./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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:44:39,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:44:39,202 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:44:39,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:44:39,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:44:39,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:44:39,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:44:39,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:44:39,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:44:39,222 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:44:39,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:44:39,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:44:39,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:44:39,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:44:39,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:44:39,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:44:39,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:44:39,225 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:44:39,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:44:39,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:44:39,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:44:39,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:44:39,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:44:39,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:44:39,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:44:39,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:44:39,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:44:39,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:44:39,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:44:39,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:44:39,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:44:39,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:44:39,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:44:39,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:44:39,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:44:39,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:44:39,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:44:39,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:44:39,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:44:39,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:44:39,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:44:39,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:44:39,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 [2024-11-19 22:44:39,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:44:39,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:44:39,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:44:39,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:44:39,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:44:39,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-19 22:44:40,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:44:41,120 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:44:41,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-19 22:44:41,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f134c2247/9495113704e246cf873246407afe2fc1/FLAG7f50519cb [2024-11-19 22:44:41,426 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f134c2247/9495113704e246cf873246407afe2fc1 [2024-11-19 22:44:41,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:44:41,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:44:41,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:44:41,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:44:41,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:44:41,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:44:41" (1/1) ... [2024-11-19 22:44:41,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a381f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:41, skipping insertion in model container [2024-11-19 22:44:41,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:44:41" (1/1) ... [2024-11-19 22:44:41,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:44:41,792 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-11-19 22:44:41,845 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-11-19 22:44:41,856 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-11-19 22:44:41,860 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-11-19 22:44:42,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:44:42,020 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:44:42,041 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-11-19 22:44:42,051 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-11-19 22:44:42,055 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-11-19 22:44:42,061 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-11-19 22:44:42,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:44:42,149 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:44:42,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42 WrapperNode [2024-11-19 22:44:42,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:44:42,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:44:42,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:44:42,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:44:42,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,280 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2803 [2024-11-19 22:44:42,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:44:42,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:44:42,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:44:42,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:44:42,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,337 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 22:44:42,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:44:42,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:44:42,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:44:42,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:44:42,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (1/1) ... [2024-11-19 22:44:42,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:44:42,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:44:42,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 22:44:42,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 22:44:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:44:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:44:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:44:42,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:44:42,654 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:44:42,656 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:44:43,727 INFO L? ?]: Removed 482 outVars from TransFormulas that were not future-live. [2024-11-19 22:44:43,728 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:44:43,744 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:44:43,745 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 22:44:43,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:44:43 BoogieIcfgContainer [2024-11-19 22:44:43,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:44:43,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:44:43,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:44:43,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:44:43,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:44:41" (1/3) ... [2024-11-19 22:44:43,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b090c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:44:43, skipping insertion in model container [2024-11-19 22:44:43,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:44:42" (2/3) ... [2024-11-19 22:44:43,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b090c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:44:43, skipping insertion in model container [2024-11-19 22:44:43,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:44:43" (3/3) ... [2024-11-19 22:44:43,751 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-19 22:44:43,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:44:43,766 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 22:44:43,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:44:43,818 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;@1140b8b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:44:43,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 22:44:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:43,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 22:44:43,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:43,836 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] [2024-11-19 22:44:43,836 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)] === [2024-11-19 22:44:43,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash 881754525, now seen corresponding path program 1 times [2024-11-19 22:44:43,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:43,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176208512] [2024-11-19 22:44:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:43,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:44,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:44,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176208512] [2024-11-19 22:44:44,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176208512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:44,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:44,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025725544] [2024-11-19 22:44:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:44,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:44,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:44,202 INFO L87 Difference]: Start difference. First operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 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) [2024-11-19 22:44:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:44,384 INFO L93 Difference]: Finished difference Result 690 states and 1215 transitions. [2024-11-19 22:44:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:44,390 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 [2024-11-19 22:44:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:44,418 INFO L225 Difference]: With dead ends: 690 [2024-11-19 22:44:44,418 INFO L226 Difference]: Without dead ends: 546 [2024-11-19 22:44:44,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:44,428 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 422 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:44,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1360 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:44:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-19 22:44:44,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 540. [2024-11-19 22:44:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 536 states have (on average 1.333955223880597) internal successors, (715), 539 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 715 transitions. [2024-11-19 22:44:44,497 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 715 transitions. Word has length 50 [2024-11-19 22:44:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:44,497 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 715 transitions. [2024-11-19 22:44:44,497 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) [2024-11-19 22:44:44,498 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 715 transitions. [2024-11-19 22:44:44,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 22:44:44,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:44,500 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] [2024-11-19 22:44:44,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:44:44,501 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:44,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash -88586633, now seen corresponding path program 1 times [2024-11-19 22:44:44,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490281536] [2024-11-19 22:44:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:44,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:44,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490281536] [2024-11-19 22:44:44,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490281536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:44,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:44,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:44,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455422727] [2024-11-19 22:44:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:44,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:44,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:44,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:44,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:44,605 INFO L87 Difference]: Start difference. First operand 540 states and 715 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) [2024-11-19 22:44:44,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:44,648 INFO L93 Difference]: Finished difference Result 955 states and 1317 transitions. [2024-11-19 22:44:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:44,648 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 [2024-11-19 22:44:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:44,651 INFO L225 Difference]: With dead ends: 955 [2024-11-19 22:44:44,651 INFO L226 Difference]: Without dead ends: 714 [2024-11-19 22:44:44,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:44,659 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 236 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:44,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1018 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:44,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-19 22:44:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 708. [2024-11-19 22:44:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 704 states have (on average 1.3536931818181819) internal successors, (953), 707 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 953 transitions. [2024-11-19 22:44:44,723 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 953 transitions. Word has length 50 [2024-11-19 22:44:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:44,724 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 953 transitions. [2024-11-19 22:44:44,724 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) [2024-11-19 22:44:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 953 transitions. [2024-11-19 22:44:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 22:44:44,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:44,728 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] [2024-11-19 22:44:44,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:44:44,728 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:44,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:44,729 INFO L85 PathProgramCache]: Analyzing trace with hash 301591798, now seen corresponding path program 1 times [2024-11-19 22:44:44,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:44,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064071326] [2024-11-19 22:44:44,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:44,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:44,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:44,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064071326] [2024-11-19 22:44:44,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064071326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:44,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:44,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:44,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081814595] [2024-11-19 22:44:44,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:44,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:44,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:44,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:44,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:44,805 INFO L87 Difference]: Start difference. First operand 708 states and 953 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) [2024-11-19 22:44:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:44,856 INFO L93 Difference]: Finished difference Result 1364 states and 1888 transitions. [2024-11-19 22:44:44,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:44,862 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 [2024-11-19 22:44:44,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:44,866 INFO L225 Difference]: With dead ends: 1364 [2024-11-19 22:44:44,866 INFO L226 Difference]: Without dead ends: 1035 [2024-11-19 22:44:44,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:44,871 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 297 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:44,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 994 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-19 22:44:44,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1028. [2024-11-19 22:44:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1024 states have (on average 1.3642578125) internal successors, (1397), 1027 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:44,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1397 transitions. [2024-11-19 22:44:44,899 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1397 transitions. Word has length 50 [2024-11-19 22:44:44,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:44,902 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1397 transitions. [2024-11-19 22:44:44,902 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) [2024-11-19 22:44:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1397 transitions. [2024-11-19 22:44:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 22:44:44,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:44,905 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] [2024-11-19 22:44:44,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:44:44,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:44,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash 157307916, now seen corresponding path program 1 times [2024-11-19 22:44:44,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:44,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113172364] [2024-11-19 22:44:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:44,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:45,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113172364] [2024-11-19 22:44:45,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113172364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:45,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:45,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:44:45,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500523498] [2024-11-19 22:44:45,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:45,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:45,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:45,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:45,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:45,083 INFO L87 Difference]: Start difference. First operand 1028 states and 1397 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 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) [2024-11-19 22:44:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:45,393 INFO L93 Difference]: Finished difference Result 2117 states and 2920 transitions. [2024-11-19 22:44:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 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 [2024-11-19 22:44:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:45,398 INFO L225 Difference]: With dead ends: 2117 [2024-11-19 22:44:45,398 INFO L226 Difference]: Without dead ends: 1255 [2024-11-19 22:44:45,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:45,402 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1690 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:45,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 399 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:44:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-19 22:44:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1245. [2024-11-19 22:44:45,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1241 states have (on average 1.3738920225624496) internal successors, (1705), 1244 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1705 transitions. [2024-11-19 22:44:45,432 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1705 transitions. Word has length 50 [2024-11-19 22:44:45,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:45,432 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1705 transitions. [2024-11-19 22:44:45,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 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) [2024-11-19 22:44:45,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1705 transitions. [2024-11-19 22:44:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 22:44:45,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:45,435 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] [2024-11-19 22:44:45,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:44:45,436 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)] === [2024-11-19 22:44:45,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:45,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1701829494, now seen corresponding path program 1 times [2024-11-19 22:44:45,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:45,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861193649] [2024-11-19 22:44:45,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:45,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:45,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:45,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861193649] [2024-11-19 22:44:45,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861193649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:45,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:45,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:44:45,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873760370] [2024-11-19 22:44:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:45,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:45,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:45,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:45,591 INFO L87 Difference]: Start difference. First operand 1245 states and 1705 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) [2024-11-19 22:44:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:45,827 INFO L93 Difference]: Finished difference Result 2643 states and 3662 transitions. [2024-11-19 22:44:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:45,827 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 [2024-11-19 22:44:45,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:45,833 INFO L225 Difference]: With dead ends: 2643 [2024-11-19 22:44:45,833 INFO L226 Difference]: Without dead ends: 1579 [2024-11-19 22:44:45,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:45,836 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1442 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:45,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 342 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:44:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-11-19 22:44:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1177. [2024-11-19 22:44:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1173 states have (on average 1.3725490196078431) internal successors, (1610), 1176 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1610 transitions. [2024-11-19 22:44:45,861 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1610 transitions. Word has length 51 [2024-11-19 22:44:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:45,861 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1610 transitions. [2024-11-19 22:44:45,861 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) [2024-11-19 22:44:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1610 transitions. [2024-11-19 22:44:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 22:44:45,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:45,863 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] [2024-11-19 22:44:45,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:44:45,864 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:45,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1906241974, now seen corresponding path program 1 times [2024-11-19 22:44:45,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:45,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234065081] [2024-11-19 22:44:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:45,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:45,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234065081] [2024-11-19 22:44:45,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234065081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:45,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:45,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:44:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049283143] [2024-11-19 22:44:45,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:45,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:45,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:45,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:45,983 INFO L87 Difference]: Start difference. First operand 1177 states and 1610 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) [2024-11-19 22:44:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:46,185 INFO L93 Difference]: Finished difference Result 2592 states and 3567 transitions. [2024-11-19 22:44:46,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:46,185 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 [2024-11-19 22:44:46,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:46,192 INFO L225 Difference]: With dead ends: 2592 [2024-11-19 22:44:46,193 INFO L226 Difference]: Without dead ends: 1534 [2024-11-19 22:44:46,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:46,196 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1280 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:46,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 316 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:44:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2024-11-19 22:44:46,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1521. [2024-11-19 22:44:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1517 states have (on average 1.3645352669742914) internal successors, (2070), 1520 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2070 transitions. [2024-11-19 22:44:46,221 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2070 transitions. Word has length 51 [2024-11-19 22:44:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:46,221 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 2070 transitions. [2024-11-19 22:44:46,221 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) [2024-11-19 22:44:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2070 transitions. [2024-11-19 22:44:46,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-19 22:44:46,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:46,223 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] [2024-11-19 22:44:46,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:44:46,223 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:46,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1198562519, now seen corresponding path program 1 times [2024-11-19 22:44:46,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:46,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712127958] [2024-11-19 22:44:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:46,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:46,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:46,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712127958] [2024-11-19 22:44:46,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712127958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:46,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:46,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:44:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456847709] [2024-11-19 22:44:46,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:46,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:44:46,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:46,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:44:46,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:46,370 INFO L87 Difference]: Start difference. First operand 1521 states and 2070 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) [2024-11-19 22:44:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:46,697 INFO L93 Difference]: Finished difference Result 3020 states and 4171 transitions. [2024-11-19 22:44:46,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:44:46,697 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 [2024-11-19 22:44:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:46,712 INFO L225 Difference]: With dead ends: 3020 [2024-11-19 22:44:46,712 INFO L226 Difference]: Without dead ends: 2587 [2024-11-19 22:44:46,714 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 [2024-11-19 22:44:46,714 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1846 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:46,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 611 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:44:46,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2024-11-19 22:44:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1533. [2024-11-19 22:44:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1529 states have (on average 1.3642903858731197) internal successors, (2086), 1532 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:46,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2086 transitions. [2024-11-19 22:44:46,775 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2086 transitions. Word has length 52 [2024-11-19 22:44:46,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:46,775 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 2086 transitions. [2024-11-19 22:44:46,775 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) [2024-11-19 22:44:46,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2086 transitions. [2024-11-19 22:44:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-19 22:44:46,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:46,780 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] [2024-11-19 22:44:46,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:44:46,781 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:46,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:46,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1743373944, now seen corresponding path program 1 times [2024-11-19 22:44:46,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:46,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020018033] [2024-11-19 22:44:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:46,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:46,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:46,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020018033] [2024-11-19 22:44:46,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020018033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:46,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:46,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:44:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574874206] [2024-11-19 22:44:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:46,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:44:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:44:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:46,883 INFO L87 Difference]: Start difference. First operand 1533 states and 2086 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) [2024-11-19 22:44:47,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:47,184 INFO L93 Difference]: Finished difference Result 3012 states and 4152 transitions. [2024-11-19 22:44:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:44:47,185 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 [2024-11-19 22:44:47,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:47,190 INFO L225 Difference]: With dead ends: 3012 [2024-11-19 22:44:47,190 INFO L226 Difference]: Without dead ends: 2291 [2024-11-19 22:44:47,191 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 [2024-11-19 22:44:47,191 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1593 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:47,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 571 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:44:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-11-19 22:44:47,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1547. [2024-11-19 22:44:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1543 states have (on average 1.3635774465327284) internal successors, (2104), 1546 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2104 transitions. [2024-11-19 22:44:47,243 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2104 transitions. Word has length 53 [2024-11-19 22:44:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:47,243 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2104 transitions. [2024-11-19 22:44:47,243 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) [2024-11-19 22:44:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2104 transitions. [2024-11-19 22:44:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-19 22:44:47,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:47,244 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] [2024-11-19 22:44:47,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:44:47,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:47,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1359815673, now seen corresponding path program 1 times [2024-11-19 22:44:47,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:47,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144637604] [2024-11-19 22:44:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:47,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:47,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144637604] [2024-11-19 22:44:47,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144637604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:47,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:47,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:44:47,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25945614] [2024-11-19 22:44:47,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:47,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:44:47,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:47,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:44:47,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:47,339 INFO L87 Difference]: Start difference. First operand 1547 states and 2104 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) [2024-11-19 22:44:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:47,702 INFO L93 Difference]: Finished difference Result 3306 states and 4587 transitions. [2024-11-19 22:44:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:44:47,703 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 [2024-11-19 22:44:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:47,708 INFO L225 Difference]: With dead ends: 3306 [2024-11-19 22:44:47,709 INFO L226 Difference]: Without dead ends: 2756 [2024-11-19 22:44:47,710 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 [2024-11-19 22:44:47,710 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1718 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:47,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 592 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:44:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2024-11-19 22:44:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1569. [2024-11-19 22:44:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3642172523961662) internal successors, (2135), 1568 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2135 transitions. [2024-11-19 22:44:47,737 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2135 transitions. Word has length 53 [2024-11-19 22:44:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:47,737 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2135 transitions. [2024-11-19 22:44:47,737 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) [2024-11-19 22:44:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2135 transitions. [2024-11-19 22:44:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-19 22:44:47,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:47,739 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] [2024-11-19 22:44:47,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:44:47,739 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)] === [2024-11-19 22:44:47,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1681497036, now seen corresponding path program 1 times [2024-11-19 22:44:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998332620] [2024-11-19 22:44:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:47,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:47,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998332620] [2024-11-19 22:44:47,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998332620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:47,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:47,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:44:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979985289] [2024-11-19 22:44:47,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:47,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:44:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:44:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:44:47,970 INFO L87 Difference]: Start difference. First operand 1569 states and 2135 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2024-11-19 22:44:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:48,376 INFO L93 Difference]: Finished difference Result 3264 states and 4520 transitions. [2024-11-19 22:44:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:44:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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 [2024-11-19 22:44:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:48,381 INFO L225 Difference]: With dead ends: 3264 [2024-11-19 22:44:48,382 INFO L226 Difference]: Without dead ends: 2214 [2024-11-19 22:44:48,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:44:48,383 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1831 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:48,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 724 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:44:48,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-19 22:44:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1569. [2024-11-19 22:44:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3610223642172523) internal successors, (2130), 1568 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2130 transitions. [2024-11-19 22:44:48,404 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2130 transitions. Word has length 54 [2024-11-19 22:44:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:48,404 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2130 transitions. [2024-11-19 22:44:48,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2024-11-19 22:44:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2130 transitions. [2024-11-19 22:44:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-19 22:44:48,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:48,405 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] [2024-11-19 22:44:48,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:44:48,405 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)] === [2024-11-19 22:44:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 711155878, now seen corresponding path program 1 times [2024-11-19 22:44:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325950366] [2024-11-19 22:44:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:48,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:48,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325950366] [2024-11-19 22:44:48,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325950366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:48,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:48,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:44:48,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949598053] [2024-11-19 22:44:48,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:48,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:44:48,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:44:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:44:48,615 INFO L87 Difference]: Start difference. First operand 1569 states and 2130 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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) [2024-11-19 22:44:49,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:49,214 INFO L93 Difference]: Finished difference Result 3631 states and 5036 transitions. [2024-11-19 22:44:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 22:44:49,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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 [2024-11-19 22:44:49,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:49,221 INFO L225 Difference]: With dead ends: 3631 [2024-11-19 22:44:49,221 INFO L226 Difference]: Without dead ends: 2709 [2024-11-19 22:44:49,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:44:49,223 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1659 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:49,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 1224 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 22:44:49,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2024-11-19 22:44:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 1540. [2024-11-19 22:44:49,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3600260416666667) internal successors, (2089), 1539 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2089 transitions. [2024-11-19 22:44:49,253 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2089 transitions. Word has length 54 [2024-11-19 22:44:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:49,253 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2089 transitions. [2024-11-19 22:44:49,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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) [2024-11-19 22:44:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2089 transitions. [2024-11-19 22:44:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-19 22:44:49,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:49,256 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] [2024-11-19 22:44:49,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:44:49,256 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)] === [2024-11-19 22:44:49,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash -839465653, now seen corresponding path program 1 times [2024-11-19 22:44:49,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:49,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393217275] [2024-11-19 22:44:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:49,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:49,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:49,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393217275] [2024-11-19 22:44:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393217275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:49,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:49,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:44:49,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824172398] [2024-11-19 22:44:49,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:49,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:44:49,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:49,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:44:49,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:44:49,430 INFO L87 Difference]: Start difference. First operand 1540 states and 2089 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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) [2024-11-19 22:44:49,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:49,833 INFO L93 Difference]: Finished difference Result 2262 states and 3082 transitions. [2024-11-19 22:44:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 22:44:49,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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 [2024-11-19 22:44:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:49,838 INFO L225 Difference]: With dead ends: 2262 [2024-11-19 22:44:49,838 INFO L226 Difference]: Without dead ends: 2257 [2024-11-19 22:44:49,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:44:49,839 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 1388 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:49,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1014 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:44:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-19 22:44:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1540. [2024-11-19 22:44:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3587239583333333) internal successors, (2087), 1539 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2087 transitions. [2024-11-19 22:44:49,859 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2087 transitions. Word has length 54 [2024-11-19 22:44:49,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:49,859 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2087 transitions. [2024-11-19 22:44:49,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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) [2024-11-19 22:44:49,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2087 transitions. [2024-11-19 22:44:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:44:49,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:49,860 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] [2024-11-19 22:44:49,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:44:49,860 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:49,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:49,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1126690749, now seen corresponding path program 1 times [2024-11-19 22:44:49,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:49,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300355663] [2024-11-19 22:44:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:49,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:49,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:49,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300355663] [2024-11-19 22:44:49,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300355663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:49,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:49,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:49,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416616125] [2024-11-19 22:44:49,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:49,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:49,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:49,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:49,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:49,902 INFO L87 Difference]: Start difference. First operand 1540 states and 2087 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) [2024-11-19 22:44:49,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:49,925 INFO L93 Difference]: Finished difference Result 2068 states and 2797 transitions. [2024-11-19 22:44:49,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:49,925 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 [2024-11-19 22:44:49,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:49,928 INFO L225 Difference]: With dead ends: 2068 [2024-11-19 22:44:49,928 INFO L226 Difference]: Without dead ends: 1509 [2024-11-19 22:44:49,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:49,929 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 257 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 673 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 [2024-11-19 22:44:49,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 673 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-19 22:44:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1507. [2024-11-19 22:44:49,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3293413173652695) internal successors, (1998), 1506 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1998 transitions. [2024-11-19 22:44:49,957 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1998 transitions. Word has length 55 [2024-11-19 22:44:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:49,957 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1998 transitions. [2024-11-19 22:44:49,957 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) [2024-11-19 22:44:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1998 transitions. [2024-11-19 22:44:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:44:49,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:49,958 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] [2024-11-19 22:44:49,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:44:49,958 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:49,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1317678866, now seen corresponding path program 1 times [2024-11-19 22:44:49,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:49,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239753439] [2024-11-19 22:44:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:49,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:49,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:49,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239753439] [2024-11-19 22:44:49,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239753439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:49,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:49,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:49,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604581658] [2024-11-19 22:44:49,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:49,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:49,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:49,998 INFO L87 Difference]: Start difference. First operand 1507 states and 1998 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) [2024-11-19 22:44:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:50,029 INFO L93 Difference]: Finished difference Result 2127 states and 2843 transitions. [2024-11-19 22:44:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:50,030 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 [2024-11-19 22:44:50,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:50,033 INFO L225 Difference]: With dead ends: 2127 [2024-11-19 22:44:50,033 INFO L226 Difference]: Without dead ends: 1514 [2024-11-19 22:44:50,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:50,034 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 206 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 744 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 [2024-11-19 22:44:50,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 744 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:50,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-11-19 22:44:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1507. [2024-11-19 22:44:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3140385894876914) internal successors, (1975), 1506 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1975 transitions. [2024-11-19 22:44:50,047 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1975 transitions. Word has length 55 [2024-11-19 22:44:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:50,048 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1975 transitions. [2024-11-19 22:44:50,048 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) [2024-11-19 22:44:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1975 transitions. [2024-11-19 22:44:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-19 22:44:50,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:50,049 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] [2024-11-19 22:44:50,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 22:44:50,049 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:50,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash -944081870, now seen corresponding path program 1 times [2024-11-19 22:44:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054714066] [2024-11-19 22:44:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:50,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:50,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:50,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054714066] [2024-11-19 22:44:50,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054714066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:50,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:50,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:50,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131673092] [2024-11-19 22:44:50,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:50,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:50,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:50,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:50,088 INFO L87 Difference]: Start difference. First operand 1507 states and 1975 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) [2024-11-19 22:44:50,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:50,109 INFO L93 Difference]: Finished difference Result 2164 states and 2861 transitions. [2024-11-19 22:44:50,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:50,110 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 [2024-11-19 22:44:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:50,113 INFO L225 Difference]: With dead ends: 2164 [2024-11-19 22:44:50,113 INFO L226 Difference]: Without dead ends: 1513 [2024-11-19 22:44:50,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:50,114 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 222 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 745 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 [2024-11-19 22:44:50,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 745 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:50,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-19 22:44:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1507. [2024-11-19 22:44:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3020625415834997) internal successors, (1957), 1506 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1957 transitions. [2024-11-19 22:44:50,127 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1957 transitions. Word has length 55 [2024-11-19 22:44:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:50,127 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1957 transitions. [2024-11-19 22:44:50,127 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) [2024-11-19 22:44:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1957 transitions. [2024-11-19 22:44:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 22:44:50,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:50,128 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] [2024-11-19 22:44:50,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 22:44:50,129 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:50,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:50,129 INFO L85 PathProgramCache]: Analyzing trace with hash -599519829, now seen corresponding path program 1 times [2024-11-19 22:44:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241945921] [2024-11-19 22:44:50,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:50,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:50,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241945921] [2024-11-19 22:44:50,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241945921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:50,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:50,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:50,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925536367] [2024-11-19 22:44:50,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:50,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:50,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:50,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:50,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:50,165 INFO L87 Difference]: Start difference. First operand 1507 states and 1957 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:50,221 INFO L93 Difference]: Finished difference Result 2638 states and 3459 transitions. [2024-11-19 22:44:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-19 22:44:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:50,225 INFO L225 Difference]: With dead ends: 2638 [2024-11-19 22:44:50,225 INFO L226 Difference]: Without dead ends: 1786 [2024-11-19 22:44:50,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:50,226 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 280 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:50,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 420 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-19 22:44:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1397. [2024-11-19 22:44:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1393 states have (on average 1.3058147882268485) internal successors, (1819), 1396 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1819 transitions. [2024-11-19 22:44:50,238 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1819 transitions. Word has length 57 [2024-11-19 22:44:50,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:50,238 INFO L471 AbstractCegarLoop]: Abstraction has 1397 states and 1819 transitions. [2024-11-19 22:44:50,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:50,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1819 transitions. [2024-11-19 22:44:50,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 22:44:50,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:50,240 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] [2024-11-19 22:44:50,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 22:44:50,240 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:50,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash -953719962, now seen corresponding path program 1 times [2024-11-19 22:44:50,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:50,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652786201] [2024-11-19 22:44:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:50,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:51,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652786201] [2024-11-19 22:44:51,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652786201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:51,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:51,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-19 22:44:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207643459] [2024-11-19 22:44:51,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:51,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 22:44:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 22:44:51,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:44:51,095 INFO L87 Difference]: Start difference. First operand 1397 states and 1819 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:52,489 INFO L93 Difference]: Finished difference Result 2904 states and 3841 transitions. [2024-11-19 22:44:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 22:44:52,490 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-19 22:44:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:52,493 INFO L225 Difference]: With dead ends: 2904 [2024-11-19 22:44:52,493 INFO L226 Difference]: Without dead ends: 2900 [2024-11-19 22:44:52,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2024-11-19 22:44:52,495 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 3249 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:52,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 3062 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 22:44:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2024-11-19 22:44:52,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1409. [2024-11-19 22:44:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1405 states have (on average 1.306761565836299) internal successors, (1836), 1408 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1836 transitions. [2024-11-19 22:44:52,509 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1836 transitions. Word has length 57 [2024-11-19 22:44:52,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:52,509 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 1836 transitions. [2024-11-19 22:44:52,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1836 transitions. [2024-11-19 22:44:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 22:44:52,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:52,511 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] [2024-11-19 22:44:52,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 22:44:52,511 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:52,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:52,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1381909423, now seen corresponding path program 1 times [2024-11-19 22:44:52,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:52,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520122196] [2024-11-19 22:44:52,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:52,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520122196] [2024-11-19 22:44:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520122196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:52,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:52,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 22:44:52,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734763702] [2024-11-19 22:44:52,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:52,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 22:44:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:52,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 22:44:52,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:44:52,949 INFO L87 Difference]: Start difference. First operand 1409 states and 1836 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:53,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:53,406 INFO L93 Difference]: Finished difference Result 3448 states and 4586 transitions. [2024-11-19 22:44:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:44:53,407 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-19 22:44:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:53,419 INFO L225 Difference]: With dead ends: 3448 [2024-11-19 22:44:53,419 INFO L226 Difference]: Without dead ends: 3222 [2024-11-19 22:44:53,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-19 22:44:53,425 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 2135 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:53,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 1127 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:44:53,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2024-11-19 22:44:53,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 1346. [2024-11-19 22:44:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1344 states have (on average 1.3095238095238095) internal successors, (1760), 1345 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1760 transitions. [2024-11-19 22:44:53,447 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1760 transitions. Word has length 57 [2024-11-19 22:44:53,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:53,447 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1760 transitions. [2024-11-19 22:44:53,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1760 transitions. [2024-11-19 22:44:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-19 22:44:53,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:53,449 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] [2024-11-19 22:44:53,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 22:44:53,449 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:53,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash 433372011, now seen corresponding path program 1 times [2024-11-19 22:44:53,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941989851] [2024-11-19 22:44:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:53,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:53,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:53,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941989851] [2024-11-19 22:44:53,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941989851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:53,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:53,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 22:44:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51500664] [2024-11-19 22:44:53,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:53,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 22:44:53,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:53,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 22:44:53,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:44:53,876 INFO L87 Difference]: Start difference. First operand 1346 states and 1760 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:54,264 INFO L93 Difference]: Finished difference Result 2235 states and 2957 transitions. [2024-11-19 22:44:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 22:44:54,264 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-19 22:44:54,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:54,267 INFO L225 Difference]: With dead ends: 2235 [2024-11-19 22:44:54,267 INFO L226 Difference]: Without dead ends: 2157 [2024-11-19 22:44:54,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-19 22:44:54,268 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 519 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:54,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1740 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:44:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2024-11-19 22:44:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 1337. [2024-11-19 22:44:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1336 states have (on average 1.3083832335329342) internal successors, (1748), 1336 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1748 transitions. [2024-11-19 22:44:54,281 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1748 transitions. Word has length 58 [2024-11-19 22:44:54,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:54,282 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1748 transitions. [2024-11-19 22:44:54,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1748 transitions. [2024-11-19 22:44:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 22:44:54,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:54,283 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] [2024-11-19 22:44:54,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 22:44:54,284 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:54,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2109512119, now seen corresponding path program 1 times [2024-11-19 22:44:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173406252] [2024-11-19 22:44:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:54,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:54,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:54,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173406252] [2024-11-19 22:44:54,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173406252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:54,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:54,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:44:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184783994] [2024-11-19 22:44:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:54,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:54,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:54,347 INFO L87 Difference]: Start difference. First operand 1337 states and 1748 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) [2024-11-19 22:44:54,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:54,400 INFO L93 Difference]: Finished difference Result 3113 states and 4208 transitions. [2024-11-19 22:44:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:54,401 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 [2024-11-19 22:44:54,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:54,403 INFO L225 Difference]: With dead ends: 3113 [2024-11-19 22:44:54,403 INFO L226 Difference]: Without dead ends: 2379 [2024-11-19 22:44:54,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:54,404 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 978 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:54,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 628 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-19 22:44:54,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2035. [2024-11-19 22:44:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 2034 states have (on average 1.3156342182890854) internal successors, (2676), 2034 states have internal predecessors, (2676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2676 transitions. [2024-11-19 22:44:54,420 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2676 transitions. Word has length 66 [2024-11-19 22:44:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:54,421 INFO L471 AbstractCegarLoop]: Abstraction has 2035 states and 2676 transitions. [2024-11-19 22:44:54,421 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) [2024-11-19 22:44:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2676 transitions. [2024-11-19 22:44:54,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 22:44:54,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:54,423 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] [2024-11-19 22:44:54,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 22:44:54,423 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:44:54,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:54,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1089617976, now seen corresponding path program 1 times [2024-11-19 22:44:54,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:54,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52288636] [2024-11-19 22:44:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:54,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:54,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52288636] [2024-11-19 22:44:54,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52288636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:54,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:54,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:44:54,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248746160] [2024-11-19 22:44:54,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:54,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:54,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:54,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:54,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:54,493 INFO L87 Difference]: Start difference. First operand 2035 states and 2676 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-19 22:44:54,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:54,548 INFO L93 Difference]: Finished difference Result 2041 states and 2679 transitions. [2024-11-19 22:44:54,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:54,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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 [2024-11-19 22:44:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:54,550 INFO L225 Difference]: With dead ends: 2041 [2024-11-19 22:44:54,550 INFO L226 Difference]: Without dead ends: 1818 [2024-11-19 22:44:54,550 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 [2024-11-19 22:44:54,551 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 580 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:54,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 716 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2024-11-19 22:44:54,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1814. [2024-11-19 22:44:54,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1813 states have (on average 1.319911748483177) internal successors, (2393), 1813 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2393 transitions. [2024-11-19 22:44:54,609 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2393 transitions. Word has length 67 [2024-11-19 22:44:54,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:54,609 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2393 transitions. [2024-11-19 22:44:54,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2024-11-19 22:44:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2393 transitions. [2024-11-19 22:44:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:44:54,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:54,611 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] [2024-11-19 22:44:54,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 22:44:54,611 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)] === [2024-11-19 22:44:54,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:54,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1950278783, now seen corresponding path program 1 times [2024-11-19 22:44:54,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:54,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154097239] [2024-11-19 22:44:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:54,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:54,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154097239] [2024-11-19 22:44:54,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154097239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:54,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:54,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:54,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50565216] [2024-11-19 22:44:54,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:54,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:54,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:54,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:54,680 INFO L87 Difference]: Start difference. First operand 1814 states and 2393 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:54,703 INFO L93 Difference]: Finished difference Result 4072 states and 5469 transitions. [2024-11-19 22:44:54,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:54,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:44:54,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:54,707 INFO L225 Difference]: With dead ends: 4072 [2024-11-19 22:44:54,707 INFO L226 Difference]: Without dead ends: 2770 [2024-11-19 22:44:54,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:54,709 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 118 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:54,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 534 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2024-11-19 22:44:54,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2640. [2024-11-19 22:44:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 1.3183023872679045) internal successors, (3479), 2639 states have internal predecessors, (3479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3479 transitions. [2024-11-19 22:44:54,730 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3479 transitions. Word has length 68 [2024-11-19 22:44:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:54,730 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 3479 transitions. [2024-11-19 22:44:54,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3479 transitions. [2024-11-19 22:44:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:44:54,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:54,732 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] [2024-11-19 22:44:54,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 22:44:54,732 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)] === [2024-11-19 22:44:54,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash 427404410, now seen corresponding path program 1 times [2024-11-19 22:44:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:54,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175926246] [2024-11-19 22:44:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:54,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:54,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:54,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175926246] [2024-11-19 22:44:54,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175926246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:54,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:54,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:54,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636832433] [2024-11-19 22:44:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:54,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:54,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:54,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:54,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:54,802 INFO L87 Difference]: Start difference. First operand 2640 states and 3479 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:54,833 INFO L93 Difference]: Finished difference Result 6652 states and 8933 transitions. [2024-11-19 22:44:54,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:54,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:44:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:54,838 INFO L225 Difference]: With dead ends: 6652 [2024-11-19 22:44:54,838 INFO L226 Difference]: Without dead ends: 4546 [2024-11-19 22:44:54,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:54,841 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 107 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:54,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 521 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:54,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2024-11-19 22:44:54,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4176. [2024-11-19 22:44:54,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4175 states have (on average 1.3233532934131738) internal successors, (5525), 4175 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5525 transitions. [2024-11-19 22:44:54,874 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5525 transitions. Word has length 68 [2024-11-19 22:44:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:54,875 INFO L471 AbstractCegarLoop]: Abstraction has 4176 states and 5525 transitions. [2024-11-19 22:44:54,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5525 transitions. [2024-11-19 22:44:54,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 22:44:54,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:54,876 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] [2024-11-19 22:44:54,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 22:44:54,877 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)] === [2024-11-19 22:44:54,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2114357008, now seen corresponding path program 1 times [2024-11-19 22:44:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:54,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760310960] [2024-11-19 22:44:54,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:54,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:54,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:54,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760310960] [2024-11-19 22:44:54,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760310960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:54,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:54,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:54,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050407988] [2024-11-19 22:44:54,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:54,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:54,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:54,943 INFO L87 Difference]: Start difference. First operand 4176 states and 5525 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:54,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:54,989 INFO L93 Difference]: Finished difference Result 11060 states and 14767 transitions. [2024-11-19 22:44:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:54,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-19 22:44:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:54,999 INFO L225 Difference]: With dead ends: 11060 [2024-11-19 22:44:54,999 INFO L226 Difference]: Without dead ends: 7418 [2024-11-19 22:44:55,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:55,004 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 85 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:55,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 511 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:55,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7418 states. [2024-11-19 22:44:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7418 to 6808. [2024-11-19 22:44:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 6807 states have (on average 1.3187894814161891) internal successors, (8977), 6807 states have internal predecessors, (8977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 8977 transitions. [2024-11-19 22:44:55,134 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 8977 transitions. Word has length 70 [2024-11-19 22:44:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:55,134 INFO L471 AbstractCegarLoop]: Abstraction has 6808 states and 8977 transitions. [2024-11-19 22:44:55,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 8977 transitions. [2024-11-19 22:44:55,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-19 22:44:55,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:55,136 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] [2024-11-19 22:44:55,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 22:44:55,136 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)] === [2024-11-19 22:44:55,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:55,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2105959165, now seen corresponding path program 1 times [2024-11-19 22:44:55,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:55,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794798542] [2024-11-19 22:44:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:55,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:55,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794798542] [2024-11-19 22:44:55,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794798542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:55,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:55,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:44:55,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837025383] [2024-11-19 22:44:55,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:55,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:44:55,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:55,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:44:55,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:44:55,289 INFO L87 Difference]: Start difference. First operand 6808 states and 8977 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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) [2024-11-19 22:44:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:55,330 INFO L93 Difference]: Finished difference Result 7482 states and 9874 transitions. [2024-11-19 22:44:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:44:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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 [2024-11-19 22:44:55,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:55,339 INFO L225 Difference]: With dead ends: 7482 [2024-11-19 22:44:55,339 INFO L226 Difference]: Without dead ends: 7480 [2024-11-19 22:44:55,340 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 [2024-11-19 22:44:55,340 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:55,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1263 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:55,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2024-11-19 22:44:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7480. [2024-11-19 22:44:55,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7480 states, 7479 states have (on average 1.2901457414092794) internal successors, (9649), 7479 states have internal predecessors, (9649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7480 states to 7480 states and 9649 transitions. [2024-11-19 22:44:55,400 INFO L78 Accepts]: Start accepts. Automaton has 7480 states and 9649 transitions. Word has length 72 [2024-11-19 22:44:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:55,401 INFO L471 AbstractCegarLoop]: Abstraction has 7480 states and 9649 transitions. [2024-11-19 22:44:55,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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) [2024-11-19 22:44:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 7480 states and 9649 transitions. [2024-11-19 22:44:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 22:44:55,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:55,402 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] [2024-11-19 22:44:55,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 22:44:55,403 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)] === [2024-11-19 22:44:55,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1422452613, now seen corresponding path program 1 times [2024-11-19 22:44:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280082888] [2024-11-19 22:44:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:55,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:55,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280082888] [2024-11-19 22:44:55,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280082888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:55,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:55,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:44:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707198184] [2024-11-19 22:44:55,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:55,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:44:55,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:44:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:55,440 INFO L87 Difference]: Start difference. First operand 7480 states and 9649 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2024-11-19 22:44:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:55,487 INFO L93 Difference]: Finished difference Result 17860 states and 23035 transitions. [2024-11-19 22:44:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:44:55,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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 [2024-11-19 22:44:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:55,500 INFO L225 Difference]: With dead ends: 17860 [2024-11-19 22:44:55,501 INFO L226 Difference]: Without dead ends: 10914 [2024-11-19 22:44:55,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:44:55,508 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 177 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:55,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 379 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10914 states. [2024-11-19 22:44:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10914 to 10912. [2024-11-19 22:44:55,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10912 states, 10911 states have (on average 1.271469159563743) internal successors, (13873), 10911 states have internal predecessors, (13873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10912 states to 10912 states and 13873 transitions. [2024-11-19 22:44:55,701 INFO L78 Accepts]: Start accepts. Automaton has 10912 states and 13873 transitions. Word has length 73 [2024-11-19 22:44:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:55,702 INFO L471 AbstractCegarLoop]: Abstraction has 10912 states and 13873 transitions. [2024-11-19 22:44:55,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2024-11-19 22:44:55,702 INFO L276 IsEmpty]: Start isEmpty. Operand 10912 states and 13873 transitions. [2024-11-19 22:44:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 22:44:55,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:55,703 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] [2024-11-19 22:44:55,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 22:44:55,704 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)] === [2024-11-19 22:44:55,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1415466240, now seen corresponding path program 1 times [2024-11-19 22:44:55,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:55,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058109787] [2024-11-19 22:44:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:55,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:55,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:55,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058109787] [2024-11-19 22:44:55,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058109787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:55,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:55,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:44:55,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552807820] [2024-11-19 22:44:55,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:55,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:55,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:55,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:55,801 INFO L87 Difference]: Start difference. First operand 10912 states and 13873 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:55,883 INFO L93 Difference]: Finished difference Result 16062 states and 20560 transitions. [2024-11-19 22:44:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:55,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-19 22:44:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:55,902 INFO L225 Difference]: With dead ends: 16062 [2024-11-19 22:44:55,902 INFO L226 Difference]: Without dead ends: 13696 [2024-11-19 22:44:55,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:55,909 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 599 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:55,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 771 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:55,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13696 states. [2024-11-19 22:44:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13696 to 12472. [2024-11-19 22:44:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12472 states, 12471 states have (on average 1.269184508058696) internal successors, (15828), 12471 states have internal predecessors, (15828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12472 states to 12472 states and 15828 transitions. [2024-11-19 22:44:56,065 INFO L78 Accepts]: Start accepts. Automaton has 12472 states and 15828 transitions. Word has length 74 [2024-11-19 22:44:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:56,065 INFO L471 AbstractCegarLoop]: Abstraction has 12472 states and 15828 transitions. [2024-11-19 22:44:56,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 12472 states and 15828 transitions. [2024-11-19 22:44:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 22:44:56,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:56,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:44:56,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 22:44:56,068 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)] === [2024-11-19 22:44:56,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:56,068 INFO L85 PathProgramCache]: Analyzing trace with hash -96521411, now seen corresponding path program 1 times [2024-11-19 22:44:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:56,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163255851] [2024-11-19 22:44:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:56,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:56,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:56,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163255851] [2024-11-19 22:44:56,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163255851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:56,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:56,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:44:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525863188] [2024-11-19 22:44:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:56,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:44:56,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:56,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:44:56,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:44:56,153 INFO L87 Difference]: Start difference. First operand 12472 states and 15828 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:56,226 INFO L93 Difference]: Finished difference Result 16742 states and 21360 transitions. [2024-11-19 22:44:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:44:56,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-19 22:44:56,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:56,239 INFO L225 Difference]: With dead ends: 16742 [2024-11-19 22:44:56,240 INFO L226 Difference]: Without dead ends: 14424 [2024-11-19 22:44:56,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:44:56,243 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 602 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:56,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 749 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:44:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14424 states. [2024-11-19 22:44:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14424 to 13998. [2024-11-19 22:44:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13998 states, 13997 states have (on average 1.2671286704293778) internal successors, (17736), 13997 states have internal predecessors, (17736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13998 states to 13998 states and 17736 transitions. [2024-11-19 22:44:56,349 INFO L78 Accepts]: Start accepts. Automaton has 13998 states and 17736 transitions. Word has length 78 [2024-11-19 22:44:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:56,349 INFO L471 AbstractCegarLoop]: Abstraction has 13998 states and 17736 transitions. [2024-11-19 22:44:56,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 13998 states and 17736 transitions. [2024-11-19 22:44:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 22:44:56,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:56,354 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] [2024-11-19 22:44:56,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 22:44:56,354 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)] === [2024-11-19 22:44:56,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:56,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1725210313, now seen corresponding path program 1 times [2024-11-19 22:44:56,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:56,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244965268] [2024-11-19 22:44:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:56,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 22:44:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244965268] [2024-11-19 22:44:56,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244965268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:56,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:56,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:44:56,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161946770] [2024-11-19 22:44:56,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:56,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:44:56,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:56,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:44:56,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:44:56,602 INFO L87 Difference]: Start difference. First operand 13998 states and 17736 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:57,043 INFO L93 Difference]: Finished difference Result 38186 states and 48317 transitions. [2024-11-19 22:44:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:44:57,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 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 [2024-11-19 22:44:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:57,083 INFO L225 Difference]: With dead ends: 38186 [2024-11-19 22:44:57,083 INFO L226 Difference]: Without dead ends: 31418 [2024-11-19 22:44:57,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-11-19 22:44:57,099 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1035 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:57,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 917 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:44:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31418 states. [2024-11-19 22:44:57,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31418 to 13974. [2024-11-19 22:44:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13974 states, 13973 states have (on average 1.2672296571960209) internal successors, (17707), 13973 states have internal predecessors, (17707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:57,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13974 states to 13974 states and 17707 transitions. [2024-11-19 22:44:57,300 INFO L78 Accepts]: Start accepts. Automaton has 13974 states and 17707 transitions. Word has length 92 [2024-11-19 22:44:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:57,300 INFO L471 AbstractCegarLoop]: Abstraction has 13974 states and 17707 transitions. [2024-11-19 22:44:57,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:57,300 INFO L276 IsEmpty]: Start isEmpty. Operand 13974 states and 17707 transitions. [2024-11-19 22:44:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 22:44:57,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:57,305 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] [2024-11-19 22:44:57,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 22:44:57,305 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)] === [2024-11-19 22:44:57,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:57,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1339395570, now seen corresponding path program 1 times [2024-11-19 22:44:57,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:57,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377002079] [2024-11-19 22:44:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:57,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:57,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:57,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377002079] [2024-11-19 22:44:57,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377002079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:44:57,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:44:57,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:44:57,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7123659] [2024-11-19 22:44:57,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:44:57,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 22:44:57,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:44:57,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 22:44:57,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:44:57,569 INFO L87 Difference]: Start difference. First operand 13974 states and 17707 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:44:58,100 INFO L93 Difference]: Finished difference Result 31881 states and 40265 transitions. [2024-11-19 22:44:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:44:58,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 [2024-11-19 22:44:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:44:58,131 INFO L225 Difference]: With dead ends: 31881 [2024-11-19 22:44:58,131 INFO L226 Difference]: Without dead ends: 25041 [2024-11-19 22:44:58,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-19 22:44:58,143 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1090 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:44:58,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 941 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:44:58,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25041 states. [2024-11-19 22:44:58,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25041 to 21793. [2024-11-19 22:44:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21793 states, 21792 states have (on average 1.2663362701908958) internal successors, (27596), 21792 states have internal predecessors, (27596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21793 states to 21793 states and 27596 transitions. [2024-11-19 22:44:58,341 INFO L78 Accepts]: Start accepts. Automaton has 21793 states and 27596 transitions. Word has length 93 [2024-11-19 22:44:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:44:58,341 INFO L471 AbstractCegarLoop]: Abstraction has 21793 states and 27596 transitions. [2024-11-19 22:44:58,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:44:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 21793 states and 27596 transitions. [2024-11-19 22:44:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 22:44:58,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:44:58,346 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] [2024-11-19 22:44:58,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 22:44:58,347 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)] === [2024-11-19 22:44:58,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:44:58,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1289899464, now seen corresponding path program 1 times [2024-11-19 22:44:58,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:44:58,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984420246] [2024-11-19 22:44:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:44:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:58,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:44:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984420246] [2024-11-19 22:44:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984420246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:44:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623153945] [2024-11-19 22:44:58,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:44:58,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:44:58,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:44:58,644 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) [2024-11-19 22:44:58,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:44:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:44:58,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-19 22:44:58,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:44:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:44:59,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:45:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623153945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:45:00,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:45:00,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2024-11-19 22:45:00,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959841028] [2024-11-19 22:45:00,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:45:00,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-19 22:45:00,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:00,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-19 22:45:00,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2024-11-19 22:45:00,783 INFO L87 Difference]: Start difference. First operand 21793 states and 27596 transitions. Second operand has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:13,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:13,955 INFO L93 Difference]: Finished difference Result 134020 states and 167909 transitions. [2024-11-19 22:45:13,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2024-11-19 22:45:13,956 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 0 states have call successors, (0), 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 [2024-11-19 22:45:13,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:14,241 INFO L225 Difference]: With dead ends: 134020 [2024-11-19 22:45:14,245 INFO L226 Difference]: Without dead ends: 123820 [2024-11-19 22:45:14,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28015 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=10500, Invalid=55806, Unknown=0, NotChecked=0, Total=66306 [2024-11-19 22:45:14,303 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 4668 mSDsluCounter, 5344 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 5733 SdHoareTripleChecker+Invalid, 5575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:14,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4668 Valid, 5733 Invalid, 5575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 5456 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 22:45:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123820 states. [2024-11-19 22:45:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123820 to 41224. [2024-11-19 22:45:15,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41224 states, 41223 states have (on average 1.2659437692550275) internal successors, (52186), 41223 states have internal predecessors, (52186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41224 states to 41224 states and 52186 transitions. [2024-11-19 22:45:15,184 INFO L78 Accepts]: Start accepts. Automaton has 41224 states and 52186 transitions. Word has length 93 [2024-11-19 22:45:15,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:15,184 INFO L471 AbstractCegarLoop]: Abstraction has 41224 states and 52186 transitions. [2024-11-19 22:45:15,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.310344827586206) internal successors, (241), 28 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:15,184 INFO L276 IsEmpty]: Start isEmpty. Operand 41224 states and 52186 transitions. [2024-11-19 22:45:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-19 22:45:15,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:15,192 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, 1] [2024-11-19 22:45:15,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 22:45:15,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:15,397 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)] === [2024-11-19 22:45:15,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash 848038152, now seen corresponding path program 1 times [2024-11-19 22:45:15,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:15,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405898216] [2024-11-19 22:45:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:15,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:15,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405898216] [2024-11-19 22:45:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405898216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:45:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763904751] [2024-11-19 22:45:15,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:15,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:15,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:45:15,867 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) [2024-11-19 22:45:15,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:45:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:16,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-19 22:45:16,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:45:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:16,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:45:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:16,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763904751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:45:16,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:45:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 8] total 18 [2024-11-19 22:45:16,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539648030] [2024-11-19 22:45:16,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:45:16,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 22:45:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 22:45:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:45:16,902 INFO L87 Difference]: Start difference. First operand 41224 states and 52186 transitions. Second operand has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:18,087 INFO L93 Difference]: Finished difference Result 171069 states and 217226 transitions. [2024-11-19 22:45:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-19 22:45:18,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 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 94 [2024-11-19 22:45:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:18,399 INFO L225 Difference]: With dead ends: 171069 [2024-11-19 22:45:18,400 INFO L226 Difference]: Without dead ends: 130527 [2024-11-19 22:45:18,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=515, Invalid=1837, Unknown=0, NotChecked=0, Total=2352 [2024-11-19 22:45:18,467 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 3642 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3642 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:18,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3642 Valid, 3226 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:45:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130527 states. [2024-11-19 22:45:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130527 to 111482. [2024-11-19 22:45:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111482 states, 111481 states have (on average 1.2567702119643707) internal successors, (140106), 111481 states have internal predecessors, (140106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111482 states to 111482 states and 140106 transitions. [2024-11-19 22:45:20,101 INFO L78 Accepts]: Start accepts. Automaton has 111482 states and 140106 transitions. Word has length 94 [2024-11-19 22:45:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:20,102 INFO L471 AbstractCegarLoop]: Abstraction has 111482 states and 140106 transitions. [2024-11-19 22:45:20,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand 111482 states and 140106 transitions. [2024-11-19 22:45:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 22:45:20,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:20,118 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:20,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 22:45:20,322 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,SelfDestructingSolverStorable31 [2024-11-19 22:45:20,323 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)] === [2024-11-19 22:45:20,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:20,323 INFO L85 PathProgramCache]: Analyzing trace with hash 900007329, now seen corresponding path program 1 times [2024-11-19 22:45:20,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:20,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426209044] [2024-11-19 22:45:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:20,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:20,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:20,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426209044] [2024-11-19 22:45:20,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426209044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:20,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:20,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:45:20,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643448653] [2024-11-19 22:45:20,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:20,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:45:20,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:20,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:45:20,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:45:20,690 INFO L87 Difference]: Start difference. First operand 111482 states and 140106 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:21,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:21,305 INFO L93 Difference]: Finished difference Result 222003 states and 278789 transitions. [2024-11-19 22:45:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:45:21,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-19 22:45:21,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:21,452 INFO L225 Difference]: With dead ends: 222003 [2024-11-19 22:45:21,453 INFO L226 Difference]: Without dead ends: 111203 [2024-11-19 22:45:21,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:45:21,519 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 441 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:21,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 487 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:45:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111203 states. [2024-11-19 22:45:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111203 to 103834. [2024-11-19 22:45:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103834 states, 103833 states have (on average 1.2375160112873556) internal successors, (128495), 103833 states have internal predecessors, (128495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103834 states to 103834 states and 128495 transitions. [2024-11-19 22:45:23,150 INFO L78 Accepts]: Start accepts. Automaton has 103834 states and 128495 transitions. Word has length 95 [2024-11-19 22:45:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:23,151 INFO L471 AbstractCegarLoop]: Abstraction has 103834 states and 128495 transitions. [2024-11-19 22:45:23,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:23,151 INFO L276 IsEmpty]: Start isEmpty. Operand 103834 states and 128495 transitions. [2024-11-19 22:45:23,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-19 22:45:23,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:23,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:23,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 22:45:23,161 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)] === [2024-11-19 22:45:23,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash -702249606, now seen corresponding path program 1 times [2024-11-19 22:45:23,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:23,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894471551] [2024-11-19 22:45:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:23,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:23,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:23,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894471551] [2024-11-19 22:45:23,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894471551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:23,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:23,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:45:23,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789052195] [2024-11-19 22:45:23,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:23,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:45:23,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:23,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:45:23,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:45:23,255 INFO L87 Difference]: Start difference. First operand 103834 states and 128495 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:23,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:23,854 INFO L93 Difference]: Finished difference Result 140787 states and 175446 transitions. [2024-11-19 22:45:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:45:23,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-19 22:45:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:23,990 INFO L225 Difference]: With dead ends: 140787 [2024-11-19 22:45:23,991 INFO L226 Difference]: Without dead ends: 122967 [2024-11-19 22:45:24,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:45:24,023 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 538 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:24,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 796 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:45:24,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122967 states. [2024-11-19 22:45:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122967 to 118093. [2024-11-19 22:45:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118093 states, 118092 states have (on average 1.2359939708024252) internal successors, (145961), 118092 states have internal predecessors, (145961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118093 states to 118093 states and 145961 transitions. [2024-11-19 22:45:25,496 INFO L78 Accepts]: Start accepts. Automaton has 118093 states and 145961 transitions. Word has length 99 [2024-11-19 22:45:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:25,496 INFO L471 AbstractCegarLoop]: Abstraction has 118093 states and 145961 transitions. [2024-11-19 22:45:25,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 118093 states and 145961 transitions. [2024-11-19 22:45:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-19 22:45:25,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:25,508 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:25,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 22:45:25,509 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)] === [2024-11-19 22:45:25,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1212187745, now seen corresponding path program 1 times [2024-11-19 22:45:25,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:25,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496421125] [2024-11-19 22:45:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:25,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 22:45:25,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:25,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496421125] [2024-11-19 22:45:25,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496421125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:25,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:25,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:45:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496734295] [2024-11-19 22:45:25,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:25,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:45:25,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:45:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:45:25,582 INFO L87 Difference]: Start difference. First operand 118093 states and 145961 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:26,213 INFO L93 Difference]: Finished difference Result 221017 states and 273472 transitions. [2024-11-19 22:45:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:45:26,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 100 [2024-11-19 22:45:26,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:26,812 INFO L225 Difference]: With dead ends: 221017 [2024-11-19 22:45:26,813 INFO L226 Difference]: Without dead ends: 103606 [2024-11-19 22:45:26,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:45:26,899 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 188 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:26,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 239 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:45:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103606 states. [2024-11-19 22:45:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103606 to 101236. [2024-11-19 22:45:28,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101236 states, 101235 states have (on average 1.2179088259989135) internal successors, (123295), 101235 states have internal predecessors, (123295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101236 states to 101236 states and 123295 transitions. [2024-11-19 22:45:28,130 INFO L78 Accepts]: Start accepts. Automaton has 101236 states and 123295 transitions. Word has length 100 [2024-11-19 22:45:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:28,131 INFO L471 AbstractCegarLoop]: Abstraction has 101236 states and 123295 transitions. [2024-11-19 22:45:28,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 101236 states and 123295 transitions. [2024-11-19 22:45:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 22:45:28,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:28,140 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:28,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 22:45:28,140 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)] === [2024-11-19 22:45:28,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:28,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1791537517, now seen corresponding path program 1 times [2024-11-19 22:45:28,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:28,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619549290] [2024-11-19 22:45:28,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:28,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:28,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:28,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619549290] [2024-11-19 22:45:28,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619549290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:45:28,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312146860] [2024-11-19 22:45:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:28,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:28,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:45:28,215 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) [2024-11-19 22:45:28,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:45:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:28,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 22:45:28,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:45:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:28,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:45:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:28,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312146860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:45:28,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:45:28,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-19 22:45:28,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651048290] [2024-11-19 22:45:28,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:45:28,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 22:45:28,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:28,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 22:45:28,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:45:28,809 INFO L87 Difference]: Start difference. First operand 101236 states and 123295 transitions. Second operand has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:29,919 INFO L93 Difference]: Finished difference Result 178258 states and 217019 transitions. [2024-11-19 22:45:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:45:29,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 0 states have call successors, (0), 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 101 [2024-11-19 22:45:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:30,012 INFO L225 Difference]: With dead ends: 178258 [2024-11-19 22:45:30,012 INFO L226 Difference]: Without dead ends: 77616 [2024-11-19 22:45:30,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:45:30,051 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1716 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:30,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 923 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:45:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77616 states. [2024-11-19 22:45:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77616 to 77260. [2024-11-19 22:45:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77260 states, 77259 states have (on average 1.1891430124645672) internal successors, (91872), 77259 states have internal predecessors, (91872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77260 states to 77260 states and 91872 transitions. [2024-11-19 22:45:31,311 INFO L78 Accepts]: Start accepts. Automaton has 77260 states and 91872 transitions. Word has length 101 [2024-11-19 22:45:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:31,311 INFO L471 AbstractCegarLoop]: Abstraction has 77260 states and 91872 transitions. [2024-11-19 22:45:31,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 14 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 77260 states and 91872 transitions. [2024-11-19 22:45:31,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:45:31,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:31,321 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:31,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 22:45:31,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:31,526 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)] === [2024-11-19 22:45:31,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1517969609, now seen corresponding path program 1 times [2024-11-19 22:45:31,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:31,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72646866] [2024-11-19 22:45:31,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:31,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 22:45:31,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:31,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72646866] [2024-11-19 22:45:31,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72646866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:31,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:31,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:45:31,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647696035] [2024-11-19 22:45:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:31,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:45:31,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:31,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:45:31,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:45:31,683 INFO L87 Difference]: Start difference. First operand 77260 states and 91872 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:32,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:32,160 INFO L93 Difference]: Finished difference Result 117795 states and 139308 transitions. [2024-11-19 22:45:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:45:32,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-19 22:45:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:32,287 INFO L225 Difference]: With dead ends: 117795 [2024-11-19 22:45:32,288 INFO L226 Difference]: Without dead ends: 100685 [2024-11-19 22:45:32,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:45:32,326 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1156 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:32,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 455 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:45:32,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100685 states. [2024-11-19 22:45:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100685 to 77305. [2024-11-19 22:45:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77305 states, 77304 states have (on average 1.189123460622995) internal successors, (91924), 77304 states have internal predecessors, (91924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77305 states to 77305 states and 91924 transitions. [2024-11-19 22:45:33,663 INFO L78 Accepts]: Start accepts. Automaton has 77305 states and 91924 transitions. Word has length 103 [2024-11-19 22:45:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:33,663 INFO L471 AbstractCegarLoop]: Abstraction has 77305 states and 91924 transitions. [2024-11-19 22:45:33,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 77305 states and 91924 transitions. [2024-11-19 22:45:33,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 22:45:33,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:33,671 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:33,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 22:45:33,671 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)] === [2024-11-19 22:45:33,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1546415277, now seen corresponding path program 1 times [2024-11-19 22:45:33,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:33,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921179793] [2024-11-19 22:45:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:33,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:33,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:33,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921179793] [2024-11-19 22:45:33,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921179793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:45:33,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388968639] [2024-11-19 22:45:33,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:33,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:33,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:45:33,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:45:33,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:45:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:33,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 22:45:33,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:45:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:34,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:45:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:34,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388968639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:45:34,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:45:34,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-19 22:45:34,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985859946] [2024-11-19 22:45:34,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:45:34,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 22:45:34,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:34,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 22:45:34,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:45:34,296 INFO L87 Difference]: Start difference. First operand 77305 states and 91924 transitions. Second operand has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:35,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:35,409 INFO L93 Difference]: Finished difference Result 178080 states and 211480 transitions. [2024-11-19 22:45:35,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:45:35,409 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-19 22:45:35,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:35,529 INFO L225 Difference]: With dead ends: 178080 [2024-11-19 22:45:35,530 INFO L226 Difference]: Without dead ends: 101482 [2024-11-19 22:45:35,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:45:35,581 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1456 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:35,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1030 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:45:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101482 states. [2024-11-19 22:45:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101482 to 86562. [2024-11-19 22:45:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86562 states, 86561 states have (on average 1.1878675153937686) internal successors, (102823), 86561 states have internal predecessors, (102823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86562 states to 86562 states and 102823 transitions. [2024-11-19 22:45:36,731 INFO L78 Accepts]: Start accepts. Automaton has 86562 states and 102823 transitions. Word has length 104 [2024-11-19 22:45:36,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:36,733 INFO L471 AbstractCegarLoop]: Abstraction has 86562 states and 102823 transitions. [2024-11-19 22:45:36,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.428571428571427) internal successors, (286), 14 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 86562 states and 102823 transitions. [2024-11-19 22:45:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-19 22:45:36,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:36,742 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:36,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 22:45:36,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-19 22:45:36,943 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:45:36,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:36,943 INFO L85 PathProgramCache]: Analyzing trace with hash -364310100, now seen corresponding path program 1 times [2024-11-19 22:45:36,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:36,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864897887] [2024-11-19 22:45:36,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:36,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:36,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:36,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864897887] [2024-11-19 22:45:36,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864897887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:36,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:36,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:45:36,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356674784] [2024-11-19 22:45:36,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:36,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:45:36,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:36,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:45:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:45:36,985 INFO L87 Difference]: Start difference. First operand 86562 states and 102823 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:37,218 INFO L93 Difference]: Finished difference Result 120325 states and 142715 transitions. [2024-11-19 22:45:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:45:37,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-19 22:45:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:37,311 INFO L225 Difference]: With dead ends: 120325 [2024-11-19 22:45:37,311 INFO L226 Difference]: Without dead ends: 88256 [2024-11-19 22:45:37,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:45:37,351 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 72 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:37,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 538 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:45:37,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88256 states. [2024-11-19 22:45:39,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88256 to 84006. [2024-11-19 22:45:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84006 states, 84005 states have (on average 1.1845485387774537) internal successors, (99508), 84005 states have internal predecessors, (99508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84006 states to 84006 states and 99508 transitions. [2024-11-19 22:45:39,438 INFO L78 Accepts]: Start accepts. Automaton has 84006 states and 99508 transitions. Word has length 105 [2024-11-19 22:45:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:39,438 INFO L471 AbstractCegarLoop]: Abstraction has 84006 states and 99508 transitions. [2024-11-19 22:45:39,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 84006 states and 99508 transitions. [2024-11-19 22:45:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-19 22:45:39,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:39,448 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:39,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 22:45:39,448 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:45:39,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash 158442809, now seen corresponding path program 1 times [2024-11-19 22:45:39,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:39,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417976800] [2024-11-19 22:45:39,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:39,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:40,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:40,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417976800] [2024-11-19 22:45:40,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417976800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:45:40,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117231996] [2024-11-19 22:45:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:40,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:45:40,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:45:40,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 22:45:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:40,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 22:45:40,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:45:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:41,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:45:42,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:42,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117231996] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:45:42,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:45:42,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 13] total 29 [2024-11-19 22:45:42,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338787254] [2024-11-19 22:45:42,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:45:42,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 22:45:42,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:42,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 22:45:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2024-11-19 22:45:42,342 INFO L87 Difference]: Start difference. First operand 84006 states and 99508 transitions. Second operand has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:45,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:45,100 INFO L93 Difference]: Finished difference Result 309673 states and 367736 transitions. [2024-11-19 22:45:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 22:45:45,100 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-19 22:45:45,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:45,409 INFO L225 Difference]: With dead ends: 309673 [2024-11-19 22:45:45,410 INFO L226 Difference]: Without dead ends: 241233 [2024-11-19 22:45:45,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=746, Invalid=2560, Unknown=0, NotChecked=0, Total=3306 [2024-11-19 22:45:45,497 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 4574 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4574 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 2532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:45,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4574 Valid, 3318 Invalid, 2532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 22:45:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241233 states. [2024-11-19 22:45:47,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241233 to 85328. [2024-11-19 22:45:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85328 states, 85327 states have (on average 1.1839863114840554) internal successors, (101026), 85327 states have internal predecessors, (101026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85328 states to 85328 states and 101026 transitions. [2024-11-19 22:45:47,751 INFO L78 Accepts]: Start accepts. Automaton has 85328 states and 101026 transitions. Word has length 105 [2024-11-19 22:45:47,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:47,751 INFO L471 AbstractCegarLoop]: Abstraction has 85328 states and 101026 transitions. [2024-11-19 22:45:47,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.566666666666666) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 85328 states and 101026 transitions. [2024-11-19 22:45:47,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 22:45:47,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:47,774 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:47,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 22:45:47,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-19 22:45:47,976 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:45:47,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:47,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1932584356, now seen corresponding path program 1 times [2024-11-19 22:45:47,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:47,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102826248] [2024-11-19 22:45:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:47,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 22:45:48,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:48,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102826248] [2024-11-19 22:45:48,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102826248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:48,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:48,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:45:48,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937282731] [2024-11-19 22:45:48,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:48,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:45:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:48,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:45:48,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:45:48,420 INFO L87 Difference]: Start difference. First operand 85328 states and 101026 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:49,251 INFO L93 Difference]: Finished difference Result 219724 states and 260899 transitions. [2024-11-19 22:45:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 22:45:49,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-19 22:45:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:49,414 INFO L225 Difference]: With dead ends: 219724 [2024-11-19 22:45:49,414 INFO L226 Difference]: Without dead ends: 150426 [2024-11-19 22:45:49,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:45:49,473 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1088 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:49,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 994 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 22:45:50,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150426 states. [2024-11-19 22:45:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150426 to 84986. [2024-11-19 22:45:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84986 states, 84985 states have (on average 1.1841030770135907) internal successors, (100631), 84985 states have internal predecessors, (100631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84986 states to 84986 states and 100631 transitions. [2024-11-19 22:45:51,918 INFO L78 Accepts]: Start accepts. Automaton has 84986 states and 100631 transitions. Word has length 106 [2024-11-19 22:45:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:51,919 INFO L471 AbstractCegarLoop]: Abstraction has 84986 states and 100631 transitions. [2024-11-19 22:45:51,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 84986 states and 100631 transitions. [2024-11-19 22:45:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-19 22:45:51,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:51,935 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:51,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-19 22:45:51,935 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:45:51,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash 267119185, now seen corresponding path program 1 times [2024-11-19 22:45:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:51,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894614313] [2024-11-19 22:45:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:52,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:52,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894614313] [2024-11-19 22:45:52,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894614313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:45:52,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818598005] [2024-11-19 22:45:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:52,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:52,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:45:52,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:45:52,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 22:45:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:52,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-19 22:45:52,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:45:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:53,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:45:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:45:54,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818598005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:45:54,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:45:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 12] total 34 [2024-11-19 22:45:54,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562520927] [2024-11-19 22:45:54,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:45:54,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 22:45:54,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 22:45:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 22:45:54,539 INFO L87 Difference]: Start difference. First operand 84986 states and 100631 transitions. Second operand has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:56,235 INFO L93 Difference]: Finished difference Result 190692 states and 226328 transitions. [2024-11-19 22:45:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 22:45:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-19 22:45:56,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:56,430 INFO L225 Difference]: With dead ends: 190692 [2024-11-19 22:45:56,431 INFO L226 Difference]: Without dead ends: 170776 [2024-11-19 22:45:56,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2024-11-19 22:45:56,485 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1863 mSDsluCounter, 7149 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 7599 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:56,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 7599 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:45:56,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170776 states. [2024-11-19 22:45:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170776 to 85024. [2024-11-19 22:45:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85024 states, 85023 states have (on average 1.1840207943732872) internal successors, (100669), 85023 states have internal predecessors, (100669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85024 states to 85024 states and 100669 transitions. [2024-11-19 22:45:59,012 INFO L78 Accepts]: Start accepts. Automaton has 85024 states and 100669 transitions. Word has length 107 [2024-11-19 22:45:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:45:59,016 INFO L471 AbstractCegarLoop]: Abstraction has 85024 states and 100669 transitions. [2024-11-19 22:45:59,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.617647058823529) internal successors, (259), 34 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:59,016 INFO L276 IsEmpty]: Start isEmpty. Operand 85024 states and 100669 transitions. [2024-11-19 22:45:59,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-19 22:45:59,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:45:59,031 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:45:59,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 22:45:59,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:45:59,233 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:45:59,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:45:59,234 INFO L85 PathProgramCache]: Analyzing trace with hash -851477358, now seen corresponding path program 1 times [2024-11-19 22:45:59,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:45:59,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693302633] [2024-11-19 22:45:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:45:59,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:45:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:45:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 22:45:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:45:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693302633] [2024-11-19 22:45:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693302633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:45:59,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:45:59,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:45:59,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929877253] [2024-11-19 22:45:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:45:59,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:45:59,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:45:59,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:45:59,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:45:59,309 INFO L87 Difference]: Start difference. First operand 85024 states and 100669 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:45:59,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:45:59,608 INFO L93 Difference]: Finished difference Result 117116 states and 138969 transitions. [2024-11-19 22:45:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:45:59,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-19 22:45:59,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:45:59,705 INFO L225 Difference]: With dead ends: 117116 [2024-11-19 22:45:59,705 INFO L226 Difference]: Without dead ends: 77744 [2024-11-19 22:45:59,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:45:59,746 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 188 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:45:59,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 324 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:45:59,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77744 states. [2024-11-19 22:46:00,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77744 to 77672. [2024-11-19 22:46:00,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77672 states, 77671 states have (on average 1.1786123521005265) internal successors, (91544), 77671 states have internal predecessors, (91544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:46:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77672 states to 77672 states and 91544 transitions. [2024-11-19 22:46:01,088 INFO L78 Accepts]: Start accepts. Automaton has 77672 states and 91544 transitions. Word has length 107 [2024-11-19 22:46:01,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:46:01,089 INFO L471 AbstractCegarLoop]: Abstraction has 77672 states and 91544 transitions. [2024-11-19 22:46:01,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:46:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 77672 states and 91544 transitions. [2024-11-19 22:46:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 22:46:01,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:46:01,097 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:46:01,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-19 22:46:01,097 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-19 22:46:01,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:46:01,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1472779697, now seen corresponding path program 1 times [2024-11-19 22:46:01,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:46:01,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784272511] [2024-11-19 22:46:01,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:46:01,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:46:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:46:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:46:01,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:46:01,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784272511] [2024-11-19 22:46:01,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784272511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:46:01,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084636998] [2024-11-19 22:46:01,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:46:01,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:46:01,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:46:01,819 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:46:01,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 22:46:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:46:02,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 22:46:02,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:46:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:46:02,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:46:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:46:03,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084636998] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:46:03,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:46:03,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 33 [2024-11-19 22:46:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259561784] [2024-11-19 22:46:03,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:46:03,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-19 22:46:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:46:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-19 22:46:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 22:46:03,637 INFO L87 Difference]: Start difference. First operand 77672 states and 91544 transitions. Second operand has 33 states, 33 states have (on average 9.030303030303031) internal successors, (298), 33 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)