./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 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.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-dev-4a390ef-m [2024-10-24 01:39:56,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:39:57,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:39:57,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:39:57,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:39:57,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:39:57,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:39:57,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:39:57,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:39:57,133 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:39:57,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:39:57,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:39:57,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:39:57,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:39:57,137 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:39:57,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:39:57,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:39:57,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:39:57,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:39:57,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:39:57,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:39:57,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:39:57,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:39:57,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:39:57,144 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:39:57,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:39:57,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:39:57,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:39:57,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:39:57,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:39:57,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:39:57,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:39:57,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:39:57,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:39:57,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:39:57,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:39:57,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:39:57,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:39:57,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:39:57,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:39:57,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:39:57,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:39:57,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 [2024-10-24 01:39:57,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:39:57,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:39:57,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:39:57,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:39:57,438 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:39:57,440 INFO L431 ainManager$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 [2024-10-24 01:39:58,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:39:59,346 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:39:59,347 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 [2024-10-24 01:39:59,376 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea2f4eb6/796d105e5fa641809dee67d0298fa80f/FLAG987450c17 [2024-10-24 01:39:59,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea2f4eb6/796d105e5fa641809dee67d0298fa80f [2024-10-24 01:39:59,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:39:59,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:39:59,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:39:59,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:39:59,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:39:59,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:59" (1/1) ... [2024-10-24 01:39:59,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b6d273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:59, skipping insertion in model container [2024-10-24 01:39:59,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:59" (1/1) ... [2024-10-24 01:39:59,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:39:59,803 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-10-24 01:39:59,859 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-10-24 01:39:59,880 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-10-24 01:39:59,891 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-10-24 01:40:00,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:40:00,058 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:40:00,106 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2024-10-24 01:40:00,127 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2024-10-24 01:40:00,134 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2024-10-24 01:40:00,138 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2024-10-24 01:40:00,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:40:00,334 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:40:00,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00 WrapperNode [2024-10-24 01:40:00,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:40:00,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:40:00,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:40:00,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:40:00,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,527 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2803 [2024-10-24 01:40:00,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:40:00,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:40:00,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:40:00,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:40:00,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,609 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:40:00,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:40:00,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:40:00,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:40:00,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:40:00,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (1/1) ... [2024-10-24 01:40:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:40:00,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:00,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:40:00,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:40:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:40:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:40:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:40:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:40:00,987 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:40:00,989 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:40:02,606 INFO L? ?]: Removed 482 outVars from TransFormulas that were not future-live. [2024-10-24 01:40:02,607 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:40:02,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:40:02,677 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:40:02,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:40:02 BoogieIcfgContainer [2024-10-24 01:40:02,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:40:02,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:40:02,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:40:02,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:40:02,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:39:59" (1/3) ... [2024-10-24 01:40:02,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2558563a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:40:02, skipping insertion in model container [2024-10-24 01:40:02,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:40:00" (2/3) ... [2024-10-24 01:40:02,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2558563a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:40:02, skipping insertion in model container [2024-10-24 01:40:02,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:40:02" (3/3) ... [2024-10-24 01:40:02,692 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-10-24 01:40:02,711 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:40:02,711 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 01:40:02,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:40:02,799 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;@5232c2b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:40:02,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 01:40:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 440 states, 435 states have (on average 1.8620689655172413) internal successors, (810), 439 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:02,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:40:02,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:02,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:02,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:02,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:02,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1301084090, now seen corresponding path program 1 times [2024-10-24 01:40:02,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:02,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518255740] [2024-10-24 01:40:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:02,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518255740] [2024-10-24 01:40:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518255740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:03,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:03,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779267141] [2024-10-24 01:40:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:03,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:03,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:03,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:03,369 INFO L87 Difference]: Start difference. First operand has 440 states, 435 states have (on average 1.8620689655172413) internal successors, (810), 439 states have internal predecessors, (810), 0 states have call successors, (0), 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 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:03,539 INFO L93 Difference]: Finished difference Result 686 states and 1211 transitions. [2024-10-24 01:40:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-24 01:40:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:03,562 INFO L225 Difference]: With dead ends: 686 [2024-10-24 01:40:03,562 INFO L226 Difference]: Without dead ends: 545 [2024-10-24 01:40:03,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:03,569 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 421 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:03,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1352 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-10-24 01:40:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2024-10-24 01:40:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 535 states have (on average 1.3345794392523365) internal successors, (714), 538 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 714 transitions. [2024-10-24 01:40:03,639 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 714 transitions. Word has length 49 [2024-10-24 01:40:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:03,640 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 714 transitions. [2024-10-24 01:40:03,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 714 transitions. [2024-10-24 01:40:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:40:03,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:03,645 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:03,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:40:03,646 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)] === [2024-10-24 01:40:03,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash 330742932, now seen corresponding path program 1 times [2024-10-24 01:40:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790796645] [2024-10-24 01:40:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:03,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:03,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790796645] [2024-10-24 01:40:03,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790796645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:03,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270520103] [2024-10-24 01:40:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:03,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:03,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:03,834 INFO L87 Difference]: Start difference. First operand 539 states and 714 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:03,892 INFO L93 Difference]: Finished difference Result 954 states and 1316 transitions. [2024-10-24 01:40:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:03,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-24 01:40:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:03,896 INFO L225 Difference]: With dead ends: 954 [2024-10-24 01:40:03,896 INFO L226 Difference]: Without dead ends: 713 [2024-10-24 01:40:03,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:03,901 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 236 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:03,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1016 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:03,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-10-24 01:40:03,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 707. [2024-10-24 01:40:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 703 states have (on average 1.3541963015647227) internal successors, (952), 706 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 952 transitions. [2024-10-24 01:40:03,944 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 952 transitions. Word has length 49 [2024-10-24 01:40:03,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:03,944 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 952 transitions. [2024-10-24 01:40:03,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 952 transitions. [2024-10-24 01:40:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:40:03,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:03,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:03,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:40:03,947 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)] === [2024-10-24 01:40:03,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash 720921363, now seen corresponding path program 1 times [2024-10-24 01:40:03,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:03,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513606195] [2024-10-24 01:40:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:03,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:04,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:04,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513606195] [2024-10-24 01:40:04,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513606195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:04,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:04,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:04,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312352075] [2024-10-24 01:40:04,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:04,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:04,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:04,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:04,088 INFO L87 Difference]: Start difference. First operand 707 states and 952 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:04,163 INFO L93 Difference]: Finished difference Result 1363 states and 1887 transitions. [2024-10-24 01:40:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:04,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-24 01:40:04,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:04,169 INFO L225 Difference]: With dead ends: 1363 [2024-10-24 01:40:04,169 INFO L226 Difference]: Without dead ends: 1034 [2024-10-24 01:40:04,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:04,173 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 297 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:04,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 992 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:04,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-10-24 01:40:04,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1027. [2024-10-24 01:40:04,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1023 states have (on average 1.364613880742913) internal successors, (1396), 1026 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1396 transitions. [2024-10-24 01:40:04,205 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1396 transitions. Word has length 49 [2024-10-24 01:40:04,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:04,206 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1396 transitions. [2024-10-24 01:40:04,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1396 transitions. [2024-10-24 01:40:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 01:40:04,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:04,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:04,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:40:04,210 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)] === [2024-10-24 01:40:04,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:04,212 INFO L85 PathProgramCache]: Analyzing trace with hash 576637481, now seen corresponding path program 1 times [2024-10-24 01:40:04,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:04,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700519969] [2024-10-24 01:40:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:04,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:04,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:04,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700519969] [2024-10-24 01:40:04,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700519969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:04,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:04,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:40:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688380679] [2024-10-24 01:40:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:04,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:04,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:04,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:04,399 INFO L87 Difference]: Start difference. First operand 1027 states and 1396 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:04,789 INFO L93 Difference]: Finished difference Result 2116 states and 2919 transitions. [2024-10-24 01:40:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-24 01:40:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:04,796 INFO L225 Difference]: With dead ends: 2116 [2024-10-24 01:40:04,796 INFO L226 Difference]: Without dead ends: 1254 [2024-10-24 01:40:04,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:04,800 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 1690 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:04,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 397 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:04,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-10-24 01:40:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1244. [2024-10-24 01:40:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1240 states have (on average 1.3741935483870968) internal successors, (1704), 1243 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1704 transitions. [2024-10-24 01:40:04,832 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1704 transitions. Word has length 49 [2024-10-24 01:40:04,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:04,833 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 1704 transitions. [2024-10-24 01:40:04,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1704 transitions. [2024-10-24 01:40:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 01:40:04,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:04,836 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] [2024-10-24 01:40:04,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:40:04,837 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:04,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1587514867, now seen corresponding path program 1 times [2024-10-24 01:40:04,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:04,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384352708] [2024-10-24 01:40:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:05,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:05,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384352708] [2024-10-24 01:40:05,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384352708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:05,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:05,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:40:05,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886848960] [2024-10-24 01:40:05,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:05,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:05,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:05,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:05,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:05,011 INFO L87 Difference]: Start difference. First operand 1244 states and 1704 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) [2024-10-24 01:40:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:05,299 INFO L93 Difference]: Finished difference Result 2642 states and 3661 transitions. [2024-10-24 01:40:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:05,300 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 [2024-10-24 01:40:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:05,307 INFO L225 Difference]: With dead ends: 2642 [2024-10-24 01:40:05,308 INFO L226 Difference]: Without dead ends: 1578 [2024-10-24 01:40:05,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:05,310 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 1442 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:05,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 340 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-10-24 01:40:05,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1176. [2024-10-24 01:40:05,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 1172 states have (on average 1.3728668941979523) internal successors, (1609), 1175 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:05,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1609 transitions. [2024-10-24 01:40:05,341 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1609 transitions. Word has length 50 [2024-10-24 01:40:05,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:05,341 INFO L471 AbstractCegarLoop]: Abstraction has 1176 states and 1609 transitions. [2024-10-24 01:40:05,342 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) [2024-10-24 01:40:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1609 transitions. [2024-10-24 01:40:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 01:40:05,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:05,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:05,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:40:05,345 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)] === [2024-10-24 01:40:05,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1791927347, now seen corresponding path program 1 times [2024-10-24 01:40:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:05,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088458971] [2024-10-24 01:40:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:05,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:05,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:05,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088458971] [2024-10-24 01:40:05,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088458971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:05,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:05,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:40:05,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290631961] [2024-10-24 01:40:05,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:05,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:05,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:05,517 INFO L87 Difference]: Start difference. First operand 1176 states and 1609 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) [2024-10-24 01:40:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:05,803 INFO L93 Difference]: Finished difference Result 2591 states and 3566 transitions. [2024-10-24 01:40:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:05,803 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 [2024-10-24 01:40:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:05,809 INFO L225 Difference]: With dead ends: 2591 [2024-10-24 01:40:05,809 INFO L226 Difference]: Without dead ends: 1533 [2024-10-24 01:40:05,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:05,812 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1280 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:05,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 314 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2024-10-24 01:40:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1520. [2024-10-24 01:40:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1516 states have (on average 1.3647757255936674) internal successors, (2069), 1519 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:05,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2069 transitions. [2024-10-24 01:40:05,850 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2069 transitions. Word has length 50 [2024-10-24 01:40:05,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:05,850 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 2069 transitions. [2024-10-24 01:40:05,851 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) [2024-10-24 01:40:05,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2069 transitions. [2024-10-24 01:40:05,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 01:40:05,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:05,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:05,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:40:05,853 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)] === [2024-10-24 01:40:05,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:05,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1949776378, now seen corresponding path program 1 times [2024-10-24 01:40:05,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:05,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979129525] [2024-10-24 01:40:05,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:05,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:06,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:06,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979129525] [2024-10-24 01:40:06,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979129525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:06,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:06,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:40:06,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376528453] [2024-10-24 01:40:06,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:06,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:40:06,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:06,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:40:06,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:06,034 INFO L87 Difference]: Start difference. First operand 1520 states and 2069 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:06,503 INFO L93 Difference]: Finished difference Result 3019 states and 4170 transitions. [2024-10-24 01:40:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:40:06,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-10-24 01:40:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:06,512 INFO L225 Difference]: With dead ends: 3019 [2024-10-24 01:40:06,512 INFO L226 Difference]: Without dead ends: 2586 [2024-10-24 01:40:06,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:06,516 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 1846 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:06,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 609 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:40:06,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2024-10-24 01:40:06,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 1532. [2024-10-24 01:40:06,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1528 states have (on average 1.3645287958115184) internal successors, (2085), 1531 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2085 transitions. [2024-10-24 01:40:06,566 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2085 transitions. Word has length 51 [2024-10-24 01:40:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:06,567 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 2085 transitions. [2024-10-24 01:40:06,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:06,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2085 transitions. [2024-10-24 01:40:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-24 01:40:06,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:06,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:06,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:40:06,570 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)] === [2024-10-24 01:40:06,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:06,571 INFO L85 PathProgramCache]: Analyzing trace with hash -69419205, now seen corresponding path program 1 times [2024-10-24 01:40:06,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:06,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547672815] [2024-10-24 01:40:06,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:06,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:06,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:06,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547672815] [2024-10-24 01:40:06,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547672815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:06,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:06,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:40:06,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28907071] [2024-10-24 01:40:06,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:06,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:40:06,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:06,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:40:06,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:06,742 INFO L87 Difference]: Start difference. First operand 1532 states and 2085 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:07,105 INFO L93 Difference]: Finished difference Result 3011 states and 4151 transitions. [2024-10-24 01:40:07,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:40:07,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-10-24 01:40:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:07,115 INFO L225 Difference]: With dead ends: 3011 [2024-10-24 01:40:07,115 INFO L226 Difference]: Without dead ends: 2290 [2024-10-24 01:40:07,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:07,119 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1593 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:07,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 569 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:07,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2024-10-24 01:40:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1546. [2024-10-24 01:40:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1542 states have (on average 1.3638132295719845) internal successors, (2103), 1545 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:07,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2103 transitions. [2024-10-24 01:40:07,164 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2103 transitions. Word has length 52 [2024-10-24 01:40:07,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:07,165 INFO L471 AbstractCegarLoop]: Abstraction has 1546 states and 2103 transitions. [2024-10-24 01:40:07,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2103 transitions. [2024-10-24 01:40:07,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-24 01:40:07,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:07,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:07,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:40:07,168 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)] === [2024-10-24 01:40:07,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:07,169 INFO L85 PathProgramCache]: Analyzing trace with hash -452977476, now seen corresponding path program 1 times [2024-10-24 01:40:07,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:07,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920293395] [2024-10-24 01:40:07,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:07,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:07,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:07,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920293395] [2024-10-24 01:40:07,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920293395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:07,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:07,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:40:07,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761062469] [2024-10-24 01:40:07,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:07,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:40:07,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:07,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:40:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:07,323 INFO L87 Difference]: Start difference. First operand 1546 states and 2103 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:07,775 INFO L93 Difference]: Finished difference Result 3305 states and 4586 transitions. [2024-10-24 01:40:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:40:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-10-24 01:40:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:07,786 INFO L225 Difference]: With dead ends: 3305 [2024-10-24 01:40:07,786 INFO L226 Difference]: Without dead ends: 2755 [2024-10-24 01:40:07,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:07,789 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1718 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:07,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 590 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:40:07,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2024-10-24 01:40:07,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1568. [2024-10-24 01:40:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1564 states have (on average 1.3644501278772379) internal successors, (2134), 1567 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2134 transitions. [2024-10-24 01:40:07,837 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2134 transitions. Word has length 52 [2024-10-24 01:40:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:07,837 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2134 transitions. [2024-10-24 01:40:07,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2134 transitions. [2024-10-24 01:40:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 01:40:07,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:07,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:07,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:40:07,840 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:07,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:07,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1319484265, now seen corresponding path program 1 times [2024-10-24 01:40:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:07,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041662614] [2024-10-24 01:40:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:07,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:08,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041662614] [2024-10-24 01:40:08,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041662614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:08,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:08,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:40:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144567842] [2024-10-24 01:40:08,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:08,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:40:08,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:40:08,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:08,104 INFO L87 Difference]: Start difference. First operand 1568 states and 2134 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:08,541 INFO L93 Difference]: Finished difference Result 3263 states and 4519 transitions. [2024-10-24 01:40:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:40:08,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-24 01:40:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:08,548 INFO L225 Difference]: With dead ends: 3263 [2024-10-24 01:40:08,549 INFO L226 Difference]: Without dead ends: 2213 [2024-10-24 01:40:08,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:08,551 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 847 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:08,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 722 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:40:08,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2024-10-24 01:40:08,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 1568. [2024-10-24 01:40:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1564 states have (on average 1.3612531969309463) internal successors, (2129), 1567 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:08,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2129 transitions. [2024-10-24 01:40:08,609 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2129 transitions. Word has length 53 [2024-10-24 01:40:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:08,610 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2129 transitions. [2024-10-24 01:40:08,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:08,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2129 transitions. [2024-10-24 01:40:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 01:40:08,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:08,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:08,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:40:08,612 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:08,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:08,613 INFO L85 PathProgramCache]: Analyzing trace with hash 349143107, now seen corresponding path program 1 times [2024-10-24 01:40:08,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:08,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358237153] [2024-10-24 01:40:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:08,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:08,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:08,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:08,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358237153] [2024-10-24 01:40:08,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358237153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:08,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:08,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:40:08,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514111628] [2024-10-24 01:40:08,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:08,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:40:08,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:08,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:40:08,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:40:08,871 INFO L87 Difference]: Start difference. First operand 1568 states and 2129 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:09,415 INFO L93 Difference]: Finished difference Result 3630 states and 5035 transitions. [2024-10-24 01:40:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 01:40:09,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-24 01:40:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:09,425 INFO L225 Difference]: With dead ends: 3630 [2024-10-24 01:40:09,425 INFO L226 Difference]: Without dead ends: 2708 [2024-10-24 01:40:09,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-24 01:40:09,428 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 797 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:09,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1135 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:40:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2024-10-24 01:40:09,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 1539. [2024-10-24 01:40:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1535 states have (on average 1.3602605863192183) internal successors, (2088), 1538 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2088 transitions. [2024-10-24 01:40:09,464 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2088 transitions. Word has length 53 [2024-10-24 01:40:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:09,464 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 2088 transitions. [2024-10-24 01:40:09,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2088 transitions. [2024-10-24 01:40:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 01:40:09,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:09,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:09,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:40:09,466 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:09,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1201478424, now seen corresponding path program 1 times [2024-10-24 01:40:09,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:09,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554041244] [2024-10-24 01:40:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:09,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:09,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554041244] [2024-10-24 01:40:09,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554041244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:09,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:09,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:40:09,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255951563] [2024-10-24 01:40:09,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:09,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:40:09,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:40:09,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:40:09,802 INFO L87 Difference]: Start difference. First operand 1539 states and 2088 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:10,373 INFO L93 Difference]: Finished difference Result 2261 states and 3081 transitions. [2024-10-24 01:40:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:40:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-24 01:40:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:10,379 INFO L225 Difference]: With dead ends: 2261 [2024-10-24 01:40:10,379 INFO L226 Difference]: Without dead ends: 2256 [2024-10-24 01:40:10,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:40:10,381 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 1406 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:10,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1012 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:40:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-10-24 01:40:10,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1539. [2024-10-24 01:40:10,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1535 states have (on average 1.358957654723127) internal successors, (2086), 1538 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) [2024-10-24 01:40:10,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2086 transitions. [2024-10-24 01:40:10,414 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2086 transitions. Word has length 53 [2024-10-24 01:40:10,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:10,414 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 2086 transitions. [2024-10-24 01:40:10,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2086 transitions. [2024-10-24 01:40:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 01:40:10,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:10,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:10,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:40:10,416 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)] === [2024-10-24 01:40:10,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:10,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1505770560, now seen corresponding path program 1 times [2024-10-24 01:40:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:10,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892267365] [2024-10-24 01:40:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:10,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:10,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:10,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892267365] [2024-10-24 01:40:10,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892267365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:10,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:10,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:10,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338641607] [2024-10-24 01:40:10,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:10,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:10,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:10,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:10,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,474 INFO L87 Difference]: Start difference. First operand 1539 states and 2086 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:10,504 INFO L93 Difference]: Finished difference Result 2067 states and 2796 transitions. [2024-10-24 01:40:10,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:10,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-24 01:40:10,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:10,509 INFO L225 Difference]: With dead ends: 2067 [2024-10-24 01:40:10,509 INFO L226 Difference]: Without dead ends: 1508 [2024-10-24 01:40:10,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,511 INFO L432 NwaCegarLoop]: 468 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, 671 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:10,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 671 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:10,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-10-24 01:40:10,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1506. [2024-10-24 01:40:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1502 states have (on average 1.329560585885486) internal successors, (1997), 1505 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1997 transitions. [2024-10-24 01:40:10,532 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1997 transitions. Word has length 54 [2024-10-24 01:40:10,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:10,532 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 1997 transitions. [2024-10-24 01:40:10,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1997 transitions. [2024-10-24 01:40:10,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 01:40:10,534 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:10,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:10,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:40:10,535 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)] === [2024-10-24 01:40:10,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash 344827121, now seen corresponding path program 1 times [2024-10-24 01:40:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653630511] [2024-10-24 01:40:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:10,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:10,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:10,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653630511] [2024-10-24 01:40:10,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653630511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:10,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:10,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:10,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400694885] [2024-10-24 01:40:10,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:10,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:10,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:10,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:10,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,613 INFO L87 Difference]: Start difference. First operand 1506 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:10,652 INFO L93 Difference]: Finished difference Result 2126 states and 2842 transitions. [2024-10-24 01:40:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:10,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-24 01:40:10,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:10,657 INFO L225 Difference]: With dead ends: 2126 [2024-10-24 01:40:10,657 INFO L226 Difference]: Without dead ends: 1513 [2024-10-24 01:40:10,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,659 INFO L432 NwaCegarLoop]: 468 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, 742 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:10,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 742 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:10,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-10-24 01:40:10,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1506. [2024-10-24 01:40:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1502 states have (on average 1.3142476697736352) internal successors, (1974), 1505 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1974 transitions. [2024-10-24 01:40:10,681 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1974 transitions. Word has length 54 [2024-10-24 01:40:10,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:10,681 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 1974 transitions. [2024-10-24 01:40:10,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1974 transitions. [2024-10-24 01:40:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 01:40:10,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:10,683 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:10,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:40:10,683 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)] === [2024-10-24 01:40:10,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:10,685 INFO L85 PathProgramCache]: Analyzing trace with hash 718424117, now seen corresponding path program 1 times [2024-10-24 01:40:10,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:10,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562061615] [2024-10-24 01:40:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:10,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:10,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:10,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:10,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562061615] [2024-10-24 01:40:10,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562061615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:10,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:10,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:10,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346680588] [2024-10-24 01:40:10,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:10,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:10,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:10,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,751 INFO L87 Difference]: Start difference. First operand 1506 states and 1974 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:10,783 INFO L93 Difference]: Finished difference Result 2163 states and 2860 transitions. [2024-10-24 01:40:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-24 01:40:10,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:10,792 INFO L225 Difference]: With dead ends: 2163 [2024-10-24 01:40:10,792 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 01:40:10,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,794 INFO L432 NwaCegarLoop]: 480 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, 743 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:10,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 743 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 01:40:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1506. [2024-10-24 01:40:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1502 states have (on average 1.3022636484687085) internal successors, (1956), 1505 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 1956 transitions. [2024-10-24 01:40:10,821 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 1956 transitions. Word has length 54 [2024-10-24 01:40:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:10,821 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 1956 transitions. [2024-10-24 01:40:10,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 1956 transitions. [2024-10-24 01:40:10,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:40:10,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:10,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:10,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:40:10,824 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)] === [2024-10-24 01:40:10,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash -659100434, now seen corresponding path program 1 times [2024-10-24 01:40:10,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:10,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580219226] [2024-10-24 01:40:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:10,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:10,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580219226] [2024-10-24 01:40:10,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580219226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:10,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:10,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:10,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985856203] [2024-10-24 01:40:10,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:10,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:10,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:10,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:10,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,879 INFO L87 Difference]: Start difference. First operand 1506 states and 1956 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:10,964 INFO L93 Difference]: Finished difference Result 2637 states and 3458 transitions. [2024-10-24 01:40:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:10,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 01:40:10,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:10,973 INFO L225 Difference]: With dead ends: 2637 [2024-10-24 01:40:10,973 INFO L226 Difference]: Without dead ends: 1785 [2024-10-24 01:40:10,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:10,976 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 280 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:10,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 418 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:10,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-10-24 01:40:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1396. [2024-10-24 01:40:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1392 states have (on average 1.3060344827586208) internal successors, (1818), 1395 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1818 transitions. [2024-10-24 01:40:10,997 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1818 transitions. Word has length 56 [2024-10-24 01:40:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:10,997 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1818 transitions. [2024-10-24 01:40:10,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1818 transitions. [2024-10-24 01:40:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:40:10,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:11,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:11,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:40:11,000 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)] === [2024-10-24 01:40:11,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:11,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1013300567, now seen corresponding path program 1 times [2024-10-24 01:40:11,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:11,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311217567] [2024-10-24 01:40:11,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:11,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:12,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311217567] [2024-10-24 01:40:12,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311217567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:12,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:12,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 01:40:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634024573] [2024-10-24 01:40:12,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:12,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 01:40:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 01:40:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:12,076 INFO L87 Difference]: Start difference. First operand 1396 states and 1818 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:13,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:13,470 INFO L93 Difference]: Finished difference Result 2903 states and 3840 transitions. [2024-10-24 01:40:13,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 01:40:13,471 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 01:40:13,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:13,476 INFO L225 Difference]: With dead ends: 2903 [2024-10-24 01:40:13,476 INFO L226 Difference]: Without dead ends: 2899 [2024-10-24 01:40:13,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2024-10-24 01:40:13,478 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 2883 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:13,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 2526 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:40:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2024-10-24 01:40:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1408. [2024-10-24 01:40:13,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1404 states have (on average 1.306980056980057) internal successors, (1835), 1407 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1835 transitions. [2024-10-24 01:40:13,504 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1835 transitions. Word has length 56 [2024-10-24 01:40:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:13,505 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1835 transitions. [2024-10-24 01:40:13,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1835 transitions. [2024-10-24 01:40:13,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:40:13,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:13,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:13,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:40:13,507 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)] === [2024-10-24 01:40:13,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:13,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1322328818, now seen corresponding path program 1 times [2024-10-24 01:40:13,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:13,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370678686] [2024-10-24 01:40:13,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:13,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:14,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:14,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:14,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370678686] [2024-10-24 01:40:14,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370678686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:14,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:14,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:40:14,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405359745] [2024-10-24 01:40:14,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:14,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:40:14,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:14,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:40:14,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:14,087 INFO L87 Difference]: Start difference. First operand 1408 states and 1835 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:14,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:14,652 INFO L93 Difference]: Finished difference Result 2282 states and 3012 transitions. [2024-10-24 01:40:14,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:40:14,652 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 01:40:14,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:14,660 INFO L225 Difference]: With dead ends: 2282 [2024-10-24 01:40:14,661 INFO L226 Difference]: Without dead ends: 2221 [2024-10-24 01:40:14,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:40:14,662 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1770 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:14,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 1598 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2024-10-24 01:40:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 1396. [2024-10-24 01:40:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1393 states have (on average 1.3072505384063173) internal successors, (1821), 1395 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1821 transitions. [2024-10-24 01:40:14,688 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1821 transitions. Word has length 56 [2024-10-24 01:40:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:14,688 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1821 transitions. [2024-10-24 01:40:14,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1821 transitions. [2024-10-24 01:40:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:40:14,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:14,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:14,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:40:14,694 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:14,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:14,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1858860073, now seen corresponding path program 1 times [2024-10-24 01:40:14,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:14,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954916367] [2024-10-24 01:40:14,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:14,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:15,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:15,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954916367] [2024-10-24 01:40:15,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954916367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:15,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:15,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 01:40:15,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850674588] [2024-10-24 01:40:15,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:15,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 01:40:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:15,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 01:40:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:15,549 INFO L87 Difference]: Start difference. First operand 1396 states and 1821 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:17,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:17,127 INFO L93 Difference]: Finished difference Result 2885 states and 3820 transitions. [2024-10-24 01:40:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 01:40:17,127 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 01:40:17,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:17,138 INFO L225 Difference]: With dead ends: 2885 [2024-10-24 01:40:17,138 INFO L226 Difference]: Without dead ends: 2881 [2024-10-24 01:40:17,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=841, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 01:40:17,140 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 2633 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:17,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2633 Valid, 3262 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:40:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-10-24 01:40:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1403. [2024-10-24 01:40:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1400 states have (on average 1.3071428571428572) internal successors, (1830), 1402 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1830 transitions. [2024-10-24 01:40:17,175 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1830 transitions. Word has length 56 [2024-10-24 01:40:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:17,175 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1830 transitions. [2024-10-24 01:40:17,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1830 transitions. [2024-10-24 01:40:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 01:40:17,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:17,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:17,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:40:17,178 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:17,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1022076786, now seen corresponding path program 1 times [2024-10-24 01:40:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:17,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720310270] [2024-10-24 01:40:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:17,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:17,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720310270] [2024-10-24 01:40:17,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720310270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:17,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:17,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:17,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091924715] [2024-10-24 01:40:17,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:17,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:17,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:17,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:17,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:17,231 INFO L87 Difference]: Start difference. First operand 1403 states and 1830 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:17,282 INFO L93 Difference]: Finished difference Result 2491 states and 3283 transitions. [2024-10-24 01:40:17,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:17,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-10-24 01:40:17,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:17,286 INFO L225 Difference]: With dead ends: 2491 [2024-10-24 01:40:17,286 INFO L226 Difference]: Without dead ends: 1671 [2024-10-24 01:40:17,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:17,288 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 240 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:17,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 409 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2024-10-24 01:40:17,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1335. [2024-10-24 01:40:17,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1332 states have (on average 1.307057057057057) internal successors, (1741), 1334 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1741 transitions. [2024-10-24 01:40:17,306 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1741 transitions. Word has length 56 [2024-10-24 01:40:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:17,306 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1741 transitions. [2024-10-24 01:40:17,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1741 transitions. [2024-10-24 01:40:17,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 01:40:17,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:17,308 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] [2024-10-24 01:40:17,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:40:17,309 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:17,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:17,309 INFO L85 PathProgramCache]: Analyzing trace with hash 839570380, now seen corresponding path program 1 times [2024-10-24 01:40:17,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:17,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160909395] [2024-10-24 01:40:17,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:17,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:17,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:17,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160909395] [2024-10-24 01:40:17,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160909395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:17,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:17,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:40:17,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630182981] [2024-10-24 01:40:17,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:17,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:40:17,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:17,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:40:17,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:17,856 INFO L87 Difference]: Start difference. First operand 1335 states and 1741 transitions. Second operand has 12 states, 12 states have (on average 4.75) 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) [2024-10-24 01:40:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:18,554 INFO L93 Difference]: Finished difference Result 1893 states and 2496 transitions. [2024-10-24 01:40:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:40:18,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) 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 [2024-10-24 01:40:18,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:18,557 INFO L225 Difference]: With dead ends: 1893 [2024-10-24 01:40:18,558 INFO L226 Difference]: Without dead ends: 1889 [2024-10-24 01:40:18,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:40:18,559 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1373 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:18,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1652 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:18,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-10-24 01:40:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1324. [2024-10-24 01:40:18,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1322 states have (on average 1.307110438729198) internal successors, (1728), 1323 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1728 transitions. [2024-10-24 01:40:18,576 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1728 transitions. Word has length 57 [2024-10-24 01:40:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:18,576 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 1728 transitions. [2024-10-24 01:40:18,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) 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) [2024-10-24 01:40:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1728 transitions. [2024-10-24 01:40:18,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-24 01:40:18,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:18,578 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] [2024-10-24 01:40:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:40:18,578 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:18,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:18,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1413626744, now seen corresponding path program 1 times [2024-10-24 01:40:18,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312577170] [2024-10-24 01:40:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:18,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:18,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312577170] [2024-10-24 01:40:18,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312577170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:18,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:18,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:40:18,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741302255] [2024-10-24 01:40:18,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:18,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:40:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:18,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:40:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:40:18,998 INFO L87 Difference]: Start difference. First operand 1324 states and 1728 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 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) [2024-10-24 01:40:19,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:19,426 INFO L93 Difference]: Finished difference Result 2305 states and 3052 transitions. [2024-10-24 01:40:19,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:40:19,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 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 [2024-10-24 01:40:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:19,433 INFO L225 Difference]: With dead ends: 2305 [2024-10-24 01:40:19,433 INFO L226 Difference]: Without dead ends: 2094 [2024-10-24 01:40:19,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:40:19,436 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 1236 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:19,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1256 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2024-10-24 01:40:19,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1287. [2024-10-24 01:40:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1286 states have (on average 1.307153965785381) internal successors, (1681), 1286 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1681 transitions. [2024-10-24 01:40:19,464 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1681 transitions. Word has length 57 [2024-10-24 01:40:19,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:19,464 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1681 transitions. [2024-10-24 01:40:19,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 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) [2024-10-24 01:40:19,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1681 transitions. [2024-10-24 01:40:19,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:40:19,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:19,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:19,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:40:19,470 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:19,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:19,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1322517094, now seen corresponding path program 1 times [2024-10-24 01:40:19,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606864744] [2024-10-24 01:40:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:19,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:19,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606864744] [2024-10-24 01:40:19,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606864744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:19,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:19,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:19,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030015107] [2024-10-24 01:40:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:19,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:19,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:19,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:19,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:19,569 INFO L87 Difference]: Start difference. First operand 1287 states and 1681 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:19,639 INFO L93 Difference]: Finished difference Result 3000 states and 4051 transitions. [2024-10-24 01:40:19,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:19,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-24 01:40:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:19,643 INFO L225 Difference]: With dead ends: 3000 [2024-10-24 01:40:19,644 INFO L226 Difference]: Without dead ends: 2290 [2024-10-24 01:40:19,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:19,646 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 870 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:19,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 696 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:19,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2024-10-24 01:40:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1943. [2024-10-24 01:40:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1943 states, 1942 states have (on average 1.3125643666323379) internal successors, (2549), 1942 states have internal predecessors, (2549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1943 states to 1943 states and 2549 transitions. [2024-10-24 01:40:19,671 INFO L78 Accepts]: Start accepts. Automaton has 1943 states and 2549 transitions. Word has length 65 [2024-10-24 01:40:19,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:19,671 INFO L471 AbstractCegarLoop]: Abstraction has 1943 states and 2549 transitions. [2024-10-24 01:40:19,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1943 states and 2549 transitions. [2024-10-24 01:40:19,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:40:19,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:19,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:19,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:40:19,676 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:19,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash 108341179, now seen corresponding path program 1 times [2024-10-24 01:40:19,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:19,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564170127] [2024-10-24 01:40:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:19,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:19,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:19,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564170127] [2024-10-24 01:40:19,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564170127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:19,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:19,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:19,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774803436] [2024-10-24 01:40:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:19,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:19,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:19,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:19,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:19,779 INFO L87 Difference]: Start difference. First operand 1943 states and 2549 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:19,843 INFO L93 Difference]: Finished difference Result 1949 states and 2552 transitions. [2024-10-24 01:40:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-24 01:40:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:19,847 INFO L225 Difference]: With dead ends: 1949 [2024-10-24 01:40:19,847 INFO L226 Difference]: Without dead ends: 1738 [2024-10-24 01:40:19,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:19,849 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 522 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:19,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 608 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:19,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-10-24 01:40:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1734. [2024-10-24 01:40:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1733 states have (on average 1.3173687247547605) internal successors, (2283), 1733 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2283 transitions. [2024-10-24 01:40:19,873 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2283 transitions. Word has length 66 [2024-10-24 01:40:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:19,873 INFO L471 AbstractCegarLoop]: Abstraction has 1734 states and 2283 transitions. [2024-10-24 01:40:19,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2283 transitions. [2024-10-24 01:40:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:40:19,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:19,876 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] [2024-10-24 01:40:19,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:40:19,877 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:19,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1989878878, now seen corresponding path program 1 times [2024-10-24 01:40:19,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:19,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773557338] [2024-10-24 01:40:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:19,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:19,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:19,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773557338] [2024-10-24 01:40:19,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773557338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:19,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:19,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:19,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704454027] [2024-10-24 01:40:19,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:19,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:19,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:19,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:19,973 INFO L87 Difference]: Start difference. First operand 1734 states and 2283 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:20,006 INFO L93 Difference]: Finished difference Result 3926 states and 5261 transitions. [2024-10-24 01:40:20,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:20,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-24 01:40:20,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:20,010 INFO L225 Difference]: With dead ends: 3926 [2024-10-24 01:40:20,011 INFO L226 Difference]: Without dead ends: 2664 [2024-10-24 01:40:20,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:20,013 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 125 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:20,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 486 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2024-10-24 01:40:20,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2534. [2024-10-24 01:40:20,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2534 states, 2533 states have (on average 1.3166206079747336) internal successors, (3335), 2533 states have internal predecessors, (3335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3335 transitions. [2024-10-24 01:40:20,047 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3335 transitions. Word has length 67 [2024-10-24 01:40:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:20,047 INFO L471 AbstractCegarLoop]: Abstraction has 2534 states and 3335 transitions. [2024-10-24 01:40:20,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3335 transitions. [2024-10-24 01:40:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:40:20,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:20,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:20,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:40:20,050 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:20,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash 72594775, now seen corresponding path program 1 times [2024-10-24 01:40:20,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:20,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262141070] [2024-10-24 01:40:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:20,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262141070] [2024-10-24 01:40:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262141070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594267662] [2024-10-24 01:40:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:20,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:20,192 INFO L87 Difference]: Start difference. First operand 2534 states and 3335 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:20,240 INFO L93 Difference]: Finished difference Result 6418 states and 8597 transitions. [2024-10-24 01:40:20,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:20,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-24 01:40:20,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:20,248 INFO L225 Difference]: With dead ends: 6418 [2024-10-24 01:40:20,249 INFO L226 Difference]: Without dead ends: 4376 [2024-10-24 01:40:20,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:20,253 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 107 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 481 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 [2024-10-24 01:40:20,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 481 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4376 states. [2024-10-24 01:40:20,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4376 to 4070. [2024-10-24 01:40:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 4069 states have (on average 1.3224379454411404) internal successors, (5381), 4069 states have internal predecessors, (5381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5381 transitions. [2024-10-24 01:40:20,307 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5381 transitions. Word has length 67 [2024-10-24 01:40:20,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:20,307 INFO L471 AbstractCegarLoop]: Abstraction has 4070 states and 5381 transitions. [2024-10-24 01:40:20,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5381 transitions. [2024-10-24 01:40:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:40:20,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:20,310 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:20,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:40:20,310 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:20,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash 510967437, now seen corresponding path program 1 times [2024-10-24 01:40:20,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:20,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869922708] [2024-10-24 01:40:20,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:20,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:20,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869922708] [2024-10-24 01:40:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869922708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:20,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:20,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241506829] [2024-10-24 01:40:20,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:20,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:20,401 INFO L87 Difference]: Start difference. First operand 4070 states and 5381 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:20,455 INFO L93 Difference]: Finished difference Result 10826 states and 14431 transitions. [2024-10-24 01:40:20,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:20,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:40:20,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:20,467 INFO L225 Difference]: With dead ends: 10826 [2024-10-24 01:40:20,468 INFO L226 Difference]: Without dead ends: 7248 [2024-10-24 01:40:20,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:20,474 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 85 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:20,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 477 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7248 states. [2024-10-24 01:40:20,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7248 to 6638. [2024-10-24 01:40:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 1.3164080156697302) internal successors, (8737), 6637 states have internal predecessors, (8737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 8737 transitions. [2024-10-24 01:40:20,565 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 8737 transitions. Word has length 69 [2024-10-24 01:40:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:20,566 INFO L471 AbstractCegarLoop]: Abstraction has 6638 states and 8737 transitions. [2024-10-24 01:40:20,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 8737 transitions. [2024-10-24 01:40:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 01:40:20,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:20,568 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:20,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:40:20,568 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:20,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash -398019238, now seen corresponding path program 1 times [2024-10-24 01:40:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:20,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811689943] [2024-10-24 01:40:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:20,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:20,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811689943] [2024-10-24 01:40:20,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811689943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:20,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:20,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:40:20,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456106031] [2024-10-24 01:40:20,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:20,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:40:20,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:20,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:40:20,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:40:20,764 INFO L87 Difference]: Start difference. First operand 6638 states and 8737 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:20,857 INFO L93 Difference]: Finished difference Result 7312 states and 9634 transitions. [2024-10-24 01:40:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:40:20,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-10-24 01:40:20,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:20,870 INFO L225 Difference]: With dead ends: 7312 [2024-10-24 01:40:20,870 INFO L226 Difference]: Without dead ends: 7310 [2024-10-24 01:40:20,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:40:20,872 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:20,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1164 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:20,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2024-10-24 01:40:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 7310. [2024-10-24 01:40:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7310 states, 7309 states have (on average 1.2873170064304282) internal successors, (9409), 7309 states have internal predecessors, (9409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7310 states to 7310 states and 9409 transitions. [2024-10-24 01:40:20,958 INFO L78 Accepts]: Start accepts. Automaton has 7310 states and 9409 transitions. Word has length 71 [2024-10-24 01:40:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:20,959 INFO L471 AbstractCegarLoop]: Abstraction has 7310 states and 9409 transitions. [2024-10-24 01:40:20,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:20,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7310 states and 9409 transitions. [2024-10-24 01:40:20,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-24 01:40:20,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:20,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:20,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:40:20,962 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:20,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:20,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1736371778, now seen corresponding path program 1 times [2024-10-24 01:40:20,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:20,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683369284] [2024-10-24 01:40:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:20,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:21,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:21,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683369284] [2024-10-24 01:40:21,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683369284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:21,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:21,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:21,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864126424] [2024-10-24 01:40:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:21,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:21,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:21,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:21,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:21,013 INFO L87 Difference]: Start difference. First operand 7310 states and 9409 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:21,073 INFO L93 Difference]: Finished difference Result 17498 states and 22507 transitions. [2024-10-24 01:40:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:21,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-24 01:40:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:21,093 INFO L225 Difference]: With dead ends: 17498 [2024-10-24 01:40:21,093 INFO L226 Difference]: Without dead ends: 10680 [2024-10-24 01:40:21,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:21,104 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 150 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:21,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 369 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:21,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2024-10-24 01:40:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 10678. [2024-10-24 01:40:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10678 states, 10677 states have (on average 1.2678655052917487) internal successors, (13537), 10677 states have internal predecessors, (13537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10678 states to 10678 states and 13537 transitions. [2024-10-24 01:40:21,236 INFO L78 Accepts]: Start accepts. Automaton has 10678 states and 13537 transitions. Word has length 72 [2024-10-24 01:40:21,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:21,236 INFO L471 AbstractCegarLoop]: Abstraction has 10678 states and 13537 transitions. [2024-10-24 01:40:21,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10678 states and 13537 transitions. [2024-10-24 01:40:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-24 01:40:21,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:21,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:21,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:40:21,239 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:21,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:21,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1737941533, now seen corresponding path program 1 times [2024-10-24 01:40:21,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:21,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430231600] [2024-10-24 01:40:21,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:21,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:21,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:21,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:21,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430231600] [2024-10-24 01:40:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430231600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:21,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:21,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:21,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204917737] [2024-10-24 01:40:21,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:21,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:21,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:21,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:21,335 INFO L87 Difference]: Start difference. First operand 10678 states and 13537 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:21,436 INFO L93 Difference]: Finished difference Result 15766 states and 20127 transitions. [2024-10-24 01:40:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:21,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-24 01:40:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:21,463 INFO L225 Difference]: With dead ends: 15766 [2024-10-24 01:40:21,463 INFO L226 Difference]: Without dead ends: 13448 [2024-10-24 01:40:21,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:21,472 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 522 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:21,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 828 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13448 states. [2024-10-24 01:40:21,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13448 to 12224. [2024-10-24 01:40:21,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12224 states, 12223 states have (on average 1.2654012926450136) internal successors, (15467), 12223 states have internal predecessors, (15467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12224 states to 12224 states and 15467 transitions. [2024-10-24 01:40:21,667 INFO L78 Accepts]: Start accepts. Automaton has 12224 states and 15467 transitions. Word has length 73 [2024-10-24 01:40:21,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:21,667 INFO L471 AbstractCegarLoop]: Abstraction has 12224 states and 15467 transitions. [2024-10-24 01:40:21,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 12224 states and 15467 transitions. [2024-10-24 01:40:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 01:40:21,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:21,669 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] [2024-10-24 01:40:21,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:40:21,670 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:21,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1011405974, now seen corresponding path program 1 times [2024-10-24 01:40:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:21,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417572897] [2024-10-24 01:40:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:21,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:21,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417572897] [2024-10-24 01:40:21,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417572897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:21,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757386727] [2024-10-24 01:40:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:21,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:21,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:21,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:21,779 INFO L87 Difference]: Start difference. First operand 12224 states and 15467 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) [2024-10-24 01:40:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:21,883 INFO L93 Difference]: Finished difference Result 18088 states and 23067 transitions. [2024-10-24 01:40:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:21,884 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 [2024-10-24 01:40:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:21,910 INFO L225 Difference]: With dead ends: 18088 [2024-10-24 01:40:21,910 INFO L226 Difference]: Without dead ends: 14558 [2024-10-24 01:40:21,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:21,920 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 584 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:21,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 700 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:40:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14558 states. [2024-10-24 01:40:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14558 to 14132. [2024-10-24 01:40:22,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14132 states, 14131 states have (on average 1.26211874601939) internal successors, (17835), 14131 states have internal predecessors, (17835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14132 states to 14132 states and 17835 transitions. [2024-10-24 01:40:22,105 INFO L78 Accepts]: Start accepts. Automaton has 14132 states and 17835 transitions. Word has length 78 [2024-10-24 01:40:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:22,105 INFO L471 AbstractCegarLoop]: Abstraction has 14132 states and 17835 transitions. [2024-10-24 01:40:22,106 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) [2024-10-24 01:40:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 14132 states and 17835 transitions. [2024-10-24 01:40:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 01:40:22,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:22,112 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:22,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:40:22,112 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:22,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:22,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2083970906, now seen corresponding path program 1 times [2024-10-24 01:40:22,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:22,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868158986] [2024-10-24 01:40:22,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:22,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:22,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:22,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868158986] [2024-10-24 01:40:22,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868158986] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:22,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927636256] [2024-10-24 01:40:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:22,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:22,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:22,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:40:22,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 01:40:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:22,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 01:40:22,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:23,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:24,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927636256] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:24,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:24,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2024-10-24 01:40:24,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560839753] [2024-10-24 01:40:24,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:24,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 01:40:24,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:24,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 01:40:24,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:40:24,481 INFO L87 Difference]: Start difference. First operand 14132 states and 17835 transitions. Second operand has 23 states, 23 states have (on average 10.043478260869565) internal successors, (231), 22 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:26,081 INFO L93 Difference]: Finished difference Result 41524 states and 52595 transitions. [2024-10-24 01:40:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-24 01:40:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.043478260869565) internal successors, (231), 22 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-10-24 01:40:26,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:26,145 INFO L225 Difference]: With dead ends: 41524 [2024-10-24 01:40:26,145 INFO L226 Difference]: Without dead ends: 35148 [2024-10-24 01:40:26,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2024-10-24 01:40:26,163 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 2144 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:26,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 2236 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:40:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35148 states. [2024-10-24 01:40:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35148 to 23493. [2024-10-24 01:40:26,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23493 states, 23492 states have (on average 1.2658777456155288) internal successors, (29738), 23492 states have internal predecessors, (29738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23493 states to 23493 states and 29738 transitions. [2024-10-24 01:40:26,559 INFO L78 Accepts]: Start accepts. Automaton has 23493 states and 29738 transitions. Word has length 91 [2024-10-24 01:40:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:26,559 INFO L471 AbstractCegarLoop]: Abstraction has 23493 states and 29738 transitions. [2024-10-24 01:40:26,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.043478260869565) internal successors, (231), 22 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23493 states and 29738 transitions. [2024-10-24 01:40:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 01:40:26,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:26,568 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:26,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 01:40:26,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-10-24 01:40:26,770 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:26,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash -781105227, now seen corresponding path program 1 times [2024-10-24 01:40:26,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:26,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176310931] [2024-10-24 01:40:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:26,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:27,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:27,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176310931] [2024-10-24 01:40:27,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176310931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:27,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:27,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:40:27,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615179003] [2024-10-24 01:40:27,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:27,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:40:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:40:27,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:40:27,066 INFO L87 Difference]: Start difference. First operand 23493 states and 29738 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:27,633 INFO L93 Difference]: Finished difference Result 52768 states and 66517 transitions. [2024-10-24 01:40:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:40:27,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-10-24 01:40:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:27,702 INFO L225 Difference]: With dead ends: 52768 [2024-10-24 01:40:27,702 INFO L226 Difference]: Without dead ends: 41706 [2024-10-24 01:40:27,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:40:27,725 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 982 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:27,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 910 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:27,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41706 states. [2024-10-24 01:40:28,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41706 to 36139. [2024-10-24 01:40:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36139 states, 36138 states have (on average 1.2645691515855886) internal successors, (45699), 36138 states have internal predecessors, (45699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36139 states to 36139 states and 45699 transitions. [2024-10-24 01:40:28,241 INFO L78 Accepts]: Start accepts. Automaton has 36139 states and 45699 transitions. Word has length 92 [2024-10-24 01:40:28,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:28,241 INFO L471 AbstractCegarLoop]: Abstraction has 36139 states and 45699 transitions. [2024-10-24 01:40:28,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 36139 states and 45699 transitions. [2024-10-24 01:40:28,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 01:40:28,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:28,251 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:28,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 01:40:28,252 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:28,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1688666342, now seen corresponding path program 1 times [2024-10-24 01:40:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425062585] [2024-10-24 01:40:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:28,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:28,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425062585] [2024-10-24 01:40:28,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425062585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:28,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:28,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:28,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944939364] [2024-10-24 01:40:28,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:28,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:28,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:28,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:28,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:28,347 INFO L87 Difference]: Start difference. First operand 36139 states and 45699 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:28,775 INFO L93 Difference]: Finished difference Result 71555 states and 90595 transitions. [2024-10-24 01:40:28,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:28,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-10-24 01:40:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:28,834 INFO L225 Difference]: With dead ends: 71555 [2024-10-24 01:40:28,835 INFO L226 Difference]: Without dead ends: 36141 [2024-10-24 01:40:28,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:28,880 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 120 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:28,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 409 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:28,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36141 states. [2024-10-24 01:40:29,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36141 to 34989. [2024-10-24 01:40:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34989 states, 34988 states have (on average 1.2453698410883731) internal successors, (43573), 34988 states have internal predecessors, (43573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:29,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34989 states to 34989 states and 43573 transitions. [2024-10-24 01:40:29,479 INFO L78 Accepts]: Start accepts. Automaton has 34989 states and 43573 transitions. Word has length 92 [2024-10-24 01:40:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:29,481 INFO L471 AbstractCegarLoop]: Abstraction has 34989 states and 43573 transitions. [2024-10-24 01:40:29,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 34989 states and 43573 transitions. [2024-10-24 01:40:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 01:40:29,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:29,489 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:29,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 01:40:29,490 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:29,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:29,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1543038259, now seen corresponding path program 1 times [2024-10-24 01:40:29,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:29,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885660921] [2024-10-24 01:40:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:29,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 01:40:29,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885660921] [2024-10-24 01:40:29,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885660921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:29,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:29,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:40:29,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633996566] [2024-10-24 01:40:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:29,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:40:29,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:40:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:40:29,716 INFO L87 Difference]: Start difference. First operand 34989 states and 43573 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 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) [2024-10-24 01:40:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:30,431 INFO L93 Difference]: Finished difference Result 57610 states and 71704 transitions. [2024-10-24 01:40:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:40:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 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 [2024-10-24 01:40:30,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:30,467 INFO L225 Difference]: With dead ends: 57610 [2024-10-24 01:40:30,468 INFO L226 Difference]: Without dead ends: 35514 [2024-10-24 01:40:30,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:40:30,487 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1000 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:30,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 670 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:40:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35514 states. [2024-10-24 01:40:30,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35514 to 34951. [2024-10-24 01:40:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34951 states, 34950 states have (on average 1.2454077253218885) internal successors, (43527), 34950 states have internal predecessors, (43527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:30,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34951 states to 34951 states and 43527 transitions. [2024-10-24 01:40:30,973 INFO L78 Accepts]: Start accepts. Automaton has 34951 states and 43527 transitions. Word has length 92 [2024-10-24 01:40:30,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:30,973 INFO L471 AbstractCegarLoop]: Abstraction has 34951 states and 43527 transitions. [2024-10-24 01:40:30,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 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) [2024-10-24 01:40:30,973 INFO L276 IsEmpty]: Start isEmpty. Operand 34951 states and 43527 transitions. [2024-10-24 01:40:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 01:40:30,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:30,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:30,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 01:40:30,981 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:30,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:30,982 INFO L85 PathProgramCache]: Analyzing trace with hash -462977115, now seen corresponding path program 1 times [2024-10-24 01:40:30,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:30,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797864763] [2024-10-24 01:40:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:30,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 01:40:31,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797864763] [2024-10-24 01:40:31,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797864763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:31,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:31,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:40:31,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62094557] [2024-10-24 01:40:31,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:31,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 01:40:31,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:31,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 01:40:31,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:40:31,218 INFO L87 Difference]: Start difference. First operand 34951 states and 43527 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:31,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:31,956 INFO L93 Difference]: Finished difference Result 84610 states and 105444 transitions. [2024-10-24 01:40:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:40:31,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-24 01:40:31,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:32,033 INFO L225 Difference]: With dead ends: 84610 [2024-10-24 01:40:32,034 INFO L226 Difference]: Without dead ends: 61738 [2024-10-24 01:40:32,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:32,068 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 871 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:32,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 827 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:40:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61738 states. [2024-10-24 01:40:32,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61738 to 34870. [2024-10-24 01:40:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34870 states, 34869 states have (on average 1.245604978634317) internal successors, (43433), 34869 states have internal predecessors, (43433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34870 states to 34870 states and 43433 transitions. [2024-10-24 01:40:32,666 INFO L78 Accepts]: Start accepts. Automaton has 34870 states and 43433 transitions. Word has length 93 [2024-10-24 01:40:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:32,666 INFO L471 AbstractCegarLoop]: Abstraction has 34870 states and 43433 transitions. [2024-10-24 01:40:32,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 34870 states and 43433 transitions. [2024-10-24 01:40:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 01:40:32,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:32,675 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:32,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 01:40:32,675 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:32,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:32,675 INFO L85 PathProgramCache]: Analyzing trace with hash 328854441, now seen corresponding path program 1 times [2024-10-24 01:40:32,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:32,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096427178] [2024-10-24 01:40:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:32,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 01:40:32,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:32,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096427178] [2024-10-24 01:40:32,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096427178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:32,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:32,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:40:32,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555118351] [2024-10-24 01:40:32,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:32,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:40:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:32,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:40:32,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:32,896 INFO L87 Difference]: Start difference. First operand 34870 states and 43433 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:33,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:33,074 INFO L93 Difference]: Finished difference Result 67347 states and 84037 transitions. [2024-10-24 01:40:33,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:40:33,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-24 01:40:33,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:33,106 INFO L225 Difference]: With dead ends: 67347 [2024-10-24 01:40:33,107 INFO L226 Difference]: Without dead ends: 33083 [2024-10-24 01:40:33,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:40:33,127 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 189 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:33,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 182 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:33,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33083 states. [2024-10-24 01:40:33,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33083 to 33053. [2024-10-24 01:40:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33053 states, 33052 states have (on average 1.233964661745129) internal successors, (40785), 33052 states have internal predecessors, (40785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:33,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33053 states to 33053 states and 40785 transitions. [2024-10-24 01:40:33,508 INFO L78 Accepts]: Start accepts. Automaton has 33053 states and 40785 transitions. Word has length 93 [2024-10-24 01:40:33,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:33,508 INFO L471 AbstractCegarLoop]: Abstraction has 33053 states and 40785 transitions. [2024-10-24 01:40:33,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:33,508 INFO L276 IsEmpty]: Start isEmpty. Operand 33053 states and 40785 transitions. [2024-10-24 01:40:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 01:40:33,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:33,514 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:40:33,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 01:40:33,514 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:33,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:33,515 INFO L85 PathProgramCache]: Analyzing trace with hash -880423720, now seen corresponding path program 1 times [2024-10-24 01:40:33,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:33,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751276331] [2024-10-24 01:40:33,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:33,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:33,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:33,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751276331] [2024-10-24 01:40:33,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751276331] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:33,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347239694] [2024-10-24 01:40:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:33,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:33,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:33,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:40:33,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 01:40:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:34,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 01:40:34,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:34,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:34,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347239694] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:34,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:34,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-10-24 01:40:34,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226224319] [2024-10-24 01:40:34,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:34,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:40:34,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:40:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:40:34,801 INFO L87 Difference]: Start difference. First operand 33053 states and 40785 transitions. Second operand has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 11 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:35,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:35,073 INFO L93 Difference]: Finished difference Result 96327 states and 118567 transitions. [2024-10-24 01:40:35,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:40:35,073 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 11 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-24 01:40:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:35,286 INFO L225 Difference]: With dead ends: 96327 [2024-10-24 01:40:35,287 INFO L226 Difference]: Without dead ends: 63880 [2024-10-24 01:40:35,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:40:35,302 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 351 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:35,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1326 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63880 states. [2024-10-24 01:40:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63880 to 49770. [2024-10-24 01:40:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49770 states, 49769 states have (on average 1.2320118949546908) internal successors, (61316), 49769 states have internal predecessors, (61316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49770 states to 49770 states and 61316 transitions. [2024-10-24 01:40:35,850 INFO L78 Accepts]: Start accepts. Automaton has 49770 states and 61316 transitions. Word has length 93 [2024-10-24 01:40:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:35,850 INFO L471 AbstractCegarLoop]: Abstraction has 49770 states and 61316 transitions. [2024-10-24 01:40:35,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 11 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:35,851 INFO L276 IsEmpty]: Start isEmpty. Operand 49770 states and 61316 transitions. [2024-10-24 01:40:35,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 01:40:35,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:35,857 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] [2024-10-24 01:40:35,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 01:40:36,057 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,SelfDestructingSolverStorable37 [2024-10-24 01:40:36,058 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)] === [2024-10-24 01:40:36,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash -380472702, now seen corresponding path program 1 times [2024-10-24 01:40:36,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:36,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006571390] [2024-10-24 01:40:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:36,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:36,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:36,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006571390] [2024-10-24 01:40:36,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006571390] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:36,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526191492] [2024-10-24 01:40:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:36,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:36,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:36,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 01:40:36,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 01:40:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:36,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 01:40:36,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:36,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:36,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526191492] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:36,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:36,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-10-24 01:40:36,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309681845] [2024-10-24 01:40:36,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:36,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:40:36,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:36,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:40:36,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:40:36,991 INFO L87 Difference]: Start difference. First operand 49770 states and 61316 transitions. Second operand has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:37,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:37,612 INFO L93 Difference]: Finished difference Result 96821 states and 119160 transitions. [2024-10-24 01:40:37,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:40:37,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 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 [2024-10-24 01:40:37,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:37,669 INFO L225 Difference]: With dead ends: 96821 [2024-10-24 01:40:37,669 INFO L226 Difference]: Without dead ends: 47585 [2024-10-24 01:40:37,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:37,690 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 2196 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:37,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 787 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:37,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47585 states. [2024-10-24 01:40:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47585 to 42319. [2024-10-24 01:40:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42319 states, 42318 states have (on average 1.2073822014272886) internal successors, (51094), 42318 states have internal predecessors, (51094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42319 states to 42319 states and 51094 transitions. [2024-10-24 01:40:38,415 INFO L78 Accepts]: Start accepts. Automaton has 42319 states and 51094 transitions. Word has length 94 [2024-10-24 01:40:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:38,415 INFO L471 AbstractCegarLoop]: Abstraction has 42319 states and 51094 transitions. [2024-10-24 01:40:38,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.928571428571427) internal successors, (251), 14 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 42319 states and 51094 transitions. [2024-10-24 01:40:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 01:40:38,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:38,425 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] [2024-10-24 01:40:38,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 01:40:38,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:38,631 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)] === [2024-10-24 01:40:38,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:38,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1453161940, now seen corresponding path program 1 times [2024-10-24 01:40:38,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:38,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882792240] [2024-10-24 01:40:38,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:38,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 01:40:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:38,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882792240] [2024-10-24 01:40:38,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882792240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:38,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:38,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633414220] [2024-10-24 01:40:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:38,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:38,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:38,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:38,791 INFO L87 Difference]: Start difference. First operand 42319 states and 51094 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:38,976 INFO L93 Difference]: Finished difference Result 56883 states and 69214 transitions. [2024-10-24 01:40:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:38,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 [2024-10-24 01:40:38,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:39,033 INFO L225 Difference]: With dead ends: 56883 [2024-10-24 01:40:39,034 INFO L226 Difference]: Without dead ends: 50754 [2024-10-24 01:40:39,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:39,051 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 458 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:39,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 761 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:39,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50754 states. [2024-10-24 01:40:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50754 to 47522. [2024-10-24 01:40:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47522 states, 47521 states have (on average 1.20725573956777) internal successors, (57370), 47521 states have internal predecessors, (57370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47522 states to 47522 states and 57370 transitions. [2024-10-24 01:40:39,624 INFO L78 Accepts]: Start accepts. Automaton has 47522 states and 57370 transitions. Word has length 101 [2024-10-24 01:40:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:39,625 INFO L471 AbstractCegarLoop]: Abstraction has 47522 states and 57370 transitions. [2024-10-24 01:40:39,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:39,625 INFO L276 IsEmpty]: Start isEmpty. Operand 47522 states and 57370 transitions. [2024-10-24 01:40:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 01:40:39,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:39,633 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] [2024-10-24 01:40:39,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 01:40:39,634 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)] === [2024-10-24 01:40:39,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:39,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1956949317, now seen corresponding path program 1 times [2024-10-24 01:40:39,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:39,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848201748] [2024-10-24 01:40:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:39,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:39,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:39,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848201748] [2024-10-24 01:40:39,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848201748] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:39,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799816626] [2024-10-24 01:40:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:39,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:39,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:39,736 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) [2024-10-24 01:40:39,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 01:40:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:39,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 01:40:39,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:40,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:40,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:40,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799816626] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:40,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:40,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-10-24 01:40:40,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701906397] [2024-10-24 01:40:40,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:40,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:40:40,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:40,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:40:40,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:40:40,497 INFO L87 Difference]: Start difference. First operand 47522 states and 57370 transitions. Second operand has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:40,969 INFO L93 Difference]: Finished difference Result 96121 states and 115870 transitions. [2024-10-24 01:40:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:40:40,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-10-24 01:40:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:41,028 INFO L225 Difference]: With dead ends: 96121 [2024-10-24 01:40:41,028 INFO L226 Difference]: Without dead ends: 49187 [2024-10-24 01:40:41,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:40:41,060 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1678 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:41,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 952 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:40:41,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49187 states. [2024-10-24 01:40:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49187 to 44360. [2024-10-24 01:40:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44360 states, 44359 states have (on average 1.1822178137469286) internal successors, (52442), 44359 states have internal predecessors, (52442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:41,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44360 states to 44360 states and 52442 transitions. [2024-10-24 01:40:41,709 INFO L78 Accepts]: Start accepts. Automaton has 44360 states and 52442 transitions. Word has length 102 [2024-10-24 01:40:41,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:41,710 INFO L471 AbstractCegarLoop]: Abstraction has 44360 states and 52442 transitions. [2024-10-24 01:40:41,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 44360 states and 52442 transitions. [2024-10-24 01:40:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 01:40:41,716 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:41,716 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] [2024-10-24 01:40:41,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 01:40:41,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:41,917 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)] === [2024-10-24 01:40:41,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2126416383, now seen corresponding path program 1 times [2024-10-24 01:40:41,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:41,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126360716] [2024-10-24 01:40:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:41,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 01:40:42,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:42,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126360716] [2024-10-24 01:40:42,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126360716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:42,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:42,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:40:42,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083177578] [2024-10-24 01:40:42,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:42,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:40:42,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:42,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:40:42,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:40:42,094 INFO L87 Difference]: Start difference. First operand 44360 states and 52442 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) [2024-10-24 01:40:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:42,430 INFO L93 Difference]: Finished difference Result 59344 states and 69602 transitions. [2024-10-24 01:40:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:40:42,430 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 [2024-10-24 01:40:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:42,487 INFO L225 Difference]: With dead ends: 59344 [2024-10-24 01:40:42,487 INFO L226 Difference]: Without dead ends: 49121 [2024-10-24 01:40:42,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:40:42,509 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1107 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:42,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 421 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49121 states. [2024-10-24 01:40:43,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49121 to 44294. [2024-10-24 01:40:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44294 states, 44293 states have (on average 1.1823538708148014) internal successors, (52370), 44293 states have internal predecessors, (52370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44294 states to 44294 states and 52370 transitions. [2024-10-24 01:40:43,146 INFO L78 Accepts]: Start accepts. Automaton has 44294 states and 52370 transitions. Word has length 103 [2024-10-24 01:40:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:43,147 INFO L471 AbstractCegarLoop]: Abstraction has 44294 states and 52370 transitions. [2024-10-24 01:40:43,147 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) [2024-10-24 01:40:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand 44294 states and 52370 transitions. [2024-10-24 01:40:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-24 01:40:43,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:43,151 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] [2024-10-24 01:40:43,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-24 01:40:43,152 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)] === [2024-10-24 01:40:43,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1134192542, now seen corresponding path program 1 times [2024-10-24 01:40:43,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:43,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144903898] [2024-10-24 01:40:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:43,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:43,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144903898] [2024-10-24 01:40:43,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144903898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:43,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:43,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:40:43,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183511091] [2024-10-24 01:40:43,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:43,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:40:43,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:43,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:40:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:43,238 INFO L87 Difference]: Start difference. First operand 44294 states and 52370 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:43,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:43,459 INFO L93 Difference]: Finished difference Result 77430 states and 91247 transitions. [2024-10-24 01:40:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:40:43,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-10-24 01:40:43,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:43,834 INFO L225 Difference]: With dead ends: 77430 [2024-10-24 01:40:43,834 INFO L226 Difference]: Without dead ends: 43697 [2024-10-24 01:40:43,851 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 [2024-10-24 01:40:43,857 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 387 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:43,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 436 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:43,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43697 states. [2024-10-24 01:40:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43697 to 43010. [2024-10-24 01:40:44,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43010 states, 43009 states have (on average 1.1678485898300355) internal successors, (50228), 43009 states have internal predecessors, (50228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43010 states to 43010 states and 50228 transitions. [2024-10-24 01:40:44,218 INFO L78 Accepts]: Start accepts. Automaton has 43010 states and 50228 transitions. Word has length 104 [2024-10-24 01:40:44,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:44,218 INFO L471 AbstractCegarLoop]: Abstraction has 43010 states and 50228 transitions. [2024-10-24 01:40:44,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 43010 states and 50228 transitions. [2024-10-24 01:40:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 01:40:44,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:44,223 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] [2024-10-24 01:40:44,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-24 01:40:44,223 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)] === [2024-10-24 01:40:44,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1875081005, now seen corresponding path program 1 times [2024-10-24 01:40:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:44,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600617557] [2024-10-24 01:40:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 01:40:44,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:44,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600617557] [2024-10-24 01:40:44,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600617557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:44,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:44,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:40:44,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266788575] [2024-10-24 01:40:44,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:44,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:40:44,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:40:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:40:44,308 INFO L87 Difference]: Start difference. First operand 43010 states and 50228 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 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) [2024-10-24 01:40:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:44,823 INFO L93 Difference]: Finished difference Result 83511 states and 97607 transitions. [2024-10-24 01:40:44,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:40:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 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 105 [2024-10-24 01:40:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:44,893 INFO L225 Difference]: With dead ends: 83511 [2024-10-24 01:40:44,893 INFO L226 Difference]: Without dead ends: 65132 [2024-10-24 01:40:44,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:40:44,915 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 150 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:44,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 577 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:44,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65132 states. [2024-10-24 01:40:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65132 to 52171. [2024-10-24 01:40:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52171 states, 52170 states have (on average 1.1701935978531723) internal successors, (61049), 52170 states have internal predecessors, (61049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52171 states to 52171 states and 61049 transitions. [2024-10-24 01:40:45,700 INFO L78 Accepts]: Start accepts. Automaton has 52171 states and 61049 transitions. Word has length 105 [2024-10-24 01:40:45,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:45,700 INFO L471 AbstractCegarLoop]: Abstraction has 52171 states and 61049 transitions. [2024-10-24 01:40:45,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 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) [2024-10-24 01:40:45,700 INFO L276 IsEmpty]: Start isEmpty. Operand 52171 states and 61049 transitions. [2024-10-24 01:40:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 01:40:45,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:45,706 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] [2024-10-24 01:40:45,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-24 01:40:45,707 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:45,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:45,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2057767566, now seen corresponding path program 1 times [2024-10-24 01:40:45,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:45,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692887479] [2024-10-24 01:40:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:45,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:46,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:46,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692887479] [2024-10-24 01:40:46,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692887479] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:46,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115402864] [2024-10-24 01:40:46,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:46,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:46,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:46,045 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) [2024-10-24 01:40:46,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 01:40:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:46,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 01:40:46,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:47,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:48,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115402864] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:48,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:48,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 25 [2024-10-24 01:40:48,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660373911] [2024-10-24 01:40:48,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:48,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 01:40:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:48,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 01:40:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:40:48,340 INFO L87 Difference]: Start difference. First operand 52171 states and 61049 transitions. Second operand has 25 states, 25 states have (on average 10.44) internal successors, (261), 25 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:52,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:52,843 INFO L93 Difference]: Finished difference Result 247805 states and 289835 transitions. [2024-10-24 01:40:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-10-24 01:40:52,844 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.44) internal successors, (261), 25 states have internal predecessors, (261), 0 states have call successors, (0), 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 [2024-10-24 01:40:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:53,411 INFO L225 Difference]: With dead ends: 247805 [2024-10-24 01:40:53,412 INFO L226 Difference]: Without dead ends: 205411 [2024-10-24 01:40:53,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2419 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1442, Invalid=6930, Unknown=0, NotChecked=0, Total=8372 [2024-10-24 01:40:53,455 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 3319 mSDsluCounter, 4967 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3319 SdHoareTripleChecker+Valid, 5333 SdHoareTripleChecker+Invalid, 3769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:53,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3319 Valid, 5333 Invalid, 3769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 01:40:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205411 states. [2024-10-24 01:40:54,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205411 to 53246. [2024-10-24 01:40:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53246 states, 53245 states have (on average 1.1696309512630294) internal successors, (62277), 53245 states have internal predecessors, (62277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:54,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53246 states to 53246 states and 62277 transitions. [2024-10-24 01:40:54,772 INFO L78 Accepts]: Start accepts. Automaton has 53246 states and 62277 transitions. Word has length 105 [2024-10-24 01:40:54,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:54,772 INFO L471 AbstractCegarLoop]: Abstraction has 53246 states and 62277 transitions. [2024-10-24 01:40:54,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.44) internal successors, (261), 25 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 53246 states and 62277 transitions. [2024-10-24 01:40:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 01:40:54,779 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:54,779 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] [2024-10-24 01:40:54,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 01:40:54,979 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,SelfDestructingSolverStorable44 [2024-10-24 01:40:54,980 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:54,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1921536393, now seen corresponding path program 1 times [2024-10-24 01:40:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:54,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880035606] [2024-10-24 01:40:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:55,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:55,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880035606] [2024-10-24 01:40:55,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880035606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:40:55,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:40:55,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 01:40:55,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628981642] [2024-10-24 01:40:55,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:40:55,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:40:55,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:40:55,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:40:55,528 INFO L87 Difference]: Start difference. First operand 53246 states and 62277 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:56,369 INFO L93 Difference]: Finished difference Result 68873 states and 80889 transitions. [2024-10-24 01:40:56,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:40:56,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-10-24 01:40:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:56,439 INFO L225 Difference]: With dead ends: 68873 [2024-10-24 01:40:56,439 INFO L226 Difference]: Without dead ends: 59454 [2024-10-24 01:40:56,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2024-10-24 01:40:56,462 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1323 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:40:56,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 2156 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:40:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59454 states. [2024-10-24 01:40:57,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59454 to 58532. [2024-10-24 01:40:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58532 states, 58531 states have (on average 1.1713280142146896) internal successors, (68559), 58531 states have internal predecessors, (68559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58532 states to 58532 states and 68559 transitions. [2024-10-24 01:40:57,177 INFO L78 Accepts]: Start accepts. Automaton has 58532 states and 68559 transitions. Word has length 106 [2024-10-24 01:40:57,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:40:57,177 INFO L471 AbstractCegarLoop]: Abstraction has 58532 states and 68559 transitions. [2024-10-24 01:40:57,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:40:57,177 INFO L276 IsEmpty]: Start isEmpty. Operand 58532 states and 68559 transitions. [2024-10-24 01:40:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 01:40:57,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:40:57,184 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] [2024-10-24 01:40:57,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-24 01:40:57,185 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-24 01:40:57,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:40:57,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1733406164, now seen corresponding path program 1 times [2024-10-24 01:40:57,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:40:57,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807722109] [2024-10-24 01:40:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:40:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:58,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:40:58,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807722109] [2024-10-24 01:40:58,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807722109] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 01:40:58,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656905530] [2024-10-24 01:40:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:40:58,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 01:40:58,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:40:58,038 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) [2024-10-24 01:40:58,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 01:40:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:40:58,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 01:40:58,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 01:40:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:58,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 01:40:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:40:59,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656905530] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 01:40:59,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 01:40:59,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 10] total 33 [2024-10-24 01:40:59,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284103123] [2024-10-24 01:40:59,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 01:40:59,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-24 01:40:59,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:40:59,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-24 01:40:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=968, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 01:40:59,445 INFO L87 Difference]: Start difference. First operand 58532 states and 68559 transitions. Second operand has 33 states, 33 states have (on average 9.151515151515152) internal successors, (302), 33 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)