./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'e4ea09104fdfc6025836c8ea5917b899069d556f85aa19eff5395187d58ecb3d'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4ea09104fdfc6025836c8ea5917b899069d556f85aa19eff5395187d58ecb3d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:36:08,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:36:09,043 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:36:09,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:36:09,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:36:09,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:36:09,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:36:09,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:36:09,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:36:09,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:36:09,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:36:09,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:36:09,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:36:09,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:36:09,075 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:36:09,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:36:09,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:36:09,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:36:09,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:36:09,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:36:09,076 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:36:09,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:36:09,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:36:09,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:36:09,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:36:09,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:36:09,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:36:09,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:36:09,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:36:09,078 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 -> e4ea09104fdfc6025836c8ea5917b899069d556f85aa19eff5395187d58ecb3d [2024-11-07 00:36:09,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:36:09,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:36:09,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:36:09,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:36:09,344 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:36:09,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-07 00:36:10,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:36:10,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:36:10,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-07 00:36:10,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f660584d3/28af840c25014e6b8c567a527358ed51/FLAG6ac67575e [2024-11-07 00:36:10,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f660584d3/28af840c25014e6b8c567a527358ed51 [2024-11-07 00:36:10,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:36:10,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:36:10,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:36:10,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:36:10,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:36:10,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:10" (1/1) ... [2024-11-07 00:36:10,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703fe13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:10, skipping insertion in model container [2024-11-07 00:36:10,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:36:10" (1/1) ... [2024-11-07 00:36:10,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:36:10,981 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[8640,8653] [2024-11-07 00:36:11,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:36:11,015 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:36:11,055 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[8640,8653] [2024-11-07 00:36:11,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:36:11,090 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:36:11,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11 WrapperNode [2024-11-07 00:36:11,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:36:11,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:36:11,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:36:11,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:36:11,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,155 INFO L138 Inliner]: procedures = 28, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 716 [2024-11-07 00:36:11,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:36:11,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:36:11,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:36:11,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:36:11,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,169 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,185 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 00:36:11,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:36:11,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:36:11,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:36:11,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:36:11,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (1/1) ... [2024-11-07 00:36:11,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:36:11,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:36:11,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 00:36:11,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 00:36:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:36:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:36:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:36:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:36:11,376 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:36:11,377 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:36:11,882 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-07 00:36:11,882 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:36:11,893 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:36:11,895 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:36:11,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:11 BoogieIcfgContainer [2024-11-07 00:36:11,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:36:11,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:36:11,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:36:11,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:36:11,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:36:10" (1/3) ... [2024-11-07 00:36:11,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74eb2910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:11, skipping insertion in model container [2024-11-07 00:36:11,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:36:11" (2/3) ... [2024-11-07 00:36:11,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74eb2910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:36:11, skipping insertion in model container [2024-11-07 00:36:11,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:36:11" (3/3) ... [2024-11-07 00:36:11,904 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-07 00:36:11,915 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:36:11,916 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:36:11,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:36:11,974 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;@7073472b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:36:11,974 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:36:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 157 states have (on average 1.7515923566878981) internal successors, (275), 158 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 00:36:11,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:11,987 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] [2024-11-07 00:36:11,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:11,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 521817496, now seen corresponding path program 1 times [2024-11-07 00:36:11,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145000158] [2024-11-07 00:36:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:12,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145000158] [2024-11-07 00:36:12,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145000158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:12,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:12,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:12,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481701252] [2024-11-07 00:36:12,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:12,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:12,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:12,437 INFO L87 Difference]: Start difference. First operand has 159 states, 157 states have (on average 1.7515923566878981) internal successors, (275), 158 states have internal predecessors, (275), 0 states have call successors, (0), 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 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:12,496 INFO L93 Difference]: Finished difference Result 341 states and 560 transitions. [2024-11-07 00:36:12,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-07 00:36:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:12,507 INFO L225 Difference]: With dead ends: 341 [2024-11-07 00:36:12,507 INFO L226 Difference]: Without dead ends: 240 [2024-11-07 00:36:12,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:12,513 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 186 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:12,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 541 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:12,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-07 00:36:12,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2024-11-07 00:36:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.4388185654008439) internal successors, (341), 237 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 341 transitions. [2024-11-07 00:36:12,561 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 341 transitions. Word has length 102 [2024-11-07 00:36:12,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:12,562 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 341 transitions. [2024-11-07 00:36:12,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 341 transitions. [2024-11-07 00:36:12,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-07 00:36:12,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:12,566 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] [2024-11-07 00:36:12,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:36:12,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:12,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1097817700, now seen corresponding path program 1 times [2024-11-07 00:36:12,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:12,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963883969] [2024-11-07 00:36:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:12,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:12,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:12,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963883969] [2024-11-07 00:36:12,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963883969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:12,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:12,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:12,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524607351] [2024-11-07 00:36:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:12,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:12,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:12,770 INFO L87 Difference]: Start difference. First operand 238 states and 341 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:12,806 INFO L93 Difference]: Finished difference Result 570 states and 869 transitions. [2024-11-07 00:36:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:12,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-07 00:36:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:12,811 INFO L225 Difference]: With dead ends: 570 [2024-11-07 00:36:12,813 INFO L226 Difference]: Without dead ends: 396 [2024-11-07 00:36:12,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:12,814 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 461 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 00:36:12,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:12,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-07 00:36:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2024-11-07 00:36:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 393 states have (on average 1.4987277353689568) internal successors, (589), 393 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 589 transitions. [2024-11-07 00:36:12,829 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 589 transitions. Word has length 103 [2024-11-07 00:36:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:12,830 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 589 transitions. [2024-11-07 00:36:12,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:12,830 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 589 transitions. [2024-11-07 00:36:12,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-07 00:36:12,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:12,832 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] [2024-11-07 00:36:12,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:36:12,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:12,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:12,833 INFO L85 PathProgramCache]: Analyzing trace with hash 186284590, now seen corresponding path program 1 times [2024-11-07 00:36:12,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:12,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337419946] [2024-11-07 00:36:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:12,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:12,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:12,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337419946] [2024-11-07 00:36:12,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337419946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:12,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:12,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:12,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717970091] [2024-11-07 00:36:12,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:12,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:12,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:12,982 INFO L87 Difference]: Start difference. First operand 394 states and 589 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:13,012 INFO L93 Difference]: Finished difference Result 1022 states and 1587 transitions. [2024-11-07 00:36:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:13,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-07 00:36:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:13,015 INFO L225 Difference]: With dead ends: 1022 [2024-11-07 00:36:13,015 INFO L226 Difference]: Without dead ends: 692 [2024-11-07 00:36:13,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,019 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 121 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 457 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 00:36:13,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 457 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:13,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-07 00:36:13,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 690. [2024-11-07 00:36:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 1.5341074020319303) internal successors, (1057), 689 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1057 transitions. [2024-11-07 00:36:13,051 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1057 transitions. Word has length 104 [2024-11-07 00:36:13,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:13,052 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1057 transitions. [2024-11-07 00:36:13,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1057 transitions. [2024-11-07 00:36:13,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-07 00:36:13,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:13,057 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] [2024-11-07 00:36:13,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:36:13,057 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:13,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:13,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1107025040, now seen corresponding path program 1 times [2024-11-07 00:36:13,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:13,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431651354] [2024-11-07 00:36:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:13,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:13,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:13,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431651354] [2024-11-07 00:36:13,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431651354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:13,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:13,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:13,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047258452] [2024-11-07 00:36:13,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:13,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:13,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:13,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:13,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,208 INFO L87 Difference]: Start difference. First operand 690 states and 1057 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:13,243 INFO L93 Difference]: Finished difference Result 1878 states and 2939 transitions. [2024-11-07 00:36:13,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:13,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-07 00:36:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:13,252 INFO L225 Difference]: With dead ends: 1878 [2024-11-07 00:36:13,252 INFO L226 Difference]: Without dead ends: 1252 [2024-11-07 00:36:13,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,254 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 453 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 00:36:13,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 453 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:13,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-07 00:36:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2024-11-07 00:36:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.5508406725380304) internal successors, (1937), 1249 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1937 transitions. [2024-11-07 00:36:13,288 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1937 transitions. Word has length 105 [2024-11-07 00:36:13,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:13,289 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1937 transitions. [2024-11-07 00:36:13,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1937 transitions. [2024-11-07 00:36:13,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-07 00:36:13,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:13,292 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] [2024-11-07 00:36:13,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:36:13,292 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:13,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:13,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1750887068, now seen corresponding path program 1 times [2024-11-07 00:36:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:13,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072530668] [2024-11-07 00:36:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:13,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:13,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:13,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072530668] [2024-11-07 00:36:13,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072530668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:13,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:13,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:13,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945752685] [2024-11-07 00:36:13,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:13,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,414 INFO L87 Difference]: Start difference. First operand 1250 states and 1937 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:13,441 INFO L93 Difference]: Finished difference Result 3494 states and 5475 transitions. [2024-11-07 00:36:13,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:13,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-07 00:36:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:13,449 INFO L225 Difference]: With dead ends: 3494 [2024-11-07 00:36:13,449 INFO L226 Difference]: Without dead ends: 2308 [2024-11-07 00:36:13,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,454 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 111 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 449 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 00:36:13,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 449 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2024-11-07 00:36:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2306. [2024-11-07 00:36:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.5553145336225596) internal successors, (3585), 2305 states have internal predecessors, (3585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3585 transitions. [2024-11-07 00:36:13,501 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3585 transitions. Word has length 106 [2024-11-07 00:36:13,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:13,501 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 3585 transitions. [2024-11-07 00:36:13,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3585 transitions. [2024-11-07 00:36:13,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-07 00:36:13,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:13,504 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] [2024-11-07 00:36:13,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:36:13,504 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:13,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:13,505 INFO L85 PathProgramCache]: Analyzing trace with hash -67978193, now seen corresponding path program 1 times [2024-11-07 00:36:13,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:13,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343353432] [2024-11-07 00:36:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:13,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:13,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:13,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343353432] [2024-11-07 00:36:13,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343353432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:13,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:13,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:13,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760739134] [2024-11-07 00:36:13,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:13,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:13,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:13,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:13,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,615 INFO L87 Difference]: Start difference. First operand 2306 states and 3585 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:13,653 INFO L93 Difference]: Finished difference Result 6534 states and 10211 transitions. [2024-11-07 00:36:13,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:13,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-07 00:36:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:13,668 INFO L225 Difference]: With dead ends: 6534 [2024-11-07 00:36:13,668 INFO L226 Difference]: Without dead ends: 4292 [2024-11-07 00:36:13,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,673 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 106 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 445 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 00:36:13,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 445 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2024-11-07 00:36:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4290. [2024-11-07 00:36:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4289 states have (on average 1.5521100489624622) internal successors, (6657), 4289 states have internal predecessors, (6657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 6657 transitions. [2024-11-07 00:36:13,767 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 6657 transitions. Word has length 107 [2024-11-07 00:36:13,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:13,768 INFO L471 AbstractCegarLoop]: Abstraction has 4290 states and 6657 transitions. [2024-11-07 00:36:13,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 6657 transitions. [2024-11-07 00:36:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-07 00:36:13,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:13,769 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] [2024-11-07 00:36:13,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:36:13,769 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:13,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash 827456551, now seen corresponding path program 1 times [2024-11-07 00:36:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:13,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031751828] [2024-11-07 00:36:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:13,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:13,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:13,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031751828] [2024-11-07 00:36:13,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031751828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:13,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:13,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:13,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288707944] [2024-11-07 00:36:13,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:13,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:13,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:13,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,874 INFO L87 Difference]: Start difference. First operand 4290 states and 6657 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:13,932 INFO L93 Difference]: Finished difference Result 12230 states and 19011 transitions. [2024-11-07 00:36:13,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:13,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-07 00:36:13,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:13,957 INFO L225 Difference]: With dead ends: 12230 [2024-11-07 00:36:13,957 INFO L226 Difference]: Without dead ends: 8004 [2024-11-07 00:36:13,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:13,964 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 101 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 441 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 00:36:13,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:13,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2024-11-07 00:36:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 8002. [2024-11-07 00:36:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8002 states, 8001 states have (on average 1.5439320084989376) internal successors, (12353), 8001 states have internal predecessors, (12353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8002 states to 8002 states and 12353 transitions. [2024-11-07 00:36:14,129 INFO L78 Accepts]: Start accepts. Automaton has 8002 states and 12353 transitions. Word has length 108 [2024-11-07 00:36:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:14,129 INFO L471 AbstractCegarLoop]: Abstraction has 8002 states and 12353 transitions. [2024-11-07 00:36:14,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:14,129 INFO L276 IsEmpty]: Start isEmpty. Operand 8002 states and 12353 transitions. [2024-11-07 00:36:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-07 00:36:14,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:14,130 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] [2024-11-07 00:36:14,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:36:14,131 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:14,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:14,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1506711706, now seen corresponding path program 1 times [2024-11-07 00:36:14,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:14,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708125178] [2024-11-07 00:36:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:14,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:14,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:14,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708125178] [2024-11-07 00:36:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708125178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:14,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:14,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065823970] [2024-11-07 00:36:14,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:14,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:14,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:14,424 INFO L87 Difference]: Start difference. First operand 8002 states and 12353 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:15,339 INFO L93 Difference]: Finished difference Result 135010 states and 208977 transitions. [2024-11-07 00:36:15,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:36:15,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-07 00:36:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:15,706 INFO L225 Difference]: With dead ends: 135010 [2024-11-07 00:36:15,706 INFO L226 Difference]: Without dead ends: 127072 [2024-11-07 00:36:15,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-07 00:36:15,781 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 3201 mSDsluCounter, 7450 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 7656 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:15,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3201 Valid, 7656 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127072 states. [2024-11-07 00:36:16,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127072 to 15938. [2024-11-07 00:36:16,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15938 states, 15937 states have (on average 1.5300872184225387) internal successors, (24385), 15937 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15938 states to 15938 states and 24385 transitions. [2024-11-07 00:36:16,847 INFO L78 Accepts]: Start accepts. Automaton has 15938 states and 24385 transitions. Word has length 109 [2024-11-07 00:36:16,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:16,847 INFO L471 AbstractCegarLoop]: Abstraction has 15938 states and 24385 transitions. [2024-11-07 00:36:16,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 15938 states and 24385 transitions. [2024-11-07 00:36:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:36:16,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:16,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:16,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:36:16,849 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:16,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:16,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1467787422, now seen corresponding path program 1 times [2024-11-07 00:36:16,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:16,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38552811] [2024-11-07 00:36:16,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:16,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:16,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:16,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38552811] [2024-11-07 00:36:16,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38552811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:16,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:16,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:16,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216135040] [2024-11-07 00:36:16,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:16,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:16,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:16,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:16,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:16,950 INFO L87 Difference]: Start difference. First operand 15938 states and 24385 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:17,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:17,039 INFO L93 Difference]: Finished difference Result 46278 states and 70595 transitions. [2024-11-07 00:36:17,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:17,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-07 00:36:17,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:17,094 INFO L225 Difference]: With dead ends: 46278 [2024-11-07 00:36:17,094 INFO L226 Difference]: Without dead ends: 30404 [2024-11-07 00:36:17,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:17,119 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 91 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:17,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 347 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30404 states. [2024-11-07 00:36:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30404 to 30146. [2024-11-07 00:36:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30146 states, 30145 states have (on average 1.505291093050257) internal successors, (45377), 30145 states have internal predecessors, (45377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30146 states to 30146 states and 45377 transitions. [2024-11-07 00:36:17,596 INFO L78 Accepts]: Start accepts. Automaton has 30146 states and 45377 transitions. Word has length 111 [2024-11-07 00:36:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:17,596 INFO L471 AbstractCegarLoop]: Abstraction has 30146 states and 45377 transitions. [2024-11-07 00:36:17,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:17,597 INFO L276 IsEmpty]: Start isEmpty. Operand 30146 states and 45377 transitions. [2024-11-07 00:36:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 00:36:17,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:17,598 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] [2024-11-07 00:36:17,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:36:17,598 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:17,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1446784767, now seen corresponding path program 1 times [2024-11-07 00:36:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:17,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020718609] [2024-11-07 00:36:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:18,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:18,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020718609] [2024-11-07 00:36:18,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020718609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:18,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663694509] [2024-11-07 00:36:18,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:18,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:18,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:18,148 INFO L87 Difference]: Start difference. First operand 30146 states and 45377 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:18,624 INFO L93 Difference]: Finished difference Result 60230 states and 90691 transitions. [2024-11-07 00:36:18,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:18,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-07 00:36:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:18,674 INFO L225 Difference]: With dead ends: 60230 [2024-11-07 00:36:18,674 INFO L226 Difference]: Without dead ends: 30148 [2024-11-07 00:36:18,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-07 00:36:18,702 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 820 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:18,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1204 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30148 states. [2024-11-07 00:36:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30148 to 30146. [2024-11-07 00:36:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30146 states, 30145 states have (on average 1.4967988057721016) internal successors, (45121), 30145 states have internal predecessors, (45121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30146 states to 30146 states and 45121 transitions. [2024-11-07 00:36:19,175 INFO L78 Accepts]: Start accepts. Automaton has 30146 states and 45121 transitions. Word has length 111 [2024-11-07 00:36:19,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:19,175 INFO L471 AbstractCegarLoop]: Abstraction has 30146 states and 45121 transitions. [2024-11-07 00:36:19,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:19,175 INFO L276 IsEmpty]: Start isEmpty. Operand 30146 states and 45121 transitions. [2024-11-07 00:36:19,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:19,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:19,176 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] [2024-11-07 00:36:19,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:36:19,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:19,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:19,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2102573667, now seen corresponding path program 1 times [2024-11-07 00:36:19,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:19,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585195666] [2024-11-07 00:36:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:19,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:19,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585195666] [2024-11-07 00:36:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585195666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:19,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:36:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038143096] [2024-11-07 00:36:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:19,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:36:19,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:36:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:19,245 INFO L87 Difference]: Start difference. First operand 30146 states and 45121 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:19,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:19,363 INFO L93 Difference]: Finished difference Result 59337 states and 89415 transitions. [2024-11-07 00:36:19,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:36:19,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:19,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:19,421 INFO L225 Difference]: With dead ends: 59337 [2024-11-07 00:36:19,421 INFO L226 Difference]: Without dead ends: 43462 [2024-11-07 00:36:19,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:36:19,442 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 133 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 473 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 00:36:19,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 473 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43462 states. [2024-11-07 00:36:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43462 to 43460. [2024-11-07 00:36:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43460 states, 43459 states have (on average 1.4948112013622035) internal successors, (64963), 43459 states have internal predecessors, (64963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43460 states to 43460 states and 64963 transitions. [2024-11-07 00:36:20,155 INFO L78 Accepts]: Start accepts. Automaton has 43460 states and 64963 transitions. Word has length 112 [2024-11-07 00:36:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:20,155 INFO L471 AbstractCegarLoop]: Abstraction has 43460 states and 64963 transitions. [2024-11-07 00:36:20,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 43460 states and 64963 transitions. [2024-11-07 00:36:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:20,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:20,156 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] [2024-11-07 00:36:20,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:36:20,156 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:20,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:20,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1902564040, now seen corresponding path program 1 times [2024-11-07 00:36:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:20,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450593174] [2024-11-07 00:36:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:20,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:20,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450593174] [2024-11-07 00:36:20,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450593174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:20,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:20,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:20,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290085426] [2024-11-07 00:36:20,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:20,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:20,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:20,315 INFO L87 Difference]: Start difference. First operand 43460 states and 64963 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:20,905 INFO L93 Difference]: Finished difference Result 116040 states and 173893 transitions. [2024-11-07 00:36:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:20,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:20,995 INFO L225 Difference]: With dead ends: 116040 [2024-11-07 00:36:20,996 INFO L226 Difference]: Without dead ends: 72646 [2024-11-07 00:36:21,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:21,021 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 843 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:21,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 213 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72646 states. [2024-11-07 00:36:21,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72646 to 72644. [2024-11-07 00:36:21,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72644 states, 72643 states have (on average 1.493371694450945) internal successors, (108483), 72643 states have internal predecessors, (108483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72644 states to 72644 states and 108483 transitions. [2024-11-07 00:36:21,902 INFO L78 Accepts]: Start accepts. Automaton has 72644 states and 108483 transitions. Word has length 112 [2024-11-07 00:36:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:21,902 INFO L471 AbstractCegarLoop]: Abstraction has 72644 states and 108483 transitions. [2024-11-07 00:36:21,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 72644 states and 108483 transitions. [2024-11-07 00:36:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:21,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:21,903 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] [2024-11-07 00:36:21,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:36:21,903 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:21,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:21,904 INFO L85 PathProgramCache]: Analyzing trace with hash -156137379, now seen corresponding path program 1 times [2024-11-07 00:36:21,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:21,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084923681] [2024-11-07 00:36:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:22,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:22,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:22,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084923681] [2024-11-07 00:36:22,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084923681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:22,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:22,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:22,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848130975] [2024-11-07 00:36:22,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:22,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:22,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:22,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:22,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:22,014 INFO L87 Difference]: Start difference. First operand 72644 states and 108483 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:22,712 INFO L93 Difference]: Finished difference Result 145222 states and 216900 transitions. [2024-11-07 00:36:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:22,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:22,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:22,797 INFO L225 Difference]: With dead ends: 145222 [2024-11-07 00:36:22,797 INFO L226 Difference]: Without dead ends: 72644 [2024-11-07 00:36:22,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:22,836 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 500 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:22,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 168 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72644 states. [2024-11-07 00:36:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72644 to 72644. [2024-11-07 00:36:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72644 states, 72643 states have (on average 1.484561485621464) internal successors, (107843), 72643 states have internal predecessors, (107843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72644 states to 72644 states and 107843 transitions. [2024-11-07 00:36:23,813 INFO L78 Accepts]: Start accepts. Automaton has 72644 states and 107843 transitions. Word has length 112 [2024-11-07 00:36:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:23,814 INFO L471 AbstractCegarLoop]: Abstraction has 72644 states and 107843 transitions. [2024-11-07 00:36:23,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 72644 states and 107843 transitions. [2024-11-07 00:36:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:23,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:23,815 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] [2024-11-07 00:36:23,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:36:23,815 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:23,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash -919001086, now seen corresponding path program 1 times [2024-11-07 00:36:23,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:23,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607628738] [2024-11-07 00:36:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:23,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:23,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:23,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607628738] [2024-11-07 00:36:23,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607628738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:23,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:23,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:23,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953386581] [2024-11-07 00:36:23,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:23,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:23,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:23,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:23,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:23,949 INFO L87 Difference]: Start difference. First operand 72644 states and 107843 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:24,729 INFO L93 Difference]: Finished difference Result 145222 states and 215620 transitions. [2024-11-07 00:36:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:24,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:24,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:24,818 INFO L225 Difference]: With dead ends: 145222 [2024-11-07 00:36:24,818 INFO L226 Difference]: Without dead ends: 72644 [2024-11-07 00:36:24,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:24,858 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 458 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:24,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 192 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:24,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72644 states. [2024-11-07 00:36:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72644 to 72644. [2024-11-07 00:36:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72644 states, 72643 states have (on average 1.4757512767919827) internal successors, (107203), 72643 states have internal predecessors, (107203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72644 states to 72644 states and 107203 transitions. [2024-11-07 00:36:26,047 INFO L78 Accepts]: Start accepts. Automaton has 72644 states and 107203 transitions. Word has length 112 [2024-11-07 00:36:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:26,048 INFO L471 AbstractCegarLoop]: Abstraction has 72644 states and 107203 transitions. [2024-11-07 00:36:26,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 72644 states and 107203 transitions. [2024-11-07 00:36:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:26,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:26,048 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] [2024-11-07 00:36:26,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:36:26,049 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:26,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1448291587, now seen corresponding path program 1 times [2024-11-07 00:36:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005649083] [2024-11-07 00:36:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:26,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005649083] [2024-11-07 00:36:26,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005649083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:26,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:26,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:26,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783094648] [2024-11-07 00:36:26,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:26,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:26,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:26,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:26,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:26,193 INFO L87 Difference]: Start difference. First operand 72644 states and 107203 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:26,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:26,635 INFO L93 Difference]: Finished difference Result 145222 states and 214340 transitions. [2024-11-07 00:36:26,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:26,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:26,735 INFO L225 Difference]: With dead ends: 145222 [2024-11-07 00:36:26,735 INFO L226 Difference]: Without dead ends: 72644 [2024-11-07 00:36:26,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:26,792 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 468 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:26,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 184 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72644 states. [2024-11-07 00:36:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72644 to 72644. [2024-11-07 00:36:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72644 states, 72643 states have (on average 1.4669410679625015) internal successors, (106563), 72643 states have internal predecessors, (106563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:27,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72644 states to 72644 states and 106563 transitions. [2024-11-07 00:36:27,811 INFO L78 Accepts]: Start accepts. Automaton has 72644 states and 106563 transitions. Word has length 112 [2024-11-07 00:36:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:27,812 INFO L471 AbstractCegarLoop]: Abstraction has 72644 states and 106563 transitions. [2024-11-07 00:36:27,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 72644 states and 106563 transitions. [2024-11-07 00:36:27,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:27,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:27,812 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] [2024-11-07 00:36:27,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:36:27,813 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:27,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -582759198, now seen corresponding path program 1 times [2024-11-07 00:36:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412069577] [2024-11-07 00:36:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:27,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412069577] [2024-11-07 00:36:27,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412069577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:27,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:27,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404015547] [2024-11-07 00:36:27,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:27,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:27,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:27,903 INFO L87 Difference]: Start difference. First operand 72644 states and 106563 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:28,487 INFO L93 Difference]: Finished difference Result 145222 states and 213060 transitions. [2024-11-07 00:36:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:28,568 INFO L225 Difference]: With dead ends: 145222 [2024-11-07 00:36:28,568 INFO L226 Difference]: Without dead ends: 72644 [2024-11-07 00:36:28,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:28,596 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 517 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:28,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 152 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72644 states. [2024-11-07 00:36:29,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72644 to 72644. [2024-11-07 00:36:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72644 states, 72643 states have (on average 1.4581308591330204) internal successors, (105923), 72643 states have internal predecessors, (105923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72644 states to 72644 states and 105923 transitions. [2024-11-07 00:36:29,756 INFO L78 Accepts]: Start accepts. Automaton has 72644 states and 105923 transitions. Word has length 112 [2024-11-07 00:36:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:29,756 INFO L471 AbstractCegarLoop]: Abstraction has 72644 states and 105923 transitions. [2024-11-07 00:36:29,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 72644 states and 105923 transitions. [2024-11-07 00:36:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:29,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:29,761 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] [2024-11-07 00:36:29,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:36:29,761 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:29,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1970790983, now seen corresponding path program 1 times [2024-11-07 00:36:29,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:29,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130329307] [2024-11-07 00:36:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:29,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:29,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:29,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130329307] [2024-11-07 00:36:29,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130329307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:29,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:29,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:36:29,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805665442] [2024-11-07 00:36:29,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:29,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:29,839 INFO L87 Difference]: Start difference. First operand 72644 states and 105923 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:30,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:30,190 INFO L93 Difference]: Finished difference Result 145222 states and 211780 transitions. [2024-11-07 00:36:30,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:30,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:30,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:30,267 INFO L225 Difference]: With dead ends: 145222 [2024-11-07 00:36:30,268 INFO L226 Difference]: Without dead ends: 72644 [2024-11-07 00:36:30,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:36:30,318 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 475 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:30,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 176 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:30,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72644 states. [2024-11-07 00:36:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72644 to 72644. [2024-11-07 00:36:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72644 states, 72643 states have (on average 1.4493206503035392) internal successors, (105283), 72643 states have internal predecessors, (105283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72644 states to 72644 states and 105283 transitions. [2024-11-07 00:36:31,283 INFO L78 Accepts]: Start accepts. Automaton has 72644 states and 105283 transitions. Word has length 112 [2024-11-07 00:36:31,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:31,283 INFO L471 AbstractCegarLoop]: Abstraction has 72644 states and 105283 transitions. [2024-11-07 00:36:31,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 72644 states and 105283 transitions. [2024-11-07 00:36:31,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 00:36:31,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:31,284 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] [2024-11-07 00:36:31,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:36:31,284 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:31,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2098876290, now seen corresponding path program 1 times [2024-11-07 00:36:31,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:31,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607368257] [2024-11-07 00:36:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:31,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:36:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:31,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607368257] [2024-11-07 00:36:31,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607368257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:31,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:31,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:36:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627635574] [2024-11-07 00:36:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:31,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:36:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:31,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:36:31,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:31,779 INFO L87 Difference]: Start difference. First operand 72644 states and 105283 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:31,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:31,939 INFO L93 Difference]: Finished difference Result 74694 states and 108356 transitions. [2024-11-07 00:36:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:36:31,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-07 00:36:31,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:32,017 INFO L225 Difference]: With dead ends: 74694 [2024-11-07 00:36:32,017 INFO L226 Difference]: Without dead ends: 74692 [2024-11-07 00:36:32,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:36:32,041 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:32,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 797 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:36:32,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74692 states. [2024-11-07 00:36:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74692 to 74692. [2024-11-07 00:36:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74692 states, 74691 states have (on average 1.435286714597475) internal successors, (107203), 74691 states have internal predecessors, (107203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74692 states to 74692 states and 107203 transitions. [2024-11-07 00:36:33,114 INFO L78 Accepts]: Start accepts. Automaton has 74692 states and 107203 transitions. Word has length 112 [2024-11-07 00:36:33,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:33,114 INFO L471 AbstractCegarLoop]: Abstraction has 74692 states and 107203 transitions. [2024-11-07 00:36:33,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:33,115 INFO L276 IsEmpty]: Start isEmpty. Operand 74692 states and 107203 transitions. [2024-11-07 00:36:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:36:33,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:33,133 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:33,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:36:33,133 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:33,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash -220886714, now seen corresponding path program 1 times [2024-11-07 00:36:33,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:33,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801250113] [2024-11-07 00:36:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:33,438 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 00:36:33,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:33,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801250113] [2024-11-07 00:36:33,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801250113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:33,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:33,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:33,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139678474] [2024-11-07 00:36:33,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:33,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:33,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:33,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:33,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:33,441 INFO L87 Difference]: Start difference. First operand 74692 states and 107203 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:35,468 INFO L93 Difference]: Finished difference Result 694870 states and 997132 transitions. [2024-11-07 00:36:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:35,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-11-07 00:36:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:36,307 INFO L225 Difference]: With dead ends: 694870 [2024-11-07 00:36:36,307 INFO L226 Difference]: Without dead ends: 620244 [2024-11-07 00:36:36,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:36,385 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 2769 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:36,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 2900 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620244 states. [2024-11-07 00:36:40,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620244 to 149316. [2024-11-07 00:36:40,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149316 states, 149315 states have (on average 1.431195794126511) internal successors, (213699), 149315 states have internal predecessors, (213699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149316 states to 149316 states and 213699 transitions. [2024-11-07 00:36:41,483 INFO L78 Accepts]: Start accepts. Automaton has 149316 states and 213699 transitions. Word has length 151 [2024-11-07 00:36:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:41,484 INFO L471 AbstractCegarLoop]: Abstraction has 149316 states and 213699 transitions. [2024-11-07 00:36:41,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 149316 states and 213699 transitions. [2024-11-07 00:36:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:36:41,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:41,498 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:41,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:36:41,499 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:41,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:41,499 INFO L85 PathProgramCache]: Analyzing trace with hash 846033356, now seen corresponding path program 1 times [2024-11-07 00:36:41,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:41,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648340204] [2024-11-07 00:36:41,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:41,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 00:36:41,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:41,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648340204] [2024-11-07 00:36:41,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648340204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:41,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:41,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:41,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014621786] [2024-11-07 00:36:41,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:41,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:41,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:41,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:41,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:41,680 INFO L87 Difference]: Start difference. First operand 149316 states and 213699 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:43,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:43,720 INFO L93 Difference]: Finished difference Result 769494 states and 1103628 transitions. [2024-11-07 00:36:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:43,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-11-07 00:36:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:45,262 INFO L225 Difference]: With dead ends: 769494 [2024-11-07 00:36:45,262 INFO L226 Difference]: Without dead ends: 694868 [2024-11-07 00:36:45,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:45,331 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 2803 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2803 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:45,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2803 Valid, 2664 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:36:45,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694868 states. [2024-11-07 00:36:50,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694868 to 261316. [2024-11-07 00:36:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261316 states, 261315 states have (on average 1.4268870902933242) internal successors, (372867), 261315 states have internal predecessors, (372867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261316 states to 261316 states and 372867 transitions. [2024-11-07 00:36:51,403 INFO L78 Accepts]: Start accepts. Automaton has 261316 states and 372867 transitions. Word has length 151 [2024-11-07 00:36:51,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:36:51,403 INFO L471 AbstractCegarLoop]: Abstraction has 261316 states and 372867 transitions. [2024-11-07 00:36:51,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 261316 states and 372867 transitions. [2024-11-07 00:36:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:36:51,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:36:51,423 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:36:51,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:36:51,424 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:36:51,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:36:51,428 INFO L85 PathProgramCache]: Analyzing trace with hash 195232210, now seen corresponding path program 1 times [2024-11-07 00:36:51,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:36:51,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255312295] [2024-11-07 00:36:51,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:36:51,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:36:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:36:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 00:36:51,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:36:51,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255312295] [2024-11-07 00:36:51,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255312295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:36:51,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:36:51,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 00:36:51,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660849601] [2024-11-07 00:36:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:36:51,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:36:51,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:36:51,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:36:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:36:51,741 INFO L87 Difference]: Start difference. First operand 261316 states and 372867 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:36:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:36:54,897 INFO L93 Difference]: Finished difference Result 844118 states and 1210124 transitions. [2024-11-07 00:36:54,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:36:54,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-11-07 00:36:54,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:36:56,090 INFO L225 Difference]: With dead ends: 844118 [2024-11-07 00:36:56,090 INFO L226 Difference]: Without dead ends: 769492 [2024-11-07 00:36:56,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:36:56,226 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 3105 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:36:56,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 2549 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:36:56,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769492 states.