-07 00:32:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 1597. [2024-11-07 00:32:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 1596 states have (on average 1.4348370927318295) internal successors, (2290), 1596 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 2290 transitions. [2024-11-07 00:32:53,969 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 2290 transitions. Word has length 88 [2024-11-07 00:32:53,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:53,969 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 2290 transitions. [2024-11-07 00:32:53,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:53,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 2290 transitions. [2024-11-07 00:32:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:32:53,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:53,970 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:53,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:32:53,971 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:53,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:53,971 INFO L85 PathProgramCache]: Analyzing trace with hash 373302795, now seen corresponding path program 1 times [2024-11-07 00:32:53,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:53,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055110006] [2024-11-07 00:32:53,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:53,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:54,658 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 00:32:54,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:54,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055110006] [2024-11-07 00:32:54,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055110006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:54,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:54,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 00:32:54,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851468262] [2024-11-07 00:32:54,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:54,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:54,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:54,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:54,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:54,660 INFO L87 Difference]: Start difference. First operand 1597 states and 2290 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:55,492 INFO L93 Difference]: Finished difference Result 6500 states and 9433 transitions. [2024-11-07 00:32:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:32:55,493 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 00:32:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:55,506 INFO L225 Difference]: With dead ends: 6500 [2024-11-07 00:32:55,506 INFO L226 Difference]: Without dead ends: 6020 [2024-11-07 00:32:55,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-07 00:32:55,510 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 1156 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:55,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 2505 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:32:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2024-11-07 00:32:55,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 1571. [2024-11-07 00:32:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 1.4363057324840764) internal successors, (2255), 1570 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:55,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2255 transitions. [2024-11-07 00:32:55,573 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2255 transitions. Word has length 88 [2024-11-07 00:32:55,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:55,573 INFO L471 AbstractCegarLoop]: Abstraction has 1571 states and 2255 transitions. [2024-11-07 00:32:55,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2255 transitions. [2024-11-07 00:32:55,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:32:55,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:55,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:55,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:32:55,575 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:55,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:55,576 INFO L85 PathProgramCache]: Analyzing trace with hash -450290966, now seen corresponding path program 1 times [2024-11-07 00:32:55,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:55,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717035921] [2024-11-07 00:32:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:55,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:56,121 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 00:32:56,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:56,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717035921] [2024-11-07 00:32:56,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717035921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:56,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:56,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:32:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65592889] [2024-11-07 00:32:56,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:56,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 00:32:56,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 00:32:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:32:56,123 INFO L87 Difference]: Start difference. First operand 1571 states and 2255 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:56,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:56,760 INFO L93 Difference]: Finished difference Result 6406 states and 9313 transitions. [2024-11-07 00:32:56,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:32:56,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 00:32:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:56,776 INFO L225 Difference]: With dead ends: 6406 [2024-11-07 00:32:56,777 INFO L226 Difference]: Without dead ends: 5931 [2024-11-07 00:32:56,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-07 00:32:56,782 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 774 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:56,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2591 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:32:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2024-11-07 00:32:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 1544. [2024-11-07 00:32:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1543 states have (on average 1.4394037589112119) internal successors, (2221), 1543 states have internal predecessors, (2221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2221 transitions. [2024-11-07 00:32:56,841 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2221 transitions. Word has length 88 [2024-11-07 00:32:56,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:56,841 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2221 transitions. [2024-11-07 00:32:56,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:56,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2221 transitions. [2024-11-07 00:32:56,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 00:32:56,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:56,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:56,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:32:56,843 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:56,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:56,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1982234760, now seen corresponding path program 1 times [2024-11-07 00:32:56,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:56,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322192041] [2024-11-07 00:32:56,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:56,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:57,057 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 00:32:57,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322192041] [2024-11-07 00:32:57,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322192041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:57,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:57,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:32:57,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707888106] [2024-11-07 00:32:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:57,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:57,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:57,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:57,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:57,059 INFO L87 Difference]: Start difference. First operand 1544 states and 2221 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:57,087 INFO L93 Difference]: Finished difference Result 1558 states and 2240 transitions. [2024-11-07 00:32:57,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:57,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-07 00:32:57,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:57,091 INFO L225 Difference]: With dead ends: 1558 [2024-11-07 00:32:57,091 INFO L226 Difference]: Without dead ends: 1556 [2024-11-07 00:32:57,092 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 00:32:57,092 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:57,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 705 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2024-11-07 00:32:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2024-11-07 00:32:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 1.4315112540192927) internal successors, (2226), 1555 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2226 transitions. [2024-11-07 00:32:57,112 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2226 transitions. Word has length 89 [2024-11-07 00:32:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:57,112 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 2226 transitions. [2024-11-07 00:32:57,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2226 transitions. [2024-11-07 00:32:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 00:32:57,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:57,113 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:57,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:32:57,114 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:57,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:57,114 INFO L85 PathProgramCache]: Analyzing trace with hash 392224756, now seen corresponding path program 1 times [2024-11-07 00:32:57,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:57,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243083486] [2024-11-07 00:32:57,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:57,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:57,249 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 00:32:57,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:57,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243083486] [2024-11-07 00:32:57,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243083486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:57,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:57,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:57,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974047894] [2024-11-07 00:32:57,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:57,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:32:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:57,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:32:57,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:32:57,251 INFO L87 Difference]: Start difference. First operand 1556 states and 2226 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:57,277 INFO L93 Difference]: Finished difference Result 3611 states and 5213 transitions. [2024-11-07 00:32:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:32:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-07 00:32:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:57,282 INFO L225 Difference]: With dead ends: 3611 [2024-11-07 00:32:57,282 INFO L226 Difference]: Without dead ends: 2147 [2024-11-07 00:32:57,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:32:57,285 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 88 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:57,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 432 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:57,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2024-11-07 00:32:57,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2145. [2024-11-07 00:32:57,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.4309701492537314) internal successors, (3068), 2144 states have internal predecessors, (3068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3068 transitions. [2024-11-07 00:32:57,317 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3068 transitions. Word has length 89 [2024-11-07 00:32:57,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:57,317 INFO L471 AbstractCegarLoop]: Abstraction has 2145 states and 3068 transitions. [2024-11-07 00:32:57,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3068 transitions. [2024-11-07 00:32:57,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 00:32:57,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:57,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:57,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 00:32:57,319 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:57,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:57,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1189107016, now seen corresponding path program 1 times [2024-11-07 00:32:57,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:57,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643993439] [2024-11-07 00:32:57,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:57,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:59,261 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 00:32:59,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:59,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643993439] [2024-11-07 00:32:59,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643993439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:59,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:59,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2024-11-07 00:32:59,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648506697] [2024-11-07 00:32:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:59,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-07 00:32:59,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-07 00:32:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2024-11-07 00:32:59,264 INFO L87 Difference]: Start difference. First operand 2145 states and 3068 transitions. Second operand has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 31 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:04,504 INFO L93 Difference]: Finished difference Result 14559 states and 20999 transitions. [2024-11-07 00:33:04,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-07 00:33:04,504 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 31 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-07 00:33:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:04,532 INFO L225 Difference]: With dead ends: 14559 [2024-11-07 00:33:04,533 INFO L226 Difference]: Without dead ends: 12504 [2024-11-07 00:33:04,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=492, Invalid=2814, Unknown=0, NotChecked=0, Total=3306 [2024-11-07 00:33:04,542 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 1452 mSDsluCounter, 8727 mSDsCounter, 0 mSdLazyCounter, 5990 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 9250 SdHoareTripleChecker+Invalid, 6009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 5990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:04,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 9250 Invalid, 6009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 5990 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-07 00:33:04,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12504 states. [2024-11-07 00:33:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12504 to 2166. [2024-11-07 00:33:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 1.4286374133949191) internal successors, (3093), 2165 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 3093 transitions. [2024-11-07 00:33:04,660 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 3093 transitions. Word has length 89 [2024-11-07 00:33:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:04,660 INFO L471 AbstractCegarLoop]: Abstraction has 2166 states and 3093 transitions. [2024-11-07 00:33:04,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 31 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 3093 transitions. [2024-11-07 00:33:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 00:33:04,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:04,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:04,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 00:33:04,662 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:04,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1595507144, now seen corresponding path program 1 times [2024-11-07 00:33:04,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:04,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015749300] [2024-11-07 00:33:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:04,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:05,175 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 00:33:05,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:05,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015749300] [2024-11-07 00:33:05,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015749300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:05,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:05,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:33:05,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125462541] [2024-11-07 00:33:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:05,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:33:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:33:05,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:33:05,177 INFO L87 Difference]: Start difference. First operand 2166 states and 3093 transitions. Second operand has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:05,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:05,603 INFO L93 Difference]: Finished difference Result 4896 states and 7040 transitions. [2024-11-07 00:33:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:33:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-07 00:33:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:05,612 INFO L225 Difference]: With dead ends: 4896 [2024-11-07 00:33:05,613 INFO L226 Difference]: Without dead ends: 4220 [2024-11-07 00:33:05,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-07 00:33:05,615 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 270 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:05,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 947 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:33:05,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2024-11-07 00:33:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 2155. [2024-11-07 00:33:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.4294336118848654) internal successors, (3079), 2154 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3079 transitions. [2024-11-07 00:33:05,654 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3079 transitions. Word has length 90 [2024-11-07 00:33:05,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:05,654 INFO L471 AbstractCegarLoop]: Abstraction has 2155 states and 3079 transitions. [2024-11-07 00:33:05,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:05,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3079 transitions. [2024-11-07 00:33:05,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-07 00:33:05,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:05,656 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:05,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 00:33:05,657 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:05,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:05,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1571867660, now seen corresponding path program 1 times [2024-11-07 00:33:05,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:05,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983461857] [2024-11-07 00:33:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:05,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:05,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:05,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983461857] [2024-11-07 00:33:05,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983461857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:05,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:05,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:05,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610122554] [2024-11-07 00:33:05,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:05,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:05,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:05,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:05,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:05,779 INFO L87 Difference]: Start difference. First operand 2155 states and 3079 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:05,809 INFO L93 Difference]: Finished difference Result 4472 states and 6424 transitions. [2024-11-07 00:33:05,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:05,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-07 00:33:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:05,816 INFO L225 Difference]: With dead ends: 4472 [2024-11-07 00:33:05,816 INFO L226 Difference]: Without dead ends: 3008 [2024-11-07 00:33:05,818 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 00:33:05,818 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 81 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:05,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 393 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:33:05,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-07 00:33:05,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2898. [2024-11-07 00:33:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2897 states have (on average 1.4269934414911978) internal successors, (4134), 2897 states have internal predecessors, (4134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:05,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 4134 transitions. [2024-11-07 00:33:05,854 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 4134 transitions. Word has length 118 [2024-11-07 00:33:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:05,854 INFO L471 AbstractCegarLoop]: Abstraction has 2898 states and 4134 transitions. [2024-11-07 00:33:05,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 4134 transitions. [2024-11-07 00:33:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 00:33:05,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:05,856 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:05,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 00:33:05,856 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:05,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1846302245, now seen corresponding path program 1 times [2024-11-07 00:33:05,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:05,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095557242] [2024-11-07 00:33:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:05,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095557242] [2024-11-07 00:33:05,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095557242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:05,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:05,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:33:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958738892] [2024-11-07 00:33:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:05,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:33:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:33:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:33:05,989 INFO L87 Difference]: Start difference. First operand 2898 states and 4134 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:06,256 INFO L93 Difference]: Finished difference Result 10572 states and 15264 transitions. [2024-11-07 00:33:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:33:06,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-07 00:33:06,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:06,282 INFO L225 Difference]: With dead ends: 10572 [2024-11-07 00:33:06,282 INFO L226 Difference]: Without dead ends: 7785 [2024-11-07 00:33:06,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:33:06,292 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 926 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:06,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 340 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:33:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2024-11-07 00:33:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 6183. [2024-11-07 00:33:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6183 states, 6182 states have (on average 1.431252021999353) internal successors, (8848), 6182 states have internal predecessors, (8848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 8848 transitions. [2024-11-07 00:33:06,399 INFO L78 Accepts]: Start accepts. Automaton has 6183 states and 8848 transitions. Word has length 120 [2024-11-07 00:33:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:06,399 INFO L471 AbstractCegarLoop]: Abstraction has 6183 states and 8848 transitions. [2024-11-07 00:33:06,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:06,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states and 8848 transitions. [2024-11-07 00:33:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 00:33:06,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:06,400 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:06,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 00:33:06,401 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:06,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1365249350, now seen corresponding path program 1 times [2024-11-07 00:33:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984399308] [2024-11-07 00:33:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:06,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984399308] [2024-11-07 00:33:06,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984399308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:06,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:06,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:33:06,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340774586] [2024-11-07 00:33:06,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:06,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:33:06,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:06,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:33:06,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:33:06,572 INFO L87 Difference]: Start difference. First operand 6183 states and 8848 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:06,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:06,847 INFO L93 Difference]: Finished difference Result 20527 states and 29506 transitions. [2024-11-07 00:33:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:33:06,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-07 00:33:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:06,879 INFO L225 Difference]: With dead ends: 20527 [2024-11-07 00:33:06,880 INFO L226 Difference]: Without dead ends: 14455 [2024-11-07 00:33:06,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:33:06,893 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 841 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:06,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 338 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:33:06,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14455 states. [2024-11-07 00:33:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14455 to 13253. [2024-11-07 00:33:07,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13253 states, 13252 states have (on average 1.4319348022939933) internal successors, (18976), 13252 states have internal predecessors, (18976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:07,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13253 states to 13253 states and 18976 transitions. [2024-11-07 00:33:07,092 INFO L78 Accepts]: Start accepts. Automaton has 13253 states and 18976 transitions. Word has length 120 [2024-11-07 00:33:07,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:07,092 INFO L471 AbstractCegarLoop]: Abstraction has 13253 states and 18976 transitions. [2024-11-07 00:33:07,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:07,092 INFO L276 IsEmpty]: Start isEmpty. Operand 13253 states and 18976 transitions. [2024-11-07 00:33:07,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 00:33:07,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:07,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:07,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 00:33:07,094 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:07,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:07,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1045571118, now seen corresponding path program 1 times [2024-11-07 00:33:07,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:07,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220736606] [2024-11-07 00:33:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:07,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:07,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220736606] [2024-11-07 00:33:07,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220736606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:07,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:07,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:33:07,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677312130] [2024-11-07 00:33:07,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:07,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:33:07,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:07,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:33:07,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:33:07,241 INFO L87 Difference]: Start difference. First operand 13253 states and 18976 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:07,659 INFO L93 Difference]: Finished difference Result 49537 states and 71490 transitions. [2024-11-07 00:33:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:33:07,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-07 00:33:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:07,744 INFO L225 Difference]: With dead ends: 49537 [2024-11-07 00:33:07,744 INFO L226 Difference]: Without dead ends: 36395 [2024-11-07 00:33:07,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:33:07,771 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 1011 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:07,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 342 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:33:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36395 states. [2024-11-07 00:33:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36395 to 28393. [2024-11-07 00:33:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28393 states, 28392 states have (on average 1.4311073541842774) internal successors, (40632), 28392 states have internal predecessors, (40632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28393 states to 28393 states and 40632 transitions. [2024-11-07 00:33:08,333 INFO L78 Accepts]: Start accepts. Automaton has 28393 states and 40632 transitions. Word has length 120 [2024-11-07 00:33:08,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:08,333 INFO L471 AbstractCegarLoop]: Abstraction has 28393 states and 40632 transitions. [2024-11-07 00:33:08,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 28393 states and 40632 transitions. [2024-11-07 00:33:08,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 00:33:08,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:08,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:08,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 00:33:08,336 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:08,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:08,336 INFO L85 PathProgramCache]: Analyzing trace with hash 920112344, now seen corresponding path program 1 times [2024-11-07 00:33:08,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:08,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758141620] [2024-11-07 00:33:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:08,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:08,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:08,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758141620] [2024-11-07 00:33:08,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758141620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:08,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:08,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:33:08,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310577251] [2024-11-07 00:33:08,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:08,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:33:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:08,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:33:08,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:33:08,503 INFO L87 Difference]: Start difference. First operand 28393 states and 40632 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:08,980 INFO L93 Difference]: Finished difference Result 64360 states and 92288 transitions. [2024-11-07 00:33:08,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:33:08,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-07 00:33:08,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:09,063 INFO L225 Difference]: With dead ends: 64360 [2024-11-07 00:33:09,064 INFO L226 Difference]: Without dead ends: 36078 [2024-11-07 00:33:09,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:33:09,098 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 895 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:09,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 390 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:33:09,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36078 states. [2024-11-07 00:33:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36078 to 30274. [2024-11-07 00:33:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30274 states, 30273 states have (on average 1.425032206917055) internal successors, (43140), 30273 states have internal predecessors, (43140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30274 states to 30274 states and 43140 transitions. [2024-11-07 00:33:09,644 INFO L78 Accepts]: Start accepts. Automaton has 30274 states and 43140 transitions. Word has length 120 [2024-11-07 00:33:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:09,645 INFO L471 AbstractCegarLoop]: Abstraction has 30274 states and 43140 transitions. [2024-11-07 00:33:09,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 30274 states and 43140 transitions. [2024-11-07 00:33:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-07 00:33:09,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:09,654 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:09,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 00:33:09,654 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:09,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash -57380458, now seen corresponding path program 1 times [2024-11-07 00:33:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160600179] [2024-11-07 00:33:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:09,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-07 00:33:09,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:09,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160600179] [2024-11-07 00:33:09,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160600179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:09,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:09,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:09,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504514911] [2024-11-07 00:33:09,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:09,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:09,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:09,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:09,774 INFO L87 Difference]: Start difference. First operand 30274 states and 43140 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 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 00:33:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:09,937 INFO L93 Difference]: Finished difference Result 58318 states and 82934 transitions. [2024-11-07 00:33:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:09,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 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 147 [2024-11-07 00:33:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:10,004 INFO L225 Difference]: With dead ends: 58318 [2024-11-07 00:33:10,005 INFO L226 Difference]: Without dead ends: 28161 [2024-11-07 00:33:10,043 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 00:33:10,046 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 74 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:10,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 382 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:33:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28161 states. [2024-11-07 00:33:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28161 to 27529. [2024-11-07 00:33:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27529 states, 27528 states have (on average 1.4123801220575414) internal successors, (38880), 27528 states have internal predecessors, (38880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27529 states to 27529 states and 38880 transitions. [2024-11-07 00:33:10,543 INFO L78 Accepts]: Start accepts. Automaton has 27529 states and 38880 transitions. Word has length 147 [2024-11-07 00:33:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:10,543 INFO L471 AbstractCegarLoop]: Abstraction has 27529 states and 38880 transitions. [2024-11-07 00:33:10,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 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 00:33:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 27529 states and 38880 transitions. [2024-11-07 00:33:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-07 00:33:10,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:10,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:10,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 00:33:10,552 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:10,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1691562909, now seen corresponding path program 1 times [2024-11-07 00:33:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:10,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919784699] [2024-11-07 00:33:10,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:10,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-07 00:33:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:10,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919784699] [2024-11-07 00:33:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919784699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658126906] [2024-11-07 00:33:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:10,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:10,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:10,774 INFO L87 Difference]: Start difference. First operand 27529 states and 38880 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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 00:33:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:10,907 INFO L93 Difference]: Finished difference Result 52849 states and 74442 transitions. [2024-11-07 00:33:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:10,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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 148 [2024-11-07 00:33:10,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:10,965 INFO L225 Difference]: With dead ends: 52849 [2024-11-07 00:33:10,965 INFO L226 Difference]: Without dead ends: 25431 [2024-11-07 00:33:10,989 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 00:33:10,990 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 68 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:10,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:33:11,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2024-11-07 00:33:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 24829. [2024-11-07 00:33:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24829 states, 24828 states have (on average 1.3968100531657806) internal successors, (34680), 24828 states have internal predecessors, (34680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24829 states to 24829 states and 34680 transitions. [2024-11-07 00:33:11,423 INFO L78 Accepts]: Start accepts. Automaton has 24829 states and 34680 transitions. Word has length 148 [2024-11-07 00:33:11,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:11,423 INFO L471 AbstractCegarLoop]: Abstraction has 24829 states and 34680 transitions. [2024-11-07 00:33:11,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 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 00:33:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 24829 states and 34680 transitions. [2024-11-07 00:33:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-07 00:33:11,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:11,430 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:11,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-07 00:33:11,430 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:11,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1473875707, now seen corresponding path program 1 times [2024-11-07 00:33:11,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:11,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184320300] [2024-11-07 00:33:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:11,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 00:33:11,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:11,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184320300] [2024-11-07 00:33:11,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184320300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:11,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:11,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:11,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425860945] [2024-11-07 00:33:11,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:11,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:11,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:11,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:11,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:11,603 INFO L87 Difference]: Start difference. First operand 24829 states and 34680 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 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 00:33:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:11,748 INFO L93 Difference]: Finished difference Result 47449 states and 66042 transitions. [2024-11-07 00:33:11,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:11,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 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 149 [2024-11-07 00:33:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:11,796 INFO L225 Difference]: With dead ends: 47449 [2024-11-07 00:33:11,797 INFO L226 Difference]: Without dead ends: 22731 [2024-11-07 00:33:11,821 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 00:33:11,821 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 61 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:11,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 384 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:33:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22731 states. [2024-11-07 00:33:12,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22731 to 22129. [2024-11-07 00:33:12,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22129 states, 22128 states have (on average 1.3774403470715835) internal successors, (30480), 22128 states have internal predecessors, (30480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22129 states to 22129 states and 30480 transitions. [2024-11-07 00:33:12,181 INFO L78 Accepts]: Start accepts. Automaton has 22129 states and 30480 transitions. Word has length 149 [2024-11-07 00:33:12,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:12,181 INFO L471 AbstractCegarLoop]: Abstraction has 22129 states and 30480 transitions. [2024-11-07 00:33:12,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 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 00:33:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 22129 states and 30480 transitions. [2024-11-07 00:33:12,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-07 00:33:12,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:12,187 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:12,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 00:33:12,187 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:12,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:12,187 INFO L85 PathProgramCache]: Analyzing trace with hash -329011218, now seen corresponding path program 1 times [2024-11-07 00:33:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:12,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124516427] [2024-11-07 00:33:12,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:12,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 00:33:12,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:12,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124516427] [2024-11-07 00:33:12,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124516427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:12,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:12,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:12,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850640006] [2024-11-07 00:33:12,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:12,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:12,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:12,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:12,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:12,403 INFO L87 Difference]: Start difference. First operand 22129 states and 30480 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:12,548 INFO L93 Difference]: Finished difference Result 63965 states and 87602 transitions. [2024-11-07 00:33:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:12,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 150 [2024-11-07 00:33:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:12,608 INFO L225 Difference]: With dead ends: 63965 [2024-11-07 00:33:12,608 INFO L226 Difference]: Without dead ends: 41947 [2024-11-07 00:33:12,634 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 00:33:12,635 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 54 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:12,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:33:12,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41947 states. [2024-11-07 00:33:13,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41947 to 39145. [2024-11-07 00:33:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39145 states, 39144 states have (on average 1.3601062742693644) internal successors, (53240), 39144 states have internal predecessors, (53240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39145 states to 39145 states and 53240 transitions. [2024-11-07 00:33:13,149 INFO L78 Accepts]: Start accepts. Automaton has 39145 states and 53240 transitions. Word has length 150 [2024-11-07 00:33:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:13,149 INFO L471 AbstractCegarLoop]: Abstraction has 39145 states and 53240 transitions. [2024-11-07 00:33:13,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 39145 states and 53240 transitions. [2024-11-07 00:33:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:33:13,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:13,155 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:13,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-07 00:33:13,155 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:13,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:13,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1677295096, now seen corresponding path program 1 times [2024-11-07 00:33:13,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:13,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216973784] [2024-11-07 00:33:13,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:13,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:13,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:13,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216973784] [2024-11-07 00:33:13,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216973784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:33:13,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767406227] [2024-11-07 00:33:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:13,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:33:13,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:33:13,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:33:13,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 00:33:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:14,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 00:33:14,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:33:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:15,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 00:33:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:16,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767406227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 00:33:16,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 00:33:16,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 26 [2024-11-07 00:33:16,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157914628] [2024-11-07 00:33:16,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 00:33:16,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 00:33:16,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:16,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 00:33:16,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2024-11-07 00:33:16,590 INFO L87 Difference]: Start difference. First operand 39145 states and 53240 transitions. Second operand has 27 states, 27 states have (on average 15.703703703703704) internal successors, (424), 26 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:22,678 INFO L93 Difference]: Finished difference Result 350345 states and 472749 transitions. [2024-11-07 00:33:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-07 00:33:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 15.703703703703704) internal successors, (424), 26 states have internal predecessors, (424), 0 states have call successors, (0), 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 151 [2024-11-07 00:33:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:23,184 INFO L225 Difference]: With dead ends: 350345 [2024-11-07 00:33:23,184 INFO L226 Difference]: Without dead ends: 311311 [2024-11-07 00:33:23,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4695 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2630, Invalid=13372, Unknown=0, NotChecked=0, Total=16002 [2024-11-07 00:33:23,267 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 2733 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 3994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:23,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 2418 Invalid, 3994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 00:33:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311311 states. [2024-11-07 00:33:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311311 to 193875. [2024-11-07 00:33:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193875 states, 193874 states have (on average 1.3524144547489607) internal successors, (262198), 193874 states have internal predecessors, (262198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:27,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193875 states to 193875 states and 262198 transitions. [2024-11-07 00:33:27,065 INFO L78 Accepts]: Start accepts. Automaton has 193875 states and 262198 transitions. Word has length 151 [2024-11-07 00:33:27,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:27,065 INFO L471 AbstractCegarLoop]: Abstraction has 193875 states and 262198 transitions. [2024-11-07 00:33:27,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 15.703703703703704) internal successors, (424), 26 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 193875 states and 262198 transitions. [2024-11-07 00:33:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:33:27,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:27,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:27,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 00:33:27,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-07 00:33:27,278 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:27,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:27,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1459257078, now seen corresponding path program 1 times [2024-11-07 00:33:27,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:27,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421872073] [2024-11-07 00:33:27,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:27,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:27,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:27,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421872073] [2024-11-07 00:33:27,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421872073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:33:27,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118974134] [2024-11-07 00:33:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:27,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:33:27,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:33:27,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:33:27,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 00:33:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:28,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-07 00:33:28,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:33:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:28,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 00:33:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:30,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118974134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 00:33:30,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 00:33:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 12] total 29 [2024-11-07 00:33:30,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39683469] [2024-11-07 00:33:30,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 00:33:30,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-07 00:33:30,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:30,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-07 00:33:30,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2024-11-07 00:33:30,505 INFO L87 Difference]: Start difference. First operand 193875 states and 262198 transitions. Second operand has 30 states, 30 states have (on average 11.733333333333333) internal successors, (352), 29 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:39,469 INFO L93 Difference]: Finished difference Result 1381071 states and 1854416 transitions. [2024-11-07 00:33:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-11-07 00:33:39,470 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.733333333333333) internal successors, (352), 29 states have internal predecessors, (352), 0 states have call successors, (0), 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 151 [2024-11-07 00:33:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:42,001 INFO L225 Difference]: With dead ends: 1381071 [2024-11-07 00:33:42,002 INFO L226 Difference]: Without dead ends: 1187347