./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.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/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.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', 'a44e961521da9b8f4535724e185f402d94bec27d495ab6df10e2b3c1ffa4513a'] 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/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.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 a44e961521da9b8f4535724e185f402d94bec27d495ab6df10e2b3c1ffa4513a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:05:55,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:05:56,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:05:56,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:05:56,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:05:56,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:05:56,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:05:56,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:05:56,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:05:56,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:05:56,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:05:56,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:05:56,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:05:56,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:05:56,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:05:56,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:05:56,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:05:56,137 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 -> a44e961521da9b8f4535724e185f402d94bec27d495ab6df10e2b3c1ffa4513a [2024-11-07 00:05:56,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:05:56,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:05:56,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:05:56,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:05:56,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:05:56,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2024-11-07 00:05:58,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:05:58,640 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:05:58,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2024-11-07 00:05:58,652 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/706754005/906b10e3faa24bafa226b3974d31e05b/FLAG56f79755a [2024-11-07 00:05:58,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/706754005/906b10e3faa24bafa226b3974d31e05b [2024-11-07 00:05:58,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:05:58,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:05:58,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:05:58,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:05:58,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:05:58,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:05:58" (1/1) ... [2024-11-07 00:05:58,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e374ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:58, skipping insertion in model container [2024-11-07 00:05:58,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:05:58" (1/1) ... [2024-11-07 00:05:58,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:05:58,902 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/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c[16936,16949] [2024-11-07 00:05:58,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:05:58,915 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:05:58,979 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/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c[16936,16949] [2024-11-07 00:05:58,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:05:59,000 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:05:59,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59 WrapperNode [2024-11-07 00:05:59,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:05:59,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:05:59,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:05:59,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:05:59,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,057 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 455 [2024-11-07 00:05:59,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:05:59,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:05:59,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:05:59,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:05:59,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,084 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 00:05:59,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:05:59,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:05:59,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:05:59,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:05:59,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (1/1) ... [2024-11-07 00:05:59,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:05:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:05:59,174 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 00:05:59,183 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 00:05:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:05:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:05:59,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:05:59,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:05:59,356 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:05:59,358 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:05:59,988 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-07 00:05:59,989 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:06:00,000 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:06:00,001 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 00:06:00,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:06:00 BoogieIcfgContainer [2024-11-07 00:06:00,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:06:00,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:06:00,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:06:00,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:06:00,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:05:58" (1/3) ... [2024-11-07 00:06:00,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9ca9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:06:00, skipping insertion in model container [2024-11-07 00:06:00,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:05:59" (2/3) ... [2024-11-07 00:06:00,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9ca9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:06:00, skipping insertion in model container [2024-11-07 00:06:00,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:06:00" (3/3) ... [2024-11-07 00:06:00,012 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c [2024-11-07 00:06:00,026 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:06:00,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:06:00,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:06:00,086 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;@38075f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:06:00,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:06:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 119 states have (on average 1.7647058823529411) internal successors, (210), 120 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-07 00:06:00,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:00,104 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] [2024-11-07 00:06:00,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:00,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 89596463, now seen corresponding path program 1 times [2024-11-07 00:06:00,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:00,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088271028] [2024-11-07 00:06:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:00,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:00,637 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 00:06:00,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:00,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088271028] [2024-11-07 00:06:00,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088271028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:00,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:00,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:06:00,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391375154] [2024-11-07 00:06:00,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:00,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:06:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:00,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:06:00,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:06:00,665 INFO L87 Difference]: Start difference. First operand has 121 states, 119 states have (on average 1.7647058823529411) internal successors, (210), 120 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:00,787 INFO L93 Difference]: Finished difference Result 199 states and 336 transitions. [2024-11-07 00:06:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:06:00,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-07 00:06:00,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:00,802 INFO L225 Difference]: With dead ends: 199 [2024-11-07 00:06:00,802 INFO L226 Difference]: Without dead ends: 117 [2024-11-07 00:06:00,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 00:06:00,810 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:00,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 774 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-07 00:06:00,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-07 00:06:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.396551724137931) internal successors, (162), 116 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 162 transitions. [2024-11-07 00:06:00,846 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 162 transitions. Word has length 37 [2024-11-07 00:06:00,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:00,847 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 162 transitions. [2024-11-07 00:06:00,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 162 transitions. [2024-11-07 00:06:00,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 00:06:00,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:00,849 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] [2024-11-07 00:06:00,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:06:00,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:00,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:00,850 INFO L85 PathProgramCache]: Analyzing trace with hash 446628089, now seen corresponding path program 1 times [2024-11-07 00:06:00,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:00,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375917808] [2024-11-07 00:06:00,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:00,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:00,980 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 00:06:00,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:00,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375917808] [2024-11-07 00:06:00,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375917808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:00,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:00,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:00,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900737437] [2024-11-07 00:06:00,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:00,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:00,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:01,001 INFO L87 Difference]: Start difference. First operand 117 states and 162 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:01,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:01,032 INFO L93 Difference]: Finished difference Result 249 states and 378 transitions. [2024-11-07 00:06:01,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:01,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-07 00:06:01,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:01,034 INFO L225 Difference]: With dead ends: 249 [2024-11-07 00:06:01,034 INFO L226 Difference]: Without dead ends: 179 [2024-11-07 00:06:01,035 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 00:06:01,035 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 91 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:01,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 332 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-07 00:06:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2024-11-07 00:06:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 176 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 261 transitions. [2024-11-07 00:06:01,048 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 261 transitions. Word has length 77 [2024-11-07 00:06:01,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:01,049 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 261 transitions. [2024-11-07 00:06:01,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 261 transitions. [2024-11-07 00:06:01,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 00:06:01,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:01,051 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] [2024-11-07 00:06:01,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:06:01,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:01,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1625058746, now seen corresponding path program 1 times [2024-11-07 00:06:01,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:01,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64991016] [2024-11-07 00:06:01,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:01,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:01,317 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 00:06:01,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64991016] [2024-11-07 00:06:01,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64991016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:01,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:01,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235529706] [2024-11-07 00:06:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:01,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:01,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:01,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:01,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:01,320 INFO L87 Difference]: Start difference. First operand 177 states and 261 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:01,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:01,541 INFO L93 Difference]: Finished difference Result 1087 states and 1759 transitions. [2024-11-07 00:06:01,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:01,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-07 00:06:01,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:01,550 INFO L225 Difference]: With dead ends: 1087 [2024-11-07 00:06:01,554 INFO L226 Difference]: Without dead ends: 957 [2024-11-07 00:06:01,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:01,556 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 2030 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:01,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 1179 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:01,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-07 00:06:01,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 305. [2024-11-07 00:06:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.5460526315789473) internal successors, (470), 304 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 470 transitions. [2024-11-07 00:06:01,607 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 470 transitions. Word has length 77 [2024-11-07 00:06:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:01,607 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 470 transitions. [2024-11-07 00:06:01,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 470 transitions. [2024-11-07 00:06:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 00:06:01,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:01,613 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 00:06:01,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:06:01,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:01,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:01,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1546109612, now seen corresponding path program 1 times [2024-11-07 00:06:01,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:01,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544750643] [2024-11-07 00:06:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:01,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:02,134 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 00:06:02,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:02,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544750643] [2024-11-07 00:06:02,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544750643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:02,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:02,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:06:02,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536310530] [2024-11-07 00:06:02,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:02,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:06:02,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:02,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:06:02,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:06:02,136 INFO L87 Difference]: Start difference. First operand 305 states and 470 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 00:06:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:02,211 INFO L93 Difference]: Finished difference Result 319 states and 487 transitions. [2024-11-07 00:06:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:06:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 00:06:02,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:02,213 INFO L225 Difference]: With dead ends: 319 [2024-11-07 00:06:02,213 INFO L226 Difference]: Without dead ends: 317 [2024-11-07 00:06:02,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 00:06:02,217 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:02,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 628 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-07 00:06:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-07 00:06:02,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.5253164556962024) internal successors, (482), 316 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 482 transitions. [2024-11-07 00:06:02,242 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 482 transitions. Word has length 78 [2024-11-07 00:06:02,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:02,242 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 482 transitions. [2024-11-07 00:06:02,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 00:06:02,242 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 482 transitions. [2024-11-07 00:06:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 00:06:02,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:02,245 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 00:06:02,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:06:02,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:02,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash -632178990, now seen corresponding path program 1 times [2024-11-07 00:06:02,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:02,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271499970] [2024-11-07 00:06:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:02,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:02,344 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 00:06:02,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:02,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271499970] [2024-11-07 00:06:02,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271499970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:02,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:02,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683979517] [2024-11-07 00:06:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:02,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:02,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:02,346 INFO L87 Difference]: Start difference. First operand 317 states and 482 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 00:06:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:02,388 INFO L93 Difference]: Finished difference Result 827 states and 1302 transitions. [2024-11-07 00:06:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:02,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 00:06:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:02,391 INFO L225 Difference]: With dead ends: 827 [2024-11-07 00:06:02,391 INFO L226 Difference]: Without dead ends: 557 [2024-11-07 00:06:02,394 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 00:06:02,395 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 76 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:02,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 274 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-07 00:06:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-07 00:06:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 554 states have (on average 1.555956678700361) internal successors, (862), 554 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 862 transitions. [2024-11-07 00:06:02,417 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 862 transitions. Word has length 79 [2024-11-07 00:06:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:02,418 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 862 transitions. [2024-11-07 00:06:02,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 00:06:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 862 transitions. [2024-11-07 00:06:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 00:06:02,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:02,418 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 00:06:02,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:06:02,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:02,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1939222481, now seen corresponding path program 1 times [2024-11-07 00:06:02,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:02,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947640416] [2024-11-07 00:06:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:02,495 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 00:06:02,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:02,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947640416] [2024-11-07 00:06:02,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947640416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:02,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:02,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:02,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759667514] [2024-11-07 00:06:02,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:02,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:02,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:02,497 INFO L87 Difference]: Start difference. First operand 555 states and 862 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 00:06:02,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:02,524 INFO L93 Difference]: Finished difference Result 1065 states and 1679 transitions. [2024-11-07 00:06:02,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:02,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 00:06:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:02,529 INFO L225 Difference]: With dead ends: 1065 [2024-11-07 00:06:02,529 INFO L226 Difference]: Without dead ends: 795 [2024-11-07 00:06:02,531 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 00:06:02,532 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 103 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:02,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 368 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:02,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-11-07 00:06:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 793. [2024-11-07 00:06:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 792 states have (on average 1.5631313131313131) internal successors, (1238), 792 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:02,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1238 transitions. [2024-11-07 00:06:02,566 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1238 transitions. Word has length 79 [2024-11-07 00:06:02,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:02,566 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1238 transitions. [2024-11-07 00:06:02,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 00:06:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1238 transitions. [2024-11-07 00:06:02,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:06:02,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:02,577 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 00:06:02,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:06:02,578 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:02,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:02,578 INFO L85 PathProgramCache]: Analyzing trace with hash 843177357, now seen corresponding path program 1 times [2024-11-07 00:06:02,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:02,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611226367] [2024-11-07 00:06:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:02,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:02,649 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 00:06:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611226367] [2024-11-07 00:06:02,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611226367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:02,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:02,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845510303] [2024-11-07 00:06:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:02,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:02,654 INFO L87 Difference]: Start difference. First operand 793 states and 1238 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:02,692 INFO L93 Difference]: Finished difference Result 2185 states and 3448 transitions. [2024-11-07 00:06:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:02,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:02,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:02,698 INFO L225 Difference]: With dead ends: 2185 [2024-11-07 00:06:02,698 INFO L226 Difference]: Without dead ends: 1441 [2024-11-07 00:06:02,699 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 00:06:02,700 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 83 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:02,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 326 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:02,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-07 00:06:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1439. [2024-11-07 00:06:02,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1438 states have (on average 1.5618915159944367) internal successors, (2246), 1438 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2246 transitions. [2024-11-07 00:06:02,743 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2246 transitions. Word has length 80 [2024-11-07 00:06:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:02,743 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 2246 transitions. [2024-11-07 00:06:02,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2246 transitions. [2024-11-07 00:06:02,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:06:02,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:02,744 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 00:06:02,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:06:02,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:02,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash -957511571, now seen corresponding path program 1 times [2024-11-07 00:06:02,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:02,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058164676] [2024-11-07 00:06:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:02,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:02,804 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 00:06:02,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:02,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058164676] [2024-11-07 00:06:02,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058164676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:02,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:02,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:02,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465439575] [2024-11-07 00:06:02,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:02,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:02,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:02,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:02,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:02,806 INFO L87 Difference]: Start difference. First operand 1439 states and 2246 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:02,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:02,868 INFO L93 Difference]: Finished difference Result 4027 states and 6304 transitions. [2024-11-07 00:06:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:02,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:02,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:02,876 INFO L225 Difference]: With dead ends: 4027 [2024-11-07 00:06:02,877 INFO L226 Difference]: Without dead ends: 2637 [2024-11-07 00:06:02,878 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 00:06:02,879 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 87 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:02,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 339 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2024-11-07 00:06:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2635. [2024-11-07 00:06:02,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2634 states have (on average 1.5497342444950646) internal successors, (4082), 2634 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 4082 transitions. [2024-11-07 00:06:02,942 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 4082 transitions. Word has length 80 [2024-11-07 00:06:02,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:02,942 INFO L471 AbstractCegarLoop]: Abstraction has 2635 states and 4082 transitions. [2024-11-07 00:06:02,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:02,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 4082 transitions. [2024-11-07 00:06:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:06:02,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:02,943 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 00:06:02,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:06:02,944 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:02,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1565232685, now seen corresponding path program 1 times [2024-11-07 00:06:02,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:02,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410243754] [2024-11-07 00:06:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:02,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:03,001 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 00:06:03,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:03,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410243754] [2024-11-07 00:06:03,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410243754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:03,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:03,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:03,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161013613] [2024-11-07 00:06:03,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:03,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:03,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:03,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:03,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:03,003 INFO L87 Difference]: Start difference. First operand 2635 states and 4082 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:03,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:03,091 INFO L93 Difference]: Finished difference Result 7423 states and 11476 transitions. [2024-11-07 00:06:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:03,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:03,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:03,109 INFO L225 Difference]: With dead ends: 7423 [2024-11-07 00:06:03,109 INFO L226 Difference]: Without dead ends: 4837 [2024-11-07 00:06:03,112 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 00:06:03,113 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 95 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:03,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 355 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2024-11-07 00:06:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4835. [2024-11-07 00:06:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4835 states, 4834 states have (on average 1.5295821266032272) internal successors, (7394), 4834 states have internal predecessors, (7394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 7394 transitions. [2024-11-07 00:06:03,251 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 7394 transitions. Word has length 80 [2024-11-07 00:06:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:03,252 INFO L471 AbstractCegarLoop]: Abstraction has 4835 states and 7394 transitions. [2024-11-07 00:06:03,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 7394 transitions. [2024-11-07 00:06:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:06:03,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:03,253 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 00:06:03,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:06:03,253 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:03,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash -26351347, now seen corresponding path program 1 times [2024-11-07 00:06:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:03,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042499197] [2024-11-07 00:06:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:03,332 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 00:06:03,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:03,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042499197] [2024-11-07 00:06:03,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042499197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:03,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:03,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:03,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371502647] [2024-11-07 00:06:03,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:03,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:03,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:03,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:03,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:03,334 INFO L87 Difference]: Start difference. First operand 4835 states and 7394 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:03,448 INFO L93 Difference]: Finished difference Result 13639 states and 20740 transitions. [2024-11-07 00:06:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:03,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:03,478 INFO L225 Difference]: With dead ends: 13639 [2024-11-07 00:06:03,478 INFO L226 Difference]: Without dead ends: 8853 [2024-11-07 00:06:03,486 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 00:06:03,487 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 99 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:03,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 368 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2024-11-07 00:06:03,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 8851. [2024-11-07 00:06:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 8850 states have (on average 1.5025988700564972) internal successors, (13298), 8850 states have internal predecessors, (13298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 13298 transitions. [2024-11-07 00:06:03,737 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 13298 transitions. Word has length 80 [2024-11-07 00:06:03,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:03,737 INFO L471 AbstractCegarLoop]: Abstraction has 8851 states and 13298 transitions. [2024-11-07 00:06:03,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 00:06:03,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 13298 transitions. [2024-11-07 00:06:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-07 00:06:03,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:03,745 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:03,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:06:03,745 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:03,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1785241918, now seen corresponding path program 1 times [2024-11-07 00:06:03,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:03,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230894469] [2024-11-07 00:06:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:03,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:03,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:03,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230894469] [2024-11-07 00:06:03,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230894469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:03,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:03,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:03,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44835043] [2024-11-07 00:06:03,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:03,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:03,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:03,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:03,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:03,904 INFO L87 Difference]: Start difference. First operand 8851 states and 13298 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:04,022 INFO L93 Difference]: Finished difference Result 17655 states and 26548 transitions. [2024-11-07 00:06:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:04,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-07 00:06:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:04,047 INFO L225 Difference]: With dead ends: 17655 [2024-11-07 00:06:04,048 INFO L226 Difference]: Without dead ends: 8853 [2024-11-07 00:06:04,107 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 00:06:04,108 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 80 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:04,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 362 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:04,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2024-11-07 00:06:04,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 8851. [2024-11-07 00:06:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 8850 states have (on average 1.4917514124293785) internal successors, (13202), 8850 states have internal predecessors, (13202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 13202 transitions. [2024-11-07 00:06:04,340 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 13202 transitions. Word has length 110 [2024-11-07 00:06:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:04,340 INFO L471 AbstractCegarLoop]: Abstraction has 8851 states and 13202 transitions. [2024-11-07 00:06:04,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,341 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 13202 transitions. [2024-11-07 00:06:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-07 00:06:04,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:04,344 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:04,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:06:04,345 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:04,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:04,345 INFO L85 PathProgramCache]: Analyzing trace with hash 2076585793, now seen corresponding path program 1 times [2024-11-07 00:06:04,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:04,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092564125] [2024-11-07 00:06:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:04,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:04,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092564125] [2024-11-07 00:06:04,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092564125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:04,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:04,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:04,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131686755] [2024-11-07 00:06:04,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:04,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:04,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:04,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:04,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:04,478 INFO L87 Difference]: Start difference. First operand 8851 states and 13202 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:04,570 INFO L93 Difference]: Finished difference Result 13255 states and 19780 transitions. [2024-11-07 00:06:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:04,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-07 00:06:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:04,581 INFO L225 Difference]: With dead ends: 13255 [2024-11-07 00:06:04,581 INFO L226 Difference]: Without dead ends: 4453 [2024-11-07 00:06:04,591 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 00:06:04,591 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 74 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:04,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 343 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4453 states. [2024-11-07 00:06:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4453 to 4451. [2024-11-07 00:06:04,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4451 states, 4450 states have (on average 1.4782022471910112) internal successors, (6578), 4450 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4451 states to 4451 states and 6578 transitions. [2024-11-07 00:06:04,769 INFO L78 Accepts]: Start accepts. Automaton has 4451 states and 6578 transitions. Word has length 110 [2024-11-07 00:06:04,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:04,769 INFO L471 AbstractCegarLoop]: Abstraction has 4451 states and 6578 transitions. [2024-11-07 00:06:04,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4451 states and 6578 transitions. [2024-11-07 00:06:04,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-07 00:06:04,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:04,771 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:06:04,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:06:04,772 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:04,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:04,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1799940288, now seen corresponding path program 1 times [2024-11-07 00:06:04,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:04,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232528616] [2024-11-07 00:06:04,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:04,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:04,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:04,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232528616] [2024-11-07 00:06:04,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232528616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:04,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:04,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:04,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219899927] [2024-11-07 00:06:04,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:04,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:04,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:04,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:04,879 INFO L87 Difference]: Start difference. First operand 4451 states and 6578 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:04,927 INFO L93 Difference]: Finished difference Result 6655 states and 9844 transitions. [2024-11-07 00:06:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-07 00:06:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:04,932 INFO L225 Difference]: With dead ends: 6655 [2024-11-07 00:06:04,932 INFO L226 Difference]: Without dead ends: 2253 [2024-11-07 00:06:04,936 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 00:06:04,940 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:04,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 321 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:04,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2024-11-07 00:06:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2251. [2024-11-07 00:06:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2251 states, 2250 states have (on average 1.4622222222222223) internal successors, (3290), 2250 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2251 states to 2251 states and 3290 transitions. [2024-11-07 00:06:04,987 INFO L78 Accepts]: Start accepts. Automaton has 2251 states and 3290 transitions. Word has length 110 [2024-11-07 00:06:04,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:04,987 INFO L471 AbstractCegarLoop]: Abstraction has 2251 states and 3290 transitions. [2024-11-07 00:06:04,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2251 states and 3290 transitions. [2024-11-07 00:06:04,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-07 00:06:04,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:04,989 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:04,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:06:04,989 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:04,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:04,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1010003519, now seen corresponding path program 1 times [2024-11-07 00:06:04,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:04,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403058350] [2024-11-07 00:06:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:04,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:05,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:05,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403058350] [2024-11-07 00:06:05,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403058350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:05,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:05,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:05,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341301895] [2024-11-07 00:06:05,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:05,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:05,100 INFO L87 Difference]: Start difference. First operand 2251 states and 3290 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:05,130 INFO L93 Difference]: Finished difference Result 3355 states and 4912 transitions. [2024-11-07 00:06:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-07 00:06:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:05,133 INFO L225 Difference]: With dead ends: 3355 [2024-11-07 00:06:05,133 INFO L226 Difference]: Without dead ends: 1153 [2024-11-07 00:06:05,135 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 00:06:05,136 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 62 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:05,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 302 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-07 00:06:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1151. [2024-11-07 00:06:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 1.4417391304347826) internal successors, (1658), 1150 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:05,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1658 transitions. [2024-11-07 00:06:05,159 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1658 transitions. Word has length 110 [2024-11-07 00:06:05,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:05,180 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1658 transitions. [2024-11-07 00:06:05,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1658 transitions. [2024-11-07 00:06:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-07 00:06:05,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:05,182 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:05,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:06:05,182 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:05,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:05,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1396251838, now seen corresponding path program 1 times [2024-11-07 00:06:05,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:05,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759604428] [2024-11-07 00:06:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:05,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:06,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:06,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759604428] [2024-11-07 00:06:06,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759604428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:06:06,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081920139] [2024-11-07 00:06:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:06,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:06:06,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:06:06,354 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 00:06:06,355 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 00:06:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:06,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-07 00:06:06,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:06:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:07,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 00:06:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:07,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081920139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 00:06:07,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 00:06:07,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 8] total 23 [2024-11-07 00:06:07,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936047442] [2024-11-07 00:06:07,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 00:06:07,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 00:06:07,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:07,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 00:06:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-11-07 00:06:07,844 INFO L87 Difference]: Start difference. First operand 1151 states and 1658 transitions. Second operand has 23 states, 23 states have (on average 14.043478260869565) internal successors, (323), 23 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:18,224 INFO L93 Difference]: Finished difference Result 12499 states and 18010 transitions. [2024-11-07 00:06:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2024-11-07 00:06:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 14.043478260869565) internal successors, (323), 23 states have internal predecessors, (323), 0 states have call successors, (0), 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 110 [2024-11-07 00:06:18,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:18,266 INFO L225 Difference]: With dead ends: 12499 [2024-11-07 00:06:18,269 INFO L226 Difference]: Without dead ends: 11745 [2024-11-07 00:06:18,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14316 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=4337, Invalid=30819, Unknown=0, NotChecked=0, Total=35156 [2024-11-07 00:06:18,288 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 8781 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8781 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:18,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8781 Valid, 2773 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 2424 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 00:06:18,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11745 states. [2024-11-07 00:06:18,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11745 to 10039. [2024-11-07 00:06:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10039 states, 10038 states have (on average 1.4343494720063759) internal successors, (14398), 10038 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10039 states to 10039 states and 14398 transitions. [2024-11-07 00:06:18,547 INFO L78 Accepts]: Start accepts. Automaton has 10039 states and 14398 transitions. Word has length 110 [2024-11-07 00:06:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:18,547 INFO L471 AbstractCegarLoop]: Abstraction has 10039 states and 14398 transitions. [2024-11-07 00:06:18,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.043478260869565) internal successors, (323), 23 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 10039 states and 14398 transitions. [2024-11-07 00:06:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:06:18,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:18,549 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:18,566 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 00:06:18,754 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,SelfDestructingSolverStorable14 [2024-11-07 00:06:18,755 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:18,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1668141927, now seen corresponding path program 1 times [2024-11-07 00:06:18,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:18,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793733181] [2024-11-07 00:06:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:18,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 00:06:18,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:18,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793733181] [2024-11-07 00:06:18,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793733181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:18,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:18,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:18,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760464096] [2024-11-07 00:06:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:18,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:18,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:18,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:18,924 INFO L87 Difference]: Start difference. First operand 10039 states and 14398 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:19,399 INFO L93 Difference]: Finished difference Result 40423 states and 58302 transitions. [2024-11-07 00:06:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:19,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 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 111 [2024-11-07 00:06:19,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:19,472 INFO L225 Difference]: With dead ends: 40423 [2024-11-07 00:06:19,473 INFO L226 Difference]: Without dead ends: 35235 [2024-11-07 00:06:19,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:19,491 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 1259 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:19,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 1454 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:19,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35235 states. [2024-11-07 00:06:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35235 to 14979. [2024-11-07 00:06:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14979 states, 14978 states have (on average 1.4311657097075712) internal successors, (21436), 14978 states have internal predecessors, (21436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14979 states to 14979 states and 21436 transitions. [2024-11-07 00:06:20,116 INFO L78 Accepts]: Start accepts. Automaton has 14979 states and 21436 transitions. Word has length 111 [2024-11-07 00:06:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:20,117 INFO L471 AbstractCegarLoop]: Abstraction has 14979 states and 21436 transitions. [2024-11-07 00:06:20,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 14979 states and 21436 transitions. [2024-11-07 00:06:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:06:20,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:20,119 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:20,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:06:20,120 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:20,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash 12117595, now seen corresponding path program 1 times [2024-11-07 00:06:20,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:20,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975759945] [2024-11-07 00:06:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 00:06:20,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:20,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975759945] [2024-11-07 00:06:20,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975759945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:20,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:20,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:20,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049843493] [2024-11-07 00:06:20,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:20,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:20,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:20,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:20,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:20,282 INFO L87 Difference]: Start difference. First operand 14979 states and 21436 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:20,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:20,878 INFO L93 Difference]: Finished difference Result 45363 states and 65340 transitions. [2024-11-07 00:06:20,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:20,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 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 111 [2024-11-07 00:06:20,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:20,954 INFO L225 Difference]: With dead ends: 45363 [2024-11-07 00:06:20,954 INFO L226 Difference]: Without dead ends: 40175 [2024-11-07 00:06:20,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:20,969 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 1340 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:20,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 1313 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:20,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40175 states. [2024-11-07 00:06:21,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40175 to 19919. [2024-11-07 00:06:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19919 states, 19918 states have (on average 1.4295612009237875) internal successors, (28474), 19918 states have internal predecessors, (28474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19919 states to 19919 states and 28474 transitions. [2024-11-07 00:06:21,579 INFO L78 Accepts]: Start accepts. Automaton has 19919 states and 28474 transitions. Word has length 111 [2024-11-07 00:06:21,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:21,579 INFO L471 AbstractCegarLoop]: Abstraction has 19919 states and 28474 transitions. [2024-11-07 00:06:21,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 19919 states and 28474 transitions. [2024-11-07 00:06:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:06:21,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:21,581 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:21,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:06:21,582 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:21,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash -13184739, now seen corresponding path program 1 times [2024-11-07 00:06:21,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:21,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802698615] [2024-11-07 00:06:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:21,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 00:06:21,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:21,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802698615] [2024-11-07 00:06:21,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802698615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:21,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:21,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:21,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784052923] [2024-11-07 00:06:21,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:21,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:21,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:21,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:21,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:21,744 INFO L87 Difference]: Start difference. First operand 19919 states and 28474 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:22,643 INFO L93 Difference]: Finished difference Result 50303 states and 72378 transitions. [2024-11-07 00:06:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:22,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 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 111 [2024-11-07 00:06:22,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:22,729 INFO L225 Difference]: With dead ends: 50303 [2024-11-07 00:06:22,730 INFO L226 Difference]: Without dead ends: 45115 [2024-11-07 00:06:22,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:22,744 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 1424 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:22,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 1369 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45115 states. [2024-11-07 00:06:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45115 to 24859. [2024-11-07 00:06:23,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24859 states, 24858 states have (on average 1.428594416284496) internal successors, (35512), 24858 states have internal predecessors, (35512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24859 states to 24859 states and 35512 transitions. [2024-11-07 00:06:23,647 INFO L78 Accepts]: Start accepts. Automaton has 24859 states and 35512 transitions. Word has length 111 [2024-11-07 00:06:23,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:23,647 INFO L471 AbstractCegarLoop]: Abstraction has 24859 states and 35512 transitions. [2024-11-07 00:06:23,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 24859 states and 35512 transitions. [2024-11-07 00:06:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:06:23,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:23,650 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:23,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:06:23,650 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:23,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2102160607, now seen corresponding path program 1 times [2024-11-07 00:06:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856671730] [2024-11-07 00:06:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 00:06:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:23,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856671730] [2024-11-07 00:06:23,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856671730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:23,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:23,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:23,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102937298] [2024-11-07 00:06:23,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:23,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:23,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:23,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:23,832 INFO L87 Difference]: Start difference. First operand 24859 states and 35512 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:24,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:24,959 INFO L93 Difference]: Finished difference Result 55243 states and 79416 transitions. [2024-11-07 00:06:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:24,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 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 111 [2024-11-07 00:06:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:25,036 INFO L225 Difference]: With dead ends: 55243 [2024-11-07 00:06:25,036 INFO L226 Difference]: Without dead ends: 50055 [2024-11-07 00:06:25,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:25,200 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 1225 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:25,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 1550 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50055 states. [2024-11-07 00:06:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50055 to 29799. [2024-11-07 00:06:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29799 states, 29798 states have (on average 1.4279481844419089) internal successors, (42550), 29798 states have internal predecessors, (42550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29799 states to 29799 states and 42550 transitions. [2024-11-07 00:06:25,811 INFO L78 Accepts]: Start accepts. Automaton has 29799 states and 42550 transitions. Word has length 111 [2024-11-07 00:06:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:25,812 INFO L471 AbstractCegarLoop]: Abstraction has 29799 states and 42550 transitions. [2024-11-07 00:06:25,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 29799 states and 42550 transitions. [2024-11-07 00:06:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:06:25,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:25,815 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:25,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:06:25,815 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:25,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2117983273, now seen corresponding path program 1 times [2024-11-07 00:06:25,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:25,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867538627] [2024-11-07 00:06:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 00:06:26,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:26,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867538627] [2024-11-07 00:06:26,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867538627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:26,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:26,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:26,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736828002] [2024-11-07 00:06:26,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:26,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:26,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:26,115 INFO L87 Difference]: Start difference. First operand 29799 states and 42550 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:27,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:27,452 INFO L93 Difference]: Finished difference Result 60183 states and 86454 transitions. [2024-11-07 00:06:27,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:27,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 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 111 [2024-11-07 00:06:27,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:27,536 INFO L225 Difference]: With dead ends: 60183 [2024-11-07 00:06:27,536 INFO L226 Difference]: Without dead ends: 54995 [2024-11-07 00:06:27,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:27,563 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1163 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:27,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 1872 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:06:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54995 states. [2024-11-07 00:06:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54995 to 34739. [2024-11-07 00:06:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34739 states, 34738 states have (on average 1.4274857504749843) internal successors, (49588), 34738 states have internal predecessors, (49588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34739 states to 34739 states and 49588 transitions. [2024-11-07 00:06:28,834 INFO L78 Accepts]: Start accepts. Automaton has 34739 states and 49588 transitions. Word has length 111 [2024-11-07 00:06:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:28,835 INFO L471 AbstractCegarLoop]: Abstraction has 34739 states and 49588 transitions. [2024-11-07 00:06:28,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 34739 states and 49588 transitions. [2024-11-07 00:06:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:06:28,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:28,838 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:28,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:06:28,838 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:28,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:28,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1657991926, now seen corresponding path program 1 times [2024-11-07 00:06:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:28,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826993217] [2024-11-07 00:06:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:28,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 00:06:29,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:29,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826993217] [2024-11-07 00:06:29,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826993217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:29,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:29,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:06:29,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227425661] [2024-11-07 00:06:29,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:29,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:06:29,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:29,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:06:29,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:06:29,008 INFO L87 Difference]: Start difference. First operand 34739 states and 49588 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:30,438 INFO L93 Difference]: Finished difference Result 63857 states and 91626 transitions. [2024-11-07 00:06:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:06:30,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 111 [2024-11-07 00:06:30,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:30,508 INFO L225 Difference]: With dead ends: 63857 [2024-11-07 00:06:30,508 INFO L226 Difference]: Without dead ends: 59465 [2024-11-07 00:06:30,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:06:30,524 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1159 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:30,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 1674 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:06:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59465 states. [2024-11-07 00:06:31,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59465 to 39209. [2024-11-07 00:06:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39209 states, 39208 states have (on average 1.4266731279330749) internal successors, (55937), 39208 states have internal predecessors, (55937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39209 states to 39209 states and 55937 transitions. [2024-11-07 00:06:31,621 INFO L78 Accepts]: Start accepts. Automaton has 39209 states and 55937 transitions. Word has length 111 [2024-11-07 00:06:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:31,621 INFO L471 AbstractCegarLoop]: Abstraction has 39209 states and 55937 transitions. [2024-11-07 00:06:31,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 39209 states and 55937 transitions. [2024-11-07 00:06:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-07 00:06:31,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:31,625 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:31,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:06:31,625 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:31,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1861031529, now seen corresponding path program 1 times [2024-11-07 00:06:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559569907] [2024-11-07 00:06:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:31,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:31,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559569907] [2024-11-07 00:06:31,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559569907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:06:31,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:06:31,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:06:31,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556823853] [2024-11-07 00:06:31,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:06:31,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:06:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:06:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:06:31,701 INFO L87 Difference]: Start difference. First operand 39209 states and 55937 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:32,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:06:32,427 INFO L93 Difference]: Finished difference Result 56876 states and 80584 transitions. [2024-11-07 00:06:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:06:32,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-07 00:06:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:06:32,451 INFO L225 Difference]: With dead ends: 56876 [2024-11-07 00:06:32,451 INFO L226 Difference]: Without dead ends: 17716 [2024-11-07 00:06:32,476 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 00:06:32,478 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 40 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:06:32,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 301 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:06:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17716 states. [2024-11-07 00:06:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17716 to 15986. [2024-11-07 00:06:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15986 states, 15985 states have (on average 1.4052549264935876) internal successors, (22463), 15985 states have internal predecessors, (22463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:32,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15986 states to 15986 states and 22463 transitions. [2024-11-07 00:06:32,967 INFO L78 Accepts]: Start accepts. Automaton has 15986 states and 22463 transitions. Word has length 114 [2024-11-07 00:06:32,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:06:32,967 INFO L471 AbstractCegarLoop]: Abstraction has 15986 states and 22463 transitions. [2024-11-07 00:06:32,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:06:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 15986 states and 22463 transitions. [2024-11-07 00:06:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-07 00:06:33,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:06:33,053 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:06:33,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:06:33,053 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:06:33,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:06:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash -156099286, now seen corresponding path program 1 times [2024-11-07 00:06:33,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:06:33,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100781148] [2024-11-07 00:06:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:06:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:33,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:06:33,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100781148] [2024-11-07 00:06:33,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100781148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:06:33,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939076033] [2024-11-07 00:06:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:06:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:06:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:06:33,539 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 00:06:33,540 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 00:06:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:06:33,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-07 00:06:33,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:06:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:34,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 00:06:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:06:37,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939076033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 00:06:37,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 00:06:37,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 16] total 39 [2024-11-07 00:06:37,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434465213] [2024-11-07 00:06:37,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 00:06:37,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-07 00:06:37,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:06:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-07 00:06:37,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1276, Unknown=0, NotChecked=0, Total=1482 [2024-11-07 00:06:37,370 INFO L87 Difference]: Start difference. First operand 15986 states and 22463 transitions. Second operand has 39 states, 39 states have (on average 7.923076923076923) internal successors, (309), 39 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:07:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:07:05,017 INFO L93 Difference]: Finished difference Result 267634 states and 375364 transitions. [2024-11-07 00:07:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2024-11-07 00:07:05,018 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.923076923076923) internal successors, (309), 39 states have internal predecessors, (309), 0 states have call successors, (0), 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 114 [2024-11-07 00:07:05,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:07:05,327 INFO L225 Difference]: With dead ends: 267634 [2024-11-07 00:07:05,327 INFO L226 Difference]: Without dead ends: 251699 [2024-11-07 00:07:05,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37094 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=13500, Invalid=72056, Unknown=0, NotChecked=0, Total=85556 [2024-11-07 00:07:05,419 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 10522 mSDsluCounter, 4488 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10522 SdHoareTripleChecker+Valid, 4702 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:07:05,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10522 Valid, 4702 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-07 00:07:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251699 states. [2024-11-07 00:07:12,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251699 to 168718. [2024-11-07 00:07:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168718 states, 168717 states have (on average 1.3877676819763272) internal successors, (234140), 168717 states have internal predecessors, (234140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:07:13,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168718 states to 168718 states and 234140 transitions. [2024-11-07 00:07:13,164 INFO L78 Accepts]: Start accepts. Automaton has 168718 states and 234140 transitions. Word has length 114 [2024-11-07 00:07:13,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:07:13,164 INFO L471 AbstractCegarLoop]: Abstraction has 168718 states and 234140 transitions. [2024-11-07 00:07:13,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.923076923076923) internal successors, (309), 39 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:07:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 168718 states and 234140 transitions. [2024-11-07 00:07:13,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-07 00:07:13,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:07:13,169 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 00:07:13,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 00:07:13,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:07:13,369 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:07:13,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:07:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1310515122, now seen corresponding path program 1 times [2024-11-07 00:07:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:07:13,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896685634] [2024-11-07 00:07:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:07:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:07:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:07:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:07:13,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:07:13,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896685634] [2024-11-07 00:07:13,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896685634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:07:13,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:07:13,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:07:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478071792] [2024-11-07 00:07:13,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:07:13,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:07:13,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:07:13,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:07:13,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:07:13,442 INFO L87 Difference]: Start difference. First operand 168718 states and 234140 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)