./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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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.ufo.UNBOUNDED.pals.c.v+sep-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 52ea16d32fee186339e754b295bffdbf40567dcb9eb1871e1f81ccc6c9f03c9b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:21:06,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:21:06,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:21:06,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:21:06,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:21:06,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:21:06,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:21:06,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:21:06,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:21:06,522 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:21:06,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:21:06,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:21:06,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:21:06,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:21:06,526 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:21:06,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:21:06,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:21:06,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:21:06,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:21:06,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:21:06,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:21:06,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:21:06,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:21:06,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:21:06,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:21:06,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:21:06,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:21:06,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:21:06,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:21:06,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:21:06,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:21:06,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:21:06,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:21:06,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:21:06,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:21:06,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:21:06,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:21:06,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:21:06,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:21:06,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:21:06,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:21:06,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:21:06,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ea16d32fee186339e754b295bffdbf40567dcb9eb1871e1f81ccc6c9f03c9b [2024-10-12 20:21:06,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:21:06,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:21:06,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:21:06,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:21:06,810 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:21:06,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-10-12 20:21:08,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:21:08,645 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:21:08,646 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-10-12 20:21:08,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd3d93dc/2f5d5fe2267741d4bcb968acdb5c90f8/FLAG534d1bb3b [2024-10-12 20:21:08,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd3d93dc/2f5d5fe2267741d4bcb968acdb5c90f8 [2024-10-12 20:21:08,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:21:08,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:21:08,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:21:08,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:21:08,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:21:08,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:21:08" (1/1) ... [2024-10-12 20:21:08,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc3ccc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:08, skipping insertion in model container [2024-10-12 20:21:08,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:21:08" (1/1) ... [2024-10-12 20:21:08,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:21:09,252 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7184,7197] [2024-10-12 20:21:09,305 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11285,11298] [2024-10-12 20:21:09,350 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18315,18328] [2024-10-12 20:21:09,380 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24747,24760] [2024-10-12 20:21:09,448 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43722,43735] [2024-10-12 20:21:09,548 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71504,71517] [2024-10-12 20:21:09,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:21:09,724 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:21:09,766 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7184,7197] [2024-10-12 20:21:09,781 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11285,11298] [2024-10-12 20:21:09,796 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18315,18328] [2024-10-12 20:21:09,808 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24747,24760] [2024-10-12 20:21:09,846 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43722,43735] [2024-10-12 20:21:09,898 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.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71504,71517] [2024-10-12 20:21:09,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:21:10,000 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:21:10,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10 WrapperNode [2024-10-12 20:21:10,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:21:10,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:21:10,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:21:10,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:21:10,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,173 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6039 [2024-10-12 20:21:10,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:21:10,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:21:10,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:21:10,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:21:10,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,278 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]. [2024-10-12 20:21:10,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:21:10,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:21:10,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:21:10,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:21:10,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (1/1) ... [2024-10-12 20:21:10,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:21:10,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:21:10,532 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) [2024-10-12 20:21:10,535 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 [2024-10-12 20:21:10,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:21:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:21:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:21:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:21:10,858 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:21:10,859 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:21:13,604 INFO L? ?]: Removed 1041 outVars from TransFormulas that were not future-live. [2024-10-12 20:21:13,604 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:21:13,667 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:21:13,668 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:21:13,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:21:13 BoogieIcfgContainer [2024-10-12 20:21:13,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:21:13,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:21:13,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:21:13,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:21:13,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:21:08" (1/3) ... [2024-10-12 20:21:13,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e70475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:21:13, skipping insertion in model container [2024-10-12 20:21:13,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:21:10" (2/3) ... [2024-10-12 20:21:13,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e70475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:21:13, skipping insertion in model container [2024-10-12 20:21:13,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:21:13" (3/3) ... [2024-10-12 20:21:13,678 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-10-12 20:21:13,693 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:21:13,694 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-12 20:21:13,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:21:13,803 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;@77870ef7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:21:13,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-12 20:21:13,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 1252 states, 1245 states have (on average 1.8056224899598394) internal successors, (2248), 1251 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-12 20:21:13,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:13,838 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] [2024-10-12 20:21:13,838 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:13,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash 966667412, now seen corresponding path program 1 times [2024-10-12 20:21:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:13,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727345423] [2024-10-12 20:21:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:13,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:14,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:14,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727345423] [2024-10-12 20:21:14,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727345423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:14,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:14,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:14,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865004128] [2024-10-12 20:21:14,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:14,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:14,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:14,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:14,400 INFO L87 Difference]: Start difference. First operand has 1252 states, 1245 states have (on average 1.8056224899598394) internal successors, (2248), 1251 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 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) [2024-10-12 20:21:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:15,986 INFO L93 Difference]: Finished difference Result 2462 states and 4318 transitions. [2024-10-12 20:21:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:15,988 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 [2024-10-12 20:21:15,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:16,018 INFO L225 Difference]: With dead ends: 2462 [2024-10-12 20:21:16,019 INFO L226 Difference]: Without dead ends: 1549 [2024-10-12 20:21:16,026 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 [2024-10-12 20:21:16,029 INFO L432 NwaCegarLoop]: 1005 mSDtfsCounter, 7054 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7054 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:16,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7054 Valid, 1477 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 20:21:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-10-12 20:21:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1543. [2024-10-12 20:21:16,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1537 states have (on average 1.3565387117761873) internal successors, (2085), 1542 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) [2024-10-12 20:21:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2085 transitions. [2024-10-12 20:21:16,149 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2085 transitions. Word has length 50 [2024-10-12 20:21:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:16,149 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2085 transitions. [2024-10-12 20:21:16,149 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) [2024-10-12 20:21:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2085 transitions. [2024-10-12 20:21:16,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-12 20:21:16,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:16,153 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] [2024-10-12 20:21:16,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:21:16,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:16,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:16,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1129412729, now seen corresponding path program 1 times [2024-10-12 20:21:16,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:16,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498908484] [2024-10-12 20:21:16,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:16,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:16,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498908484] [2024-10-12 20:21:16,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498908484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:16,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:16,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:16,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540221598] [2024-10-12 20:21:16,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:16,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:16,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:16,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:16,367 INFO L87 Difference]: Start difference. First operand 1543 states and 2085 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:17,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:17,429 INFO L93 Difference]: Finished difference Result 3168 states and 4337 transitions. [2024-10-12 20:21:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:17,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-10-12 20:21:17,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:17,438 INFO L225 Difference]: With dead ends: 3168 [2024-10-12 20:21:17,438 INFO L226 Difference]: Without dead ends: 2188 [2024-10-12 20:21:17,440 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 [2024-10-12 20:21:17,441 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 5058 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:17,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 1028 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 20:21:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2024-10-12 20:21:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2176. [2024-10-12 20:21:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2170 states have (on average 1.3755760368663594) internal successors, (2985), 2175 states have internal predecessors, (2985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 2985 transitions. [2024-10-12 20:21:17,505 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 2985 transitions. Word has length 51 [2024-10-12 20:21:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:17,505 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 2985 transitions. [2024-10-12 20:21:17,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 2985 transitions. [2024-10-12 20:21:17,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-12 20:21:17,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:17,509 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] [2024-10-12 20:21:17,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:21:17,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:17,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:17,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1240611768, now seen corresponding path program 1 times [2024-10-12 20:21:17,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:17,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239491383] [2024-10-12 20:21:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:17,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:17,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:17,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:17,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239491383] [2024-10-12 20:21:17,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239491383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:17,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:17,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:21:17,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041807828] [2024-10-12 20:21:17,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:17,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:17,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:17,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:17,657 INFO L87 Difference]: Start difference. First operand 2176 states and 2985 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:18,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:18,568 INFO L93 Difference]: Finished difference Result 4519 states and 6279 transitions. [2024-10-12 20:21:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:18,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-10-12 20:21:18,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:18,579 INFO L225 Difference]: With dead ends: 4519 [2024-10-12 20:21:18,579 INFO L226 Difference]: Without dead ends: 3044 [2024-10-12 20:21:18,582 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 [2024-10-12 20:21:18,583 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 4477 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:18,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 882 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 20:21:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2024-10-12 20:21:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 3034. [2024-10-12 20:21:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3768163804491413) internal successors, (4169), 3033 states have internal predecessors, (4169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4169 transitions. [2024-10-12 20:21:18,647 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4169 transitions. Word has length 51 [2024-10-12 20:21:18,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:18,647 INFO L471 AbstractCegarLoop]: Abstraction has 3034 states and 4169 transitions. [2024-10-12 20:21:18,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:18,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4169 transitions. [2024-10-12 20:21:18,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-12 20:21:18,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:18,651 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] [2024-10-12 20:21:18,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:21:18,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:18,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:18,652 INFO L85 PathProgramCache]: Analyzing trace with hash -40243798, now seen corresponding path program 1 times [2024-10-12 20:21:18,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:18,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462134402] [2024-10-12 20:21:18,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:18,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:19,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:19,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462134402] [2024-10-12 20:21:19,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462134402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:19,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:19,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:21:19,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072753710] [2024-10-12 20:21:19,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:19,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:21:19,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:19,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:21:19,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:19,089 INFO L87 Difference]: Start difference. First operand 3034 states and 4169 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2024-10-12 20:21:21,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:21,432 INFO L93 Difference]: Finished difference Result 5326 states and 7445 transitions. [2024-10-12 20:21:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:21:21,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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 [2024-10-12 20:21:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:21,452 INFO L225 Difference]: With dead ends: 5326 [2024-10-12 20:21:21,452 INFO L226 Difference]: Without dead ends: 4769 [2024-10-12 20:21:21,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:21:21,458 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 3745 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3745 SdHoareTripleChecker+Valid, 3594 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:21,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3745 Valid, 3594 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-12 20:21:21,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2024-10-12 20:21:21,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 3034. [2024-10-12 20:21:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3764861294583883) internal successors, (4168), 3033 states have internal predecessors, (4168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4168 transitions. [2024-10-12 20:21:21,540 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4168 transitions. Word has length 52 [2024-10-12 20:21:21,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:21,541 INFO L471 AbstractCegarLoop]: Abstraction has 3034 states and 4168 transitions. [2024-10-12 20:21:21,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2024-10-12 20:21:21,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4168 transitions. [2024-10-12 20:21:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-12 20:21:21,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:21,545 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] [2024-10-12 20:21:21,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:21:21,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:21,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash -185533245, now seen corresponding path program 1 times [2024-10-12 20:21:21,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:21,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269168611] [2024-10-12 20:21:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:21,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:21,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269168611] [2024-10-12 20:21:21,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269168611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:21,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:21,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:21:21,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456384490] [2024-10-12 20:21:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:21,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:21:21,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:21,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:21:21,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:21,900 INFO L87 Difference]: Start difference. First operand 3034 states and 4168 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2024-10-12 20:21:23,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:23,308 INFO L93 Difference]: Finished difference Result 3782 states and 5165 transitions. [2024-10-12 20:21:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:21:23,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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 [2024-10-12 20:21:23,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:23,320 INFO L225 Difference]: With dead ends: 3782 [2024-10-12 20:21:23,320 INFO L226 Difference]: Without dead ends: 3777 [2024-10-12 20:21:23,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:21:23,323 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 4545 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:23,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 2677 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 20:21:23,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2024-10-12 20:21:23,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3034. [2024-10-12 20:21:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3761558784676353) internal successors, (4167), 3033 states have internal predecessors, (4167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4167 transitions. [2024-10-12 20:21:23,387 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4167 transitions. Word has length 52 [2024-10-12 20:21:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:23,389 INFO L471 AbstractCegarLoop]: Abstraction has 3034 states and 4167 transitions. [2024-10-12 20:21:23,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2024-10-12 20:21:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4167 transitions. [2024-10-12 20:21:23,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-12 20:21:23,393 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:23,393 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] [2024-10-12 20:21:23,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:21:23,393 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:23,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:23,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1651109861, now seen corresponding path program 1 times [2024-10-12 20:21:23,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:23,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269807337] [2024-10-12 20:21:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:23,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:23,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:23,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269807337] [2024-10-12 20:21:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269807337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:23,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:23,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:23,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359032542] [2024-10-12 20:21:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:23,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:21:23,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:21:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:21:23,751 INFO L87 Difference]: Start difference. First operand 3034 states and 4167 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) [2024-10-12 20:21:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:25,016 INFO L93 Difference]: Finished difference Result 4346 states and 6070 transitions. [2024-10-12 20:21:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:21:25,016 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 [2024-10-12 20:21:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:25,026 INFO L225 Difference]: With dead ends: 4346 [2024-10-12 20:21:25,027 INFO L226 Difference]: Without dead ends: 3675 [2024-10-12 20:21:25,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:25,029 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 3423 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:25,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 2869 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 20:21:25,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3675 states. [2024-10-12 20:21:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3675 to 3034. [2024-10-12 20:21:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3758256274768825) internal successors, (4166), 3033 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:25,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4166 transitions. [2024-10-12 20:21:25,083 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4166 transitions. Word has length 52 [2024-10-12 20:21:25,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:25,084 INFO L471 AbstractCegarLoop]: Abstraction has 3034 states and 4166 transitions. [2024-10-12 20:21:25,084 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) [2024-10-12 20:21:25,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4166 transitions. [2024-10-12 20:21:25,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-12 20:21:25,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:25,087 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] [2024-10-12 20:21:25,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:21:25,087 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:25,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:25,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1538413769, now seen corresponding path program 1 times [2024-10-12 20:21:25,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:25,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530531566] [2024-10-12 20:21:25,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:25,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:25,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:25,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530531566] [2024-10-12 20:21:25,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530531566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:25,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:25,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:25,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692580874] [2024-10-12 20:21:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:25,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:25,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:25,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:25,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:25,156 INFO L87 Difference]: Start difference. First operand 3034 states and 4166 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-10-12 20:21:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:25,224 INFO L93 Difference]: Finished difference Result 3990 states and 5631 transitions. [2024-10-12 20:21:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-10-12 20:21:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:25,232 INFO L225 Difference]: With dead ends: 3990 [2024-10-12 20:21:25,232 INFO L226 Difference]: Without dead ends: 3087 [2024-10-12 20:21:25,233 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 [2024-10-12 20:21:25,234 INFO L432 NwaCegarLoop]: 1184 mSDtfsCounter, 579 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:25,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1783 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2024-10-12 20:21:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3085. [2024-10-12 20:21:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 3079 states have (on average 1.3842156544332576) internal successors, (4262), 3084 states have internal predecessors, (4262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4262 transitions. [2024-10-12 20:21:25,279 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4262 transitions. Word has length 53 [2024-10-12 20:21:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:25,279 INFO L471 AbstractCegarLoop]: Abstraction has 3085 states and 4262 transitions. [2024-10-12 20:21:25,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-10-12 20:21:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4262 transitions. [2024-10-12 20:21:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-12 20:21:25,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:25,282 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] [2024-10-12 20:21:25,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:21:25,283 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:25,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash -651733059, now seen corresponding path program 1 times [2024-10-12 20:21:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:25,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964847513] [2024-10-12 20:21:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:25,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:25,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964847513] [2024-10-12 20:21:25,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964847513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:25,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:25,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:25,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107931674] [2024-10-12 20:21:25,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:25,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:25,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:25,369 INFO L87 Difference]: Start difference. First operand 3085 states and 4262 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-10-12 20:21:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:25,429 INFO L93 Difference]: Finished difference Result 4726 states and 6796 transitions. [2024-10-12 20:21:25,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:25,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-10-12 20:21:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:25,439 INFO L225 Difference]: With dead ends: 4726 [2024-10-12 20:21:25,440 INFO L226 Difference]: Without dead ends: 3507 [2024-10-12 20:21:25,442 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 [2024-10-12 20:21:25,442 INFO L432 NwaCegarLoop]: 1141 mSDtfsCounter, 577 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:25,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1734 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:25,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2024-10-12 20:21:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3505. [2024-10-12 20:21:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 3499 states have (on average 1.4118319519862819) internal successors, (4940), 3504 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:25,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 4940 transitions. [2024-10-12 20:21:25,503 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 4940 transitions. Word has length 53 [2024-10-12 20:21:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:25,503 INFO L471 AbstractCegarLoop]: Abstraction has 3505 states and 4940 transitions. [2024-10-12 20:21:25,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-10-12 20:21:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 4940 transitions. [2024-10-12 20:21:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-12 20:21:25,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:25,506 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] [2024-10-12 20:21:25,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:21:25,507 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:25,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash 408369717, now seen corresponding path program 1 times [2024-10-12 20:21:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:25,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192113746] [2024-10-12 20:21:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:25,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192113746] [2024-10-12 20:21:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192113746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:25,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:25,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:25,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426243563] [2024-10-12 20:21:25,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:25,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:25,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:25,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:25,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:25,566 INFO L87 Difference]: Start difference. First operand 3505 states and 4940 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-10-12 20:21:25,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:25,684 INFO L93 Difference]: Finished difference Result 7604 states and 10991 transitions. [2024-10-12 20:21:25,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:25,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-10-12 20:21:25,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:25,694 INFO L225 Difference]: With dead ends: 7604 [2024-10-12 20:21:25,694 INFO L226 Difference]: Without dead ends: 5152 [2024-10-12 20:21:25,698 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 [2024-10-12 20:21:25,699 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 649 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:25,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1959 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2024-10-12 20:21:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5146. [2024-10-12 20:21:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 5140 states have (on average 1.4134241245136188) internal successors, (7265), 5145 states have internal predecessors, (7265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 7265 transitions. [2024-10-12 20:21:25,770 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 7265 transitions. Word has length 53 [2024-10-12 20:21:25,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:25,770 INFO L471 AbstractCegarLoop]: Abstraction has 5146 states and 7265 transitions. [2024-10-12 20:21:25,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-10-12 20:21:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 7265 transitions. [2024-10-12 20:21:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-12 20:21:25,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:25,773 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] [2024-10-12 20:21:25,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:21:25,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:25,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash 888209781, now seen corresponding path program 1 times [2024-10-12 20:21:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:25,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887009029] [2024-10-12 20:21:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:25,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:25,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887009029] [2024-10-12 20:21:25,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887009029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:25,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:25,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:25,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650634803] [2024-10-12 20:21:25,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:25,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:25,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:25,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:25,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:25,835 INFO L87 Difference]: Start difference. First operand 5146 states and 7265 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) [2024-10-12 20:21:25,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:25,947 INFO L93 Difference]: Finished difference Result 9592 states and 13740 transitions. [2024-10-12 20:21:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:25,948 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 [2024-10-12 20:21:25,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:25,963 INFO L225 Difference]: With dead ends: 9592 [2024-10-12 20:21:25,964 INFO L226 Difference]: Without dead ends: 5407 [2024-10-12 20:21:25,969 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 [2024-10-12 20:21:25,970 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 848 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:25,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1283 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5407 states. [2024-10-12 20:21:26,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 4342. [2024-10-12 20:21:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 4337 states have (on average 1.4251786949504266) internal successors, (6181), 4341 states have internal predecessors, (6181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 6181 transitions. [2024-10-12 20:21:26,037 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 6181 transitions. Word has length 54 [2024-10-12 20:21:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:26,037 INFO L471 AbstractCegarLoop]: Abstraction has 4342 states and 6181 transitions. [2024-10-12 20:21:26,038 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) [2024-10-12 20:21:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 6181 transitions. [2024-10-12 20:21:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-12 20:21:26,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:26,040 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] [2024-10-12 20:21:26,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:21:26,040 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:26,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash -290391896, now seen corresponding path program 1 times [2024-10-12 20:21:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:26,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637016201] [2024-10-12 20:21:26,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:26,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:26,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637016201] [2024-10-12 20:21:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637016201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:26,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:26,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:26,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912385145] [2024-10-12 20:21:26,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:26,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:26,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:26,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:26,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:26,092 INFO L87 Difference]: Start difference. First operand 4342 states and 6181 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) [2024-10-12 20:21:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:26,204 INFO L93 Difference]: Finished difference Result 8335 states and 12072 transitions. [2024-10-12 20:21:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:26,205 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 [2024-10-12 20:21:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:26,212 INFO L225 Difference]: With dead ends: 8335 [2024-10-12 20:21:26,212 INFO L226 Difference]: Without dead ends: 4678 [2024-10-12 20:21:26,215 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 [2024-10-12 20:21:26,216 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 659 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:26,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1014 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:26,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2024-10-12 20:21:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 3774. [2024-10-12 20:21:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 3770 states have (on average 1.4347480106100796) internal successors, (5409), 3773 states have internal predecessors, (5409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 5409 transitions. [2024-10-12 20:21:26,320 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 5409 transitions. Word has length 54 [2024-10-12 20:21:26,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:26,321 INFO L471 AbstractCegarLoop]: Abstraction has 3774 states and 5409 transitions. [2024-10-12 20:21:26,321 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) [2024-10-12 20:21:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 5409 transitions. [2024-10-12 20:21:26,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-12 20:21:26,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:26,323 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] [2024-10-12 20:21:26,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:21:26,323 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:26,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash -364061502, now seen corresponding path program 1 times [2024-10-12 20:21:26,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:26,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604684855] [2024-10-12 20:21:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:26,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:26,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604684855] [2024-10-12 20:21:26,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604684855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:26,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:26,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:26,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377830105] [2024-10-12 20:21:26,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:26,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:26,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:26,371 INFO L87 Difference]: Start difference. First operand 3774 states and 5409 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) [2024-10-12 20:21:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:26,489 INFO L93 Difference]: Finished difference Result 7568 states and 11011 transitions. [2024-10-12 20:21:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:26,490 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 [2024-10-12 20:21:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:26,496 INFO L225 Difference]: With dead ends: 7568 [2024-10-12 20:21:26,497 INFO L226 Difference]: Without dead ends: 4108 [2024-10-12 20:21:26,500 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 [2024-10-12 20:21:26,501 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 552 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:26,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 915 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:26,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2024-10-12 20:21:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3303. [2024-10-12 20:21:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3299 states have (on average 1.4483176720218247) internal successors, (4778), 3302 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4778 transitions. [2024-10-12 20:21:26,545 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4778 transitions. Word has length 54 [2024-10-12 20:21:26,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:26,545 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 4778 transitions. [2024-10-12 20:21:26,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:26,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4778 transitions. [2024-10-12 20:21:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-12 20:21:26,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:26,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:26,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:21:26,548 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:26,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1325150352, now seen corresponding path program 1 times [2024-10-12 20:21:26,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:26,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534099123] [2024-10-12 20:21:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:26,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:27,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:27,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534099123] [2024-10-12 20:21:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534099123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:27,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:27,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:21:27,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847031199] [2024-10-12 20:21:27,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:27,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:21:27,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:21:27,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:27,119 INFO L87 Difference]: Start difference. First operand 3303 states and 4778 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:28,005 INFO L93 Difference]: Finished difference Result 6502 states and 9446 transitions. [2024-10-12 20:21:28,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:21:28,005 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-12 20:21:28,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:28,018 INFO L225 Difference]: With dead ends: 6502 [2024-10-12 20:21:28,018 INFO L226 Difference]: Without dead ends: 6425 [2024-10-12 20:21:28,022 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 [2024-10-12 20:21:28,022 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 3619 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:28,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 3311 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:21:28,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6425 states. [2024-10-12 20:21:28,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6425 to 3275. [2024-10-12 20:21:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3272 states have (on average 1.448960880195599) internal successors, (4741), 3274 states have internal predecessors, (4741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 4741 transitions. [2024-10-12 20:21:28,088 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 4741 transitions. Word has length 55 [2024-10-12 20:21:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:28,089 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 4741 transitions. [2024-10-12 20:21:28,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 4741 transitions. [2024-10-12 20:21:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-12 20:21:28,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:28,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:28,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:21:28,091 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:28,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash -548611186, now seen corresponding path program 1 times [2024-10-12 20:21:28,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:28,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340991696] [2024-10-12 20:21:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:28,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340991696] [2024-10-12 20:21:28,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340991696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:28,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:28,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 20:21:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911218256] [2024-10-12 20:21:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:28,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 20:21:28,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 20:21:28,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:21:28,719 INFO L87 Difference]: Start difference. First operand 3275 states and 4741 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:29,722 INFO L93 Difference]: Finished difference Result 9137 states and 13390 transitions. [2024-10-12 20:21:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 20:21:29,723 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-12 20:21:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:29,740 INFO L225 Difference]: With dead ends: 9137 [2024-10-12 20:21:29,740 INFO L226 Difference]: Without dead ends: 9133 [2024-10-12 20:21:29,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2024-10-12 20:21:29,746 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 3982 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3982 SdHoareTripleChecker+Valid, 4105 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:29,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3982 Valid, 4105 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:21:29,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9133 states. [2024-10-12 20:21:29,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9133 to 3271. [2024-10-12 20:21:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 3269 states have (on average 1.4490669929642093) internal successors, (4737), 3270 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4737 transitions. [2024-10-12 20:21:29,817 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4737 transitions. Word has length 55 [2024-10-12 20:21:29,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:29,817 INFO L471 AbstractCegarLoop]: Abstraction has 3271 states and 4737 transitions. [2024-10-12 20:21:29,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:29,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4737 transitions. [2024-10-12 20:21:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-12 20:21:29,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:29,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:29,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:21:29,819 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:29,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:29,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1104256696, now seen corresponding path program 1 times [2024-10-12 20:21:29,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:29,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049909136] [2024-10-12 20:21:29,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:29,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:30,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:30,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049909136] [2024-10-12 20:21:30,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049909136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:30,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:30,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-12 20:21:30,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984175674] [2024-10-12 20:21:30,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:30,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-12 20:21:30,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:30,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-12 20:21:30,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-10-12 20:21:30,721 INFO L87 Difference]: Start difference. First operand 3271 states and 4737 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:32,573 INFO L93 Difference]: Finished difference Result 6069 states and 8804 transitions. [2024-10-12 20:21:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 20:21:32,574 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-12 20:21:32,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:32,584 INFO L225 Difference]: With dead ends: 6069 [2024-10-12 20:21:32,584 INFO L226 Difference]: Without dead ends: 6063 [2024-10-12 20:21:32,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2024-10-12 20:21:32,587 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 4521 mSDsluCounter, 6143 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4521 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:32,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4521 Valid, 6692 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 20:21:32,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6063 states. [2024-10-12 20:21:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6063 to 3271. [2024-10-12 20:21:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 3269 states have (on average 1.4487610890180482) internal successors, (4736), 3270 states have internal predecessors, (4736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4736 transitions. [2024-10-12 20:21:32,639 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4736 transitions. Word has length 55 [2024-10-12 20:21:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:32,640 INFO L471 AbstractCegarLoop]: Abstraction has 3271 states and 4736 transitions. [2024-10-12 20:21:32,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4736 transitions. [2024-10-12 20:21:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-12 20:21:32,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:32,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:32,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:21:32,642 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:32,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1059586101, now seen corresponding path program 1 times [2024-10-12 20:21:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:32,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750411517] [2024-10-12 20:21:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:33,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:33,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750411517] [2024-10-12 20:21:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750411517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:33,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:33,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:21:33,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880388016] [2024-10-12 20:21:33,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:33,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:21:33,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:33,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:21:33,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:21:33,173 INFO L87 Difference]: Start difference. First operand 3271 states and 4736 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:34,089 INFO L93 Difference]: Finished difference Result 6470 states and 9403 transitions. [2024-10-12 20:21:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:21:34,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-10-12 20:21:34,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:34,098 INFO L225 Difference]: With dead ends: 6470 [2024-10-12 20:21:34,099 INFO L226 Difference]: Without dead ends: 6409 [2024-10-12 20:21:34,101 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 [2024-10-12 20:21:34,102 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 3155 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:34,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 3118 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:21:34,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6409 states. [2024-10-12 20:21:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6409 to 3259. [2024-10-12 20:21:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 3258 states have (on average 1.4496623695518722) internal successors, (4723), 3258 states have internal predecessors, (4723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 4723 transitions. [2024-10-12 20:21:34,168 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 4723 transitions. Word has length 55 [2024-10-12 20:21:34,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:34,168 INFO L471 AbstractCegarLoop]: Abstraction has 3259 states and 4723 transitions. [2024-10-12 20:21:34,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 4723 transitions. [2024-10-12 20:21:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-12 20:21:34,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:34,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:34,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:21:34,171 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:34,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1814443561, now seen corresponding path program 1 times [2024-10-12 20:21:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:34,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900006382] [2024-10-12 20:21:34,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:34,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:34,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:34,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900006382] [2024-10-12 20:21:34,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900006382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:34,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:34,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:34,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800870512] [2024-10-12 20:21:34,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:34,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:34,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:34,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:34,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:34,330 INFO L87 Difference]: Start difference. First operand 3259 states and 4723 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:34,433 INFO L93 Difference]: Finished difference Result 10215 states and 15115 transitions. [2024-10-12 20:21:34,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:34,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-12 20:21:34,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:34,447 INFO L225 Difference]: With dead ends: 10215 [2024-10-12 20:21:34,447 INFO L226 Difference]: Without dead ends: 7493 [2024-10-12 20:21:34,453 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 [2024-10-12 20:21:34,453 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1620 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:34,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 1101 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2024-10-12 20:21:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 5678. [2024-10-12 20:21:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5678 states, 5677 states have (on average 1.4475955610357583) internal successors, (8218), 5677 states have internal predecessors, (8218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 8218 transitions. [2024-10-12 20:21:34,581 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 8218 transitions. Word has length 62 [2024-10-12 20:21:34,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:34,582 INFO L471 AbstractCegarLoop]: Abstraction has 5678 states and 8218 transitions. [2024-10-12 20:21:34,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 8218 transitions. [2024-10-12 20:21:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-12 20:21:34,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:34,585 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] [2024-10-12 20:21:34,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:21:34,585 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:34,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:34,586 INFO L85 PathProgramCache]: Analyzing trace with hash 97835072, now seen corresponding path program 1 times [2024-10-12 20:21:34,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:34,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687478376] [2024-10-12 20:21:34,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:34,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:34,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:34,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687478376] [2024-10-12 20:21:34,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687478376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:34,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:34,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529675560] [2024-10-12 20:21:34,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:34,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:34,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:34,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:34,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:34,711 INFO L87 Difference]: Start difference. First operand 5678 states and 8218 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:34,805 INFO L93 Difference]: Finished difference Result 8910 states and 12937 transitions. [2024-10-12 20:21:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:34,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-10-12 20:21:34,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:34,812 INFO L225 Difference]: With dead ends: 8910 [2024-10-12 20:21:34,812 INFO L226 Difference]: Without dead ends: 3748 [2024-10-12 20:21:34,816 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 [2024-10-12 20:21:34,817 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 985 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:34,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 855 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:34,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2024-10-12 20:21:34,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3744. [2024-10-12 20:21:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3743 states have (on average 1.4215869623296822) internal successors, (5321), 3743 states have internal predecessors, (5321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5321 transitions. [2024-10-12 20:21:34,863 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5321 transitions. Word has length 63 [2024-10-12 20:21:34,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:34,863 INFO L471 AbstractCegarLoop]: Abstraction has 3744 states and 5321 transitions. [2024-10-12 20:21:34,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5321 transitions. [2024-10-12 20:21:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-12 20:21:34,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:34,866 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] [2024-10-12 20:21:34,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:21:34,866 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:34,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:34,867 INFO L85 PathProgramCache]: Analyzing trace with hash -943856178, now seen corresponding path program 1 times [2024-10-12 20:21:34,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:34,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852692117] [2024-10-12 20:21:34,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:34,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:34,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:34,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852692117] [2024-10-12 20:21:34,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852692117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:34,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:34,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:34,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175508144] [2024-10-12 20:21:34,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:34,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:34,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:34,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:34,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:34,971 INFO L87 Difference]: Start difference. First operand 3744 states and 5321 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2024-10-12 20:21:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:35,044 INFO L93 Difference]: Finished difference Result 9886 states and 14247 transitions. [2024-10-12 20:21:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:35,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2024-10-12 20:21:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:35,056 INFO L225 Difference]: With dead ends: 9886 [2024-10-12 20:21:35,056 INFO L226 Difference]: Without dead ends: 6636 [2024-10-12 20:21:35,061 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 [2024-10-12 20:21:35,062 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 328 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:35,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 824 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:35,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2024-10-12 20:21:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 6218. [2024-10-12 20:21:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6217 states have (on average 1.4270548496059192) internal successors, (8872), 6217 states have internal predecessors, (8872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 8872 transitions. [2024-10-12 20:21:35,144 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 8872 transitions. Word has length 65 [2024-10-12 20:21:35,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:35,144 INFO L471 AbstractCegarLoop]: Abstraction has 6218 states and 8872 transitions. [2024-10-12 20:21:35,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2024-10-12 20:21:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 8872 transitions. [2024-10-12 20:21:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-12 20:21:35,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:35,147 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] [2024-10-12 20:21:35,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:21:35,147 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:35,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:35,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1925895447, now seen corresponding path program 1 times [2024-10-12 20:21:35,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:35,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523658445] [2024-10-12 20:21:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:35,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:35,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523658445] [2024-10-12 20:21:35,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523658445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:35,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:35,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:35,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111692926] [2024-10-12 20:21:35,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:35,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:35,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:35,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:35,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:35,263 INFO L87 Difference]: Start difference. First operand 6218 states and 8872 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2024-10-12 20:21:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:35,349 INFO L93 Difference]: Finished difference Result 17038 states and 24466 transitions. [2024-10-12 20:21:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:35,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2024-10-12 20:21:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:35,369 INFO L225 Difference]: With dead ends: 17038 [2024-10-12 20:21:35,369 INFO L226 Difference]: Without dead ends: 11314 [2024-10-12 20:21:35,380 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 [2024-10-12 20:21:35,381 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 279 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:35,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 853 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:35,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2024-10-12 20:21:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 10480. [2024-10-12 20:21:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10480 states, 10479 states have (on average 1.4237999809142095) internal successors, (14920), 10479 states have internal predecessors, (14920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10480 states to 10480 states and 14920 transitions. [2024-10-12 20:21:35,633 INFO L78 Accepts]: Start accepts. Automaton has 10480 states and 14920 transitions. Word has length 65 [2024-10-12 20:21:35,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:35,633 INFO L471 AbstractCegarLoop]: Abstraction has 10480 states and 14920 transitions. [2024-10-12 20:21:35,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2024-10-12 20:21:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 10480 states and 14920 transitions. [2024-10-12 20:21:35,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-12 20:21:35,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:35,636 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] [2024-10-12 20:21:35,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:21:35,636 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:35,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 721481883, now seen corresponding path program 1 times [2024-10-12 20:21:35,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:35,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427007107] [2024-10-12 20:21:35,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:35,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:35,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427007107] [2024-10-12 20:21:35,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427007107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:35,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:35,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:35,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766017734] [2024-10-12 20:21:35,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:35,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:21:35,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:21:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:21:35,894 INFO L87 Difference]: Start difference. First operand 10480 states and 14920 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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) [2024-10-12 20:21:35,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:35,950 INFO L93 Difference]: Finished difference Result 11370 states and 16105 transitions. [2024-10-12 20:21:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:35,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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 [2024-10-12 20:21:35,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:35,963 INFO L225 Difference]: With dead ends: 11370 [2024-10-12 20:21:35,964 INFO L226 Difference]: Without dead ends: 11368 [2024-10-12 20:21:35,966 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 [2024-10-12 20:21:35,966 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:35,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2593 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:35,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11368 states. [2024-10-12 20:21:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11368 to 11368. [2024-10-12 20:21:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11368 states, 11367 states have (on average 1.3906923550629013) internal successors, (15808), 11367 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11368 states to 11368 states and 15808 transitions. [2024-10-12 20:21:36,086 INFO L78 Accepts]: Start accepts. Automaton has 11368 states and 15808 transitions. Word has length 67 [2024-10-12 20:21:36,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:36,086 INFO L471 AbstractCegarLoop]: Abstraction has 11368 states and 15808 transitions. [2024-10-12 20:21:36,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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) [2024-10-12 20:21:36,086 INFO L276 IsEmpty]: Start isEmpty. Operand 11368 states and 15808 transitions. [2024-10-12 20:21:36,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-12 20:21:36,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:36,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:36,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:21:36,089 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:36,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1011663334, now seen corresponding path program 1 times [2024-10-12 20:21:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:36,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216723594] [2024-10-12 20:21:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:36,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:36,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:36,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216723594] [2024-10-12 20:21:36,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216723594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:36,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:36,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:36,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138874887] [2024-10-12 20:21:36,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:36,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:36,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:36,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:36,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:36,155 INFO L87 Difference]: Start difference. First operand 11368 states and 15808 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:36,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:36,266 INFO L93 Difference]: Finished difference Result 30688 states and 42796 transitions. [2024-10-12 20:21:36,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:36,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-12 20:21:36,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:36,292 INFO L225 Difference]: With dead ends: 30688 [2024-10-12 20:21:36,292 INFO L226 Difference]: Without dead ends: 19802 [2024-10-12 20:21:36,308 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 [2024-10-12 20:21:36,309 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 306 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:36,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 780 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19802 states. [2024-10-12 20:21:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19802 to 19504. [2024-10-12 20:21:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19504 states, 19503 states have (on average 1.3662513459467773) internal successors, (26646), 19503 states have internal predecessors, (26646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19504 states to 19504 states and 26646 transitions. [2024-10-12 20:21:36,609 INFO L78 Accepts]: Start accepts. Automaton has 19504 states and 26646 transitions. Word has length 68 [2024-10-12 20:21:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:36,610 INFO L471 AbstractCegarLoop]: Abstraction has 19504 states and 26646 transitions. [2024-10-12 20:21:36,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 19504 states and 26646 transitions. [2024-10-12 20:21:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-12 20:21:36,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:36,613 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] [2024-10-12 20:21:36,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:21:36,613 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:36,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:36,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1324071959, now seen corresponding path program 1 times [2024-10-12 20:21:36,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:36,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658727663] [2024-10-12 20:21:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:36,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:36,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:36,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:36,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658727663] [2024-10-12 20:21:36,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658727663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:36,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:36,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:36,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735797249] [2024-10-12 20:21:36,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:36,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:36,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:36,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:36,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:36,716 INFO L87 Difference]: Start difference. First operand 19504 states and 26646 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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) [2024-10-12 20:21:36,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:36,869 INFO L93 Difference]: Finished difference Result 34337 states and 47083 transitions. [2024-10-12 20:21:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:36,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 [2024-10-12 20:21:36,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:36,907 INFO L225 Difference]: With dead ends: 34337 [2024-10-12 20:21:36,908 INFO L226 Difference]: Without dead ends: 28083 [2024-10-12 20:21:36,924 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 [2024-10-12 20:21:36,925 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 1038 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:36,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1312 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:36,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28083 states. [2024-10-12 20:21:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28083 to 24457. [2024-10-12 20:21:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24457 states, 24456 states have (on average 1.3614245992803402) internal successors, (33295), 24456 states have internal predecessors, (33295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24457 states to 24457 states and 33295 transitions. [2024-10-12 20:21:37,229 INFO L78 Accepts]: Start accepts. Automaton has 24457 states and 33295 transitions. Word has length 72 [2024-10-12 20:21:37,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:37,229 INFO L471 AbstractCegarLoop]: Abstraction has 24457 states and 33295 transitions. [2024-10-12 20:21:37,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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) [2024-10-12 20:21:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand 24457 states and 33295 transitions. [2024-10-12 20:21:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-12 20:21:37,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:37,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:37,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:21:37,232 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:37,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:37,233 INFO L85 PathProgramCache]: Analyzing trace with hash -443814493, now seen corresponding path program 1 times [2024-10-12 20:21:37,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:37,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910625785] [2024-10-12 20:21:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:37,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:37,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:37,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910625785] [2024-10-12 20:21:37,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910625785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:37,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:37,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:37,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164221539] [2024-10-12 20:21:37,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:37,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:37,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:37,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:37,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:37,416 INFO L87 Difference]: Start difference. First operand 24457 states and 33295 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) [2024-10-12 20:21:37,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:37,576 INFO L93 Difference]: Finished difference Result 37657 states and 51487 transitions. [2024-10-12 20:21:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:37,577 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 [2024-10-12 20:21:37,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:37,622 INFO L225 Difference]: With dead ends: 37657 [2024-10-12 20:21:37,623 INFO L226 Difference]: Without dead ends: 31403 [2024-10-12 20:21:37,642 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 [2024-10-12 20:21:37,646 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 977 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:37,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1360 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31403 states. [2024-10-12 20:21:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31403 to 29409. [2024-10-12 20:21:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29409 states, 29408 states have (on average 1.3582358541893362) internal successors, (39943), 29408 states have internal predecessors, (39943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:37,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29409 states to 29409 states and 39943 transitions. [2024-10-12 20:21:37,979 INFO L78 Accepts]: Start accepts. Automaton has 29409 states and 39943 transitions. Word has length 73 [2024-10-12 20:21:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:37,980 INFO L471 AbstractCegarLoop]: Abstraction has 29409 states and 39943 transitions. [2024-10-12 20:21:37,980 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) [2024-10-12 20:21:37,980 INFO L276 IsEmpty]: Start isEmpty. Operand 29409 states and 39943 transitions. [2024-10-12 20:21:37,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-12 20:21:37,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:37,983 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] [2024-10-12 20:21:37,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:21:37,983 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:37,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:37,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2082299995, now seen corresponding path program 1 times [2024-10-12 20:21:37,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:37,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660317112] [2024-10-12 20:21:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:37,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:38,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:38,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660317112] [2024-10-12 20:21:38,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660317112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:38,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:38,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:38,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992225357] [2024-10-12 20:21:38,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:38,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:38,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:38,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:38,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:38,088 INFO L87 Difference]: Start difference. First operand 29409 states and 39943 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) [2024-10-12 20:21:38,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:38,272 INFO L93 Difference]: Finished difference Result 42673 states and 58119 transitions. [2024-10-12 20:21:38,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:38,273 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 [2024-10-12 20:21:38,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:38,321 INFO L225 Difference]: With dead ends: 42673 [2024-10-12 20:21:38,321 INFO L226 Difference]: Without dead ends: 36379 [2024-10-12 20:21:38,340 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 [2024-10-12 20:21:38,341 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 1056 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:38,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 1294 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36379 states. [2024-10-12 20:21:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36379 to 34385. [2024-10-12 20:21:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34385 states, 34384 states have (on average 1.3549034434620755) internal successors, (46587), 34384 states have internal predecessors, (46587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34385 states to 34385 states and 46587 transitions. [2024-10-12 20:21:39,038 INFO L78 Accepts]: Start accepts. Automaton has 34385 states and 46587 transitions. Word has length 73 [2024-10-12 20:21:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:39,039 INFO L471 AbstractCegarLoop]: Abstraction has 34385 states and 46587 transitions. [2024-10-12 20:21:39,039 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) [2024-10-12 20:21:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 34385 states and 46587 transitions. [2024-10-12 20:21:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:21:39,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:39,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:39,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 20:21:39,046 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:39,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:39,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1153445703, now seen corresponding path program 1 times [2024-10-12 20:21:39,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:39,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681132073] [2024-10-12 20:21:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:39,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681132073] [2024-10-12 20:21:39,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681132073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:39,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:39,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:39,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487687959] [2024-10-12 20:21:39,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:39,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:39,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:39,283 INFO L87 Difference]: Start difference. First operand 34385 states and 46587 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:39,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:39,508 INFO L93 Difference]: Finished difference Result 47307 states and 64226 transitions. [2024-10-12 20:21:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:39,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-12 20:21:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:39,564 INFO L225 Difference]: With dead ends: 47307 [2024-10-12 20:21:39,565 INFO L226 Difference]: Without dead ends: 36101 [2024-10-12 20:21:39,591 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 [2024-10-12 20:21:39,592 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 992 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:39,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1396 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36101 states. [2024-10-12 20:21:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36101 to 34109. [2024-10-12 20:21:40,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34109 states, 34108 states have (on average 1.3523806731558579) internal successors, (46127), 34108 states have internal predecessors, (46127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34109 states to 34109 states and 46127 transitions. [2024-10-12 20:21:40,279 INFO L78 Accepts]: Start accepts. Automaton has 34109 states and 46127 transitions. Word has length 80 [2024-10-12 20:21:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:40,280 INFO L471 AbstractCegarLoop]: Abstraction has 34109 states and 46127 transitions. [2024-10-12 20:21:40,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 34109 states and 46127 transitions. [2024-10-12 20:21:40,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:21:40,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:40,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:40,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 20:21:40,284 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:40,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1585687152, now seen corresponding path program 1 times [2024-10-12 20:21:40,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:40,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986958255] [2024-10-12 20:21:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:40,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:40,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986958255] [2024-10-12 20:21:40,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986958255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:40,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:40,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:40,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438406198] [2024-10-12 20:21:40,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:40,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:40,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:40,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:40,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:40,580 INFO L87 Difference]: Start difference. First operand 34109 states and 46127 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:40,777 INFO L93 Difference]: Finished difference Result 47095 states and 63750 transitions. [2024-10-12 20:21:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:21:40,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-12 20:21:40,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:40,830 INFO L225 Difference]: With dead ends: 47095 [2024-10-12 20:21:40,831 INFO L226 Difference]: Without dead ends: 35825 [2024-10-12 20:21:40,855 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 [2024-10-12 20:21:40,856 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 1091 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:40,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1233 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:21:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35825 states. [2024-10-12 20:21:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35825 to 33833. [2024-10-12 20:21:41,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33833 states, 33832 states have (on average 1.3498167415464648) internal successors, (45667), 33832 states have internal predecessors, (45667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:41,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33833 states to 33833 states and 45667 transitions. [2024-10-12 20:21:41,424 INFO L78 Accepts]: Start accepts. Automaton has 33833 states and 45667 transitions. Word has length 80 [2024-10-12 20:21:41,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:41,424 INFO L471 AbstractCegarLoop]: Abstraction has 33833 states and 45667 transitions. [2024-10-12 20:21:41,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 33833 states and 45667 transitions. [2024-10-12 20:21:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 20:21:41,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:41,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:21:41,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 20:21:41,429 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:41,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:41,430 INFO L85 PathProgramCache]: Analyzing trace with hash -728575796, now seen corresponding path program 1 times [2024-10-12 20:21:41,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:41,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625249646] [2024-10-12 20:21:41,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:41,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:41,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:41,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625249646] [2024-10-12 20:21:41,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625249646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:41,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:41,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:21:41,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173495] [2024-10-12 20:21:41,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:41,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:21:41,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:21:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:21:41,566 INFO L87 Difference]: Start difference. First operand 33833 states and 45667 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:42,161 INFO L93 Difference]: Finished difference Result 41267 states and 55607 transitions. [2024-10-12 20:21:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:21:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-12 20:21:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:42,205 INFO L225 Difference]: With dead ends: 41267 [2024-10-12 20:21:42,205 INFO L226 Difference]: Without dead ends: 40719 [2024-10-12 20:21:42,219 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 [2024-10-12 20:21:42,219 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 2169 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:42,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 623 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:21:42,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40719 states. [2024-10-12 20:21:42,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40719 to 33832. [2024-10-12 20:21:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33832 states, 33831 states have (on average 1.349767964293104) internal successors, (45664), 33831 states have internal predecessors, (45664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33832 states to 33832 states and 45664 transitions. [2024-10-12 20:21:42,811 INFO L78 Accepts]: Start accepts. Automaton has 33832 states and 45664 transitions. Word has length 81 [2024-10-12 20:21:42,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:42,811 INFO L471 AbstractCegarLoop]: Abstraction has 33832 states and 45664 transitions. [2024-10-12 20:21:42,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 33832 states and 45664 transitions. [2024-10-12 20:21:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-12 20:21:42,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:42,821 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] [2024-10-12 20:21:42,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 20:21:42,822 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:42,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1436824204, now seen corresponding path program 1 times [2024-10-12 20:21:42,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:42,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317375507] [2024-10-12 20:21:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 20:21:43,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317375507] [2024-10-12 20:21:43,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317375507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:43,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:43,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:21:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670633490] [2024-10-12 20:21:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:43,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:21:43,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:21:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:43,289 INFO L87 Difference]: Start difference. First operand 33832 states and 45664 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:44,568 INFO L93 Difference]: Finished difference Result 72343 states and 96517 transitions. [2024-10-12 20:21:44,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:21:44,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 87 [2024-10-12 20:21:44,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:44,633 INFO L225 Difference]: With dead ends: 72343 [2024-10-12 20:21:44,633 INFO L226 Difference]: Without dead ends: 56912 [2024-10-12 20:21:44,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:21:44,652 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1814 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:44,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1814 Valid, 1749 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 20:21:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56912 states. [2024-10-12 20:21:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56912 to 33812. [2024-10-12 20:21:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33812 states, 33811 states have (on average 1.3498861317322766) internal successors, (45641), 33811 states have internal predecessors, (45641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33812 states to 33812 states and 45641 transitions. [2024-10-12 20:21:45,104 INFO L78 Accepts]: Start accepts. Automaton has 33812 states and 45641 transitions. Word has length 87 [2024-10-12 20:21:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:45,104 INFO L471 AbstractCegarLoop]: Abstraction has 33812 states and 45641 transitions. [2024-10-12 20:21:45,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:45,105 INFO L276 IsEmpty]: Start isEmpty. Operand 33812 states and 45641 transitions. [2024-10-12 20:21:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-12 20:21:45,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:45,113 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] [2024-10-12 20:21:45,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 20:21:45,113 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:45,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1871965660, now seen corresponding path program 1 times [2024-10-12 20:21:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:45,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340011679] [2024-10-12 20:21:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:45,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:45,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340011679] [2024-10-12 20:21:45,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340011679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:45,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:45,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:21:45,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733178253] [2024-10-12 20:21:45,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:45,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:21:45,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:45,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:21:45,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:45,577 INFO L87 Difference]: Start difference. First operand 33812 states and 45641 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:46,630 INFO L93 Difference]: Finished difference Result 72362 states and 96573 transitions. [2024-10-12 20:21:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:21:46,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-12 20:21:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:46,701 INFO L225 Difference]: With dead ends: 72362 [2024-10-12 20:21:46,701 INFO L226 Difference]: Without dead ends: 56952 [2024-10-12 20:21:46,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:21:46,732 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1779 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:46,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 1717 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:21:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56952 states. [2024-10-12 20:21:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56952 to 34274. [2024-10-12 20:21:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34274 states, 34273 states have (on average 1.3483791906165203) internal successors, (46213), 34273 states have internal predecessors, (46213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:47,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34274 states to 34274 states and 46213 transitions. [2024-10-12 20:21:47,348 INFO L78 Accepts]: Start accepts. Automaton has 34274 states and 46213 transitions. Word has length 88 [2024-10-12 20:21:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:47,348 INFO L471 AbstractCegarLoop]: Abstraction has 34274 states and 46213 transitions. [2024-10-12 20:21:47,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 34274 states and 46213 transitions. [2024-10-12 20:21:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-12 20:21:47,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:47,358 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] [2024-10-12 20:21:47,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 20:21:47,358 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:47,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1525050307, now seen corresponding path program 1 times [2024-10-12 20:21:47,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:47,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936825405] [2024-10-12 20:21:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:47,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 20:21:47,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:47,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936825405] [2024-10-12 20:21:47,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936825405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:47,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:47,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:21:47,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248123840] [2024-10-12 20:21:47,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:47,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:21:47,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:21:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:47,572 INFO L87 Difference]: Start difference. First operand 34274 states and 46213 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:48,396 INFO L93 Difference]: Finished difference Result 66271 states and 89164 transitions. [2024-10-12 20:21:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:21:48,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 88 [2024-10-12 20:21:48,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:48,451 INFO L225 Difference]: With dead ends: 66271 [2024-10-12 20:21:48,451 INFO L226 Difference]: Without dead ends: 50845 [2024-10-12 20:21:48,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:21:48,473 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1241 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:48,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 1246 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:21:48,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50845 states. [2024-10-12 20:21:48,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50845 to 34258. [2024-10-12 20:21:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34258 states, 34257 states have (on average 1.34848352161602) internal successors, (46195), 34257 states have internal predecessors, (46195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34258 states to 34258 states and 46195 transitions. [2024-10-12 20:21:48,977 INFO L78 Accepts]: Start accepts. Automaton has 34258 states and 46195 transitions. Word has length 88 [2024-10-12 20:21:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:48,977 INFO L471 AbstractCegarLoop]: Abstraction has 34258 states and 46195 transitions. [2024-10-12 20:21:48,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 34258 states and 46195 transitions. [2024-10-12 20:21:48,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-12 20:21:48,985 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:48,985 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] [2024-10-12 20:21:48,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 20:21:48,985 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:48,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1638706285, now seen corresponding path program 1 times [2024-10-12 20:21:48,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:48,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763671777] [2024-10-12 20:21:48,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:48,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:49,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:49,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763671777] [2024-10-12 20:21:49,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763671777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:49,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:49,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 20:21:49,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653142351] [2024-10-12 20:21:49,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:49,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 20:21:49,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:49,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 20:21:49,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:21:49,539 INFO L87 Difference]: Start difference. First operand 34258 states and 46195 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:50,600 INFO L93 Difference]: Finished difference Result 76512 states and 102353 transitions. [2024-10-12 20:21:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 20:21:50,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-12 20:21:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:50,673 INFO L225 Difference]: With dead ends: 76512 [2024-10-12 20:21:50,673 INFO L226 Difference]: Without dead ends: 61182 [2024-10-12 20:21:50,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2024-10-12 20:21:50,699 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 2229 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:50,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 1674 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:21:50,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61182 states. [2024-10-12 20:21:51,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61182 to 52689. [2024-10-12 20:21:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52689 states, 52688 states have (on average 1.3418045854843608) internal successors, (70697), 52688 states have internal predecessors, (70697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:51,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52689 states to 52689 states and 70697 transitions. [2024-10-12 20:21:51,481 INFO L78 Accepts]: Start accepts. Automaton has 52689 states and 70697 transitions. Word has length 88 [2024-10-12 20:21:51,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:51,481 INFO L471 AbstractCegarLoop]: Abstraction has 52689 states and 70697 transitions. [2024-10-12 20:21:51,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:51,482 INFO L276 IsEmpty]: Start isEmpty. Operand 52689 states and 70697 transitions. [2024-10-12 20:21:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 20:21:51,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:51,493 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] [2024-10-12 20:21:51,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 20:21:51,493 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:51,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:51,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1887765159, now seen corresponding path program 1 times [2024-10-12 20:21:51,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:51,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95001475] [2024-10-12 20:21:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:51,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:51,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95001475] [2024-10-12 20:21:51,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95001475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:51,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:51,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:21:51,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086629692] [2024-10-12 20:21:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:51,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:21:51,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:21:51,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:21:51,612 INFO L87 Difference]: Start difference. First operand 52689 states and 70697 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) [2024-10-12 20:21:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:51,926 INFO L93 Difference]: Finished difference Result 104293 states and 140111 transitions. [2024-10-12 20:21:51,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:21:51,926 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 89 [2024-10-12 20:21:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:51,990 INFO L225 Difference]: With dead ends: 104293 [2024-10-12 20:21:51,990 INFO L226 Difference]: Without dead ends: 52691 [2024-10-12 20:21:52,029 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 [2024-10-12 20:21:52,030 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 180 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:52,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 883 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:21:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52691 states. [2024-10-12 20:21:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52691 to 52689. [2024-10-12 20:21:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52689 states, 52688 states have (on average 1.3266778013969025) internal successors, (69900), 52688 states have internal predecessors, (69900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52689 states to 52689 states and 69900 transitions. [2024-10-12 20:21:52,808 INFO L78 Accepts]: Start accepts. Automaton has 52689 states and 69900 transitions. Word has length 89 [2024-10-12 20:21:52,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:52,808 INFO L471 AbstractCegarLoop]: Abstraction has 52689 states and 69900 transitions. [2024-10-12 20:21:52,808 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) [2024-10-12 20:21:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 52689 states and 69900 transitions. [2024-10-12 20:21:52,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 20:21:52,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:52,815 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] [2024-10-12 20:21:52,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 20:21:52,815 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:52,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:52,815 INFO L85 PathProgramCache]: Analyzing trace with hash 592654336, now seen corresponding path program 1 times [2024-10-12 20:21:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:52,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868230773] [2024-10-12 20:21:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:52,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:52,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:52,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868230773] [2024-10-12 20:21:52,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868230773] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:21:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791952559] [2024-10-12 20:21:52,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:52,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:21:52,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:21:52,970 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) [2024-10-12 20:21:52,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 20:21:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:53,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 20:21:53,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:21:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:53,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:21:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:53,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791952559] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:21:53,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:21:53,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-12 20:21:53,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147112162] [2024-10-12 20:21:53,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:21:53,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:21:53,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:53,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:21:53,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:53,645 INFO L87 Difference]: Start difference. First operand 52689 states and 69900 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:54,366 INFO L93 Difference]: Finished difference Result 163273 states and 214820 transitions. [2024-10-12 20:21:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:21:54,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-12 20:21:54,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:54,499 INFO L225 Difference]: With dead ends: 163273 [2024-10-12 20:21:54,499 INFO L226 Difference]: Without dead ends: 111671 [2024-10-12 20:21:54,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:54,551 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 1448 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:54,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 2177 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:21:54,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111671 states. [2024-10-12 20:21:55,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111671 to 72953. [2024-10-12 20:21:55,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72953 states, 72952 states have (on average 1.3180721570347627) internal successors, (96156), 72952 states have internal predecessors, (96156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:55,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72953 states to 72953 states and 96156 transitions. [2024-10-12 20:21:55,710 INFO L78 Accepts]: Start accepts. Automaton has 72953 states and 96156 transitions. Word has length 89 [2024-10-12 20:21:55,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:55,711 INFO L471 AbstractCegarLoop]: Abstraction has 72953 states and 96156 transitions. [2024-10-12 20:21:55,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:55,711 INFO L276 IsEmpty]: Start isEmpty. Operand 72953 states and 96156 transitions. [2024-10-12 20:21:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-12 20:21:55,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:55,718 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:21:55,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 20:21:55,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-10-12 20:21:55,919 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:55,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:55,920 INFO L85 PathProgramCache]: Analyzing trace with hash 667642393, now seen corresponding path program 1 times [2024-10-12 20:21:55,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:55,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851298606] [2024-10-12 20:21:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:55,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:56,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:56,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851298606] [2024-10-12 20:21:56,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851298606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:56,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:56,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:56,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891772836] [2024-10-12 20:21:56,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:56,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:56,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:56,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:56,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:56,022 INFO L87 Difference]: Start difference. First operand 72953 states and 96156 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:21:57,397 INFO L93 Difference]: Finished difference Result 212431 states and 280085 transitions. [2024-10-12 20:21:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:21:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 [2024-10-12 20:21:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:21:57,586 INFO L225 Difference]: With dead ends: 212431 [2024-10-12 20:21:57,586 INFO L226 Difference]: Without dead ends: 140475 [2024-10-12 20:21:57,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:21:57,657 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 898 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:21:57,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 815 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:21:57,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140475 states. [2024-10-12 20:21:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140475 to 96126. [2024-10-12 20:21:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96126 states, 96125 states have (on average 1.2870845253576073) internal successors, (123721), 96125 states have internal predecessors, (123721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96126 states to 96126 states and 123721 transitions. [2024-10-12 20:21:59,252 INFO L78 Accepts]: Start accepts. Automaton has 96126 states and 123721 transitions. Word has length 91 [2024-10-12 20:21:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:21:59,253 INFO L471 AbstractCegarLoop]: Abstraction has 96126 states and 123721 transitions. [2024-10-12 20:21:59,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:21:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 96126 states and 123721 transitions. [2024-10-12 20:21:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-12 20:21:59,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:21:59,259 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:21:59,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-12 20:21:59,260 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:21:59,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:21:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash -639194734, now seen corresponding path program 1 times [2024-10-12 20:21:59,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:21:59,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767497900] [2024-10-12 20:21:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:21:59,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:21:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:21:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:21:59,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:21:59,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767497900] [2024-10-12 20:21:59,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767497900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:21:59,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:21:59,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:21:59,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696887813] [2024-10-12 20:21:59,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:21:59,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:21:59,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:21:59,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:21:59,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:21:59,349 INFO L87 Difference]: Start difference. First operand 96126 states and 123721 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 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) [2024-10-12 20:22:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:00,405 INFO L93 Difference]: Finished difference Result 194181 states and 249779 transitions. [2024-10-12 20:22:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:00,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 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 [2024-10-12 20:22:00,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:00,523 INFO L225 Difference]: With dead ends: 194181 [2024-10-12 20:22:00,523 INFO L226 Difference]: Without dead ends: 98856 [2024-10-12 20:22:00,582 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 [2024-10-12 20:22:00,583 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 942 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:00,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 697 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:22:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98856 states. [2024-10-12 20:22:01,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98856 to 86852. [2024-10-12 20:22:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86852 states, 86851 states have (on average 1.258569273813773) internal successors, (109308), 86851 states have internal predecessors, (109308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86852 states to 86852 states and 109308 transitions. [2024-10-12 20:22:01,779 INFO L78 Accepts]: Start accepts. Automaton has 86852 states and 109308 transitions. Word has length 92 [2024-10-12 20:22:01,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:01,779 INFO L471 AbstractCegarLoop]: Abstraction has 86852 states and 109308 transitions. [2024-10-12 20:22:01,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 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) [2024-10-12 20:22:01,779 INFO L276 IsEmpty]: Start isEmpty. Operand 86852 states and 109308 transitions. [2024-10-12 20:22:01,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-12 20:22:01,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:01,784 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:22:01,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-12 20:22:01,785 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:01,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash -42999330, now seen corresponding path program 1 times [2024-10-12 20:22:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:01,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754165214] [2024-10-12 20:22:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:01,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:01,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754165214] [2024-10-12 20:22:01,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754165214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:01,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:01,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:01,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237302133] [2024-10-12 20:22:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:01,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:01,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:01,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:01,855 INFO L87 Difference]: Start difference. First operand 86852 states and 109308 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) [2024-10-12 20:22:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:02,069 INFO L93 Difference]: Finished difference Result 110505 states and 138731 transitions. [2024-10-12 20:22:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:02,070 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 [2024-10-12 20:22:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:02,134 INFO L225 Difference]: With dead ends: 110505 [2024-10-12 20:22:02,134 INFO L226 Difference]: Without dead ends: 63168 [2024-10-12 20:22:02,169 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 [2024-10-12 20:22:02,170 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 162 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:02,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 841 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63168 states. [2024-10-12 20:22:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63168 to 62925. [2024-10-12 20:22:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62925 states, 62924 states have (on average 1.2435477719153265) internal successors, (78249), 62924 states have internal predecessors, (78249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62925 states to 62925 states and 78249 transitions. [2024-10-12 20:22:03,557 INFO L78 Accepts]: Start accepts. Automaton has 62925 states and 78249 transitions. Word has length 92 [2024-10-12 20:22:03,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:03,558 INFO L471 AbstractCegarLoop]: Abstraction has 62925 states and 78249 transitions. [2024-10-12 20:22:03,558 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) [2024-10-12 20:22:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 62925 states and 78249 transitions. [2024-10-12 20:22:03,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-12 20:22:03,564 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:03,565 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:22:03,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-12 20:22:03,565 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:03,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1007814413, now seen corresponding path program 1 times [2024-10-12 20:22:03,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748496443] [2024-10-12 20:22:03,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:03,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:03,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748496443] [2024-10-12 20:22:03,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748496443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:03,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:03,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:03,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904959814] [2024-10-12 20:22:03,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:03,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:03,664 INFO L87 Difference]: Start difference. First operand 62925 states and 78249 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) [2024-10-12 20:22:03,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:03,897 INFO L93 Difference]: Finished difference Result 80533 states and 99762 transitions. [2024-10-12 20:22:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:03,898 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 [2024-10-12 20:22:03,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:03,949 INFO L225 Difference]: With dead ends: 80533 [2024-10-12 20:22:03,949 INFO L226 Difference]: Without dead ends: 42481 [2024-10-12 20:22:03,981 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 [2024-10-12 20:22:03,982 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 169 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:03,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 857 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42481 states. [2024-10-12 20:22:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42481 to 42365. [2024-10-12 20:22:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42365 states, 42364 states have (on average 1.2260409781890285) internal successors, (51940), 42364 states have internal predecessors, (51940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42365 states to 42365 states and 51940 transitions. [2024-10-12 20:22:04,892 INFO L78 Accepts]: Start accepts. Automaton has 42365 states and 51940 transitions. Word has length 92 [2024-10-12 20:22:04,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:04,892 INFO L471 AbstractCegarLoop]: Abstraction has 42365 states and 51940 transitions. [2024-10-12 20:22:04,893 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) [2024-10-12 20:22:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 42365 states and 51940 transitions. [2024-10-12 20:22:04,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 20:22:04,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:04,897 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:22:04,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-12 20:22:04,897 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:04,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:04,898 INFO L85 PathProgramCache]: Analyzing trace with hash 428331928, now seen corresponding path program 1 times [2024-10-12 20:22:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:04,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351343354] [2024-10-12 20:22:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:04,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 20:22:04,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:04,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351343354] [2024-10-12 20:22:04,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351343354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:04,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:04,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408487606] [2024-10-12 20:22:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:04,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:04,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:04,969 INFO L87 Difference]: Start difference. First operand 42365 states and 51940 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:05,123 INFO L93 Difference]: Finished difference Result 59581 states and 72993 transitions. [2024-10-12 20:22:05,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:05,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-12 20:22:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:05,164 INFO L225 Difference]: With dead ends: 59581 [2024-10-12 20:22:05,165 INFO L226 Difference]: Without dead ends: 32298 [2024-10-12 20:22:05,184 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 [2024-10-12 20:22:05,184 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 139 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:05,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 880 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32298 states. [2024-10-12 20:22:05,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32298 to 32234. [2024-10-12 20:22:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32234 states, 32233 states have (on average 1.2149039803927653) internal successors, (39160), 32233 states have internal predecessors, (39160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32234 states to 32234 states and 39160 transitions. [2024-10-12 20:22:05,437 INFO L78 Accepts]: Start accepts. Automaton has 32234 states and 39160 transitions. Word has length 95 [2024-10-12 20:22:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:05,437 INFO L471 AbstractCegarLoop]: Abstraction has 32234 states and 39160 transitions. [2024-10-12 20:22:05,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 32234 states and 39160 transitions. [2024-10-12 20:22:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 20:22:05,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:05,441 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:22:05,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-12 20:22:05,442 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:05,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1745515542, now seen corresponding path program 1 times [2024-10-12 20:22:05,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:05,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052241437] [2024-10-12 20:22:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 20:22:05,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:05,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052241437] [2024-10-12 20:22:05,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052241437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:05,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:05,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:22:05,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715320701] [2024-10-12 20:22:05,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:05,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:22:05,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:05,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:22:05,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:22:05,880 INFO L87 Difference]: Start difference. First operand 32234 states and 39160 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:06,236 INFO L93 Difference]: Finished difference Result 62889 states and 77047 transitions. [2024-10-12 20:22:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:22:06,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-12 20:22:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:06,284 INFO L225 Difference]: With dead ends: 62889 [2024-10-12 20:22:06,284 INFO L226 Difference]: Without dead ends: 49926 [2024-10-12 20:22:06,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:22:06,303 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 357 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:06,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 931 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:06,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49926 states. [2024-10-12 20:22:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49926 to 37892. [2024-10-12 20:22:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37892 states, 37891 states have (on average 1.216832493204191) internal successors, (46107), 37891 states have internal predecessors, (46107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:06,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37892 states to 37892 states and 46107 transitions. [2024-10-12 20:22:06,646 INFO L78 Accepts]: Start accepts. Automaton has 37892 states and 46107 transitions. Word has length 95 [2024-10-12 20:22:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:06,646 INFO L471 AbstractCegarLoop]: Abstraction has 37892 states and 46107 transitions. [2024-10-12 20:22:06,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 37892 states and 46107 transitions. [2024-10-12 20:22:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 20:22:06,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:06,651 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] [2024-10-12 20:22:06,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-12 20:22:06,652 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:06,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:06,652 INFO L85 PathProgramCache]: Analyzing trace with hash 132162037, now seen corresponding path program 1 times [2024-10-12 20:22:06,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:06,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613660685] [2024-10-12 20:22:06,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:06,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:06,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:06,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613660685] [2024-10-12 20:22:06,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613660685] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:22:06,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570710660] [2024-10-12 20:22:06,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:06,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:22:06,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:22:06,748 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) [2024-10-12 20:22:06,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 20:22:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:07,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 20:22:07,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:22:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:07,322 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:22:07,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:07,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570710660] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:22:07,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:22:07,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-10-12 20:22:07,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884054243] [2024-10-12 20:22:07,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:22:07,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 20:22:07,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:07,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 20:22:07,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-10-12 20:22:07,455 INFO L87 Difference]: Start difference. First operand 37892 states and 46107 transitions. Second operand has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 14 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:08,179 INFO L93 Difference]: Finished difference Result 74613 states and 90530 transitions. [2024-10-12 20:22:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:22:08,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 14 states have internal predecessors, (263), 0 states have call successors, (0), 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 96 [2024-10-12 20:22:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:08,219 INFO L225 Difference]: With dead ends: 74613 [2024-10-12 20:22:08,220 INFO L226 Difference]: Without dead ends: 37288 [2024-10-12 20:22:08,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-10-12 20:22:08,243 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 2553 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2553 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:08,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2553 Valid, 1125 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:22:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37288 states. [2024-10-12 20:22:08,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37288 to 36806. [2024-10-12 20:22:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36806 states, 36805 states have (on average 1.1832631435946204) internal successors, (43550), 36805 states have internal predecessors, (43550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36806 states to 36806 states and 43550 transitions. [2024-10-12 20:22:08,556 INFO L78 Accepts]: Start accepts. Automaton has 36806 states and 43550 transitions. Word has length 96 [2024-10-12 20:22:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:08,556 INFO L471 AbstractCegarLoop]: Abstraction has 36806 states and 43550 transitions. [2024-10-12 20:22:08,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.785714285714285) internal successors, (263), 14 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 36806 states and 43550 transitions. [2024-10-12 20:22:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 20:22:08,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:08,561 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] [2024-10-12 20:22:08,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 20:22:08,761 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,SelfDestructingSolverStorable40 [2024-10-12 20:22:08,762 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:08,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1349066365, now seen corresponding path program 1 times [2024-10-12 20:22:08,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:08,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161693840] [2024-10-12 20:22:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:08,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:08,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:08,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161693840] [2024-10-12 20:22:08,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161693840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:08,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:08,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:08,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346125094] [2024-10-12 20:22:08,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:08,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:08,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:08,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:08,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:08,822 INFO L87 Difference]: Start difference. First operand 36806 states and 43550 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:08,988 INFO L93 Difference]: Finished difference Result 69064 states and 82059 transitions. [2024-10-12 20:22:08,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:08,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-10-12 20:22:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:09,045 INFO L225 Difference]: With dead ends: 69064 [2024-10-12 20:22:09,046 INFO L226 Difference]: Without dead ends: 53308 [2024-10-12 20:22:09,068 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 [2024-10-12 20:22:09,068 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 147 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:09,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 958 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:22:09,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53308 states. [2024-10-12 20:22:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53308 to 37872. [2024-10-12 20:22:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37872 states, 37871 states have (on average 1.1752000211243432) internal successors, (44506), 37871 states have internal predecessors, (44506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37872 states to 37872 states and 44506 transitions. [2024-10-12 20:22:09,630 INFO L78 Accepts]: Start accepts. Automaton has 37872 states and 44506 transitions. Word has length 96 [2024-10-12 20:22:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:09,630 INFO L471 AbstractCegarLoop]: Abstraction has 37872 states and 44506 transitions. [2024-10-12 20:22:09,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 37872 states and 44506 transitions. [2024-10-12 20:22:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-12 20:22:09,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:09,637 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] [2024-10-12 20:22:09,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-12 20:22:09,638 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:09,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:09,638 INFO L85 PathProgramCache]: Analyzing trace with hash -523666449, now seen corresponding path program 1 times [2024-10-12 20:22:09,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:09,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710962650] [2024-10-12 20:22:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:09,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-12 20:22:09,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710962650] [2024-10-12 20:22:09,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710962650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:09,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:09,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:22:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400476015] [2024-10-12 20:22:09,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:09,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:22:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:09,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:22:09,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:22:09,927 INFO L87 Difference]: Start difference. First operand 37872 states and 44506 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:10,607 INFO L93 Difference]: Finished difference Result 69875 states and 82434 transitions. [2024-10-12 20:22:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:22:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-10-12 20:22:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:10,683 INFO L225 Difference]: With dead ends: 69875 [2024-10-12 20:22:10,683 INFO L226 Difference]: Without dead ends: 59943 [2024-10-12 20:22:10,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-12 20:22:10,709 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 1770 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:10,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 1154 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:22:10,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59943 states. [2024-10-12 20:22:11,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59943 to 37872. [2024-10-12 20:22:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37872 states, 37871 states have (on average 1.1751472102664309) internal successors, (44504), 37871 states have internal predecessors, (44504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37872 states to 37872 states and 44504 transitions. [2024-10-12 20:22:11,525 INFO L78 Accepts]: Start accepts. Automaton has 37872 states and 44504 transitions. Word has length 98 [2024-10-12 20:22:11,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:11,526 INFO L471 AbstractCegarLoop]: Abstraction has 37872 states and 44504 transitions. [2024-10-12 20:22:11,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 37872 states and 44504 transitions. [2024-10-12 20:22:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-12 20:22:11,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:11,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:22:11,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-12 20:22:11,537 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:11,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1461607553, now seen corresponding path program 1 times [2024-10-12 20:22:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703009412] [2024-10-12 20:22:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:11,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-12 20:22:11,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:11,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703009412] [2024-10-12 20:22:11,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703009412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:11,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:11,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:22:11,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930939980] [2024-10-12 20:22:11,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:11,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:22:11,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:11,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:22:11,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:22:11,805 INFO L87 Difference]: Start difference. First operand 37872 states and 44504 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:12,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:12,641 INFO L93 Difference]: Finished difference Result 58513 states and 68698 transitions. [2024-10-12 20:22:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 20:22:12,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-12 20:22:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:12,703 INFO L225 Difference]: With dead ends: 58513 [2024-10-12 20:22:12,703 INFO L226 Difference]: Without dead ends: 55119 [2024-10-12 20:22:12,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:22:12,722 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1562 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:12,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 1481 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:22:12,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55119 states. [2024-10-12 20:22:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55119 to 37872. [2024-10-12 20:22:13,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37872 states, 37871 states have (on average 1.1751208048374746) internal successors, (44503), 37871 states have internal predecessors, (44503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37872 states to 37872 states and 44503 transitions. [2024-10-12 20:22:13,546 INFO L78 Accepts]: Start accepts. Automaton has 37872 states and 44503 transitions. Word has length 99 [2024-10-12 20:22:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:13,546 INFO L471 AbstractCegarLoop]: Abstraction has 37872 states and 44503 transitions. [2024-10-12 20:22:13,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:13,546 INFO L276 IsEmpty]: Start isEmpty. Operand 37872 states and 44503 transitions. [2024-10-12 20:22:13,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-12 20:22:13,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:13,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:22:13,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-12 20:22:13,560 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-12 20:22:13,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:13,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1115758178, now seen corresponding path program 1 times [2024-10-12 20:22:13,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:13,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196793312] [2024-10-12 20:22:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:13,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196793312] [2024-10-12 20:22:13,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196793312] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:22:13,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717168972] [2024-10-12 20:22:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:13,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:22:13,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:22:13,925 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) [2024-10-12 20:22:13,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 20:22:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:14,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-12 20:22:14,183 INFO L278 TraceCheckSpWp]: Computing forward predicates...