./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.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 34aba2e0444cf7168338399e1c016871ad9a3305ff2dee9e611b86f3cad834b5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:39:38,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:39:38,470 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:39:38,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:39:38,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:39:38,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:39:38,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:39:38,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:39:38,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:39:38,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:39:38,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:39:38,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:39:38,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:39:38,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:39:38,526 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:39:38,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:39:38,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:39:38,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:39:38,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:39:38,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:39:38,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:39:38,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:39:38,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:39:38,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:39:38,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:39:38,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:39:38,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:39:38,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:39:38,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:39:38,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:39:38,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:39:38,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:39:38,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:39:38,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:39:38,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:39:38,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:39:38,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:39:38,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:39:38,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:39:38,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:39:38,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:39:38,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:39:38,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34aba2e0444cf7168338399e1c016871ad9a3305ff2dee9e611b86f3cad834b5 [2024-10-24 01:39:38,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:39:38,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:39:38,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:39:38,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:39:38,852 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:39:38,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-24 01:39:40,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:39:40,667 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:39:40,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-24 01:39:40,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c750928ed/ff9ff6e2332c4326aacb1af4128b42ce/FLAG2a0cfe674 [2024-10-24 01:39:40,708 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c750928ed/ff9ff6e2332c4326aacb1af4128b42ce [2024-10-24 01:39:40,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:39:40,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:39:40,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:39:40,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:39:40,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:39:40,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:40" (1/1) ... [2024-10-24 01:39:40,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bc70c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:40, skipping insertion in model container [2024-10-24 01:39:40,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:40" (1/1) ... [2024-10-24 01:39:40,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:39:41,107 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8127,8140] [2024-10-24 01:39:41,161 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14997,15010] [2024-10-24 01:39:41,183 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17084,17097] [2024-10-24 01:39:41,192 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18108,18121] [2024-10-24 01:39:41,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:39:41,383 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:39:41,441 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8127,8140] [2024-10-24 01:39:41,456 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14997,15010] [2024-10-24 01:39:41,462 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17084,17097] [2024-10-24 01:39:41,466 WARN L248 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_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18108,18121] [2024-10-24 01:39:41,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:39:41,606 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:39:41,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41 WrapperNode [2024-10-24 01:39:41,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:39:41,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:39:41,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:39:41,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:39:41,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,771 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2620 [2024-10-24 01:39:41,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:39:41,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:39:41,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:39:41,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:39:41,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,811 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,870 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]. [2024-10-24 01:39:41,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:39:41,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:39:41,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:39:41,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:39:41,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (1/1) ... [2024-10-24 01:39:41,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:39:41,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:39:41,996 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) [2024-10-24 01:39:42,002 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 [2024-10-24 01:39:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:39:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:39:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:39:42,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:39:42,238 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:39:42,240 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:39:43,783 INFO L? ?]: Removed 426 outVars from TransFormulas that were not future-live. [2024-10-24 01:39:43,783 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:39:43,848 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:39:43,852 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:39:43,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:39:43 BoogieIcfgContainer [2024-10-24 01:39:43,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:39:43,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:39:43,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:39:43,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:39:43,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:39:40" (1/3) ... [2024-10-24 01:39:43,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b5cfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:39:43, skipping insertion in model container [2024-10-24 01:39:43,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:41" (2/3) ... [2024-10-24 01:39:43,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b5cfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:39:43, skipping insertion in model container [2024-10-24 01:39:43,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:39:43" (3/3) ... [2024-10-24 01:39:43,863 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-10-24 01:39:43,878 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:39:43,879 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 01:39:43,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:39:43,959 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;@38bcc892, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:39:43,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 01:39:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 454 states, 449 states have (on average 1.8530066815144766) internal successors, (832), 453 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:39:43,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:43,988 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] [2024-10-24 01:39:43,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:43,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash 34120099, now seen corresponding path program 1 times [2024-10-24 01:39:44,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:44,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011564386] [2024-10-24 01:39:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:44,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:44,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011564386] [2024-10-24 01:39:44,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011564386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:44,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:44,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:44,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912423365] [2024-10-24 01:39:44,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:44,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:39:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:44,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:39:44,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:44,661 INFO L87 Difference]: Start difference. First operand has 454 states, 449 states have (on average 1.8530066815144766) internal successors, (832), 453 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:45,268 INFO L93 Difference]: Finished difference Result 796 states and 1404 transitions. [2024-10-24 01:39:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:39:45,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-24 01:39:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:45,293 INFO L225 Difference]: With dead ends: 796 [2024-10-24 01:39:45,293 INFO L226 Difference]: Without dead ends: 505 [2024-10-24 01:39:45,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:45,303 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 2411 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:45,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 614 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:39:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-10-24 01:39:45,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 499. [2024-10-24 01:39:45,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 495 states have (on average 1.3636363636363635) internal successors, (675), 498 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 675 transitions. [2024-10-24 01:39:45,373 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 675 transitions. Word has length 49 [2024-10-24 01:39:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:45,374 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 675 transitions. [2024-10-24 01:39:45,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 675 transitions. [2024-10-24 01:39:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:39:45,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:45,377 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] [2024-10-24 01:39:45,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:39:45,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:45,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:45,380 INFO L85 PathProgramCache]: Analyzing trace with hash 758566708, now seen corresponding path program 1 times [2024-10-24 01:39:45,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:45,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240111256] [2024-10-24 01:39:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:45,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:45,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:45,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240111256] [2024-10-24 01:39:45,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240111256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:45,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:45,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:45,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987927307] [2024-10-24 01:39:45,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:45,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:45,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:45,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:45,516 INFO L87 Difference]: Start difference. First operand 499 states and 675 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:45,557 INFO L93 Difference]: Finished difference Result 817 states and 1148 transitions. [2024-10-24 01:39:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:45,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-24 01:39:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:45,560 INFO L225 Difference]: With dead ends: 817 [2024-10-24 01:39:45,561 INFO L226 Difference]: Without dead ends: 610 [2024-10-24 01:39:45,563 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 [2024-10-24 01:39:45,565 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 323 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:45,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 869 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-10-24 01:39:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 603. [2024-10-24 01:39:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 599 states have (on average 1.3823038397328882) internal successors, (828), 602 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 828 transitions. [2024-10-24 01:39:45,603 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 828 transitions. Word has length 49 [2024-10-24 01:39:45,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:45,603 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 828 transitions. [2024-10-24 01:39:45,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,604 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 828 transitions. [2024-10-24 01:39:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:39:45,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:45,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:39:45,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:39:45,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:45,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:45,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1943064238, now seen corresponding path program 1 times [2024-10-24 01:39:45,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:45,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540988559] [2024-10-24 01:39:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:45,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540988559] [2024-10-24 01:39:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540988559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875659014] [2024-10-24 01:39:45,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:45,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:45,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:45,731 INFO L87 Difference]: Start difference. First operand 603 states and 828 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:45,821 INFO L93 Difference]: Finished difference Result 1204 states and 1718 transitions. [2024-10-24 01:39:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-24 01:39:45,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:45,825 INFO L225 Difference]: With dead ends: 1204 [2024-10-24 01:39:45,826 INFO L226 Difference]: Without dead ends: 899 [2024-10-24 01:39:45,828 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 [2024-10-24 01:39:45,830 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 279 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:45,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 902 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2024-10-24 01:39:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 892. [2024-10-24 01:39:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 888 states have (on average 1.4065315315315314) internal successors, (1249), 891 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1249 transitions. [2024-10-24 01:39:45,857 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1249 transitions. Word has length 49 [2024-10-24 01:39:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:45,858 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1249 transitions. [2024-10-24 01:39:45,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:45,858 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1249 transitions. [2024-10-24 01:39:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:39:45,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:45,861 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] [2024-10-24 01:39:45,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:39:45,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:45,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1798780356, now seen corresponding path program 1 times [2024-10-24 01:39:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505088260] [2024-10-24 01:39:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:45,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505088260] [2024-10-24 01:39:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505088260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:45,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632627303] [2024-10-24 01:39:45,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:45,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:39:45,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:45,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:39:45,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:45,983 INFO L87 Difference]: Start difference. First operand 892 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:46,313 INFO L93 Difference]: Finished difference Result 2159 states and 3108 transitions. [2024-10-24 01:39:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:39:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-24 01:39:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:46,321 INFO L225 Difference]: With dead ends: 2159 [2024-10-24 01:39:46,321 INFO L226 Difference]: Without dead ends: 1362 [2024-10-24 01:39:46,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:46,324 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1589 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:46,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 362 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:46,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-10-24 01:39:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1356. [2024-10-24 01:39:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1352 states have (on average 1.4363905325443787) internal successors, (1942), 1355 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1942 transitions. [2024-10-24 01:39:46,356 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1942 transitions. Word has length 49 [2024-10-24 01:39:46,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:46,357 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 1942 transitions. [2024-10-24 01:39:46,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1942 transitions. [2024-10-24 01:39:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 01:39:46,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:46,359 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] [2024-10-24 01:39:46,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:39:46,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:46,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:46,361 INFO L85 PathProgramCache]: Analyzing trace with hash -108782984, now seen corresponding path program 1 times [2024-10-24 01:39:46,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:46,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374515765] [2024-10-24 01:39:46,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:46,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:46,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:46,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374515765] [2024-10-24 01:39:46,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374515765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:46,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:46,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:46,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965467100] [2024-10-24 01:39:46,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:46,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:46,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:46,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:46,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:46,453 INFO L87 Difference]: Start difference. First operand 1356 states and 1942 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:46,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:46,495 INFO L93 Difference]: Finished difference Result 3415 states and 4939 transitions. [2024-10-24 01:39:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:46,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-10-24 01:39:46,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:46,504 INFO L225 Difference]: With dead ends: 3415 [2024-10-24 01:39:46,504 INFO L226 Difference]: Without dead ends: 2243 [2024-10-24 01:39:46,506 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 [2024-10-24 01:39:46,507 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 313 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:46,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 828 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:46,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2024-10-24 01:39:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2225. [2024-10-24 01:39:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2221 states have (on average 1.4187303016659163) internal successors, (3151), 2224 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3151 transitions. [2024-10-24 01:39:46,552 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3151 transitions. Word has length 50 [2024-10-24 01:39:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:46,553 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 3151 transitions. [2024-10-24 01:39:46,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3151 transitions. [2024-10-24 01:39:46,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 01:39:46,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:46,556 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] [2024-10-24 01:39:46,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:39:46,556 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:46,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1856759737, now seen corresponding path program 1 times [2024-10-24 01:39:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490044334] [2024-10-24 01:39:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:46,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:46,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490044334] [2024-10-24 01:39:46,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490044334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:46,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:46,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823717183] [2024-10-24 01:39:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:46,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:39:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:39:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:46,709 INFO L87 Difference]: Start difference. First operand 2225 states and 3151 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:47,023 INFO L93 Difference]: Finished difference Result 5038 states and 7184 transitions. [2024-10-24 01:39:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:39:47,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-24 01:39:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:47,035 INFO L225 Difference]: With dead ends: 5038 [2024-10-24 01:39:47,035 INFO L226 Difference]: Without dead ends: 2983 [2024-10-24 01:39:47,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:47,041 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 1392 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:47,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 338 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:47,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2024-10-24 01:39:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2964. [2024-10-24 01:39:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2960 states have (on average 1.414864864864865) internal successors, (4188), 2963 states have internal predecessors, (4188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 4188 transitions. [2024-10-24 01:39:47,114 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 4188 transitions. Word has length 51 [2024-10-24 01:39:47,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:47,116 INFO L471 AbstractCegarLoop]: Abstraction has 2964 states and 4188 transitions. [2024-10-24 01:39:47,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 4188 transitions. [2024-10-24 01:39:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-24 01:39:47,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:47,119 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] [2024-10-24 01:39:47,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:39:47,119 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:47,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:47,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1124331061, now seen corresponding path program 1 times [2024-10-24 01:39:47,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:47,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555272742] [2024-10-24 01:39:47,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:47,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:47,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:47,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555272742] [2024-10-24 01:39:47,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555272742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:47,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:47,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:39:47,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879457501] [2024-10-24 01:39:47,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:47,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:39:47,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:47,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:39:47,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:47,293 INFO L87 Difference]: Start difference. First operand 2964 states and 4188 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:47,736 INFO L93 Difference]: Finished difference Result 5847 states and 8346 transitions. [2024-10-24 01:39:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:39:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-24 01:39:47,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:47,752 INFO L225 Difference]: With dead ends: 5847 [2024-10-24 01:39:47,753 INFO L226 Difference]: Without dead ends: 4544 [2024-10-24 01:39:47,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:39:47,758 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1723 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:47,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 586 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2024-10-24 01:39:47,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 2978. [2024-10-24 01:39:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2974 states have (on average 1.414256893073302) internal successors, (4206), 2977 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4206 transitions. [2024-10-24 01:39:47,871 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4206 transitions. Word has length 52 [2024-10-24 01:39:47,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:47,871 INFO L471 AbstractCegarLoop]: Abstraction has 2978 states and 4206 transitions. [2024-10-24 01:39:47,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4206 transitions. [2024-10-24 01:39:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-24 01:39:47,875 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:47,875 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] [2024-10-24 01:39:47,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:39:47,876 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:47,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:47,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1221262858, now seen corresponding path program 1 times [2024-10-24 01:39:47,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:47,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870334174] [2024-10-24 01:39:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:47,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:48,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:48,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870334174] [2024-10-24 01:39:48,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870334174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:48,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:48,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:39:48,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020912855] [2024-10-24 01:39:48,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:48,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:39:48,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:48,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:39:48,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:48,065 INFO L87 Difference]: Start difference. First operand 2978 states and 4206 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:48,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:48,532 INFO L93 Difference]: Finished difference Result 6530 states and 9327 transitions. [2024-10-24 01:39:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:39:48,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-24 01:39:48,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:48,552 INFO L225 Difference]: With dead ends: 6530 [2024-10-24 01:39:48,552 INFO L226 Difference]: Without dead ends: 5418 [2024-10-24 01:39:48,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:39:48,558 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1848 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:48,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 621 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:39:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2024-10-24 01:39:48,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 3000. [2024-10-24 01:39:48,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3000 states, 2996 states have (on average 1.414218958611482) internal successors, (4237), 2999 states have internal predecessors, (4237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 4237 transitions. [2024-10-24 01:39:48,649 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 4237 transitions. Word has length 52 [2024-10-24 01:39:48,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:48,650 INFO L471 AbstractCegarLoop]: Abstraction has 3000 states and 4237 transitions. [2024-10-24 01:39:48,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 4237 transitions. [2024-10-24 01:39:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-24 01:39:48,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:48,653 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] [2024-10-24 01:39:48,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:39:48,654 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:48,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash -163415276, now seen corresponding path program 1 times [2024-10-24 01:39:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:48,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109933712] [2024-10-24 01:39:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:48,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:48,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109933712] [2024-10-24 01:39:48,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109933712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:48,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:48,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:39:48,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304456857] [2024-10-24 01:39:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:48,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:39:48,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:48,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:39:48,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:48,812 INFO L87 Difference]: Start difference. First operand 3000 states and 4237 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:49,260 INFO L93 Difference]: Finished difference Result 7210 states and 10288 transitions. [2024-10-24 01:39:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:39:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-24 01:39:49,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:49,281 INFO L225 Difference]: With dead ends: 7210 [2024-10-24 01:39:49,281 INFO L226 Difference]: Without dead ends: 6242 [2024-10-24 01:39:49,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:39:49,287 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 1962 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:49,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 633 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:39:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2024-10-24 01:39:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 3034. [2024-10-24 01:39:49,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3030 states have (on average 1.4128712871287128) internal successors, (4281), 3033 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:49,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4281 transitions. [2024-10-24 01:39:49,383 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4281 transitions. Word has length 52 [2024-10-24 01:39:49,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:49,384 INFO L471 AbstractCegarLoop]: Abstraction has 3034 states and 4281 transitions. [2024-10-24 01:39:49,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:49,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4281 transitions. [2024-10-24 01:39:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 01:39:49,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:49,387 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] [2024-10-24 01:39:49,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:39:49,387 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:49,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:49,388 INFO L85 PathProgramCache]: Analyzing trace with hash -55106621, now seen corresponding path program 1 times [2024-10-24 01:39:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:49,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633007439] [2024-10-24 01:39:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:49,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:49,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:49,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633007439] [2024-10-24 01:39:49,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633007439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:49,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:49,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:39:49,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417667478] [2024-10-24 01:39:49,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:49,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:39:49,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:49,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:39:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:49,712 INFO L87 Difference]: Start difference. First operand 3034 states and 4281 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:50,162 INFO L93 Difference]: Finished difference Result 6200 states and 8912 transitions. [2024-10-24 01:39:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:39:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-24 01:39:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:50,184 INFO L225 Difference]: With dead ends: 6200 [2024-10-24 01:39:50,188 INFO L226 Difference]: Without dead ends: 4251 [2024-10-24 01:39:50,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:39:50,194 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 1446 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:50,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 774 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-10-24 01:39:50,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 2944. [2024-10-24 01:39:50,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2940 states have (on average 1.4125850340136055) internal successors, (4153), 2943 states have internal predecessors, (4153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:50,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4153 transitions. [2024-10-24 01:39:50,248 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4153 transitions. Word has length 53 [2024-10-24 01:39:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:50,249 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 4153 transitions. [2024-10-24 01:39:50,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4153 transitions. [2024-10-24 01:39:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 01:39:50,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:50,251 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] [2024-10-24 01:39:50,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:39:50,252 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:50,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1129390909, now seen corresponding path program 1 times [2024-10-24 01:39:50,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:50,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083447349] [2024-10-24 01:39:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:50,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:50,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:50,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083447349] [2024-10-24 01:39:50,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083447349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:50,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:50,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:39:50,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018412642] [2024-10-24 01:39:50,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:50,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:39:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:50,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:39:50,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:39:50,541 INFO L87 Difference]: Start difference. First operand 2944 states and 4153 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:51,119 INFO L93 Difference]: Finished difference Result 5898 states and 8420 transitions. [2024-10-24 01:39:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:39:51,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-24 01:39:51,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:51,127 INFO L225 Difference]: With dead ends: 5898 [2024-10-24 01:39:51,127 INFO L226 Difference]: Without dead ends: 4109 [2024-10-24 01:39:51,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:39:51,130 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1535 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:51,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 963 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:39:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2024-10-24 01:39:51,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 2915. [2024-10-24 01:39:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.4125729989694262) internal successors, (4112), 2914 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4112 transitions. [2024-10-24 01:39:51,185 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4112 transitions. Word has length 53 [2024-10-24 01:39:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:51,185 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4112 transitions. [2024-10-24 01:39:51,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4112 transitions. [2024-10-24 01:39:51,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 01:39:51,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:51,188 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] [2024-10-24 01:39:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:39:51,188 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:51,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash -421230622, now seen corresponding path program 1 times [2024-10-24 01:39:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482757484] [2024-10-24 01:39:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:51,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:51,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482757484] [2024-10-24 01:39:51,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482757484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:51,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:51,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:39:51,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724508620] [2024-10-24 01:39:51,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:51,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:39:51,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:51,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:39:51,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:39:51,495 INFO L87 Difference]: Start difference. First operand 2915 states and 4112 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:52,134 INFO L93 Difference]: Finished difference Result 4376 states and 6196 transitions. [2024-10-24 01:39:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:39:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-24 01:39:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:52,144 INFO L225 Difference]: With dead ends: 4376 [2024-10-24 01:39:52,145 INFO L226 Difference]: Without dead ends: 4371 [2024-10-24 01:39:52,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:39:52,147 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 1518 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:52,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1077 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:39:52,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2024-10-24 01:39:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 2915. [2024-10-24 01:39:52,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.411885949845414) internal successors, (4110), 2914 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4110 transitions. [2024-10-24 01:39:52,227 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4110 transitions. Word has length 53 [2024-10-24 01:39:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:52,228 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4110 transitions. [2024-10-24 01:39:52,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4110 transitions. [2024-10-24 01:39:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 01:39:52,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:52,232 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] [2024-10-24 01:39:52,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:39:52,233 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:52,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1237294753, now seen corresponding path program 1 times [2024-10-24 01:39:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:52,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363340481] [2024-10-24 01:39:52,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:52,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:52,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:52,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363340481] [2024-10-24 01:39:52,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363340481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:52,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:52,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:52,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241653519] [2024-10-24 01:39:52,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:52,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:52,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:52,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:52,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:52,300 INFO L87 Difference]: Start difference. First operand 2915 states and 4110 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:52,344 INFO L93 Difference]: Finished difference Result 4185 states and 5951 transitions. [2024-10-24 01:39:52,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:52,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-10-24 01:39:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:52,349 INFO L225 Difference]: With dead ends: 4185 [2024-10-24 01:39:52,349 INFO L226 Difference]: Without dead ends: 2922 [2024-10-24 01:39:52,351 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 [2024-10-24 01:39:52,352 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 226 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:52,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 802 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:52,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2024-10-24 01:39:52,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2915. [2024-10-24 01:39:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.3981449673651667) internal successors, (4070), 2914 states have internal predecessors, (4070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4070 transitions. [2024-10-24 01:39:52,400 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4070 transitions. Word has length 54 [2024-10-24 01:39:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:52,401 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4070 transitions. [2024-10-24 01:39:52,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4070 transitions. [2024-10-24 01:39:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 01:39:52,404 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:52,404 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] [2024-10-24 01:39:52,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:39:52,405 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:52,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:52,405 INFO L85 PathProgramCache]: Analyzing trace with hash -863697757, now seen corresponding path program 1 times [2024-10-24 01:39:52,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199570213] [2024-10-24 01:39:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:52,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:52,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:52,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199570213] [2024-10-24 01:39:52,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199570213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:52,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:52,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:52,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136184245] [2024-10-24 01:39:52,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:52,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:52,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:52,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:52,470 INFO L87 Difference]: Start difference. First operand 2915 states and 4070 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:52,501 INFO L93 Difference]: Finished difference Result 4254 states and 5987 transitions. [2024-10-24 01:39:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:52,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-10-24 01:39:52,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:52,505 INFO L225 Difference]: With dead ends: 4254 [2024-10-24 01:39:52,506 INFO L226 Difference]: Without dead ends: 2921 [2024-10-24 01:39:52,507 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 [2024-10-24 01:39:52,508 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 242 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:52,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 803 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2024-10-24 01:39:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2915. [2024-10-24 01:39:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.385778083132944) internal successors, (4034), 2914 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4034 transitions. [2024-10-24 01:39:52,545 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4034 transitions. Word has length 54 [2024-10-24 01:39:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:52,545 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4034 transitions. [2024-10-24 01:39:52,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4034 transitions. [2024-10-24 01:39:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 01:39:52,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:52,548 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] [2024-10-24 01:39:52,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:39:52,548 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:52,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1589153365, now seen corresponding path program 1 times [2024-10-24 01:39:52,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:52,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947847782] [2024-10-24 01:39:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:52,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:52,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947847782] [2024-10-24 01:39:52,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947847782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:52,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:52,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897639354] [2024-10-24 01:39:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:52,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:52,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:52,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:52,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:52,603 INFO L87 Difference]: Start difference. First operand 2915 states and 4034 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:52,635 INFO L93 Difference]: Finished difference Result 3996 states and 5540 transitions. [2024-10-24 01:39:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:52,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-10-24 01:39:52,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:52,641 INFO L225 Difference]: With dead ends: 3996 [2024-10-24 01:39:52,641 INFO L226 Difference]: Without dead ends: 2906 [2024-10-24 01:39:52,644 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 [2024-10-24 01:39:52,644 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 261 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:52,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 814 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2024-10-24 01:39:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2900. [2024-10-24 01:39:52,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2896 states have (on average 1.3584254143646408) internal successors, (3934), 2899 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3934 transitions. [2024-10-24 01:39:52,731 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3934 transitions. Word has length 54 [2024-10-24 01:39:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:52,732 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 3934 transitions. [2024-10-24 01:39:52,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3934 transitions. [2024-10-24 01:39:52,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 01:39:52,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:52,735 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] [2024-10-24 01:39:52,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:39:52,735 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:52,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:52,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1127796312, now seen corresponding path program 1 times [2024-10-24 01:39:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573094360] [2024-10-24 01:39:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:52,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:52,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:52,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573094360] [2024-10-24 01:39:52,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573094360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:52,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:52,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:52,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578420171] [2024-10-24 01:39:52,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:52,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:52,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:52,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:52,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:52,793 INFO L87 Difference]: Start difference. First operand 2900 states and 3934 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:52,862 INFO L93 Difference]: Finished difference Result 4575 states and 6263 transitions. [2024-10-24 01:39:52,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-24 01:39:52,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:52,867 INFO L225 Difference]: With dead ends: 4575 [2024-10-24 01:39:52,868 INFO L226 Difference]: Without dead ends: 3318 [2024-10-24 01:39:52,869 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 [2024-10-24 01:39:52,870 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 326 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:52,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 522 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:52,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2024-10-24 01:39:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2718. [2024-10-24 01:39:52,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2714 states have (on average 1.3625644804716286) internal successors, (3698), 2717 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3698 transitions. [2024-10-24 01:39:52,906 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3698 transitions. Word has length 55 [2024-10-24 01:39:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:52,906 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 3698 transitions. [2024-10-24 01:39:52,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3698 transitions. [2024-10-24 01:39:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:39:52,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:52,909 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] [2024-10-24 01:39:52,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:39:52,910 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:52,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash 847139516, now seen corresponding path program 1 times [2024-10-24 01:39:52,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:52,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211733844] [2024-10-24 01:39:52,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:52,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:52,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:52,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:52,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211733844] [2024-10-24 01:39:52,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211733844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:52,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:52,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:52,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818054806] [2024-10-24 01:39:52,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:52,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:52,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:52,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:52,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:52,964 INFO L87 Difference]: Start difference. First operand 2718 states and 3698 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:53,049 INFO L93 Difference]: Finished difference Result 4994 states and 6853 transitions. [2024-10-24 01:39:53,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:53,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-24 01:39:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:53,056 INFO L225 Difference]: With dead ends: 4994 [2024-10-24 01:39:53,056 INFO L226 Difference]: Without dead ends: 3333 [2024-10-24 01:39:53,059 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 [2024-10-24 01:39:53,059 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 302 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:53,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 460 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2024-10-24 01:39:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2582. [2024-10-24 01:39:53,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 2578 states have (on average 1.3661753297129557) internal successors, (3522), 2581 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:53,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 3522 transitions. [2024-10-24 01:39:53,097 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 3522 transitions. Word has length 56 [2024-10-24 01:39:53,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:53,097 INFO L471 AbstractCegarLoop]: Abstraction has 2582 states and 3522 transitions. [2024-10-24 01:39:53,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:53,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 3522 transitions. [2024-10-24 01:39:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:39:53,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:53,100 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] [2024-10-24 01:39:53,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:39:53,101 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:53,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:53,101 INFO L85 PathProgramCache]: Analyzing trace with hash 474120695, now seen corresponding path program 1 times [2024-10-24 01:39:53,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:53,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977112165] [2024-10-24 01:39:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:53,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:53,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:53,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977112165] [2024-10-24 01:39:53,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977112165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:53,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:53,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:39:53,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071841068] [2024-10-24 01:39:53,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:53,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:39:53,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:53,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:39:53,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:39:53,710 INFO L87 Difference]: Start difference. First operand 2582 states and 3522 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:54,333 INFO L93 Difference]: Finished difference Result 3778 states and 5197 transitions. [2024-10-24 01:39:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:39:54,333 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-24 01:39:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:54,340 INFO L225 Difference]: With dead ends: 3778 [2024-10-24 01:39:54,340 INFO L226 Difference]: Without dead ends: 3774 [2024-10-24 01:39:54,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:39:54,342 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 2060 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:54,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 1526 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:54,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2024-10-24 01:39:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 2578. [2024-10-24 01:39:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2575 states have (on average 1.3658252427184465) internal successors, (3517), 2577 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3517 transitions. [2024-10-24 01:39:54,381 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3517 transitions. Word has length 56 [2024-10-24 01:39:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:54,381 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3517 transitions. [2024-10-24 01:39:54,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3517 transitions. [2024-10-24 01:39:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:39:54,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:54,384 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] [2024-10-24 01:39:54,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:39:54,384 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:54,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1321631968, now seen corresponding path program 1 times [2024-10-24 01:39:54,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:54,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816571088] [2024-10-24 01:39:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:54,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:54,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816571088] [2024-10-24 01:39:54,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816571088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:54,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:54,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:39:54,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191868906] [2024-10-24 01:39:54,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:54,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:39:54,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:39:54,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:39:54,933 INFO L87 Difference]: Start difference. First operand 2578 states and 3517 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:55,544 INFO L93 Difference]: Finished difference Result 3353 states and 4601 transitions. [2024-10-24 01:39:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:39:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-24 01:39:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:55,550 INFO L225 Difference]: With dead ends: 3353 [2024-10-24 01:39:55,550 INFO L226 Difference]: Without dead ends: 3245 [2024-10-24 01:39:55,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:39:55,552 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 2017 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:55,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 1649 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:55,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2024-10-24 01:39:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 2566. [2024-10-24 01:39:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 1.3662246489859595) internal successors, (3503), 2565 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3503 transitions. [2024-10-24 01:39:55,585 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3503 transitions. Word has length 56 [2024-10-24 01:39:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:55,585 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3503 transitions. [2024-10-24 01:39:55,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3503 transitions. [2024-10-24 01:39:55,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:39:55,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:55,588 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] [2024-10-24 01:39:55,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:39:55,588 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:55,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1858163223, now seen corresponding path program 1 times [2024-10-24 01:39:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606256916] [2024-10-24 01:39:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:56,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:56,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606256916] [2024-10-24 01:39:56,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606256916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:56,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:56,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:39:56,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945555562] [2024-10-24 01:39:56,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:56,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:39:56,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:56,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:39:56,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:39:56,174 INFO L87 Difference]: Start difference. First operand 2566 states and 3503 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:56,847 INFO L93 Difference]: Finished difference Result 3762 states and 5178 transitions. [2024-10-24 01:39:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:39:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-24 01:39:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:56,852 INFO L225 Difference]: With dead ends: 3762 [2024-10-24 01:39:56,852 INFO L226 Difference]: Without dead ends: 3758 [2024-10-24 01:39:56,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:39:56,854 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 1689 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:56,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 1719 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:39:56,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2024-10-24 01:39:56,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 2566. [2024-10-24 01:39:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 1.3658346333853355) internal successors, (3502), 2565 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3502 transitions. [2024-10-24 01:39:56,889 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3502 transitions. Word has length 56 [2024-10-24 01:39:56,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:56,889 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3502 transitions. [2024-10-24 01:39:56,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3502 transitions. [2024-10-24 01:39:56,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:39:56,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:56,892 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] [2024-10-24 01:39:56,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:39:56,892 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:56,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash -612654208, now seen corresponding path program 1 times [2024-10-24 01:39:56,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:56,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375156877] [2024-10-24 01:39:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:56,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375156877] [2024-10-24 01:39:56,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375156877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:56,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:56,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620651445] [2024-10-24 01:39:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:56,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:56,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:56,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:56,944 INFO L87 Difference]: Start difference. First operand 2566 states and 3502 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:56,994 INFO L93 Difference]: Finished difference Result 4736 states and 6522 transitions. [2024-10-24 01:39:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:56,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-24 01:39:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:56,999 INFO L225 Difference]: With dead ends: 4736 [2024-10-24 01:39:56,999 INFO L226 Difference]: Without dead ends: 3157 [2024-10-24 01:39:57,001 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 [2024-10-24 01:39:57,002 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 254 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:57,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 444 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:57,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2024-10-24 01:39:57,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 2470. [2024-10-24 01:39:57,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.3665451599837992) internal successors, (3374), 2469 states have internal predecessors, (3374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3374 transitions. [2024-10-24 01:39:57,035 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3374 transitions. Word has length 56 [2024-10-24 01:39:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:57,035 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3374 transitions. [2024-10-24 01:39:57,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3374 transitions. [2024-10-24 01:39:57,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:39:57,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:57,039 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] [2024-10-24 01:39:57,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:39:57,040 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:57,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 35485201, now seen corresponding path program 1 times [2024-10-24 01:39:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:57,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338310639] [2024-10-24 01:39:57,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:57,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:57,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:57,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338310639] [2024-10-24 01:39:57,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338310639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:57,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:57,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:39:57,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389117761] [2024-10-24 01:39:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:57,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:39:57,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:57,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:39:57,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:57,147 INFO L87 Difference]: Start difference. First operand 2470 states and 3374 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:57,229 INFO L93 Difference]: Finished difference Result 6002 states and 8417 transitions. [2024-10-24 01:39:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:39:57,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-24 01:39:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:57,235 INFO L225 Difference]: With dead ends: 6002 [2024-10-24 01:39:57,235 INFO L226 Difference]: Without dead ends: 4539 [2024-10-24 01:39:57,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:57,239 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 989 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:57,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 776 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:57,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2024-10-24 01:39:57,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 3842. [2024-10-24 01:39:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3842 states, 3841 states have (on average 1.3702160895600104) internal successors, (5263), 3841 states have internal predecessors, (5263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 5263 transitions. [2024-10-24 01:39:57,334 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 5263 transitions. Word has length 65 [2024-10-24 01:39:57,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:57,334 INFO L471 AbstractCegarLoop]: Abstraction has 3842 states and 5263 transitions. [2024-10-24 01:39:57,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 5263 transitions. [2024-10-24 01:39:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:39:57,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:57,340 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] [2024-10-24 01:39:57,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:39:57,340 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1707524859, now seen corresponding path program 1 times [2024-10-24 01:39:57,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:57,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239566755] [2024-10-24 01:39:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:57,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:57,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239566755] [2024-10-24 01:39:57,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239566755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:57,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:57,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:39:57,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486021059] [2024-10-24 01:39:57,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:57,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:39:57,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:39:57,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:57,463 INFO L87 Difference]: Start difference. First operand 3842 states and 5263 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:57,537 INFO L93 Difference]: Finished difference Result 3848 states and 5266 transitions. [2024-10-24 01:39:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:39:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-24 01:39:57,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:57,542 INFO L225 Difference]: With dead ends: 3848 [2024-10-24 01:39:57,542 INFO L226 Difference]: Without dead ends: 3397 [2024-10-24 01:39:57,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:57,544 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 503 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:57,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 804 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:57,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2024-10-24 01:39:57,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 3393. [2024-10-24 01:39:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3392 states have (on average 1.3744103773584906) internal successors, (4662), 3392 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4662 transitions. [2024-10-24 01:39:57,581 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4662 transitions. Word has length 66 [2024-10-24 01:39:57,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:57,582 INFO L471 AbstractCegarLoop]: Abstraction has 3393 states and 4662 transitions. [2024-10-24 01:39:57,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4662 transitions. [2024-10-24 01:39:57,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:39:57,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:57,587 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] [2024-10-24 01:39:57,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:39:57,587 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:57,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:57,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1245623863, now seen corresponding path program 1 times [2024-10-24 01:39:57,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:57,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313103707] [2024-10-24 01:39:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:57,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:57,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:57,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313103707] [2024-10-24 01:39:57,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313103707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:57,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:57,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:57,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122118896] [2024-10-24 01:39:57,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:57,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:57,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:57,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:57,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:57,707 INFO L87 Difference]: Start difference. First operand 3393 states and 4662 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:57,748 INFO L93 Difference]: Finished difference Result 7873 states and 10948 transitions. [2024-10-24 01:39:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:57,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-24 01:39:57,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:57,756 INFO L225 Difference]: With dead ends: 7873 [2024-10-24 01:39:57,756 INFO L226 Difference]: Without dead ends: 5533 [2024-10-24 01:39:57,760 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 [2024-10-24 01:39:57,761 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 151 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:57,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 549 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2024-10-24 01:39:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5227. [2024-10-24 01:39:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 1.3815537696134712) internal successors, (7220), 5226 states have internal predecessors, (7220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 7220 transitions. [2024-10-24 01:39:57,828 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 7220 transitions. Word has length 67 [2024-10-24 01:39:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:57,829 INFO L471 AbstractCegarLoop]: Abstraction has 5227 states and 7220 transitions. [2024-10-24 01:39:57,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 7220 transitions. [2024-10-24 01:39:57,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:39:57,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:57,833 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] [2024-10-24 01:39:57,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:39:57,833 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:57,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:57,834 INFO L85 PathProgramCache]: Analyzing trace with hash -44903959, now seen corresponding path program 1 times [2024-10-24 01:39:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:57,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952163445] [2024-10-24 01:39:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:57,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952163445] [2024-10-24 01:39:57,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952163445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:57,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:57,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:57,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055659905] [2024-10-24 01:39:57,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:57,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:57,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:57,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:57,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:57,932 INFO L87 Difference]: Start difference. First operand 5227 states and 7220 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:57,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:57,986 INFO L93 Difference]: Finished difference Result 12891 states and 17874 transitions. [2024-10-24 01:39:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:57,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-24 01:39:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:57,997 INFO L225 Difference]: With dead ends: 12891 [2024-10-24 01:39:57,998 INFO L226 Difference]: Without dead ends: 8465 [2024-10-24 01:39:58,006 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 [2024-10-24 01:39:58,007 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 155 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:58,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 537 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8465 states. [2024-10-24 01:39:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8465 to 7831. [2024-10-24 01:39:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7831 states, 7830 states have (on average 1.3647509578544061) internal successors, (10686), 7830 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7831 states to 7831 states and 10686 transitions. [2024-10-24 01:39:58,136 INFO L78 Accepts]: Start accepts. Automaton has 7831 states and 10686 transitions. Word has length 69 [2024-10-24 01:39:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:58,136 INFO L471 AbstractCegarLoop]: Abstraction has 7831 states and 10686 transitions. [2024-10-24 01:39:58,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7831 states and 10686 transitions. [2024-10-24 01:39:58,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:39:58,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:58,140 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] [2024-10-24 01:39:58,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:39:58,140 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:58,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:58,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1924834057, now seen corresponding path program 1 times [2024-10-24 01:39:58,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:58,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653749156] [2024-10-24 01:39:58,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:58,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:58,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653749156] [2024-10-24 01:39:58,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653749156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:58,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:58,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:58,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229733538] [2024-10-24 01:39:58,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:58,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:58,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:58,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:58,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:58,233 INFO L87 Difference]: Start difference. First operand 7831 states and 10686 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:58,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:58,310 INFO L93 Difference]: Finished difference Result 21091 states and 28952 transitions. [2024-10-24 01:39:58,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:58,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-24 01:39:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:58,333 INFO L225 Difference]: With dead ends: 21091 [2024-10-24 01:39:58,333 INFO L226 Difference]: Without dead ends: 14061 [2024-10-24 01:39:58,345 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 [2024-10-24 01:39:58,346 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 107 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:58,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 538 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14061 states. [2024-10-24 01:39:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14061 to 12843. [2024-10-24 01:39:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12843 states, 12842 states have (on average 1.361314437003582) internal successors, (17482), 12842 states have internal predecessors, (17482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12843 states to 12843 states and 17482 transitions. [2024-10-24 01:39:58,512 INFO L78 Accepts]: Start accepts. Automaton has 12843 states and 17482 transitions. Word has length 69 [2024-10-24 01:39:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:58,512 INFO L471 AbstractCegarLoop]: Abstraction has 12843 states and 17482 transitions. [2024-10-24 01:39:58,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 12843 states and 17482 transitions. [2024-10-24 01:39:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 01:39:58,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:58,515 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] [2024-10-24 01:39:58,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:39:58,516 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:58,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1192896973, now seen corresponding path program 1 times [2024-10-24 01:39:58,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:58,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358406737] [2024-10-24 01:39:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:58,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:58,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:58,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358406737] [2024-10-24 01:39:58,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358406737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:58,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:58,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:39:58,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204279319] [2024-10-24 01:39:58,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:58,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:39:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:39:58,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:39:58,781 INFO L87 Difference]: Start difference. First operand 12843 states and 17482 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:58,835 INFO L93 Difference]: Finished difference Result 14189 states and 19275 transitions. [2024-10-24 01:39:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:39:58,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-24 01:39:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:58,856 INFO L225 Difference]: With dead ends: 14189 [2024-10-24 01:39:58,856 INFO L226 Difference]: Without dead ends: 14187 [2024-10-24 01:39:58,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:39:58,863 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:58,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1343 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14187 states. [2024-10-24 01:39:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14187 to 14187. [2024-10-24 01:39:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14187 states, 14186 states have (on average 1.3270830396165234) internal successors, (18826), 14186 states have internal predecessors, (18826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14187 states to 14187 states and 18826 transitions. [2024-10-24 01:39:59,039 INFO L78 Accepts]: Start accepts. Automaton has 14187 states and 18826 transitions. Word has length 71 [2024-10-24 01:39:59,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:59,040 INFO L471 AbstractCegarLoop]: Abstraction has 14187 states and 18826 transitions. [2024-10-24 01:39:59,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:59,040 INFO L276 IsEmpty]: Start isEmpty. Operand 14187 states and 18826 transitions. [2024-10-24 01:39:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-24 01:39:59,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:59,043 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] [2024-10-24 01:39:59,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:39:59,044 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:59,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash -16724346, now seen corresponding path program 1 times [2024-10-24 01:39:59,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586316768] [2024-10-24 01:39:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:59,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:59,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586316768] [2024-10-24 01:39:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586316768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:59,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666480465] [2024-10-24 01:39:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:59,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:59,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:59,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:59,105 INFO L87 Difference]: Start difference. First operand 14187 states and 18826 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:59,209 INFO L93 Difference]: Finished difference Result 34327 states and 45620 transitions. [2024-10-24 01:39:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-10-24 01:39:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:59,240 INFO L225 Difference]: With dead ends: 34327 [2024-10-24 01:39:59,241 INFO L226 Difference]: Without dead ends: 20941 [2024-10-24 01:39:59,261 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 [2024-10-24 01:39:59,262 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 170 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:59,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 422 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:59,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20941 states. [2024-10-24 01:39:59,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20941 to 20715. [2024-10-24 01:39:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20715 states, 20714 states have (on average 1.3066525055518008) internal successors, (27066), 20714 states have internal predecessors, (27066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20715 states to 20715 states and 27066 transitions. [2024-10-24 01:39:59,755 INFO L78 Accepts]: Start accepts. Automaton has 20715 states and 27066 transitions. Word has length 72 [2024-10-24 01:39:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:59,755 INFO L471 AbstractCegarLoop]: Abstraction has 20715 states and 27066 transitions. [2024-10-24 01:39:59,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:39:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 20715 states and 27066 transitions. [2024-10-24 01:39:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-24 01:39:59,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:59,760 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] [2024-10-24 01:39:59,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:39:59,760 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:39:59,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1274470703, now seen corresponding path program 1 times [2024-10-24 01:39:59,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:59,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520653747] [2024-10-24 01:39:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:39:59,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:59,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520653747] [2024-10-24 01:39:59,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520653747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:59,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:59,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:39:59,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671844543] [2024-10-24 01:39:59,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:59,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:39:59,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:59,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:39:59,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:39:59,890 INFO L87 Difference]: Start difference. First operand 20715 states and 27066 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:00,039 INFO L93 Difference]: Finished difference Result 30635 states and 40267 transitions. [2024-10-24 01:40:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:00,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-10-24 01:40:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:00,074 INFO L225 Difference]: With dead ends: 30635 [2024-10-24 01:40:00,075 INFO L226 Difference]: Without dead ends: 26061 [2024-10-24 01:40:00,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:00,090 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 610 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:00,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 856 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26061 states. [2024-10-24 01:40:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26061 to 23707. [2024-10-24 01:40:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23707 states, 23706 states have (on average 1.3037205770690965) internal successors, (30906), 23706 states have internal predecessors, (30906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:00,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23707 states to 23707 states and 30906 transitions. [2024-10-24 01:40:00,570 INFO L78 Accepts]: Start accepts. Automaton has 23707 states and 30906 transitions. Word has length 73 [2024-10-24 01:40:00,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:00,570 INFO L471 AbstractCegarLoop]: Abstraction has 23707 states and 30906 transitions. [2024-10-24 01:40:00,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:00,570 INFO L276 IsEmpty]: Start isEmpty. Operand 23707 states and 30906 transitions. [2024-10-24 01:40:00,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-24 01:40:00,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:00,574 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] [2024-10-24 01:40:00,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:40:00,574 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:00,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2035560395, now seen corresponding path program 1 times [2024-10-24 01:40:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:00,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149022570] [2024-10-24 01:40:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:00,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:00,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149022570] [2024-10-24 01:40:00,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149022570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:00,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:00,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:00,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276864385] [2024-10-24 01:40:00,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:00,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:00,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:00,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:00,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:00,789 INFO L87 Difference]: Start difference. First operand 23707 states and 30906 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:00,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:00,922 INFO L93 Difference]: Finished difference Result 32071 states and 42039 transitions. [2024-10-24 01:40:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:00,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-10-24 01:40:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:00,952 INFO L225 Difference]: With dead ends: 32071 [2024-10-24 01:40:00,952 INFO L226 Difference]: Without dead ends: 27497 [2024-10-24 01:40:00,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:00,965 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 623 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:00,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 848 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:00,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27497 states. [2024-10-24 01:40:01,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27497 to 26683. [2024-10-24 01:40:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26683 states, 26682 states have (on average 1.301514129375609) internal successors, (34727), 26682 states have internal predecessors, (34727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26683 states to 26683 states and 34727 transitions. [2024-10-24 01:40:01,264 INFO L78 Accepts]: Start accepts. Automaton has 26683 states and 34727 transitions. Word has length 75 [2024-10-24 01:40:01,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:01,265 INFO L471 AbstractCegarLoop]: Abstraction has 26683 states and 34727 transitions. [2024-10-24 01:40:01,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 26683 states and 34727 transitions. [2024-10-24 01:40:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:40:01,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:01,269 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] [2024-10-24 01:40:01,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:40:01,269 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:01,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:01,269 INFO L85 PathProgramCache]: Analyzing trace with hash -490024547, now seen corresponding path program 1 times [2024-10-24 01:40:01,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:01,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94965995] [2024-10-24 01:40:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:01,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:01,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:01,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94965995] [2024-10-24 01:40:01,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94965995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:01,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:01,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:01,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47335635] [2024-10-24 01:40:01,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:01,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:01,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:01,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:01,374 INFO L87 Difference]: Start difference. First operand 26683 states and 34727 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:01,665 INFO L93 Difference]: Finished difference Result 37923 states and 49683 transitions. [2024-10-24 01:40:01,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:01,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:40:01,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:01,707 INFO L225 Difference]: With dead ends: 37923 [2024-10-24 01:40:01,708 INFO L226 Difference]: Without dead ends: 31153 [2024-10-24 01:40:01,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:01,726 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 642 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:01,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 836 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31153 states. [2024-10-24 01:40:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31153 to 30339. [2024-10-24 01:40:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30339 states, 30338 states have (on average 1.298140945349067) internal successors, (39383), 30338 states have internal predecessors, (39383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30339 states to 30339 states and 39383 transitions. [2024-10-24 01:40:02,146 INFO L78 Accepts]: Start accepts. Automaton has 30339 states and 39383 transitions. Word has length 76 [2024-10-24 01:40:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:02,147 INFO L471 AbstractCegarLoop]: Abstraction has 30339 states and 39383 transitions. [2024-10-24 01:40:02,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 30339 states and 39383 transitions. [2024-10-24 01:40:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 01:40:02,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:02,156 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:02,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:40:02,156 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:02,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:02,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1795661640, now seen corresponding path program 1 times [2024-10-24 01:40:02,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:02,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264252555] [2024-10-24 01:40:02,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:02,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 01:40:02,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:02,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264252555] [2024-10-24 01:40:02,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264252555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:02,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:02,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:40:02,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192843325] [2024-10-24 01:40:02,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:02,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:40:02,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:02,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:40:02,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:40:02,539 INFO L87 Difference]: Start difference. First operand 30339 states and 39383 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:03,118 INFO L93 Difference]: Finished difference Result 60654 states and 78448 transitions. [2024-10-24 01:40:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:40:03,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 91 [2024-10-24 01:40:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:03,155 INFO L225 Difference]: With dead ends: 60654 [2024-10-24 01:40:03,155 INFO L226 Difference]: Without dead ends: 39340 [2024-10-24 01:40:03,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:03,168 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1112 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:03,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 690 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:03,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39340 states. [2024-10-24 01:40:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39340 to 30223. [2024-10-24 01:40:03,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30223 states, 30222 states have (on average 1.298358811461849) internal successors, (39239), 30222 states have internal predecessors, (39239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30223 states to 30223 states and 39239 transitions. [2024-10-24 01:40:03,573 INFO L78 Accepts]: Start accepts. Automaton has 30223 states and 39239 transitions. Word has length 91 [2024-10-24 01:40:03,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:03,574 INFO L471 AbstractCegarLoop]: Abstraction has 30223 states and 39239 transitions. [2024-10-24 01:40:03,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 30223 states and 39239 transitions. [2024-10-24 01:40:03,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 01:40:03,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:03,583 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:03,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 01:40:03,583 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:03,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:03,584 INFO L85 PathProgramCache]: Analyzing trace with hash -732608151, now seen corresponding path program 1 times [2024-10-24 01:40:03,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:03,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128662469] [2024-10-24 01:40:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:03,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 01:40:04,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:04,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128662469] [2024-10-24 01:40:04,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128662469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:04,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:04,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:40:04,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130371635] [2024-10-24 01:40:04,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:04,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:40:04,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:04,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:40:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:40:04,016 INFO L87 Difference]: Start difference. First operand 30223 states and 39239 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:04,582 INFO L93 Difference]: Finished difference Result 62205 states and 80701 transitions. [2024-10-24 01:40:04,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:40:04,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 91 [2024-10-24 01:40:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:04,631 INFO L225 Difference]: With dead ends: 62205 [2024-10-24 01:40:04,632 INFO L226 Difference]: Without dead ends: 46639 [2024-10-24 01:40:04,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:04,654 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1086 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:04,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 780 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:04,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46639 states. [2024-10-24 01:40:05,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46639 to 30177. [2024-10-24 01:40:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30177 states, 30176 states have (on average 1.2983828207847297) internal successors, (39180), 30176 states have internal predecessors, (39180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30177 states to 30177 states and 39180 transitions. [2024-10-24 01:40:05,225 INFO L78 Accepts]: Start accepts. Automaton has 30177 states and 39180 transitions. Word has length 91 [2024-10-24 01:40:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:05,226 INFO L471 AbstractCegarLoop]: Abstraction has 30177 states and 39180 transitions. [2024-10-24 01:40:05,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 30177 states and 39180 transitions. [2024-10-24 01:40:05,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 01:40:05,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:05,235 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:05,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 01:40:05,236 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:05,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:05,236 INFO L85 PathProgramCache]: Analyzing trace with hash -365813274, now seen corresponding path program 1 times [2024-10-24 01:40:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:05,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786427308] [2024-10-24 01:40:05,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:05,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:05,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:05,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786427308] [2024-10-24 01:40:05,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786427308] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:05,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579515712] [2024-10-24 01:40:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:05,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:05,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:05,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:40:05,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 01:40:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:05,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 01:40:05,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:07,143 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:07,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:08,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579515712] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:08,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:08,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 28 [2024-10-24 01:40:08,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114936855] [2024-10-24 01:40:08,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:08,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 01:40:08,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:08,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 01:40:08,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2024-10-24 01:40:08,450 INFO L87 Difference]: Start difference. First operand 30177 states and 39180 transitions. Second operand has 29 states, 29 states have (on average 7.931034482758621) internal successors, (230), 28 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:19,917 INFO L93 Difference]: Finished difference Result 207059 states and 263891 transitions. [2024-10-24 01:40:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-10-24 01:40:19,918 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.931034482758621) internal successors, (230), 28 states have internal predecessors, (230), 0 states have call successors, (0), 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 92 [2024-10-24 01:40:19,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:20,137 INFO L225 Difference]: With dead ends: 207059 [2024-10-24 01:40:20,137 INFO L226 Difference]: Without dead ends: 191153 [2024-10-24 01:40:20,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14876 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=6348, Invalid=33852, Unknown=0, NotChecked=0, Total=40200 [2024-10-24 01:40:20,382 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 6938 mSDsluCounter, 6636 mSDsCounter, 0 mSdLazyCounter, 6481 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6938 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 6616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 6481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:20,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6938 Valid, 7116 Invalid, 6616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 6481 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-24 01:40:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191153 states. [2024-10-24 01:40:21,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191153 to 30680. [2024-10-24 01:40:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30680 states, 30679 states have (on average 1.2975325140975913) internal successors, (39807), 30679 states have internal predecessors, (39807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30680 states to 30680 states and 39807 transitions. [2024-10-24 01:40:21,580 INFO L78 Accepts]: Start accepts. Automaton has 30680 states and 39807 transitions. Word has length 92 [2024-10-24 01:40:21,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:21,580 INFO L471 AbstractCegarLoop]: Abstraction has 30680 states and 39807 transitions. [2024-10-24 01:40:21,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.931034482758621) internal successors, (230), 28 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,581 INFO L276 IsEmpty]: Start isEmpty. Operand 30680 states and 39807 transitions. [2024-10-24 01:40:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 01:40:21,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:21,594 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:21,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 01:40:21,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-10-24 01:40:21,795 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:21,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:21,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1504612839, now seen corresponding path program 1 times [2024-10-24 01:40:21,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:21,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956786895] [2024-10-24 01:40:21,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:21,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:22,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956786895] [2024-10-24 01:40:22,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956786895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:22,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:22,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:40:22,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137511792] [2024-10-24 01:40:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:22,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:40:22,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:40:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:40:22,172 INFO L87 Difference]: Start difference. First operand 30680 states and 39807 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:22,818 INFO L93 Difference]: Finished difference Result 71436 states and 92356 transitions. [2024-10-24 01:40:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:40:22,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-10-24 01:40:22,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:22,886 INFO L225 Difference]: With dead ends: 71436 [2024-10-24 01:40:22,886 INFO L226 Difference]: Without dead ends: 55943 [2024-10-24 01:40:22,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:40:22,913 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1162 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:22,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1011 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55943 states. [2024-10-24 01:40:23,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55943 to 48476. [2024-10-24 01:40:23,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48476 states, 48475 states have (on average 1.29706034038164) internal successors, (62875), 48475 states have internal predecessors, (62875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48476 states to 48476 states and 62875 transitions. [2024-10-24 01:40:23,566 INFO L78 Accepts]: Start accepts. Automaton has 48476 states and 62875 transitions. Word has length 92 [2024-10-24 01:40:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:23,566 INFO L471 AbstractCegarLoop]: Abstraction has 48476 states and 62875 transitions. [2024-10-24 01:40:23,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 48476 states and 62875 transitions. [2024-10-24 01:40:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 01:40:23,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:23,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:23,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 01:40:23,576 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:23,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:23,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1675726985, now seen corresponding path program 1 times [2024-10-24 01:40:23,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:23,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446140092] [2024-10-24 01:40:23,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:23,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:24,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:24,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446140092] [2024-10-24 01:40:24,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446140092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:24,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098100209] [2024-10-24 01:40:24,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:24,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:24,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:40:24,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 01:40:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:24,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 01:40:24,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:25,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:26,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098100209] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:26,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:26,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 28 [2024-10-24 01:40:26,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58602429] [2024-10-24 01:40:26,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:26,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 01:40:26,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:26,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 01:40:26,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2024-10-24 01:40:26,086 INFO L87 Difference]: Start difference. First operand 48476 states and 62875 transitions. Second operand has 29 states, 29 states have (on average 8.241379310344827) internal successors, (239), 28 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:34,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:34,731 INFO L93 Difference]: Finished difference Result 268268 states and 343420 transitions. [2024-10-24 01:40:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2024-10-24 01:40:34,731 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.241379310344827) internal successors, (239), 28 states have internal predecessors, (239), 0 states have call successors, (0), 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 92 [2024-10-24 01:40:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:35,046 INFO L225 Difference]: With dead ends: 268268 [2024-10-24 01:40:35,046 INFO L226 Difference]: Without dead ends: 245018 [2024-10-24 01:40:35,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12158 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=5682, Invalid=25824, Unknown=0, NotChecked=0, Total=31506 [2024-10-24 01:40:35,103 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 5102 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 5577 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5102 SdHoareTripleChecker+Valid, 5626 SdHoareTripleChecker+Invalid, 5703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 5577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:35,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5102 Valid, 5626 Invalid, 5703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 5577 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 01:40:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245018 states. [2024-10-24 01:40:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245018 to 93726. [2024-10-24 01:40:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93726 states, 93725 states have (on average 1.2963670312083222) internal successors, (121502), 93725 states have internal predecessors, (121502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93726 states to 93726 states and 121502 transitions. [2024-10-24 01:40:37,410 INFO L78 Accepts]: Start accepts. Automaton has 93726 states and 121502 transitions. Word has length 92 [2024-10-24 01:40:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:37,411 INFO L471 AbstractCegarLoop]: Abstraction has 93726 states and 121502 transitions. [2024-10-24 01:40:37,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.241379310344827) internal successors, (239), 28 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 93726 states and 121502 transitions. [2024-10-24 01:40:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 01:40:37,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:37,426 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:37,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 01:40:37,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-24 01:40:37,627 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:37,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1965411061, now seen corresponding path program 1 times [2024-10-24 01:40:37,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:37,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890101792] [2024-10-24 01:40:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:37,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 01:40:37,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:37,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890101792] [2024-10-24 01:40:37,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890101792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:37,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:37,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:37,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130864436] [2024-10-24 01:40:37,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:37,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:37,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:37,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:37,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:37,694 INFO L87 Difference]: Start difference. First operand 93726 states and 121502 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:38,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:38,590 INFO L93 Difference]: Finished difference Result 185039 states and 240217 transitions. [2024-10-24 01:40:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:38,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 93 [2024-10-24 01:40:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:38,698 INFO L225 Difference]: With dead ends: 185039 [2024-10-24 01:40:38,698 INFO L226 Difference]: Without dead ends: 93071 [2024-10-24 01:40:38,756 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 [2024-10-24 01:40:38,757 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 213 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:38,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 254 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:40:38,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93071 states. [2024-10-24 01:40:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93071 to 93071. [2024-10-24 01:40:40,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93071 states, 93070 states have (on average 1.2816482217685612) internal successors, (119283), 93070 states have internal predecessors, (119283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93071 states to 93071 states and 119283 transitions. [2024-10-24 01:40:40,300 INFO L78 Accepts]: Start accepts. Automaton has 93071 states and 119283 transitions. Word has length 93 [2024-10-24 01:40:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:40,301 INFO L471 AbstractCegarLoop]: Abstraction has 93071 states and 119283 transitions. [2024-10-24 01:40:40,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 93071 states and 119283 transitions. [2024-10-24 01:40:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 01:40:40,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:40,313 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:40,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 01:40:40,313 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:40,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash -225364972, now seen corresponding path program 1 times [2024-10-24 01:40:40,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264939904] [2024-10-24 01:40:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:40,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:40,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:40,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264939904] [2024-10-24 01:40:40,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264939904] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:40,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638388404] [2024-10-24 01:40:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:40,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:40,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:40,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:40:40,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 01:40:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:40,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 01:40:40,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:41,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:41,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:41,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638388404] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:41,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:41,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 10] total 17 [2024-10-24 01:40:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24309168] [2024-10-24 01:40:41,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:41,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 01:40:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 01:40:41,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:40:41,579 INFO L87 Difference]: Start difference. First operand 93071 states and 119283 transitions. Second operand has 17 states, 17 states have (on average 12.705882352941176) internal successors, (216), 17 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:45,307 INFO L93 Difference]: Finished difference Result 534849 states and 679594 transitions. [2024-10-24 01:40:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-10-24 01:40:45,307 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 12.705882352941176) internal successors, (216), 17 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-24 01:40:45,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:46,002 INFO L225 Difference]: With dead ends: 534849 [2024-10-24 01:40:46,002 INFO L226 Difference]: Without dead ends: 443751 [2024-10-24 01:40:46,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1181, Invalid=4075, Unknown=0, NotChecked=0, Total=5256 [2024-10-24 01:40:46,656 INFO L432 NwaCegarLoop]: 1018 mSDtfsCounter, 4563 mSDsluCounter, 4856 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4563 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:46,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4563 Valid, 5874 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:40:46,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443751 states. [2024-10-24 01:40:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443751 to 333509. [2024-10-24 01:40:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333509 states, 333508 states have (on average 1.2670820490063206) internal successors, (422582), 333508 states have internal predecessors, (422582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)