./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.p+lhb-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.6.ufo.UNBOUNDED.pals.c.p+lhb-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', '1cf988187e51661749a7431d3b54c72cef46dbc57db121ef5e55cfa0bf7b27cc'] 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.6.ufo.UNBOUNDED.pals.c.p+lhb-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 1cf988187e51661749a7431d3b54c72cef46dbc57db121ef5e55cfa0bf7b27cc --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:34:11,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:34:11,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:34:11,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:34:11,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:34:11,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:34:11,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:34:11,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:34:11,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:34:11,879 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:34:11,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:34:11,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:34:11,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:34:11,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:34:11,880 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:34:11,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:34:11,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:34:11,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:34:11,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:34:11,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:34:11,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:34:11,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:34:11,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:34:11,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:34:11,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:34:11,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:34:11,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:34:11,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:34:11,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:34:11,884 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 -> 1cf988187e51661749a7431d3b54c72cef46dbc57db121ef5e55cfa0bf7b27cc [2024-11-07 00:34:12,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:34:12,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:34:12,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:34:12,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:34:12,138 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:34:12,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-07 00:34:13,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:34:13,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:34:13,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-07 00:34:13,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0495686e/8a3be5c746444b119270e2ea3754b9b9/FLAGada537794 [2024-11-07 00:34:13,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c0495686e/8a3be5c746444b119270e2ea3754b9b9 [2024-11-07 00:34:13,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:34:13,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:34:13,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:34:13,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:34:13,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:34:13,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:34:13" (1/1) ... [2024-11-07 00:34:13,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6848547a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:13, skipping insertion in model container [2024-11-07 00:34:13,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:34:13" (1/1) ... [2024-11-07 00:34:13,844 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:34:14,098 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.6.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[13915,13928] [2024-11-07 00:34:14,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:34:14,179 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:34:14,250 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.6.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[13915,13928] [2024-11-07 00:34:14,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:34:14,301 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:34:14,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14 WrapperNode [2024-11-07 00:34:14,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:34:14,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:34:14,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:34:14,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:34:14,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,387 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1263 [2024-11-07 00:34:14,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:34:14,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:34:14,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:34:14,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:34:14,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,408 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,440 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 00:34:14,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:34:14,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:34:14,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:34:14,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:34:14,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (1/1) ... [2024-11-07 00:34:14,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:34:14,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:34:14,529 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 00:34:14,536 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 00:34:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:34:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:34:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:34:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:34:14,709 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:34:14,711 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:34:15,763 INFO L? ?]: Removed 170 outVars from TransFormulas that were not future-live. [2024-11-07 00:34:15,763 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:34:15,787 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:34:15,791 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:34:15,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:34:15 BoogieIcfgContainer [2024-11-07 00:34:15,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:34:15,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:34:15,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:34:15,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:34:15,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:34:13" (1/3) ... [2024-11-07 00:34:15,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a802dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:34:15, skipping insertion in model container [2024-11-07 00:34:15,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:34:14" (2/3) ... [2024-11-07 00:34:15,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a802dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:34:15, skipping insertion in model container [2024-11-07 00:34:15,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:34:15" (3/3) ... [2024-11-07 00:34:15,802 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-07 00:34:15,814 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:34:15,814 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:34:15,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:34:15,878 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;@7e0845b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:34:15,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:34:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 326 states, 324 states have (on average 1.6604938271604939) internal successors, (538), 325 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-07 00:34:15,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:15,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:15,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:15,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:15,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2137284112, now seen corresponding path program 1 times [2024-11-07 00:34:15,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:15,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676409868] [2024-11-07 00:34:15,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:15,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:16,466 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 00:34:16,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:16,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676409868] [2024-11-07 00:34:16,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676409868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:16,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:16,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:34:16,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678556716] [2024-11-07 00:34:16,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:16,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:34:16,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:34:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:34:16,501 INFO L87 Difference]: Start difference. First operand has 326 states, 324 states have (on average 1.6604938271604939) internal successors, (538), 325 states have internal predecessors, (538), 0 states have call successors, (0), 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 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:16,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:16,650 INFO L93 Difference]: Finished difference Result 610 states and 994 transitions. [2024-11-07 00:34:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:34:16,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-07 00:34:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:16,665 INFO L225 Difference]: With dead ends: 610 [2024-11-07 00:34:16,666 INFO L226 Difference]: Without dead ends: 323 [2024-11-07 00:34:16,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:34:16,674 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 0 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:16,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1559 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:34:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-07 00:34:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-07 00:34:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.5248447204968945) internal successors, (491), 322 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 491 transitions. [2024-11-07 00:34:16,717 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 491 transitions. Word has length 119 [2024-11-07 00:34:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:16,718 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 491 transitions. [2024-11-07 00:34:16,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 491 transitions. [2024-11-07 00:34:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-07 00:34:16,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:16,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:16,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:34:16,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:16,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:16,725 INFO L85 PathProgramCache]: Analyzing trace with hash 236422477, now seen corresponding path program 1 times [2024-11-07 00:34:16,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:16,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313791367] [2024-11-07 00:34:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:16,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:16,943 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 00:34:16,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:16,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313791367] [2024-11-07 00:34:16,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313791367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:16,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:16,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:16,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385684131] [2024-11-07 00:34:16,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:16,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:16,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:16,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:16,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:16,946 INFO L87 Difference]: Start difference. First operand 323 states and 491 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:17,000 INFO L93 Difference]: Finished difference Result 754 states and 1180 transitions. [2024-11-07 00:34:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:17,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2024-11-07 00:34:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:17,004 INFO L225 Difference]: With dead ends: 754 [2024-11-07 00:34:17,006 INFO L226 Difference]: Without dead ends: 492 [2024-11-07 00:34:17,008 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 00:34:17,010 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 309 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:17,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 874 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:34:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-07 00:34:17,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 490. [2024-11-07 00:34:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.5460122699386503) internal successors, (756), 489 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 756 transitions. [2024-11-07 00:34:17,042 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 756 transitions. Word has length 158 [2024-11-07 00:34:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:17,042 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 756 transitions. [2024-11-07 00:34:17,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 756 transitions. [2024-11-07 00:34:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-07 00:34:17,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:17,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:17,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:34:17,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:17,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash -629719765, now seen corresponding path program 1 times [2024-11-07 00:34:17,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:17,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412380120] [2024-11-07 00:34:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:17,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:17,215 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 00:34:17,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:17,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412380120] [2024-11-07 00:34:17,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412380120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:17,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:17,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:17,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137861554] [2024-11-07 00:34:17,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:17,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:17,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:17,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:17,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:17,217 INFO L87 Difference]: Start difference. First operand 490 states and 756 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:17,262 INFO L93 Difference]: Finished difference Result 1217 states and 1917 transitions. [2024-11-07 00:34:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:17,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-07 00:34:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:17,267 INFO L225 Difference]: With dead ends: 1217 [2024-11-07 00:34:17,267 INFO L226 Difference]: Without dead ends: 794 [2024-11-07 00:34:17,268 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 00:34:17,268 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 295 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:17,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 952 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:34:17,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-07 00:34:17,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 792. [2024-11-07 00:34:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.5600505689001265) internal successors, (1234), 791 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1234 transitions. [2024-11-07 00:34:17,302 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1234 transitions. Word has length 160 [2024-11-07 00:34:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:17,303 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1234 transitions. [2024-11-07 00:34:17,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1234 transitions. [2024-11-07 00:34:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 00:34:17,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:17,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:17,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:34:17,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:17,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1119650555, now seen corresponding path program 1 times [2024-11-07 00:34:17,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:17,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576752363] [2024-11-07 00:34:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:17,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:17,443 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 00:34:17,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:17,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576752363] [2024-11-07 00:34:17,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576752363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:17,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:17,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:17,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835603511] [2024-11-07 00:34:17,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:17,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:17,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:17,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:17,447 INFO L87 Difference]: Start difference. First operand 792 states and 1234 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:17,505 INFO L93 Difference]: Finished difference Result 2049 states and 3235 transitions. [2024-11-07 00:34:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:17,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-07 00:34:17,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:17,517 INFO L225 Difference]: With dead ends: 2049 [2024-11-07 00:34:17,517 INFO L226 Difference]: Without dead ends: 1330 [2024-11-07 00:34:17,518 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 00:34:17,519 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 283 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:17,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 834 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:34:17,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2024-11-07 00:34:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1328. [2024-11-07 00:34:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 1.5659382064807836) internal successors, (2078), 1327 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 2078 transitions. [2024-11-07 00:34:17,576 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 2078 transitions. Word has length 162 [2024-11-07 00:34:17,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:17,578 INFO L471 AbstractCegarLoop]: Abstraction has 1328 states and 2078 transitions. [2024-11-07 00:34:17,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 2078 transitions. [2024-11-07 00:34:17,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-07 00:34:17,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:17,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:17,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:34:17,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:17,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash -679886853, now seen corresponding path program 1 times [2024-11-07 00:34:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:17,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653942668] [2024-11-07 00:34:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:17,733 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 00:34:17,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:17,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653942668] [2024-11-07 00:34:17,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653942668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:17,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:17,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:17,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405734495] [2024-11-07 00:34:17,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:17,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:17,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:17,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:17,736 INFO L87 Difference]: Start difference. First operand 1328 states and 2078 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:17,795 INFO L93 Difference]: Finished difference Result 3511 states and 5535 transitions. [2024-11-07 00:34:17,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-07 00:34:17,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:17,806 INFO L225 Difference]: With dead ends: 3511 [2024-11-07 00:34:17,806 INFO L226 Difference]: Without dead ends: 2262 [2024-11-07 00:34:17,809 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 00:34:17,810 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 270 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:17,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 814 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:34:17,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2024-11-07 00:34:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2260. [2024-11-07 00:34:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 2259 states have (on average 1.5644090305444887) internal successors, (3534), 2259 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3534 transitions. [2024-11-07 00:34:17,897 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3534 transitions. Word has length 164 [2024-11-07 00:34:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:17,897 INFO L471 AbstractCegarLoop]: Abstraction has 2260 states and 3534 transitions. [2024-11-07 00:34:17,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3534 transitions. [2024-11-07 00:34:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-07 00:34:17,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:17,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:17,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:34:17,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:17,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash -416723443, now seen corresponding path program 1 times [2024-11-07 00:34:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:17,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122073997] [2024-11-07 00:34:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:17,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:18,038 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 00:34:18,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:18,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122073997] [2024-11-07 00:34:18,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122073997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:18,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:18,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:18,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704840295] [2024-11-07 00:34:18,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:18,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:18,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:18,042 INFO L87 Difference]: Start difference. First operand 2260 states and 3534 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:18,103 INFO L93 Difference]: Finished difference Result 6017 states and 9439 transitions. [2024-11-07 00:34:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:18,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-07 00:34:18,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:18,124 INFO L225 Difference]: With dead ends: 6017 [2024-11-07 00:34:18,125 INFO L226 Difference]: Without dead ends: 3842 [2024-11-07 00:34:18,128 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 00:34:18,129 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 256 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:18,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 892 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:34:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-11-07 00:34:18,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3840. [2024-11-07 00:34:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3840 states, 3839 states have (on average 1.5561344100026049) internal successors, (5974), 3839 states have internal predecessors, (5974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3840 states and 5974 transitions. [2024-11-07 00:34:18,264 INFO L78 Accepts]: Start accepts. Automaton has 3840 states and 5974 transitions. Word has length 166 [2024-11-07 00:34:18,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:18,265 INFO L471 AbstractCegarLoop]: Abstraction has 3840 states and 5974 transitions. [2024-11-07 00:34:18,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3840 states and 5974 transitions. [2024-11-07 00:34:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 00:34:18,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:18,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:18,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:34:18,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:18,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:18,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1890921675, now seen corresponding path program 1 times [2024-11-07 00:34:18,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:18,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473191742] [2024-11-07 00:34:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:18,591 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 00:34:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473191742] [2024-11-07 00:34:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473191742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:18,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922760351] [2024-11-07 00:34:18,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:18,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:18,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:18,594 INFO L87 Difference]: Start difference. First operand 3840 states and 5974 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:19,623 INFO L93 Difference]: Finished difference Result 39953 states and 62069 transitions. [2024-11-07 00:34:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 00:34:19,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-07 00:34:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:19,749 INFO L225 Difference]: With dead ends: 39953 [2024-11-07 00:34:19,749 INFO L226 Difference]: Without dead ends: 36204 [2024-11-07 00:34:19,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:34:19,764 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 4539 mSDsluCounter, 6426 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 7536 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:19,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4539 Valid, 7536 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:34:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36204 states. [2024-11-07 00:34:20,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36204 to 7624. [2024-11-07 00:34:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7624 states, 7623 states have (on average 1.5337793519611702) internal successors, (11692), 7623 states have internal predecessors, (11692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7624 states to 7624 states and 11692 transitions. [2024-11-07 00:34:20,464 INFO L78 Accepts]: Start accepts. Automaton has 7624 states and 11692 transitions. Word has length 168 [2024-11-07 00:34:20,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:20,465 INFO L471 AbstractCegarLoop]: Abstraction has 7624 states and 11692 transitions. [2024-11-07 00:34:20,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7624 states and 11692 transitions. [2024-11-07 00:34:20,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-07 00:34:20,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:20,483 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:20,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:34:20,483 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:20,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:20,484 INFO L85 PathProgramCache]: Analyzing trace with hash -938279451, now seen corresponding path program 1 times [2024-11-07 00:34:20,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:20,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049235119] [2024-11-07 00:34:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:20,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:20,601 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 00:34:20,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049235119] [2024-11-07 00:34:20,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049235119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:20,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:20,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:20,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215257637] [2024-11-07 00:34:20,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:20,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:20,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:20,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:20,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:20,604 INFO L87 Difference]: Start difference. First operand 7624 states and 11692 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:20,705 INFO L93 Difference]: Finished difference Result 21275 states and 32593 transitions. [2024-11-07 00:34:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-07 00:34:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:20,779 INFO L225 Difference]: With dead ends: 21275 [2024-11-07 00:34:20,779 INFO L226 Difference]: Without dead ends: 13700 [2024-11-07 00:34:20,787 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 00:34:20,788 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 303 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:20,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1083 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:34:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13700 states. [2024-11-07 00:34:20,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13700 to 13698. [2024-11-07 00:34:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13698 states, 13697 states have (on average 1.5202599109294006) internal successors, (20823), 13697 states have internal predecessors, (20823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13698 states to 13698 states and 20823 transitions. [2024-11-07 00:34:21,039 INFO L78 Accepts]: Start accepts. Automaton has 13698 states and 20823 transitions. Word has length 171 [2024-11-07 00:34:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:21,039 INFO L471 AbstractCegarLoop]: Abstraction has 13698 states and 20823 transitions. [2024-11-07 00:34:21,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand 13698 states and 20823 transitions. [2024-11-07 00:34:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-07 00:34:21,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:21,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:21,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:34:21,166 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:21,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1870536310, now seen corresponding path program 1 times [2024-11-07 00:34:21,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:21,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903995410] [2024-11-07 00:34:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:21,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:21,688 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 00:34:21,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:21,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903995410] [2024-11-07 00:34:21,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903995410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:21,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:21,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:21,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473517705] [2024-11-07 00:34:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:21,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:21,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:21,692 INFO L87 Difference]: Start difference. First operand 13698 states and 20823 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:22,202 INFO L93 Difference]: Finished difference Result 27313 states and 41547 transitions. [2024-11-07 00:34:22,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:22,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-07 00:34:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:22,231 INFO L225 Difference]: With dead ends: 27313 [2024-11-07 00:34:22,231 INFO L226 Difference]: Without dead ends: 13700 [2024-11-07 00:34:22,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:34:22,245 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 2038 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:22,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 2072 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:34:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13700 states. [2024-11-07 00:34:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13700 to 13698. [2024-11-07 00:34:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13698 states, 13697 states have (on average 1.5061692341388626) internal successors, (20630), 13697 states have internal predecessors, (20630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13698 states to 13698 states and 20630 transitions. [2024-11-07 00:34:22,576 INFO L78 Accepts]: Start accepts. Automaton has 13698 states and 20630 transitions. Word has length 172 [2024-11-07 00:34:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:22,576 INFO L471 AbstractCegarLoop]: Abstraction has 13698 states and 20630 transitions. [2024-11-07 00:34:22,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:22,577 INFO L276 IsEmpty]: Start isEmpty. Operand 13698 states and 20630 transitions. [2024-11-07 00:34:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-07 00:34:22,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:22,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:22,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:34:22,606 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:22,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash 380481047, now seen corresponding path program 1 times [2024-11-07 00:34:22,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:22,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336068868] [2024-11-07 00:34:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:22,779 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 00:34:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:22,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336068868] [2024-11-07 00:34:22,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336068868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:22,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287899006] [2024-11-07 00:34:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:22,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:22,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:22,781 INFO L87 Difference]: Start difference. First operand 13698 states and 20630 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:22,923 INFO L93 Difference]: Finished difference Result 32651 states and 49121 transitions. [2024-11-07 00:34:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:22,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-07 00:34:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:22,965 INFO L225 Difference]: With dead ends: 32651 [2024-11-07 00:34:22,966 INFO L226 Difference]: Without dead ends: 19036 [2024-11-07 00:34:22,986 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 00:34:22,987 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 320 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:22,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 727 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:34:22,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19036 states. [2024-11-07 00:34:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19036 to 18970. [2024-11-07 00:34:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18970 states, 18969 states have (on average 1.4816279192366493) internal successors, (28105), 18969 states have internal predecessors, (28105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18970 states to 18970 states and 28105 transitions. [2024-11-07 00:34:23,379 INFO L78 Accepts]: Start accepts. Automaton has 18970 states and 28105 transitions. Word has length 172 [2024-11-07 00:34:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:23,379 INFO L471 AbstractCegarLoop]: Abstraction has 18970 states and 28105 transitions. [2024-11-07 00:34:23,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 18970 states and 28105 transitions. [2024-11-07 00:34:23,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:34:23,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:23,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:23,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:34:23,414 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:23,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 257757422, now seen corresponding path program 1 times [2024-11-07 00:34:23,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:23,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820646946] [2024-11-07 00:34:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:23,521 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 00:34:23,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:23,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820646946] [2024-11-07 00:34:23,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820646946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:23,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:23,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:34:23,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976215389] [2024-11-07 00:34:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:23,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:34:23,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:34:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:34:23,523 INFO L87 Difference]: Start difference. First operand 18970 states and 28105 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:23,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:23,970 INFO L93 Difference]: Finished difference Result 55252 states and 81722 transitions. [2024-11-07 00:34:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:34:23,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:34:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:24,046 INFO L225 Difference]: With dead ends: 55252 [2024-11-07 00:34:24,047 INFO L226 Difference]: Without dead ends: 37637 [2024-11-07 00:34:24,076 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 00:34:24,078 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 336 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:24,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 516 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:34:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37637 states. [2024-11-07 00:34:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37637 to 37635. [2024-11-07 00:34:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37635 states, 37634 states have (on average 1.4718605516288463) internal successors, (55392), 37634 states have internal predecessors, (55392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37635 states to 37635 states and 55392 transitions. [2024-11-07 00:34:24,582 INFO L78 Accepts]: Start accepts. Automaton has 37635 states and 55392 transitions. Word has length 173 [2024-11-07 00:34:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:24,583 INFO L471 AbstractCegarLoop]: Abstraction has 37635 states and 55392 transitions. [2024-11-07 00:34:24,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand 37635 states and 55392 transitions. [2024-11-07 00:34:24,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:34:24,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:24,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:24,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:34:24,626 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:24,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:24,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1541809188, now seen corresponding path program 1 times [2024-11-07 00:34:24,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:24,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530993937] [2024-11-07 00:34:24,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:24,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:34:25,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:25,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530993937] [2024-11-07 00:34:25,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530993937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:25,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:25,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51164206] [2024-11-07 00:34:25,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:25,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:25,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:25,101 INFO L87 Difference]: Start difference. First operand 37635 states and 55392 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:26,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:26,051 INFO L93 Difference]: Finished difference Result 204364 states and 299608 transitions. [2024-11-07 00:34:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:34:26,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:26,404 INFO L225 Difference]: With dead ends: 204364 [2024-11-07 00:34:26,405 INFO L226 Difference]: Without dead ends: 182666 [2024-11-07 00:34:26,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:34:26,469 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 3424 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3424 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:26,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3424 Valid, 2958 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:34:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182666 states. [2024-11-07 00:34:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182666 to 69790. [2024-11-07 00:34:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69790 states, 69789 states have (on average 1.4621931823066672) internal successors, (102045), 69789 states have internal predecessors, (102045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:28,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69790 states to 69790 states and 102045 transitions. [2024-11-07 00:34:28,249 INFO L78 Accepts]: Start accepts. Automaton has 69790 states and 102045 transitions. Word has length 173 [2024-11-07 00:34:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:28,249 INFO L471 AbstractCegarLoop]: Abstraction has 69790 states and 102045 transitions. [2024-11-07 00:34:28,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 69790 states and 102045 transitions. [2024-11-07 00:34:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:34:28,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:28,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:28,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:34:28,321 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:28,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash -629339990, now seen corresponding path program 1 times [2024-11-07 00:34:28,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:28,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202047740] [2024-11-07 00:34:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:28,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:28,613 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 00:34:28,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:28,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202047740] [2024-11-07 00:34:28,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202047740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:28,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:28,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520129637] [2024-11-07 00:34:28,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:28,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:28,615 INFO L87 Difference]: Start difference. First operand 69790 states and 102045 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:29,919 INFO L93 Difference]: Finished difference Result 230732 states and 337736 transitions. [2024-11-07 00:34:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:34:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:30,322 INFO L225 Difference]: With dead ends: 230732 [2024-11-07 00:34:30,322 INFO L226 Difference]: Without dead ends: 209034 [2024-11-07 00:34:30,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:34:30,404 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 3370 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:30,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 3149 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:34:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209034 states. [2024-11-07 00:34:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209034 to 110622. [2024-11-07 00:34:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110622 states, 110621 states have (on average 1.4542537131286104) internal successors, (160871), 110621 states have internal predecessors, (160871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:32,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110622 states to 110622 states and 160871 transitions. [2024-11-07 00:34:32,791 INFO L78 Accepts]: Start accepts. Automaton has 110622 states and 160871 transitions. Word has length 173 [2024-11-07 00:34:32,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:32,791 INFO L471 AbstractCegarLoop]: Abstraction has 110622 states and 160871 transitions. [2024-11-07 00:34:32,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 110622 states and 160871 transitions. [2024-11-07 00:34:32,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:34:32,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:32,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:32,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:34:32,934 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:32,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash 100119728, now seen corresponding path program 1 times [2024-11-07 00:34:32,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:32,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144450535] [2024-11-07 00:34:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:33,392 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 00:34:33,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:33,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144450535] [2024-11-07 00:34:33,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144450535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:33,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:33,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:33,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293863586] [2024-11-07 00:34:33,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:33,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:33,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:33,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:33,395 INFO L87 Difference]: Start difference. First operand 110622 states and 160871 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:34,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:34,484 INFO L93 Difference]: Finished difference Result 254156 states and 371496 transitions. [2024-11-07 00:34:34,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:34,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:34:34,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:34,736 INFO L225 Difference]: With dead ends: 254156 [2024-11-07 00:34:34,736 INFO L226 Difference]: Without dead ends: 232458 [2024-11-07 00:34:34,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:34:34,793 INFO L432 NwaCegarLoop]: 994 mSDtfsCounter, 3024 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:34,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 3752 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:34:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232458 states. [2024-11-07 00:34:36,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232458 to 137424. [2024-11-07 00:34:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137424 states, 137423 states have (on average 1.452442458685955) internal successors, (199599), 137423 states have internal predecessors, (199599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137424 states to 137424 states and 199599 transitions. [2024-11-07 00:34:37,427 INFO L78 Accepts]: Start accepts. Automaton has 137424 states and 199599 transitions. Word has length 173 [2024-11-07 00:34:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:37,427 INFO L471 AbstractCegarLoop]: Abstraction has 137424 states and 199599 transitions. [2024-11-07 00:34:37,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 137424 states and 199599 transitions. [2024-11-07 00:34:37,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:34:37,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:37,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:37,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:34:37,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:37,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash 834995998, now seen corresponding path program 1 times [2024-11-07 00:34:37,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:37,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704222717] [2024-11-07 00:34:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:37,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:37,845 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 00:34:37,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:37,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704222717] [2024-11-07 00:34:37,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704222717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:37,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:37,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:37,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440554802] [2024-11-07 00:34:37,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:37,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:37,847 INFO L87 Difference]: Start difference. First operand 137424 states and 199599 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:39,289 INFO L93 Difference]: Finished difference Result 282284 states and 412264 transitions. [2024-11-07 00:34:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:34:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:39,575 INFO L225 Difference]: With dead ends: 282284 [2024-11-07 00:34:39,575 INFO L226 Difference]: Without dead ends: 260586 [2024-11-07 00:34:39,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:34:39,642 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 2837 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:39,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 4522 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:34:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260586 states. [2024-11-07 00:34:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260586 to 166404. [2024-11-07 00:34:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166404 states, 166403 states have (on average 1.452311556882989) internal successors, (241669), 166403 states have internal predecessors, (241669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166404 states to 166404 states and 241669 transitions. [2024-11-07 00:34:42,654 INFO L78 Accepts]: Start accepts. Automaton has 166404 states and 241669 transitions. Word has length 173 [2024-11-07 00:34:42,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:42,654 INFO L471 AbstractCegarLoop]: Abstraction has 166404 states and 241669 transitions. [2024-11-07 00:34:42,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:42,654 INFO L276 IsEmpty]: Start isEmpty. Operand 166404 states and 241669 transitions. [2024-11-07 00:34:42,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:34:42,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:42,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:42,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:34:42,870 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:42,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:42,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1278496360, now seen corresponding path program 1 times [2024-11-07 00:34:42,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:42,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280358647] [2024-11-07 00:34:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:34:43,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:43,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280358647] [2024-11-07 00:34:43,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280358647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:43,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:43,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:43,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107404493] [2024-11-07 00:34:43,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:43,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:43,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:43,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:43,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:43,187 INFO L87 Difference]: Start difference. First operand 166404 states and 241669 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:44,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:44,543 INFO L93 Difference]: Finished difference Result 311580 states and 454796 transitions. [2024-11-07 00:34:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:44,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:34:44,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:44,875 INFO L225 Difference]: With dead ends: 311580 [2024-11-07 00:34:44,875 INFO L226 Difference]: Without dead ends: 289882 [2024-11-07 00:34:44,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:34:44,962 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 3269 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 4175 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:44,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3269 Valid, 4175 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:34:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289882 states. [2024-11-07 00:34:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289882 to 195954. [2024-11-07 00:34:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195954 states, 195953 states have (on average 1.452373783509311) internal successors, (284597), 195953 states have internal predecessors, (284597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195954 states to 195954 states and 284597 transitions. [2024-11-07 00:34:48,883 INFO L78 Accepts]: Start accepts. Automaton has 195954 states and 284597 transitions. Word has length 173 [2024-11-07 00:34:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:48,883 INFO L471 AbstractCegarLoop]: Abstraction has 195954 states and 284597 transitions. [2024-11-07 00:34:48,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 195954 states and 284597 transitions. [2024-11-07 00:34:49,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 00:34:49,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:49,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:49,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:34:49,055 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:49,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1227013924, now seen corresponding path program 1 times [2024-11-07 00:34:49,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:49,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600356037] [2024-11-07 00:34:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:49,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:49,703 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 00:34:49,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:49,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600356037] [2024-11-07 00:34:49,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600356037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:49,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:49,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:34:49,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364081894] [2024-11-07 00:34:49,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:49,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:34:49,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:34:49,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:34:49,705 INFO L87 Difference]: Start difference. First operand 195954 states and 284597 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:50,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:50,619 INFO L93 Difference]: Finished difference Result 325386 states and 475368 transitions. [2024-11-07 00:34:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:34:50,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 00:34:50,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:50,965 INFO L225 Difference]: With dead ends: 325386 [2024-11-07 00:34:50,966 INFO L226 Difference]: Without dead ends: 310696 [2024-11-07 00:34:51,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:34:51,070 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 3380 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:51,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 3111 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:34:51,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310696 states. [2024-11-07 00:34:54,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310696 to 216768. [2024-11-07 00:34:54,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216768 states, 216767 states have (on average 1.4546171695876218) internal successors, (315313), 216767 states have internal predecessors, (315313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216768 states to 216768 states and 315313 transitions. [2024-11-07 00:34:55,280 INFO L78 Accepts]: Start accepts. Automaton has 216768 states and 315313 transitions. Word has length 174 [2024-11-07 00:34:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:55,280 INFO L471 AbstractCegarLoop]: Abstraction has 216768 states and 315313 transitions. [2024-11-07 00:34:55,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 216768 states and 315313 transitions. [2024-11-07 00:34:55,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 00:34:55,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:55,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:55,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:34:55,510 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:55,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1226091636, now seen corresponding path program 1 times [2024-11-07 00:34:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266096652] [2024-11-07 00:34:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:55,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:55,654 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 00:34:55,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:55,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266096652] [2024-11-07 00:34:55,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266096652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:55,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:55,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:34:55,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750354268] [2024-11-07 00:34:55,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:55,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:34:55,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:55,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:34:55,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:34:55,656 INFO L87 Difference]: Start difference. First operand 216768 states and 315313 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:56,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:34:56,879 INFO L93 Difference]: Finished difference Result 286928 states and 419120 transitions. [2024-11-07 00:34:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:34:56,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2024-11-07 00:34:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:34:56,997 INFO L225 Difference]: With dead ends: 286928 [2024-11-07 00:34:56,997 INFO L226 Difference]: Without dead ends: 109138 [2024-11-07 00:34:57,101 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 00:34:57,102 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 1228 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:34:57,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 240 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:34:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109138 states. [2024-11-07 00:34:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109138 to 109138. [2024-11-07 00:34:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109138 states, 109137 states have (on average 1.451478417035469) internal successors, (158410), 109137 states have internal predecessors, (158410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109138 states to 109138 states and 158410 transitions. [2024-11-07 00:34:59,079 INFO L78 Accepts]: Start accepts. Automaton has 109138 states and 158410 transitions. Word has length 175 [2024-11-07 00:34:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:34:59,079 INFO L471 AbstractCegarLoop]: Abstraction has 109138 states and 158410 transitions. [2024-11-07 00:34:59,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:34:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 109138 states and 158410 transitions. [2024-11-07 00:34:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 00:34:59,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:34:59,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:34:59,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:34:59,200 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:34:59,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:34:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash -676547640, now seen corresponding path program 1 times [2024-11-07 00:34:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:34:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938490604] [2024-11-07 00:34:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:34:59,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:34:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:34:59,380 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 00:34:59,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:34:59,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938490604] [2024-11-07 00:34:59,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938490604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:34:59,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:34:59,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:34:59,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493780123] [2024-11-07 00:34:59,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:34:59,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:34:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:34:59,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:34:59,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:34:59,383 INFO L87 Difference]: Start difference. First operand 109138 states and 158410 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:00,167 INFO L93 Difference]: Finished difference Result 218211 states and 316748 transitions. [2024-11-07 00:35:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:00,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2024-11-07 00:35:00,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:00,290 INFO L225 Difference]: With dead ends: 218211 [2024-11-07 00:35:00,290 INFO L226 Difference]: Without dead ends: 109138 [2024-11-07 00:35:00,366 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 00:35:00,366 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 1177 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:00,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 264 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:35:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109138 states.