./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 1bc6aa00437fa9caa5f3417d996588d430ef5fa0daab57def01c3e44b34b1cac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:54:16,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:54:16,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:54:16,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:54:16,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:54:17,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:54:17,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:54:17,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:54:17,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:54:17,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:54:17,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:54:17,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:54:17,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:54:17,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:54:17,025 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:54:17,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:54:17,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:54:17,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:54:17,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:54:17,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:54:17,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:54:17,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:54:17,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:54:17,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:54:17,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:54:17,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:54:17,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:54:17,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:54:17,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:54:17,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:54:17,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:54:17,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:54:17,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:54:17,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:54:17,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:54:17,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:54:17,031 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bc6aa00437fa9caa5f3417d996588d430ef5fa0daab57def01c3e44b34b1cac [2024-11-18 14:54:17,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:54:17,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:54:17,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:54:17,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:54:17,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:54:17,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-18 14:54:18,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:54:18,674 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:54:18,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-18 14:54:18,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fea9af35/ba2b8ad8291a4d3197bbc65310726cdf/FLAG14f5cfd2f [2024-11-18 14:54:19,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fea9af35/ba2b8ad8291a4d3197bbc65310726cdf [2024-11-18 14:54:19,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:54:19,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:54:19,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:54:19,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:54:19,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:54:19,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c74406e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19, skipping insertion in model container [2024-11-18 14:54:19,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:54:19,357 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14164,14177] [2024-11-18 14:54:19,373 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14811,14824] [2024-11-18 14:54:19,392 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16044,16057] [2024-11-18 14:54:19,409 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17104,17117] [2024-11-18 14:54:19,451 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25495,25508] [2024-11-18 14:54:19,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:54:19,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:54:19,552 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14164,14177] [2024-11-18 14:54:19,557 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14811,14824] [2024-11-18 14:54:19,564 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16044,16057] [2024-11-18 14:54:19,569 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17104,17117] [2024-11-18 14:54:19,603 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25495,25508] [2024-11-18 14:54:19,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:54:19,648 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:54:19,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19 WrapperNode [2024-11-18 14:54:19,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:54:19,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:54:19,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:54:19,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:54:19,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,723 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1636 [2024-11-18 14:54:19,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:54:19,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:54:19,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:54:19,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:54:19,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,764 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]. [2024-11-18 14:54:19,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:54:19,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:54:19,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:54:19,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:54:19,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (1/1) ... [2024-11-18 14:54:19,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:54:19,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:54:19,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:54:19,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:54:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:54:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:54:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:54:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:54:20,019 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:54:20,021 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:54:21,037 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-18 14:54:21,037 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:54:21,060 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:54:21,061 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 14:54:21,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:21 BoogieIcfgContainer [2024-11-18 14:54:21,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:54:21,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:54:21,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:54:21,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:54:21,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:54:19" (1/3) ... [2024-11-18 14:54:21,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d26f1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:54:21, skipping insertion in model container [2024-11-18 14:54:21,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:54:19" (2/3) ... [2024-11-18 14:54:21,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d26f1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:54:21, skipping insertion in model container [2024-11-18 14:54:21,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:54:21" (3/3) ... [2024-11-18 14:54:21,068 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-18 14:54:21,081 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:54:21,082 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-18 14:54:21,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:54:21,150 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;@771f3536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:54:21,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-18 14:54:21,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 371 states have (on average 1.8274932614555257) internal successors, (678), 376 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 14:54:21,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:21,171 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] [2024-11-18 14:54:21,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:21,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:21,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1808275345, now seen corresponding path program 1 times [2024-11-18 14:54:21,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:21,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956033281] [2024-11-18 14:54:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:21,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:21,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:21,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956033281] [2024-11-18 14:54:21,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956033281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:21,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:21,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414900584] [2024-11-18 14:54:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:21,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:21,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:21,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:21,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:21,688 INFO L87 Difference]: Start difference. First operand has 377 states, 371 states have (on average 1.8274932614555257) internal successors, (678), 376 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:21,858 INFO L93 Difference]: Finished difference Result 683 states and 1217 transitions. [2024-11-18 14:54:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:21,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-11-18 14:54:21,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:21,877 INFO L225 Difference]: With dead ends: 683 [2024-11-18 14:54:21,878 INFO L226 Difference]: Without dead ends: 546 [2024-11-18 14:54:21,881 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 [2024-11-18 14:54:21,884 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 391 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:21,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1207 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-18 14:54:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 544. [2024-11-18 14:54:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 539 states have (on average 1.4805194805194806) internal successors, (798), 543 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:21,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 798 transitions. [2024-11-18 14:54:21,934 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 798 transitions. Word has length 139 [2024-11-18 14:54:21,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:21,935 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 798 transitions. [2024-11-18 14:54:21,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:21,936 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 798 transitions. [2024-11-18 14:54:21,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 14:54:21,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:21,938 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] [2024-11-18 14:54:21,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:54:21,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:21,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash 715131696, now seen corresponding path program 1 times [2024-11-18 14:54:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:21,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73899668] [2024-11-18 14:54:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:22,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:22,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73899668] [2024-11-18 14:54:22,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73899668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:22,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:22,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:22,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921838512] [2024-11-18 14:54:22,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:22,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:22,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:22,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:22,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:22,151 INFO L87 Difference]: Start difference. First operand 544 states and 798 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:22,255 INFO L93 Difference]: Finished difference Result 1093 states and 1658 transitions. [2024-11-18 14:54:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:22,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-11-18 14:54:22,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:22,264 INFO L225 Difference]: With dead ends: 1093 [2024-11-18 14:54:22,264 INFO L226 Difference]: Without dead ends: 902 [2024-11-18 14:54:22,265 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 [2024-11-18 14:54:22,266 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 312 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:22,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 979 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:22,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-18 14:54:22,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 900. [2024-11-18 14:54:22,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 895 states have (on average 1.5027932960893855) internal successors, (1345), 899 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1345 transitions. [2024-11-18 14:54:22,304 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1345 transitions. Word has length 139 [2024-11-18 14:54:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:22,305 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1345 transitions. [2024-11-18 14:54:22,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:22,305 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1345 transitions. [2024-11-18 14:54:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 14:54:22,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:22,311 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] [2024-11-18 14:54:22,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:54:22,311 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:22,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:22,312 INFO L85 PathProgramCache]: Analyzing trace with hash 714700720, now seen corresponding path program 1 times [2024-11-18 14:54:22,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:22,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860879089] [2024-11-18 14:54:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:22,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:22,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860879089] [2024-11-18 14:54:22,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860879089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:22,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:22,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:22,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484343587] [2024-11-18 14:54:22,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:22,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:22,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:22,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:22,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:22,797 INFO L87 Difference]: Start difference. First operand 900 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:22,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:22,930 INFO L93 Difference]: Finished difference Result 4365 states and 6502 transitions. [2024-11-18 14:54:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:22,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-11-18 14:54:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:22,941 INFO L225 Difference]: With dead ends: 4365 [2024-11-18 14:54:22,942 INFO L226 Difference]: Without dead ends: 3474 [2024-11-18 14:54:22,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:22,946 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 1532 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:22,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 2414 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3474 states. [2024-11-18 14:54:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 1703. [2024-11-18 14:54:22,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1698 states have (on average 1.4888103651354534) internal successors, (2528), 1702 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:22,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2528 transitions. [2024-11-18 14:54:22,982 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2528 transitions. Word has length 139 [2024-11-18 14:54:22,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:22,982 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 2528 transitions. [2024-11-18 14:54:22,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:22,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2528 transitions. [2024-11-18 14:54:22,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 14:54:22,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:22,985 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] [2024-11-18 14:54:22,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:54:22,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:22,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:22,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1630009316, now seen corresponding path program 1 times [2024-11-18 14:54:22,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:22,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868818640] [2024-11-18 14:54:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:22,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:23,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:23,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868818640] [2024-11-18 14:54:23,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868818640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:23,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:23,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:23,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715996886] [2024-11-18 14:54:23,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:23,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:23,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:23,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:23,073 INFO L87 Difference]: Start difference. First operand 1703 states and 2528 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:23,095 INFO L93 Difference]: Finished difference Result 3380 states and 5013 transitions. [2024-11-18 14:54:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:23,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-11-18 14:54:23,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:23,100 INFO L225 Difference]: With dead ends: 3380 [2024-11-18 14:54:23,100 INFO L226 Difference]: Without dead ends: 1705 [2024-11-18 14:54:23,101 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 [2024-11-18 14:54:23,102 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 0 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:23,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1070 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:23,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-18 14:54:23,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2024-11-18 14:54:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1700 states have (on average 1.488235294117647) internal successors, (2530), 1704 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2530 transitions. [2024-11-18 14:54:23,124 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2530 transitions. Word has length 140 [2024-11-18 14:54:23,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:23,125 INFO L471 AbstractCegarLoop]: Abstraction has 1705 states and 2530 transitions. [2024-11-18 14:54:23,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2530 transitions. [2024-11-18 14:54:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:54:23,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:23,127 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] [2024-11-18 14:54:23,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:54:23,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:23,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:23,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1573794978, now seen corresponding path program 1 times [2024-11-18 14:54:23,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:23,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124560753] [2024-11-18 14:54:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:23,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124560753] [2024-11-18 14:54:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124560753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:23,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:23,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:23,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478047648] [2024-11-18 14:54:23,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:23,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:23,229 INFO L87 Difference]: Start difference. First operand 1705 states and 2530 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:23,279 INFO L93 Difference]: Finished difference Result 4483 states and 6649 transitions. [2024-11-18 14:54:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:23,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-18 14:54:23,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:23,287 INFO L225 Difference]: With dead ends: 4483 [2024-11-18 14:54:23,287 INFO L226 Difference]: Without dead ends: 2956 [2024-11-18 14:54:23,289 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 [2024-11-18 14:54:23,291 INFO L432 NwaCegarLoop]: 794 mSDtfsCounter, 465 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:23,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1287 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2024-11-18 14:54:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2916. [2024-11-18 14:54:23,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2911 states have (on average 1.4671934043284094) internal successors, (4271), 2915 states have internal predecessors, (4271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4271 transitions. [2024-11-18 14:54:23,332 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4271 transitions. Word has length 141 [2024-11-18 14:54:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:23,332 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4271 transitions. [2024-11-18 14:54:23,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4271 transitions. [2024-11-18 14:54:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:54:23,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:23,335 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] [2024-11-18 14:54:23,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:54:23,335 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:23,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:23,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1469323167, now seen corresponding path program 1 times [2024-11-18 14:54:23,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:23,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733114220] [2024-11-18 14:54:23,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:23,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:23,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733114220] [2024-11-18 14:54:23,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733114220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:23,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007920905] [2024-11-18 14:54:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:23,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:23,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:23,750 INFO L87 Difference]: Start difference. First operand 2916 states and 4271 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:23,786 INFO L93 Difference]: Finished difference Result 5253 states and 7712 transitions. [2024-11-18 14:54:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:23,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-18 14:54:23,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:23,794 INFO L225 Difference]: With dead ends: 5253 [2024-11-18 14:54:23,796 INFO L226 Difference]: Without dead ends: 2505 [2024-11-18 14:54:23,799 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 [2024-11-18 14:54:23,802 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 25 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:23,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1688 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:23,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-11-18 14:54:23,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2505. [2024-11-18 14:54:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2500 states have (on average 1.4656) internal successors, (3664), 2504 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3664 transitions. [2024-11-18 14:54:23,845 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3664 transitions. Word has length 141 [2024-11-18 14:54:23,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:23,846 INFO L471 AbstractCegarLoop]: Abstraction has 2505 states and 3664 transitions. [2024-11-18 14:54:23,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3664 transitions. [2024-11-18 14:54:23,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 14:54:23,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:23,848 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] [2024-11-18 14:54:23,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:54:23,849 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:23,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:23,849 INFO L85 PathProgramCache]: Analyzing trace with hash 419999342, now seen corresponding path program 1 times [2024-11-18 14:54:23,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:23,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825874167] [2024-11-18 14:54:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:23,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825874167] [2024-11-18 14:54:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825874167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:23,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:23,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:23,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767296213] [2024-11-18 14:54:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:23,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:23,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:23,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:23,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:23,935 INFO L87 Difference]: Start difference. First operand 2505 states and 3664 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:24,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:24,145 INFO L93 Difference]: Finished difference Result 6986 states and 10274 transitions. [2024-11-18 14:54:24,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:24,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-11-18 14:54:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:24,158 INFO L225 Difference]: With dead ends: 6986 [2024-11-18 14:54:24,158 INFO L226 Difference]: Without dead ends: 4801 [2024-11-18 14:54:24,161 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 [2024-11-18 14:54:24,162 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 390 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:24,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 917 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:54:24,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4801 states. [2024-11-18 14:54:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4801 to 4761. [2024-11-18 14:54:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 4756 states have (on average 1.4598402018502943) internal successors, (6943), 4760 states have internal predecessors, (6943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:24,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 6943 transitions. [2024-11-18 14:54:24,284 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 6943 transitions. Word has length 147 [2024-11-18 14:54:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:24,284 INFO L471 AbstractCegarLoop]: Abstraction has 4761 states and 6943 transitions. [2024-11-18 14:54:24,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 6943 transitions. [2024-11-18 14:54:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 14:54:24,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:24,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:24,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:54:24,289 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:24,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:24,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2037635117, now seen corresponding path program 1 times [2024-11-18 14:54:24,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:24,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546776941] [2024-11-18 14:54:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:24,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:25,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:25,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546776941] [2024-11-18 14:54:25,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546776941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:25,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:25,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 14:54:25,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252512576] [2024-11-18 14:54:25,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:25,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 14:54:25,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 14:54:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:54:25,122 INFO L87 Difference]: Start difference. First operand 4761 states and 6943 transitions. Second operand has 13 states, 13 states have (on average 11.307692307692308) internal successors, (147), 13 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:25,962 INFO L93 Difference]: Finished difference Result 8070 states and 11968 transitions. [2024-11-18 14:54:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 14:54:25,963 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.307692307692308) internal successors, (147), 13 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-11-18 14:54:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:25,978 INFO L225 Difference]: With dead ends: 8070 [2024-11-18 14:54:25,979 INFO L226 Difference]: Without dead ends: 6478 [2024-11-18 14:54:25,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2024-11-18 14:54:25,983 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 3166 mSDsluCounter, 4468 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 5014 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:25,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 5014 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:54:25,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6478 states. [2024-11-18 14:54:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6478 to 5220. [2024-11-18 14:54:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5220 states, 5215 states have (on average 1.4452540747842761) internal successors, (7537), 5219 states have internal predecessors, (7537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5220 states to 5220 states and 7537 transitions. [2024-11-18 14:54:26,076 INFO L78 Accepts]: Start accepts. Automaton has 5220 states and 7537 transitions. Word has length 147 [2024-11-18 14:54:26,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:26,076 INFO L471 AbstractCegarLoop]: Abstraction has 5220 states and 7537 transitions. [2024-11-18 14:54:26,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.307692307692308) internal successors, (147), 13 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5220 states and 7537 transitions. [2024-11-18 14:54:26,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 14:54:26,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:26,081 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] [2024-11-18 14:54:26,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:54:26,082 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:26,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:26,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1951696513, now seen corresponding path program 1 times [2024-11-18 14:54:26,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:26,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887820506] [2024-11-18 14:54:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:26,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887820506] [2024-11-18 14:54:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887820506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:26,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:26,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050713617] [2024-11-18 14:54:26,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:26,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:26,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:26,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:26,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:26,401 INFO L87 Difference]: Start difference. First operand 5220 states and 7537 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:26,507 INFO L93 Difference]: Finished difference Result 13723 states and 19760 transitions. [2024-11-18 14:54:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:26,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-11-18 14:54:26,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:26,528 INFO L225 Difference]: With dead ends: 13723 [2024-11-18 14:54:26,528 INFO L226 Difference]: Without dead ends: 8522 [2024-11-18 14:54:26,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:26,536 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 465 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:26,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 2155 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8522 states. [2024-11-18 14:54:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8522 to 8492. [2024-11-18 14:54:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8492 states, 8487 states have (on average 1.423824673029339) internal successors, (12084), 8491 states have internal predecessors, (12084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8492 states to 8492 states and 12084 transitions. [2024-11-18 14:54:26,656 INFO L78 Accepts]: Start accepts. Automaton has 8492 states and 12084 transitions. Word has length 147 [2024-11-18 14:54:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:26,656 INFO L471 AbstractCegarLoop]: Abstraction has 8492 states and 12084 transitions. [2024-11-18 14:54:26,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 8492 states and 12084 transitions. [2024-11-18 14:54:26,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-18 14:54:26,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:26,663 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] [2024-11-18 14:54:26,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:54:26,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:26,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:26,664 INFO L85 PathProgramCache]: Analyzing trace with hash -969376451, now seen corresponding path program 1 times [2024-11-18 14:54:26,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:26,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791527035] [2024-11-18 14:54:26,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:26,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:26,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:26,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791527035] [2024-11-18 14:54:26,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791527035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:26,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:26,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:26,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541923455] [2024-11-18 14:54:26,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:26,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:26,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:26,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:26,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:26,761 INFO L87 Difference]: Start difference. First operand 8492 states and 12084 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:26,845 INFO L93 Difference]: Finished difference Result 22810 states and 32417 transitions. [2024-11-18 14:54:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2024-11-18 14:54:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:26,873 INFO L225 Difference]: With dead ends: 22810 [2024-11-18 14:54:26,874 INFO L226 Difference]: Without dead ends: 14842 [2024-11-18 14:54:26,885 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 [2024-11-18 14:54:26,886 INFO L432 NwaCegarLoop]: 875 mSDtfsCounter, 455 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:26,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1357 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14842 states. [2024-11-18 14:54:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14842 to 14816. [2024-11-18 14:54:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14816 states, 14811 states have (on average 1.402403618931875) internal successors, (20771), 14815 states have internal predecessors, (20771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14816 states to 14816 states and 20771 transitions. [2024-11-18 14:54:27,097 INFO L78 Accepts]: Start accepts. Automaton has 14816 states and 20771 transitions. Word has length 149 [2024-11-18 14:54:27,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:27,097 INFO L471 AbstractCegarLoop]: Abstraction has 14816 states and 20771 transitions. [2024-11-18 14:54:27,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 14816 states and 20771 transitions. [2024-11-18 14:54:27,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-18 14:54:27,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:27,109 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] [2024-11-18 14:54:27,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:54:27,109 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:27,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1817938944, now seen corresponding path program 1 times [2024-11-18 14:54:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:27,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519727339] [2024-11-18 14:54:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:27,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:27,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:27,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519727339] [2024-11-18 14:54:27,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519727339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:27,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:27,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:27,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645583155] [2024-11-18 14:54:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:27,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:27,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:27,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:27,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:27,420 INFO L87 Difference]: Start difference. First operand 14816 states and 20771 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:27,472 INFO L93 Difference]: Finished difference Result 24733 states and 34624 transitions. [2024-11-18 14:54:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:27,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2024-11-18 14:54:27,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:27,489 INFO L225 Difference]: With dead ends: 24733 [2024-11-18 14:54:27,489 INFO L226 Difference]: Without dead ends: 13164 [2024-11-18 14:54:27,501 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 [2024-11-18 14:54:27,502 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 19 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:27,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1668 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:27,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-18 14:54:27,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-18 14:54:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13159 states have (on average 1.400866327228513) internal successors, (18434), 13163 states have internal predecessors, (18434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 18434 transitions. [2024-11-18 14:54:27,693 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 18434 transitions. Word has length 149 [2024-11-18 14:54:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:27,694 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 18434 transitions. [2024-11-18 14:54:27,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 18434 transitions. [2024-11-18 14:54:27,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-18 14:54:27,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:27,704 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] [2024-11-18 14:54:27,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:54:27,705 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:27,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1252810675, now seen corresponding path program 1 times [2024-11-18 14:54:27,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:27,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134687183] [2024-11-18 14:54:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:27,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:28,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:28,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134687183] [2024-11-18 14:54:28,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134687183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:28,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:28,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:54:28,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088405770] [2024-11-18 14:54:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:28,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:54:28,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:28,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:54:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:54:28,007 INFO L87 Difference]: Start difference. First operand 13164 states and 18434 transitions. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:28,238 INFO L93 Difference]: Finished difference Result 17852 states and 25949 transitions. [2024-11-18 14:54:28,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:28,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2024-11-18 14:54:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:28,256 INFO L225 Difference]: With dead ends: 17852 [2024-11-18 14:54:28,256 INFO L226 Difference]: Without dead ends: 13166 [2024-11-18 14:54:28,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:54:28,264 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 2438 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:28,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 1246 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:28,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13166 states. [2024-11-18 14:54:28,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13166 to 13164. [2024-11-18 14:54:28,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13159 states have (on average 1.3947108442890797) internal successors, (18353), 13163 states have internal predecessors, (18353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 18353 transitions. [2024-11-18 14:54:28,468 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 18353 transitions. Word has length 155 [2024-11-18 14:54:28,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:28,469 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 18353 transitions. [2024-11-18 14:54:28,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:28,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 18353 transitions. [2024-11-18 14:54:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-18 14:54:28,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:28,482 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] [2024-11-18 14:54:28,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:54:28,482 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:28,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash -103309827, now seen corresponding path program 1 times [2024-11-18 14:54:28,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441290651] [2024-11-18 14:54:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:28,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:28,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441290651] [2024-11-18 14:54:28,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441290651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:28,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:28,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908692651] [2024-11-18 14:54:28,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:28,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:28,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:28,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:28,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:28,823 INFO L87 Difference]: Start difference. First operand 13164 states and 18353 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:28,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:28,997 INFO L93 Difference]: Finished difference Result 63928 states and 88795 transitions. [2024-11-18 14:54:28,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:28,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2024-11-18 14:54:28,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:29,072 INFO L225 Difference]: With dead ends: 63928 [2024-11-18 14:54:29,072 INFO L226 Difference]: Without dead ends: 50803 [2024-11-18 14:54:29,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:29,099 INFO L432 NwaCegarLoop]: 922 mSDtfsCounter, 1491 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:29,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2375 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:29,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50803 states. [2024-11-18 14:54:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50803 to 25389. [2024-11-18 14:54:29,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25389 states, 25384 states have (on average 1.3759060825716987) internal successors, (34926), 25388 states have internal predecessors, (34926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25389 states to 25389 states and 34926 transitions. [2024-11-18 14:54:29,551 INFO L78 Accepts]: Start accepts. Automaton has 25389 states and 34926 transitions. Word has length 155 [2024-11-18 14:54:29,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:29,551 INFO L471 AbstractCegarLoop]: Abstraction has 25389 states and 34926 transitions. [2024-11-18 14:54:29,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 25389 states and 34926 transitions. [2024-11-18 14:54:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 14:54:29,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:29,571 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] [2024-11-18 14:54:29,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:54:29,572 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:29,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash 425314407, now seen corresponding path program 1 times [2024-11-18 14:54:29,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:29,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135945284] [2024-11-18 14:54:29,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:29,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:29,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:29,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:29,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135945284] [2024-11-18 14:54:29,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135945284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:29,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801058596] [2024-11-18 14:54:29,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:29,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:29,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:29,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:29,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:29,637 INFO L87 Difference]: Start difference. First operand 25389 states and 34926 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:29,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:29,806 INFO L93 Difference]: Finished difference Result 50677 states and 69721 transitions. [2024-11-18 14:54:29,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:29,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2024-11-18 14:54:29,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:29,841 INFO L225 Difference]: With dead ends: 50677 [2024-11-18 14:54:29,841 INFO L226 Difference]: Without dead ends: 25395 [2024-11-18 14:54:29,864 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 [2024-11-18 14:54:29,865 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:29,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1062 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25395 states. [2024-11-18 14:54:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25395 to 25395. [2024-11-18 14:54:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25395 states, 25390 states have (on average 1.3758172508861757) internal successors, (34932), 25394 states have internal predecessors, (34932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25395 states to 25395 states and 34932 transitions. [2024-11-18 14:54:30,151 INFO L78 Accepts]: Start accepts. Automaton has 25395 states and 34932 transitions. Word has length 156 [2024-11-18 14:54:30,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:30,151 INFO L471 AbstractCegarLoop]: Abstraction has 25395 states and 34932 transitions. [2024-11-18 14:54:30,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:30,152 INFO L276 IsEmpty]: Start isEmpty. Operand 25395 states and 34932 transitions. [2024-11-18 14:54:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-18 14:54:30,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:30,170 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] [2024-11-18 14:54:30,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:54:30,171 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:30,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:30,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1678824924, now seen corresponding path program 1 times [2024-11-18 14:54:30,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:30,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264897806] [2024-11-18 14:54:30,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:30,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:30,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264897806] [2024-11-18 14:54:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264897806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898195605] [2024-11-18 14:54:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:30,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:30,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:30,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:30,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:30,483 INFO L87 Difference]: Start difference. First operand 25395 states and 34932 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:30,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:30,731 INFO L93 Difference]: Finished difference Result 123034 states and 168589 transitions. [2024-11-18 14:54:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:30,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2024-11-18 14:54:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:30,833 INFO L225 Difference]: With dead ends: 123034 [2024-11-18 14:54:30,834 INFO L226 Difference]: Without dead ends: 97703 [2024-11-18 14:54:30,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:30,879 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 1473 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:30,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 2270 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:30,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97703 states. [2024-11-18 14:54:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97703 to 48901. [2024-11-18 14:54:31,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48901 states, 48896 states have (on average 1.3557755235602094) internal successors, (66292), 48900 states have internal predecessors, (66292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:32,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48901 states to 48901 states and 66292 transitions. [2024-11-18 14:54:32,038 INFO L78 Accepts]: Start accepts. Automaton has 48901 states and 66292 transitions. Word has length 157 [2024-11-18 14:54:32,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:32,040 INFO L471 AbstractCegarLoop]: Abstraction has 48901 states and 66292 transitions. [2024-11-18 14:54:32,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 48901 states and 66292 transitions. [2024-11-18 14:54:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-18 14:54:32,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:32,079 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] [2024-11-18 14:54:32,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:54:32,079 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:32,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:32,080 INFO L85 PathProgramCache]: Analyzing trace with hash -79696538, now seen corresponding path program 1 times [2024-11-18 14:54:32,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:32,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188256662] [2024-11-18 14:54:32,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:32,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:32,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:32,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188256662] [2024-11-18 14:54:32,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188256662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:32,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:32,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:32,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843921699] [2024-11-18 14:54:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:32,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:32,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:32,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:32,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:32,304 INFO L87 Difference]: Start difference. First operand 48901 states and 66292 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) [2024-11-18 14:54:32,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:32,462 INFO L93 Difference]: Finished difference Result 96780 states and 131355 transitions. [2024-11-18 14:54:32,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:32,462 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 [2024-11-18 14:54:32,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:32,514 INFO L225 Difference]: With dead ends: 96780 [2024-11-18 14:54:32,514 INFO L226 Difference]: Without dead ends: 48915 [2024-11-18 14:54:32,550 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 [2024-11-18 14:54:32,551 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:32,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1062 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48915 states. [2024-11-18 14:54:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48915 to 48915. [2024-11-18 14:54:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48915 states, 48910 states have (on average 1.355673686362707) internal successors, (66306), 48914 states have internal predecessors, (66306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:33,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48915 states to 48915 states and 66306 transitions. [2024-11-18 14:54:33,440 INFO L78 Accepts]: Start accepts. Automaton has 48915 states and 66306 transitions. Word has length 158 [2024-11-18 14:54:33,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:33,440 INFO L471 AbstractCegarLoop]: Abstraction has 48915 states and 66306 transitions. [2024-11-18 14:54:33,440 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) [2024-11-18 14:54:33,440 INFO L276 IsEmpty]: Start isEmpty. Operand 48915 states and 66306 transitions. [2024-11-18 14:54:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-18 14:54:33,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:33,470 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] [2024-11-18 14:54:33,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:54:33,470 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:33,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:33,470 INFO L85 PathProgramCache]: Analyzing trace with hash 60078395, now seen corresponding path program 1 times [2024-11-18 14:54:33,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:33,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481205358] [2024-11-18 14:54:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:33,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:33,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481205358] [2024-11-18 14:54:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481205358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:33,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:33,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:33,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734539064] [2024-11-18 14:54:33,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:33,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:33,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:33,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:33,815 INFO L87 Difference]: Start difference. First operand 48915 states and 66306 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:34,058 INFO L93 Difference]: Finished difference Result 86465 states and 117048 transitions. [2024-11-18 14:54:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-18 14:54:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:34,099 INFO L225 Difference]: With dead ends: 86465 [2024-11-18 14:54:34,099 INFO L226 Difference]: Without dead ends: 37608 [2024-11-18 14:54:34,121 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 [2024-11-18 14:54:34,122 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 12 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:34,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1649 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37608 states. [2024-11-18 14:54:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37608 to 37608. [2024-11-18 14:54:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37608 states, 37603 states have (on average 1.3513549450841689) internal successors, (50815), 37607 states have internal predecessors, (50815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37608 states to 37608 states and 50815 transitions. [2024-11-18 14:54:34,672 INFO L78 Accepts]: Start accepts. Automaton has 37608 states and 50815 transitions. Word has length 159 [2024-11-18 14:54:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:34,672 INFO L471 AbstractCegarLoop]: Abstraction has 37608 states and 50815 transitions. [2024-11-18 14:54:34,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:34,672 INFO L276 IsEmpty]: Start isEmpty. Operand 37608 states and 50815 transitions. [2024-11-18 14:54:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-18 14:54:34,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:34,692 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] [2024-11-18 14:54:34,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:54:34,692 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:34,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash -829166184, now seen corresponding path program 1 times [2024-11-18 14:54:34,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:34,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473284174] [2024-11-18 14:54:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:34,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:35,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:35,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473284174] [2024-11-18 14:54:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473284174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859641506] [2024-11-18 14:54:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:35,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:35,130 INFO L87 Difference]: Start difference. First operand 37608 states and 50815 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:35,273 INFO L93 Difference]: Finished difference Result 59919 states and 81065 transitions. [2024-11-18 14:54:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:35,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-18 14:54:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:35,309 INFO L225 Difference]: With dead ends: 59919 [2024-11-18 14:54:35,310 INFO L226 Difference]: Without dead ends: 33772 [2024-11-18 14:54:35,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:35,334 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 465 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:35,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1466 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33772 states. [2024-11-18 14:54:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33772 to 33543. [2024-11-18 14:54:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33543 states, 33538 states have (on average 1.3481125887053491) internal successors, (45213), 33542 states have internal predecessors, (45213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33543 states to 33543 states and 45213 transitions. [2024-11-18 14:54:35,737 INFO L78 Accepts]: Start accepts. Automaton has 33543 states and 45213 transitions. Word has length 165 [2024-11-18 14:54:35,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:35,737 INFO L471 AbstractCegarLoop]: Abstraction has 33543 states and 45213 transitions. [2024-11-18 14:54:35,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:35,737 INFO L276 IsEmpty]: Start isEmpty. Operand 33543 states and 45213 transitions. [2024-11-18 14:54:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:54:35,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:35,754 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] [2024-11-18 14:54:35,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:54:35,754 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:35,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash -798666505, now seen corresponding path program 1 times [2024-11-18 14:54:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:35,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973277593] [2024-11-18 14:54:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:36,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973277593] [2024-11-18 14:54:36,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973277593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:36,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:36,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:36,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144283417] [2024-11-18 14:54:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:36,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:36,108 INFO L87 Difference]: Start difference. First operand 33543 states and 45213 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:36,285 INFO L93 Difference]: Finished difference Result 43016 states and 59863 transitions. [2024-11-18 14:54:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:36,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 14:54:36,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:36,321 INFO L225 Difference]: With dead ends: 43016 [2024-11-18 14:54:36,322 INFO L226 Difference]: Without dead ends: 30722 [2024-11-18 14:54:36,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:36,340 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 598 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:36,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 974 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:36,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30722 states. [2024-11-18 14:54:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30722 to 30720. [2024-11-18 14:54:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30720 states, 30715 states have (on average 1.320332085300342) internal successors, (40554), 30719 states have internal predecessors, (40554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30720 states to 30720 states and 40554 transitions. [2024-11-18 14:54:36,782 INFO L78 Accepts]: Start accepts. Automaton has 30720 states and 40554 transitions. Word has length 167 [2024-11-18 14:54:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:36,782 INFO L471 AbstractCegarLoop]: Abstraction has 30720 states and 40554 transitions. [2024-11-18 14:54:36,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:36,782 INFO L276 IsEmpty]: Start isEmpty. Operand 30720 states and 40554 transitions. [2024-11-18 14:54:36,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:54:36,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:36,804 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] [2024-11-18 14:54:36,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:54:36,804 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:36,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:36,805 INFO L85 PathProgramCache]: Analyzing trace with hash -12964090, now seen corresponding path program 1 times [2024-11-18 14:54:36,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:36,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391269136] [2024-11-18 14:54:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:36,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:37,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:37,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391269136] [2024-11-18 14:54:37,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391269136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:37,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:37,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:37,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568431620] [2024-11-18 14:54:37,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:37,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:37,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:37,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:37,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:37,166 INFO L87 Difference]: Start difference. First operand 30720 states and 40554 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:37,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:37,319 INFO L93 Difference]: Finished difference Result 61829 states and 81584 transitions. [2024-11-18 14:54:37,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:37,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 14:54:37,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:37,352 INFO L225 Difference]: With dead ends: 61829 [2024-11-18 14:54:37,352 INFO L226 Difference]: Without dead ends: 31512 [2024-11-18 14:54:37,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:37,377 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 462 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2184 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:37,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 2184 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31512 states. [2024-11-18 14:54:37,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31512 to 31077. [2024-11-18 14:54:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31077 states, 31072 states have (on average 1.318196446961895) internal successors, (40959), 31076 states have internal predecessors, (40959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:38,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31077 states to 31077 states and 40959 transitions. [2024-11-18 14:54:38,005 INFO L78 Accepts]: Start accepts. Automaton has 31077 states and 40959 transitions. Word has length 167 [2024-11-18 14:54:38,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:38,005 INFO L471 AbstractCegarLoop]: Abstraction has 31077 states and 40959 transitions. [2024-11-18 14:54:38,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 31077 states and 40959 transitions. [2024-11-18 14:54:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:54:38,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:38,022 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] [2024-11-18 14:54:38,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:54:38,023 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:38,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1973164691, now seen corresponding path program 1 times [2024-11-18 14:54:38,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:38,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956791610] [2024-11-18 14:54:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:38,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:38,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:38,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956791610] [2024-11-18 14:54:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956791610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:38,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:38,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713976495] [2024-11-18 14:54:38,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:38,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:38,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:38,094 INFO L87 Difference]: Start difference. First operand 31077 states and 40959 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:38,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:38,393 INFO L93 Difference]: Finished difference Result 79161 states and 105809 transitions. [2024-11-18 14:54:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 14:54:38,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:38,455 INFO L225 Difference]: With dead ends: 79161 [2024-11-18 14:54:38,456 INFO L226 Difference]: Without dead ends: 56520 [2024-11-18 14:54:38,484 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 [2024-11-18 14:54:38,484 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 407 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:38,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 937 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:54:38,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56520 states. [2024-11-18 14:54:39,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56520 to 56092. [2024-11-18 14:54:39,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56092 states, 56087 states have (on average 1.3183447144614617) internal successors, (73942), 56091 states have internal predecessors, (73942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56092 states to 56092 states and 73942 transitions. [2024-11-18 14:54:39,162 INFO L78 Accepts]: Start accepts. Automaton has 56092 states and 73942 transitions. Word has length 167 [2024-11-18 14:54:39,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:39,163 INFO L471 AbstractCegarLoop]: Abstraction has 56092 states and 73942 transitions. [2024-11-18 14:54:39,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 56092 states and 73942 transitions. [2024-11-18 14:54:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:54:39,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:39,192 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] [2024-11-18 14:54:39,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:54:39,192 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:39,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1204570280, now seen corresponding path program 1 times [2024-11-18 14:54:39,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:39,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192163370] [2024-11-18 14:54:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:39,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:39,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:39,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:39,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192163370] [2024-11-18 14:54:39,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192163370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:39,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:39,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:54:39,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389204482] [2024-11-18 14:54:39,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:39,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:54:39,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:54:39,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:54:39,610 INFO L87 Difference]: Start difference. First operand 56092 states and 73942 transitions. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:39,950 INFO L93 Difference]: Finished difference Result 98802 states and 133534 transitions. [2024-11-18 14:54:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 14:54:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:40,041 INFO L225 Difference]: With dead ends: 98802 [2024-11-18 14:54:40,041 INFO L226 Difference]: Without dead ends: 78444 [2024-11-18 14:54:40,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:54:40,078 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 2384 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:40,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 1187 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78444 states. [2024-11-18 14:54:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78444 to 78442. [2024-11-18 14:54:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78442 states, 78437 states have (on average 1.3030712546374799) internal successors, (102209), 78441 states have internal predecessors, (102209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:41,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78442 states to 78442 states and 102209 transitions. [2024-11-18 14:54:41,184 INFO L78 Accepts]: Start accepts. Automaton has 78442 states and 102209 transitions. Word has length 167 [2024-11-18 14:54:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:41,184 INFO L471 AbstractCegarLoop]: Abstraction has 78442 states and 102209 transitions. [2024-11-18 14:54:41,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 78442 states and 102209 transitions. [2024-11-18 14:54:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:54:41,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:41,235 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] [2024-11-18 14:54:41,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:54:41,236 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:41,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash -326669391, now seen corresponding path program 1 times [2024-11-18 14:54:41,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583799385] [2024-11-18 14:54:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583799385] [2024-11-18 14:54:41,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583799385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:41,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:41,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:54:41,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867605091] [2024-11-18 14:54:41,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:41,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:54:41,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:54:41,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:54:41,827 INFO L87 Difference]: Start difference. First operand 78442 states and 102209 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:42,151 INFO L93 Difference]: Finished difference Result 103465 states and 135628 transitions. [2024-11-18 14:54:42,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:42,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 14:54:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:42,196 INFO L225 Difference]: With dead ends: 103465 [2024-11-18 14:54:42,196 INFO L226 Difference]: Without dead ends: 43277 [2024-11-18 14:54:42,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:54:42,234 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1418 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:42,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 731 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43277 states. [2024-11-18 14:54:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43277 to 43277. [2024-11-18 14:54:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43277 states, 43272 states have (on average 1.2866287668700314) internal successors, (55675), 43276 states have internal predecessors, (55675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:42,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43277 states to 43277 states and 55675 transitions. [2024-11-18 14:54:42,899 INFO L78 Accepts]: Start accepts. Automaton has 43277 states and 55675 transitions. Word has length 167 [2024-11-18 14:54:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:42,900 INFO L471 AbstractCegarLoop]: Abstraction has 43277 states and 55675 transitions. [2024-11-18 14:54:42,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand 43277 states and 55675 transitions. [2024-11-18 14:54:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 14:54:42,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:42,926 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] [2024-11-18 14:54:42,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:54:42,927 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:42,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1568307259, now seen corresponding path program 1 times [2024-11-18 14:54:42,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:42,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623043008] [2024-11-18 14:54:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:42,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:43,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:43,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623043008] [2024-11-18 14:54:43,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623043008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:43,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:43,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139097326] [2024-11-18 14:54:43,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:43,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:43,138 INFO L87 Difference]: Start difference. First operand 43277 states and 55675 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:43,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:43,246 INFO L93 Difference]: Finished difference Result 62229 states and 79960 transitions. [2024-11-18 14:54:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:43,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-18 14:54:43,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:43,285 INFO L225 Difference]: With dead ends: 62229 [2024-11-18 14:54:43,286 INFO L226 Difference]: Without dead ends: 37349 [2024-11-18 14:54:43,306 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 [2024-11-18 14:54:43,307 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 2 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:43,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1594 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37349 states. [2024-11-18 14:54:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37349 to 37349. [2024-11-18 14:54:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37349 states, 37344 states have (on average 1.2866859468723222) internal successors, (48050), 37348 states have internal predecessors, (48050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:43,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37349 states to 37349 states and 48050 transitions. [2024-11-18 14:54:43,914 INFO L78 Accepts]: Start accepts. Automaton has 37349 states and 48050 transitions. Word has length 167 [2024-11-18 14:54:43,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:43,915 INFO L471 AbstractCegarLoop]: Abstraction has 37349 states and 48050 transitions. [2024-11-18 14:54:43,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:43,915 INFO L276 IsEmpty]: Start isEmpty. Operand 37349 states and 48050 transitions. [2024-11-18 14:54:43,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:54:43,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:43,946 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] [2024-11-18 14:54:43,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:54:43,946 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:43,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 2126052944, now seen corresponding path program 1 times [2024-11-18 14:54:43,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:43,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045309938] [2024-11-18 14:54:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:43,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:44,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045309938] [2024-11-18 14:54:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045309938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:44,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:44,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:44,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905041174] [2024-11-18 14:54:44,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:44,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:44,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:44,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:44,031 INFO L87 Difference]: Start difference. First operand 37349 states and 48050 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:44,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:44,367 INFO L93 Difference]: Finished difference Result 91927 states and 119764 transitions. [2024-11-18 14:54:44,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:44,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:54:44,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:44,441 INFO L225 Difference]: With dead ends: 91927 [2024-11-18 14:54:44,442 INFO L226 Difference]: Without dead ends: 66713 [2024-11-18 14:54:44,477 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 [2024-11-18 14:54:44,478 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 334 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:44,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 970 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:54:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66713 states. [2024-11-18 14:54:45,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66713 to 65830. [2024-11-18 14:54:45,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65830 states, 65825 states have (on average 1.2839346752753513) internal successors, (84515), 65829 states have internal predecessors, (84515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65830 states to 65830 states and 84515 transitions. [2024-11-18 14:54:45,427 INFO L78 Accepts]: Start accepts. Automaton has 65830 states and 84515 transitions. Word has length 169 [2024-11-18 14:54:45,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:45,427 INFO L471 AbstractCegarLoop]: Abstraction has 65830 states and 84515 transitions. [2024-11-18 14:54:45,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:45,427 INFO L276 IsEmpty]: Start isEmpty. Operand 65830 states and 84515 transitions. [2024-11-18 14:54:45,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:54:45,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:45,462 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] [2024-11-18 14:54:45,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:54:45,463 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:45,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:45,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1504634869, now seen corresponding path program 1 times [2024-11-18 14:54:45,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:45,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228783232] [2024-11-18 14:54:45,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:45,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:46,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:46,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228783232] [2024-11-18 14:54:46,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228783232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:46,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:46,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 14:54:46,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397391035] [2024-11-18 14:54:46,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:46,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:54:46,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:46,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:54:46,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:54:46,317 INFO L87 Difference]: Start difference. First operand 65830 states and 84515 transitions. Second operand has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:47,318 INFO L93 Difference]: Finished difference Result 114075 states and 146793 transitions. [2024-11-18 14:54:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 14:54:47,319 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:54:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:47,437 INFO L225 Difference]: With dead ends: 114075 [2024-11-18 14:54:47,437 INFO L226 Difference]: Without dead ends: 101454 [2024-11-18 14:54:47,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2024-11-18 14:54:47,476 INFO L432 NwaCegarLoop]: 794 mSDtfsCounter, 3288 mSDsluCounter, 6508 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:47,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3288 Valid, 7302 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:54:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101454 states. [2024-11-18 14:54:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101454 to 78228. [2024-11-18 14:54:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78228 states, 78223 states have (on average 1.260613885941475) internal successors, (98609), 78227 states have internal predecessors, (98609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78228 states to 78228 states and 98609 transitions. [2024-11-18 14:54:48,825 INFO L78 Accepts]: Start accepts. Automaton has 78228 states and 98609 transitions. Word has length 169 [2024-11-18 14:54:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:48,826 INFO L471 AbstractCegarLoop]: Abstraction has 78228 states and 98609 transitions. [2024-11-18 14:54:48,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 78228 states and 98609 transitions. [2024-11-18 14:54:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:54:48,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:48,889 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] [2024-11-18 14:54:48,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 14:54:48,890 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:48,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash 470682753, now seen corresponding path program 1 times [2024-11-18 14:54:48,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:48,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682431120] [2024-11-18 14:54:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:48,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:49,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:49,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682431120] [2024-11-18 14:54:49,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682431120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:49,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:49,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 14:54:49,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036066389] [2024-11-18 14:54:49,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:49,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 14:54:49,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:49,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 14:54:49,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:54:49,673 INFO L87 Difference]: Start difference. First operand 78228 states and 98609 transitions. Second operand has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:51,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:51,043 INFO L93 Difference]: Finished difference Result 108899 states and 138744 transitions. [2024-11-18 14:54:51,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-18 14:54:51,043 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:54:51,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:51,146 INFO L225 Difference]: With dead ends: 108899 [2024-11-18 14:54:51,147 INFO L226 Difference]: Without dead ends: 98693 [2024-11-18 14:54:51,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2024-11-18 14:54:51,168 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 3138 mSDsluCounter, 6923 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 7698 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:51,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 7698 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:54:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98693 states. [2024-11-18 14:54:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98693 to 89750. [2024-11-18 14:54:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89750 states, 89745 states have (on average 1.2477463925566883) internal successors, (111979), 89749 states have internal predecessors, (111979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:52,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89750 states to 89750 states and 111979 transitions. [2024-11-18 14:54:52,270 INFO L78 Accepts]: Start accepts. Automaton has 89750 states and 111979 transitions. Word has length 169 [2024-11-18 14:54:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:52,271 INFO L471 AbstractCegarLoop]: Abstraction has 89750 states and 111979 transitions. [2024-11-18 14:54:52,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:52,271 INFO L276 IsEmpty]: Start isEmpty. Operand 89750 states and 111979 transitions. [2024-11-18 14:54:52,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:54:52,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:52,330 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] [2024-11-18 14:54:52,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 14:54:52,330 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:52,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1113489418, now seen corresponding path program 1 times [2024-11-18 14:54:52,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:52,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473901046] [2024-11-18 14:54:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:52,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:53,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:53,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473901046] [2024-11-18 14:54:53,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473901046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:53,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:53,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 14:54:53,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622981323] [2024-11-18 14:54:53,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:53,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 14:54:53,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:53,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 14:54:53,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:54:53,187 INFO L87 Difference]: Start difference. First operand 89750 states and 111979 transitions. Second operand has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:54,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:54,352 INFO L93 Difference]: Finished difference Result 171296 states and 220559 transitions. [2024-11-18 14:54:54,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-18 14:54:54,353 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:54:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:54,551 INFO L225 Difference]: With dead ends: 171296 [2024-11-18 14:54:54,551 INFO L226 Difference]: Without dead ends: 161569 [2024-11-18 14:54:54,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 14:54:54,612 INFO L432 NwaCegarLoop]: 648 mSDtfsCounter, 5901 mSDsluCounter, 6294 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5901 SdHoareTripleChecker+Valid, 6942 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:54,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5901 Valid, 6942 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:54:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161569 states. [2024-11-18 14:54:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161569 to 108359. [2024-11-18 14:54:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108359 states, 108354 states have (on average 1.2346567731694262) internal successors, (133780), 108358 states have internal predecessors, (133780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108359 states to 108359 states and 133780 transitions. [2024-11-18 14:54:56,864 INFO L78 Accepts]: Start accepts. Automaton has 108359 states and 133780 transitions. Word has length 169 [2024-11-18 14:54:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:56,864 INFO L471 AbstractCegarLoop]: Abstraction has 108359 states and 133780 transitions. [2024-11-18 14:54:56,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 108359 states and 133780 transitions. [2024-11-18 14:54:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:54:56,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:56,936 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] [2024-11-18 14:54:56,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 14:54:56,937 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:54:56,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash 763562170, now seen corresponding path program 1 times [2024-11-18 14:54:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:56,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190087822] [2024-11-18 14:54:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:58,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190087822] [2024-11-18 14:54:58,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190087822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:58,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:58,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-18 14:54:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789166341] [2024-11-18 14:54:58,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:58,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 14:54:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:58,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 14:54:58,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:54:58,993 INFO L87 Difference]: Start difference. First operand 108359 states and 133780 transitions. Second operand has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:55:02,765 INFO L93 Difference]: Finished difference Result 147960 states and 188306 transitions. [2024-11-18 14:55:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-18 14:55:02,766 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:55:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:55:02,911 INFO L225 Difference]: With dead ends: 147960 [2024-11-18 14:55:02,911 INFO L226 Difference]: Without dead ends: 141713 [2024-11-18 14:55:02,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2024-11-18 14:55:02,946 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 4772 mSDsluCounter, 9359 mSDsCounter, 0 mSdLazyCounter, 3992 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 10024 SdHoareTripleChecker+Invalid, 4056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:55:02,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 10024 Invalid, 4056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3992 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-18 14:55:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141713 states. [2024-11-18 14:55:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141713 to 109843. [2024-11-18 14:55:04,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109843 states, 109838 states have (on average 1.2330887306760867) internal successors, (135440), 109842 states have internal predecessors, (135440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109843 states to 109843 states and 135440 transitions. [2024-11-18 14:55:04,827 INFO L78 Accepts]: Start accepts. Automaton has 109843 states and 135440 transitions. Word has length 169 [2024-11-18 14:55:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:55:04,828 INFO L471 AbstractCegarLoop]: Abstraction has 109843 states and 135440 transitions. [2024-11-18 14:55:04,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 109843 states and 135440 transitions. [2024-11-18 14:55:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:55:04,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:55:04,886 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] [2024-11-18 14:55:04,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 14:55:04,886 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:55:04,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:55:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1014770631, now seen corresponding path program 1 times [2024-11-18 14:55:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:55:04,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988214918] [2024-11-18 14:55:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:55:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:55:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:55:05,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:55:05,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:55:05,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988214918] [2024-11-18 14:55:05,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988214918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:55:05,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:55:05,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:55:05,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72713303] [2024-11-18 14:55:05,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:55:05,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:55:05,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:55:05,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:55:05,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:55:05,136 INFO L87 Difference]: Start difference. First operand 109843 states and 135440 transitions. Second operand has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:55:05,503 INFO L93 Difference]: Finished difference Result 170840 states and 212920 transitions. [2024-11-18 14:55:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:55:05,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:55:05,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:55:05,587 INFO L225 Difference]: With dead ends: 170840 [2024-11-18 14:55:05,587 INFO L226 Difference]: Without dead ends: 78243 [2024-11-18 14:55:05,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:55:05,654 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 1389 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:55:05,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 718 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:55:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78243 states. [2024-11-18 14:55:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78243 to 70041. [2024-11-18 14:55:06,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70041 states, 70036 states have (on average 1.2147038665829002) internal successors, (85073), 70040 states have internal predecessors, (85073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70041 states to 70041 states and 85073 transitions. [2024-11-18 14:55:06,734 INFO L78 Accepts]: Start accepts. Automaton has 70041 states and 85073 transitions. Word has length 169 [2024-11-18 14:55:06,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:55:06,735 INFO L471 AbstractCegarLoop]: Abstraction has 70041 states and 85073 transitions. [2024-11-18 14:55:06,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:06,735 INFO L276 IsEmpty]: Start isEmpty. Operand 70041 states and 85073 transitions. [2024-11-18 14:55:06,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:55:06,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:55:06,788 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] [2024-11-18 14:55:06,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 14:55:06,788 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:55:06,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:55:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash -350491148, now seen corresponding path program 1 times [2024-11-18 14:55:06,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:55:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507382205] [2024-11-18 14:55:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:55:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:55:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:55:08,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:55:08,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:55:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507382205] [2024-11-18 14:55:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507382205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:55:08,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:55:08,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-18 14:55:08,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017833589] [2024-11-18 14:55:08,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:55:08,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 14:55:08,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:55:08,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 14:55:08,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:55:08,537 INFO L87 Difference]: Start difference. First operand 70041 states and 85073 transitions. Second operand has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:55:13,067 INFO L93 Difference]: Finished difference Result 109971 states and 141647 transitions. [2024-11-18 14:55:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-18 14:55:13,067 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:55:13,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:55:13,184 INFO L225 Difference]: With dead ends: 109971 [2024-11-18 14:55:13,184 INFO L226 Difference]: Without dead ends: 107332 [2024-11-18 14:55:13,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=733, Invalid=3299, Unknown=0, NotChecked=0, Total=4032 [2024-11-18 14:55:13,203 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 4874 mSDsluCounter, 13383 mSDsCounter, 0 mSdLazyCounter, 5078 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4874 SdHoareTripleChecker+Valid, 14331 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 5078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:55:13,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4874 Valid, 14331 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 5078 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 14:55:13,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107332 states. [2024-11-18 14:55:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107332 to 72609. [2024-11-18 14:55:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72609 states, 72604 states have (on average 1.2125640460580684) internal successors, (88037), 72608 states have internal predecessors, (88037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72609 states to 72609 states and 88037 transitions. [2024-11-18 14:55:14,149 INFO L78 Accepts]: Start accepts. Automaton has 72609 states and 88037 transitions. Word has length 169 [2024-11-18 14:55:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:55:14,149 INFO L471 AbstractCegarLoop]: Abstraction has 72609 states and 88037 transitions. [2024-11-18 14:55:14,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 72609 states and 88037 transitions. [2024-11-18 14:55:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:55:14,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:55:14,202 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] [2024-11-18 14:55:14,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 14:55:14,202 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:55:14,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:55:14,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1837923337, now seen corresponding path program 1 times [2024-11-18 14:55:14,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:55:14,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992151963] [2024-11-18 14:55:14,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:55:14,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:55:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:55:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:55:15,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:55:15,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992151963] [2024-11-18 14:55:15,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992151963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:55:15,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:55:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-18 14:55:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15160773] [2024-11-18 14:55:15,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:55:15,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 14:55:15,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:55:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 14:55:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2024-11-18 14:55:15,590 INFO L87 Difference]: Start difference. First operand 72609 states and 88037 transitions. Second operand has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 22 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:55:21,475 INFO L93 Difference]: Finished difference Result 98260 states and 123113 transitions. [2024-11-18 14:55:21,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-18 14:55:21,475 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 22 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:55:21,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:55:21,554 INFO L225 Difference]: With dead ends: 98260 [2024-11-18 14:55:21,554 INFO L226 Difference]: Without dead ends: 93878 [2024-11-18 14:55:21,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1040, Invalid=4216, Unknown=0, NotChecked=0, Total=5256 [2024-11-18 14:55:21,566 INFO L432 NwaCegarLoop]: 1260 mSDtfsCounter, 6585 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 6201 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 18196 SdHoareTripleChecker+Invalid, 6373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 6201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-18 14:55:21,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6585 Valid, 18196 Invalid, 6373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 6201 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-18 14:55:21,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93878 states. [2024-11-18 14:55:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93878 to 74933. [2024-11-18 14:55:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74933 states, 74928 states have (on average 1.2087604099935938) internal successors, (90570), 74932 states have internal predecessors, (90570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74933 states to 74933 states and 90570 transitions. [2024-11-18 14:55:22,397 INFO L78 Accepts]: Start accepts. Automaton has 74933 states and 90570 transitions. Word has length 169 [2024-11-18 14:55:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:55:22,397 INFO L471 AbstractCegarLoop]: Abstraction has 74933 states and 90570 transitions. [2024-11-18 14:55:22,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 22 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 74933 states and 90570 transitions. [2024-11-18 14:55:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:55:22,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:55:22,459 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] [2024-11-18 14:55:22,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 14:55:22,460 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:55:22,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:55:22,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1736661874, now seen corresponding path program 1 times [2024-11-18 14:55:22,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:55:22,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655023516] [2024-11-18 14:55:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:55:22,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:55:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:55:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:55:23,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:55:23,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655023516] [2024-11-18 14:55:23,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655023516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:55:23,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:55:23,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-18 14:55:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667708918] [2024-11-18 14:55:23,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:55:23,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 14:55:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:55:23,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 14:55:23,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-11-18 14:55:23,829 INFO L87 Difference]: Start difference. First operand 74933 states and 90570 transitions. Second operand has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:55:27,765 INFO L93 Difference]: Finished difference Result 85904 states and 105287 transitions. [2024-11-18 14:55:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-18 14:55:27,766 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:55:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:55:27,858 INFO L225 Difference]: With dead ends: 85904 [2024-11-18 14:55:27,858 INFO L226 Difference]: Without dead ends: 82670 [2024-11-18 14:55:27,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=700, Invalid=2840, Unknown=0, NotChecked=0, Total=3540 [2024-11-18 14:55:27,888 INFO L432 NwaCegarLoop]: 1010 mSDtfsCounter, 3093 mSDsluCounter, 12206 mSDsCounter, 0 mSdLazyCounter, 4544 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3093 SdHoareTripleChecker+Valid, 13216 SdHoareTripleChecker+Invalid, 4594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:55:27,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3093 Valid, 13216 Invalid, 4594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4544 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 14:55:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82670 states. [2024-11-18 14:55:28,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82670 to 76116. [2024-11-18 14:55:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76116 states, 76111 states have (on average 1.2075652665186372) internal successors, (91909), 76115 states have internal predecessors, (91909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76116 states to 76116 states and 91909 transitions. [2024-11-18 14:55:28,735 INFO L78 Accepts]: Start accepts. Automaton has 76116 states and 91909 transitions. Word has length 169 [2024-11-18 14:55:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:55:28,736 INFO L471 AbstractCegarLoop]: Abstraction has 76116 states and 91909 transitions. [2024-11-18 14:55:28,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 76116 states and 91909 transitions. [2024-11-18 14:55:28,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:55:28,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:55:28,792 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] [2024-11-18 14:55:28,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 14:55:28,792 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:55:28,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:55:28,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1479435245, now seen corresponding path program 1 times [2024-11-18 14:55:28,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:55:28,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354230129] [2024-11-18 14:55:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:55:28,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:55:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:55:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:55:29,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:55:29,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354230129] [2024-11-18 14:55:29,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354230129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:55:29,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:55:29,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:55:29,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974582932] [2024-11-18 14:55:29,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:55:29,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:55:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:55:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:55:29,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:55:29,130 INFO L87 Difference]: Start difference. First operand 76116 states and 91909 transitions. Second operand has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:55:29,388 INFO L93 Difference]: Finished difference Result 116902 states and 142685 transitions. [2024-11-18 14:55:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:55:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-18 14:55:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:55:29,447 INFO L225 Difference]: With dead ends: 116902 [2024-11-18 14:55:29,447 INFO L226 Difference]: Without dead ends: 57173 [2024-11-18 14:55:29,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:55:29,488 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 1374 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:55:29,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 714 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:55:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57173 states. [2024-11-18 14:55:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57173 to 50827. [2024-11-18 14:55:29,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50827 states, 50822 states have (on average 1.1902128999252293) internal successors, (60489), 50826 states have internal predecessors, (60489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50827 states to 50827 states and 60489 transitions. [2024-11-18 14:55:30,336 INFO L78 Accepts]: Start accepts. Automaton has 50827 states and 60489 transitions. Word has length 169 [2024-11-18 14:55:30,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:55:30,336 INFO L471 AbstractCegarLoop]: Abstraction has 50827 states and 60489 transitions. [2024-11-18 14:55:30,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:55:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 50827 states and 60489 transitions. [2024-11-18 14:55:30,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 14:55:30,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:55:30,371 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] [2024-11-18 14:55:30,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 14:55:30,371 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-18 14:55:30,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:55:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash -18796934, now seen corresponding path program 1 times [2024-11-18 14:55:30,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:55:30,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696485101] [2024-11-18 14:55:30,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:55:30,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:55:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:55:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:55:31,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:55:31,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696485101] [2024-11-18 14:55:31,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696485101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:55:31,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:55:31,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-18 14:55:31,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073731050] [2024-11-18 14:55:31,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:55:31,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 14:55:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:55:31,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 14:55:31,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:55:31,672 INFO L87 Difference]: Start difference. First operand 50827 states and 60489 transitions. Second operand has 23 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 23 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)