./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.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_floodmax.5_overflow.ufo.UNBOUNDED.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', '944b5ec42c2162154ede6c802018109a010424c3110973822c2880295480d39e'] 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_floodmax.5_overflow.ufo.UNBOUNDED.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 944b5ec42c2162154ede6c802018109a010424c3110973822c2880295480d39e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:03:52,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:03:52,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:03:52,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:03:52,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:03:52,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:03:52,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:03:52,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:03:52,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:03:52,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:03:52,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:03:52,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:03:52,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:03:52,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:03:52,229 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:03:52,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:03:52,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:03:52,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:03:52,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:03:52,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:03:52,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:03:52,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:03:52,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:03:52,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:03:52,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:03:52,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:03:52,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:03:52,233 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 -> 944b5ec42c2162154ede6c802018109a010424c3110973822c2880295480d39e [2024-11-07 00:03:52,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:03:52,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:03:52,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:03:52,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:03:52,588 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:03:52,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2024-11-07 00:03:53,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:03:54,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:03:54,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2024-11-07 00:03:54,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af0bed78d/05d755b876994a1db33894af337c701b/FLAG06e6519ae [2024-11-07 00:03:54,328 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af0bed78d/05d755b876994a1db33894af337c701b [2024-11-07 00:03:54,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:03:54,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:03:54,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:03:54,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:03:54,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:03:54,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:54" (1/1) ... [2024-11-07 00:03:54,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f58f9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:54, skipping insertion in model container [2024-11-07 00:03:54,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:54" (1/1) ... [2024-11-07 00:03:54,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:03:54,879 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_floodmax.5_overflow.ufo.UNBOUNDED.pals.c[61047,61060] [2024-11-07 00:03:54,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:03:54,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:03:55,050 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_floodmax.5_overflow.ufo.UNBOUNDED.pals.c[61047,61060] [2024-11-07 00:03:55,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:03:55,071 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:03:55,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55 WrapperNode [2024-11-07 00:03:55,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:03:55,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:03:55,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:03:55,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:03:55,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,198 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2042 [2024-11-07 00:03:55,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:03:55,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:03:55,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:03:55,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:03:55,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,274 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 00:03:55,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:03:55,385 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:03:55,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:03:55,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:03:55,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (1/1) ... [2024-11-07 00:03:55,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:03:55,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:03:55,425 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 00:03:55,429 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 00:03:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:03:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:03:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:03:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:03:55,670 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:03:55,672 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:03:58,130 INFO L? ?]: Removed 235 outVars from TransFormulas that were not future-live. [2024-11-07 00:03:58,130 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:03:58,178 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:03:58,178 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 00:03:58,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:58 BoogieIcfgContainer [2024-11-07 00:03:58,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:03:58,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:03:58,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:03:58,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:03:58,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:03:54" (1/3) ... [2024-11-07 00:03:58,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a13835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:58, skipping insertion in model container [2024-11-07 00:03:58,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:55" (2/3) ... [2024-11-07 00:03:58,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a13835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:58, skipping insertion in model container [2024-11-07 00:03:58,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:58" (3/3) ... [2024-11-07 00:03:58,196 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2024-11-07 00:03:58,231 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:03:58,232 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:03:58,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:03:58,343 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;@425f068f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:03:58,343 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:03:58,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 666 states, 664 states have (on average 1.8719879518072289) internal successors, (1243), 665 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:03:58,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 00:03:58,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:03:58,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:03:58,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:03:58,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:03:58,386 INFO L85 PathProgramCache]: Analyzing trace with hash -310296854, now seen corresponding path program 1 times [2024-11-07 00:03:58,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:03:58,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723644635] [2024-11-07 00:03:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:03:58,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:03:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:03:59,278 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 00:03:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:03:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723644635] [2024-11-07 00:03:59,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723644635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:03:59,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:03:59,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:03:59,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471120380] [2024-11-07 00:03:59,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:03:59,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 00:03:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:03:59,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 00:03:59,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 00:03:59,333 INFO L87 Difference]: Start difference. First operand has 666 states, 664 states have (on average 1.8719879518072289) internal successors, (1243), 665 states have internal predecessors, (1243), 0 states have call successors, (0), 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 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:03:59,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:03:59,408 INFO L93 Difference]: Finished difference Result 783 states and 1457 transitions. [2024-11-07 00:03:59,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 00:03:59,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-07 00:03:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:03:59,424 INFO L225 Difference]: With dead ends: 783 [2024-11-07 00:03:59,425 INFO L226 Difference]: Without dead ends: 662 [2024-11-07 00:03:59,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 00:03:59,439 INFO L432 NwaCegarLoop]: 1236 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:03:59,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:03:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-07 00:03:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-07 00:03:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.8698940998487141) internal successors, (1236), 661 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:03:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1236 transitions. [2024-11-07 00:03:59,537 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1236 transitions. Word has length 153 [2024-11-07 00:03:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:03:59,538 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1236 transitions. [2024-11-07 00:03:59,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:03:59,538 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1236 transitions. [2024-11-07 00:03:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 00:03:59,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:03:59,542 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:03:59,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:03:59,543 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:03:59,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:03:59,544 INFO L85 PathProgramCache]: Analyzing trace with hash -819769944, now seen corresponding path program 1 times [2024-11-07 00:03:59,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:03:59,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521121541] [2024-11-07 00:03:59,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:03:59,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:03:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:00,416 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 00:04:00,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521121541] [2024-11-07 00:04:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521121541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:00,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:00,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:04:00,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504437781] [2024-11-07 00:04:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:00,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:04:00,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:00,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:04:00,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:04:00,423 INFO L87 Difference]: Start difference. First operand 662 states and 1236 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:00,608 INFO L93 Difference]: Finished difference Result 782 states and 1450 transitions. [2024-11-07 00:04:00,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:04:00,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-07 00:04:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:00,617 INFO L225 Difference]: With dead ends: 782 [2024-11-07 00:04:00,618 INFO L226 Difference]: Without dead ends: 662 [2024-11-07 00:04:00,619 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 00:04:00,619 INFO L432 NwaCegarLoop]: 1234 mSDtfsCounter, 0 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4871 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:00,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4871 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:04:00,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-07 00:04:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-07 00:04:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.779122541603631) internal successors, (1176), 661 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1176 transitions. [2024-11-07 00:04:00,650 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1176 transitions. Word has length 153 [2024-11-07 00:04:00,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:00,651 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1176 transitions. [2024-11-07 00:04:00,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1176 transitions. [2024-11-07 00:04:00,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-07 00:04:00,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:00,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:00,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:04:00,655 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:00,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:00,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1239941969, now seen corresponding path program 1 times [2024-11-07 00:04:00,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:00,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696894364] [2024-11-07 00:04:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:00,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:01,152 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 00:04:01,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:01,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696894364] [2024-11-07 00:04:01,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696894364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:01,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:01,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:01,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011528407] [2024-11-07 00:04:01,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:01,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:01,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:01,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:01,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:01,160 INFO L87 Difference]: Start difference. First operand 662 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:01,241 INFO L93 Difference]: Finished difference Result 881 states and 1571 transitions. [2024-11-07 00:04:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:01,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-07 00:04:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:01,249 INFO L225 Difference]: With dead ends: 881 [2024-11-07 00:04:01,249 INFO L226 Difference]: Without dead ends: 765 [2024-11-07 00:04:01,251 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 00:04:01,251 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 177 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:01,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2287 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:04:01,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-07 00:04:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 763. [2024-11-07 00:04:01,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.7782152230971129) internal successors, (1355), 762 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1355 transitions. [2024-11-07 00:04:01,286 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1355 transitions. Word has length 212 [2024-11-07 00:04:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:01,288 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1355 transitions. [2024-11-07 00:04:01,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1355 transitions. [2024-11-07 00:04:01,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-07 00:04:01,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:01,294 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:01,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:04:01,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:01,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1044640645, now seen corresponding path program 1 times [2024-11-07 00:04:01,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:01,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904011443] [2024-11-07 00:04:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:01,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:01,668 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 00:04:01,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:01,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904011443] [2024-11-07 00:04:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904011443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:01,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:01,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:01,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908204800] [2024-11-07 00:04:01,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:01,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:01,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:01,673 INFO L87 Difference]: Start difference. First operand 763 states and 1355 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:01,739 INFO L93 Difference]: Finished difference Result 1175 states and 2091 transitions. [2024-11-07 00:04:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:01,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-07 00:04:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:01,747 INFO L225 Difference]: With dead ends: 1175 [2024-11-07 00:04:01,748 INFO L226 Difference]: Without dead ends: 958 [2024-11-07 00:04:01,749 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 00:04:01,752 INFO L432 NwaCegarLoop]: 1174 mSDtfsCounter, 177 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:01,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2295 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-07 00:04:01,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 956. [2024-11-07 00:04:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 955 states have (on average 1.7790575916230367) internal successors, (1699), 955 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1699 transitions. [2024-11-07 00:04:01,799 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1699 transitions. Word has length 216 [2024-11-07 00:04:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:01,800 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1699 transitions. [2024-11-07 00:04:01,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1699 transitions. [2024-11-07 00:04:01,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-07 00:04:01,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:01,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:01,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:04:01,806 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:01,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1432529271, now seen corresponding path program 1 times [2024-11-07 00:04:01,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:01,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493877711] [2024-11-07 00:04:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:01,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:02,205 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 00:04:02,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493877711] [2024-11-07 00:04:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493877711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:02,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:02,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123390084] [2024-11-07 00:04:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:02,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:02,210 INFO L87 Difference]: Start difference. First operand 956 states and 1699 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:02,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:02,282 INFO L93 Difference]: Finished difference Result 1732 states and 3081 transitions. [2024-11-07 00:04:02,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:02,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2024-11-07 00:04:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:02,290 INFO L225 Difference]: With dead ends: 1732 [2024-11-07 00:04:02,290 INFO L226 Difference]: Without dead ends: 1322 [2024-11-07 00:04:02,292 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 00:04:02,294 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 169 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:02,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2403 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-07 00:04:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320. [2024-11-07 00:04:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.7763457164518575) internal successors, (2343), 1319 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2343 transitions. [2024-11-07 00:04:02,341 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2343 transitions. Word has length 220 [2024-11-07 00:04:02,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:02,342 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2343 transitions. [2024-11-07 00:04:02,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2343 transitions. [2024-11-07 00:04:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-07 00:04:02,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:02,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:02,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:04:02,348 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:02,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:02,349 INFO L85 PathProgramCache]: Analyzing trace with hash 567555586, now seen corresponding path program 1 times [2024-11-07 00:04:02,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:02,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810122493] [2024-11-07 00:04:02,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:02,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:02,631 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 00:04:02,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:02,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810122493] [2024-11-07 00:04:02,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810122493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:02,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:02,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:02,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608974754] [2024-11-07 00:04:02,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:02,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:02,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:02,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:02,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:02,635 INFO L87 Difference]: Start difference. First operand 1320 states and 2343 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:02,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:02,717 INFO L93 Difference]: Finished difference Result 2137 states and 3795 transitions. [2024-11-07 00:04:02,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:02,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-11-07 00:04:02,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:02,730 INFO L225 Difference]: With dead ends: 2137 [2024-11-07 00:04:02,731 INFO L226 Difference]: Without dead ends: 1727 [2024-11-07 00:04:02,733 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 00:04:02,734 INFO L432 NwaCegarLoop]: 1282 mSDtfsCounter, 170 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:02,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 2435 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:04:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-11-07 00:04:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1725. [2024-11-07 00:04:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1724 states have (on average 1.7708816705336428) internal successors, (3053), 1724 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 3053 transitions. [2024-11-07 00:04:02,799 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 3053 transitions. Word has length 224 [2024-11-07 00:04:02,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:02,800 INFO L471 AbstractCegarLoop]: Abstraction has 1725 states and 3053 transitions. [2024-11-07 00:04:02,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:02,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 3053 transitions. [2024-11-07 00:04:02,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-07 00:04:02,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:02,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:02,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:04:02,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:02,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:02,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1569519721, now seen corresponding path program 1 times [2024-11-07 00:04:02,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:02,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032993554] [2024-11-07 00:04:02,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:02,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:04:03,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:03,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032993554] [2024-11-07 00:04:03,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032993554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:03,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:03,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:03,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120679471] [2024-11-07 00:04:03,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:03,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:03,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:03,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:03,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:03,183 INFO L87 Difference]: Start difference. First operand 1725 states and 3053 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:03,260 INFO L93 Difference]: Finished difference Result 3821 states and 6755 transitions. [2024-11-07 00:04:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:03,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-11-07 00:04:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:03,274 INFO L225 Difference]: With dead ends: 3821 [2024-11-07 00:04:03,274 INFO L226 Difference]: Without dead ends: 2707 [2024-11-07 00:04:03,279 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 00:04:03,282 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 161 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:03,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2298 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2024-11-07 00:04:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2705. [2024-11-07 00:04:03,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2704 states have (on average 1.7622041420118344) internal successors, (4765), 2704 states have internal predecessors, (4765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:03,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4765 transitions. [2024-11-07 00:04:03,375 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4765 transitions. Word has length 224 [2024-11-07 00:04:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:03,377 INFO L471 AbstractCegarLoop]: Abstraction has 2705 states and 4765 transitions. [2024-11-07 00:04:03,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4765 transitions. [2024-11-07 00:04:03,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-07 00:04:03,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:03,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:03,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:04:03,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:03,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash -517197085, now seen corresponding path program 1 times [2024-11-07 00:04:03,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:03,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111431937] [2024-11-07 00:04:03,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:03,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:03,747 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 00:04:03,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:03,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111431937] [2024-11-07 00:04:03,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111431937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:03,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:03,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:03,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784048358] [2024-11-07 00:04:03,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:03,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:03,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:03,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:03,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:03,750 INFO L87 Difference]: Start difference. First operand 2705 states and 4765 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:03,842 INFO L93 Difference]: Finished difference Result 6629 states and 11639 transitions. [2024-11-07 00:04:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2024-11-07 00:04:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:03,864 INFO L225 Difference]: With dead ends: 6629 [2024-11-07 00:04:03,864 INFO L226 Difference]: Without dead ends: 4535 [2024-11-07 00:04:03,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:03,872 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 153 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:03,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2299 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:03,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2024-11-07 00:04:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 4533. [2024-11-07 00:04:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4533 states, 4532 states have (on average 1.748676081200353) internal successors, (7925), 4532 states have internal predecessors, (7925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 7925 transitions. [2024-11-07 00:04:04,034 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 7925 transitions. Word has length 228 [2024-11-07 00:04:04,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:04,034 INFO L471 AbstractCegarLoop]: Abstraction has 4533 states and 7925 transitions. [2024-11-07 00:04:04,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 7925 transitions. [2024-11-07 00:04:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 00:04:04,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:04,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:04,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:04:04,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:04,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:04,041 INFO L85 PathProgramCache]: Analyzing trace with hash -630211409, now seen corresponding path program 1 times [2024-11-07 00:04:04,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:04,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048218410] [2024-11-07 00:04:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:04:04,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:04,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048218410] [2024-11-07 00:04:04,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048218410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:04,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:04,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:04:04,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283755963] [2024-11-07 00:04:04,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:04,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:04:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:04:04,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:04:04,675 INFO L87 Difference]: Start difference. First operand 4533 states and 7925 transitions. Second operand has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:05,395 INFO L93 Difference]: Finished difference Result 28267 states and 49824 transitions. [2024-11-07 00:04:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 00:04:05,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2024-11-07 00:04:05,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:05,502 INFO L225 Difference]: With dead ends: 28267 [2024-11-07 00:04:05,503 INFO L226 Difference]: Without dead ends: 24345 [2024-11-07 00:04:05,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:04:05,525 INFO L432 NwaCegarLoop]: 1164 mSDtfsCounter, 3189 mSDsluCounter, 7111 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3189 SdHoareTripleChecker+Valid, 8275 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:05,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3189 Valid, 8275 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:04:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24345 states. [2024-11-07 00:04:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24345 to 8331. [2024-11-07 00:04:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8331 states, 8330 states have (on average 1.7451380552220888) internal successors, (14537), 8330 states have internal predecessors, (14537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:06,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8331 states to 8331 states and 14537 transitions. [2024-11-07 00:04:06,041 INFO L78 Accepts]: Start accepts. Automaton has 8331 states and 14537 transitions. Word has length 232 [2024-11-07 00:04:06,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:06,042 INFO L471 AbstractCegarLoop]: Abstraction has 8331 states and 14537 transitions. [2024-11-07 00:04:06,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8331 states and 14537 transitions. [2024-11-07 00:04:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-07 00:04:06,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:06,048 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:06,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:04:06,049 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:06,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash -328096768, now seen corresponding path program 1 times [2024-11-07 00:04:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:06,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934064247] [2024-11-07 00:04:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:06,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:06,437 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 00:04:06,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:06,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934064247] [2024-11-07 00:04:06,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934064247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:06,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:06,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:04:06,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956039154] [2024-11-07 00:04:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:06,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:04:06,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:06,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:04:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:04:06,442 INFO L87 Difference]: Start difference. First operand 8331 states and 14537 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:06,724 INFO L93 Difference]: Finished difference Result 24382 states and 42801 transitions. [2024-11-07 00:04:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:04:06,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-07 00:04:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:06,778 INFO L225 Difference]: With dead ends: 24382 [2024-11-07 00:04:06,778 INFO L226 Difference]: Without dead ends: 16689 [2024-11-07 00:04:06,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:04:06,799 INFO L432 NwaCegarLoop]: 1164 mSDtfsCounter, 596 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:06,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 3519 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:04:06,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16689 states. [2024-11-07 00:04:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16689 to 12473. [2024-11-07 00:04:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12473 states, 12472 states have (on average 1.7471135343168698) internal successors, (21790), 12472 states have internal predecessors, (21790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12473 states to 12473 states and 21790 transitions. [2024-11-07 00:04:07,291 INFO L78 Accepts]: Start accepts. Automaton has 12473 states and 21790 transitions. Word has length 233 [2024-11-07 00:04:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:07,291 INFO L471 AbstractCegarLoop]: Abstraction has 12473 states and 21790 transitions. [2024-11-07 00:04:07,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:07,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12473 states and 21790 transitions. [2024-11-07 00:04:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-07 00:04:07,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:07,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:07,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:04:07,300 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:07,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:07,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1319231316, now seen corresponding path program 1 times [2024-11-07 00:04:07,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:07,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043133192] [2024-11-07 00:04:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:07,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:07,626 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 00:04:07,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:07,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043133192] [2024-11-07 00:04:07,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043133192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:07,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:07,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:07,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382376040] [2024-11-07 00:04:07,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:07,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:07,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:07,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:07,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:07,629 INFO L87 Difference]: Start difference. First operand 12473 states and 21790 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:07,886 INFO L93 Difference]: Finished difference Result 24269 states and 42412 transitions. [2024-11-07 00:04:07,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:07,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-07 00:04:07,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:07,940 INFO L225 Difference]: With dead ends: 24269 [2024-11-07 00:04:07,941 INFO L226 Difference]: Without dead ends: 17907 [2024-11-07 00:04:07,959 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 00:04:07,961 INFO L432 NwaCegarLoop]: 1236 mSDtfsCounter, 154 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 2391 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 00:04:07,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 2391 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:07,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17907 states. [2024-11-07 00:04:08,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17907 to 17905. [2024-11-07 00:04:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17905 states, 17904 states have (on average 1.7374888293118855) internal successors, (31108), 17904 states have internal predecessors, (31108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17905 states to 17905 states and 31108 transitions. [2024-11-07 00:04:08,484 INFO L78 Accepts]: Start accepts. Automaton has 17905 states and 31108 transitions. Word has length 233 [2024-11-07 00:04:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:08,485 INFO L471 AbstractCegarLoop]: Abstraction has 17905 states and 31108 transitions. [2024-11-07 00:04:08,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 17905 states and 31108 transitions. [2024-11-07 00:04:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-07 00:04:08,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:08,491 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:08,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:04:08,491 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:08,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash -928421424, now seen corresponding path program 1 times [2024-11-07 00:04:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:08,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691418774] [2024-11-07 00:04:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:08,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:08,780 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 00:04:08,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:08,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691418774] [2024-11-07 00:04:08,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691418774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:08,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:08,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:08,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343934086] [2024-11-07 00:04:08,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:08,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:08,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:08,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:08,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:08,784 INFO L87 Difference]: Start difference. First operand 17905 states and 31108 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:09,065 INFO L93 Difference]: Finished difference Result 34325 states and 59694 transitions. [2024-11-07 00:04:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-07 00:04:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:09,136 INFO L225 Difference]: With dead ends: 34325 [2024-11-07 00:04:09,136 INFO L226 Difference]: Without dead ends: 25061 [2024-11-07 00:04:09,162 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 00:04:09,162 INFO L432 NwaCegarLoop]: 1270 mSDtfsCounter, 162 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2424 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 00:04:09,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 2424 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:09,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25061 states. [2024-11-07 00:04:09,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25061 to 25059. [2024-11-07 00:04:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25059 states, 25058 states have (on average 1.7287093942054435) internal successors, (43318), 25058 states have internal predecessors, (43318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25059 states to 25059 states and 43318 transitions. [2024-11-07 00:04:09,938 INFO L78 Accepts]: Start accepts. Automaton has 25059 states and 43318 transitions. Word has length 233 [2024-11-07 00:04:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:09,939 INFO L471 AbstractCegarLoop]: Abstraction has 25059 states and 43318 transitions. [2024-11-07 00:04:09,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 25059 states and 43318 transitions. [2024-11-07 00:04:09,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-07 00:04:09,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:09,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:09,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:04:09,944 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:09,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:09,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1056462478, now seen corresponding path program 1 times [2024-11-07 00:04:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:09,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047181951] [2024-11-07 00:04:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:09,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:10,157 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 00:04:10,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:10,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047181951] [2024-11-07 00:04:10,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047181951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:10,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:10,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:10,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908791606] [2024-11-07 00:04:10,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:10,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:10,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:10,160 INFO L87 Difference]: Start difference. First operand 25059 states and 43318 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:10,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:10,632 INFO L93 Difference]: Finished difference Result 48445 states and 83820 transitions. [2024-11-07 00:04:10,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:10,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-07 00:04:10,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:10,734 INFO L225 Difference]: With dead ends: 48445 [2024-11-07 00:04:10,734 INFO L226 Difference]: Without dead ends: 35221 [2024-11-07 00:04:10,762 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 00:04:10,763 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 178 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2468 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 00:04:10,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 2468 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:04:10,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35221 states. [2024-11-07 00:04:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35221 to 35219. [2024-11-07 00:04:11,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35219 states, 35218 states have (on average 1.719802373786132) internal successors, (60568), 35218 states have internal predecessors, (60568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35219 states to 35219 states and 60568 transitions. [2024-11-07 00:04:11,756 INFO L78 Accepts]: Start accepts. Automaton has 35219 states and 60568 transitions. Word has length 233 [2024-11-07 00:04:11,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:11,757 INFO L471 AbstractCegarLoop]: Abstraction has 35219 states and 60568 transitions. [2024-11-07 00:04:11,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:11,757 INFO L276 IsEmpty]: Start isEmpty. Operand 35219 states and 60568 transitions. [2024-11-07 00:04:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-07 00:04:11,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:11,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:11,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:04:11,763 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:11,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:11,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2050411316, now seen corresponding path program 1 times [2024-11-07 00:04:11,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:11,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80456772] [2024-11-07 00:04:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:11,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:12,024 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 00:04:12,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:12,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80456772] [2024-11-07 00:04:12,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80456772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:12,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:12,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:04:12,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475100092] [2024-11-07 00:04:12,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:12,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:04:12,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:12,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:04:12,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:04:12,027 INFO L87 Difference]: Start difference. First operand 35219 states and 60568 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:13,036 INFO L93 Difference]: Finished difference Result 79111 states and 136612 transitions. [2024-11-07 00:04:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:04:13,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-07 00:04:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:13,223 INFO L225 Difference]: With dead ends: 79111 [2024-11-07 00:04:13,223 INFO L226 Difference]: Without dead ends: 54409 [2024-11-07 00:04:13,264 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 00:04:13,264 INFO L432 NwaCegarLoop]: 1341 mSDtfsCounter, 186 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:13,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 2492 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:04:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54409 states. [2024-11-07 00:04:14,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54409 to 54407. [2024-11-07 00:04:14,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54407 states, 54406 states have (on average 1.7115943094511634) internal successors, (93121), 54406 states have internal predecessors, (93121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54407 states to 54407 states and 93121 transitions. [2024-11-07 00:04:14,832 INFO L78 Accepts]: Start accepts. Automaton has 54407 states and 93121 transitions. Word has length 233 [2024-11-07 00:04:14,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:14,832 INFO L471 AbstractCegarLoop]: Abstraction has 54407 states and 93121 transitions. [2024-11-07 00:04:14,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 54407 states and 93121 transitions. [2024-11-07 00:04:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-07 00:04:14,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:14,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:14,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:04:14,837 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:14,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:14,838 INFO L85 PathProgramCache]: Analyzing trace with hash 616526854, now seen corresponding path program 1 times [2024-11-07 00:04:14,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:14,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308419238] [2024-11-07 00:04:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:14,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:15,192 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 00:04:15,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:15,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308419238] [2024-11-07 00:04:15,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308419238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:15,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:15,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:04:15,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400364032] [2024-11-07 00:04:15,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:15,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:04:15,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:15,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:04:15,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:04:15,195 INFO L87 Difference]: Start difference. First operand 54407 states and 93121 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:16,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:16,584 INFO L93 Difference]: Finished difference Result 180408 states and 309174 transitions. [2024-11-07 00:04:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:04:16,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2024-11-07 00:04:16,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:17,052 INFO L225 Difference]: With dead ends: 180408 [2024-11-07 00:04:17,053 INFO L226 Difference]: Without dead ends: 126581 [2024-11-07 00:04:17,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:04:17,143 INFO L432 NwaCegarLoop]: 1165 mSDtfsCounter, 594 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 3654 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:17,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 3654 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:04:17,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126581 states. [2024-11-07 00:04:19,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126581 to 90225. [2024-11-07 00:04:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90225 states, 90224 states have (on average 1.7041917893243483) internal successors, (153759), 90224 states have internal predecessors, (153759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90225 states to 90225 states and 153759 transitions. [2024-11-07 00:04:19,745 INFO L78 Accepts]: Start accepts. Automaton has 90225 states and 153759 transitions. Word has length 234 [2024-11-07 00:04:19,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:19,749 INFO L471 AbstractCegarLoop]: Abstraction has 90225 states and 153759 transitions. [2024-11-07 00:04:19,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 90225 states and 153759 transitions. [2024-11-07 00:04:19,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-07 00:04:19,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:19,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:19,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:04:19,761 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:19,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash 4092407, now seen corresponding path program 1 times [2024-11-07 00:04:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:19,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258403752] [2024-11-07 00:04:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:20,098 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 00:04:20,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:20,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258403752] [2024-11-07 00:04:20,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258403752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:20,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:20,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:04:20,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216762897] [2024-11-07 00:04:20,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:20,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:04:20,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:04:20,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:04:20,102 INFO L87 Difference]: Start difference. First operand 90225 states and 153759 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:22,258 INFO L93 Difference]: Finished difference Result 299376 states and 510894 transitions. [2024-11-07 00:04:22,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:04:22,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 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 235 [2024-11-07 00:04:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:23,033 INFO L225 Difference]: With dead ends: 299376 [2024-11-07 00:04:23,034 INFO L226 Difference]: Without dead ends: 209731 [2024-11-07 00:04:23,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:04:23,110 INFO L432 NwaCegarLoop]: 1172 mSDtfsCounter, 592 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:23,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 3663 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:04:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209731 states. [2024-11-07 00:04:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209731 to 149535. [2024-11-07 00:04:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149535 states, 149534 states have (on average 1.6969318014632124) internal successors, (253749), 149534 states have internal predecessors, (253749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:26,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149535 states to 149535 states and 253749 transitions. [2024-11-07 00:04:26,614 INFO L78 Accepts]: Start accepts. Automaton has 149535 states and 253749 transitions. Word has length 235 [2024-11-07 00:04:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:26,615 INFO L471 AbstractCegarLoop]: Abstraction has 149535 states and 253749 transitions. [2024-11-07 00:04:26,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 149535 states and 253749 transitions. [2024-11-07 00:04:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-07 00:04:26,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:26,618 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:26,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:04:26,619 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:26,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1632501923, now seen corresponding path program 1 times [2024-11-07 00:04:26,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:26,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289121724] [2024-11-07 00:04:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:26,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:26,906 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 00:04:26,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:26,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289121724] [2024-11-07 00:04:26,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289121724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:26,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:26,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:04:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615275611] [2024-11-07 00:04:26,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:26,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:04:26,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:26,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:04:26,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:04:26,912 INFO L87 Difference]: Start difference. First operand 149535 states and 253749 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:30,873 INFO L93 Difference]: Finished difference Result 494936 states and 841118 transitions. [2024-11-07 00:04:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:04:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2024-11-07 00:04:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:31,633 INFO L225 Difference]: With dead ends: 494936 [2024-11-07 00:04:31,633 INFO L226 Difference]: Without dead ends: 345981 [2024-11-07 00:04:31,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:04:31,773 INFO L432 NwaCegarLoop]: 1165 mSDtfsCounter, 590 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:31,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 3658 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:04:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345981 states. [2024-11-07 00:04:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345981 to 247033. [2024-11-07 00:04:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247033 states, 247032 states have (on average 1.689866090223129) internal successors, (417451), 247032 states have internal predecessors, (417451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247033 states to 247033 states and 417451 transitions. [2024-11-07 00:04:37,518 INFO L78 Accepts]: Start accepts. Automaton has 247033 states and 417451 transitions. Word has length 236 [2024-11-07 00:04:37,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:04:37,518 INFO L471 AbstractCegarLoop]: Abstraction has 247033 states and 417451 transitions. [2024-11-07 00:04:37,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 247033 states and 417451 transitions. [2024-11-07 00:04:37,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-07 00:04:37,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:04:37,520 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:04:37,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:04:37,520 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:04:37,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:04:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash -658314258, now seen corresponding path program 1 times [2024-11-07 00:04:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:04:37,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227427460] [2024-11-07 00:04:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:04:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:04:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:04:37,840 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 00:04:37,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:04:37,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227427460] [2024-11-07 00:04:37,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227427460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:04:37,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:04:37,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:04:37,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959934753] [2024-11-07 00:04:37,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:04:37,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:04:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:04:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:04:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:04:37,847 INFO L87 Difference]: Start difference. First operand 247033 states and 417451 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:04:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:04:43,757 INFO L93 Difference]: Finished difference Result 811984 states and 1374342 transitions. [2024-11-07 00:04:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:04:43,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2024-11-07 00:04:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:04:45,050 INFO L225 Difference]: With dead ends: 811984 [2024-11-07 00:04:45,050 INFO L226 Difference]: Without dead ends: 565531 [2024-11-07 00:04:45,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:04:45,298 INFO L432 NwaCegarLoop]: 1164 mSDtfsCounter, 588 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:04:45,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 3641 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:04:45,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565531 states.