./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB --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 315c7f7d4f861da6991110ab8f251d6e6bbcbe86dfcb4a71343434e33094f4a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:05:25,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:05:25,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:05:25,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:05:25,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:05:25,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:05:25,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:05:25,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:05:25,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:05:25,369 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:05:25,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:05:25,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:05:25,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:05:25,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:05:25,371 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:05:25,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:05:25,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:05:25,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:05:25,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:05:25,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:05:25,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:05:25,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:05:25,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:05:25,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:05:25,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:05:25,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:05:25,374 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:05:25,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:05:25,374 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:05:25,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:25,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:25,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:25,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:25,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:25,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:05:25,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:05:25,376 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 315c7f7d4f861da6991110ab8f251d6e6bbcbe86dfcb4a71343434e33094f4a7 [2024-11-27 20:05:25,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:05:25,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:05:25,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:05:25,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:05:25,776 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:05:25,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2024-11-27 20:05:29,479 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/data/03ab7f102/aeaffcddcffd4875836be8088950eff4/FLAGad4bfbd83 [2024-11-27 20:05:29,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:05:29,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2024-11-27 20:05:29,897 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/data/03ab7f102/aeaffcddcffd4875836be8088950eff4/FLAGad4bfbd83 [2024-11-27 20:05:29,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/data/03ab7f102/aeaffcddcffd4875836be8088950eff4 [2024-11-27 20:05:29,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:05:29,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:05:29,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:29,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:05:29,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:05:29,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:29" (1/1) ... [2024-11-27 20:05:29,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aad393e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:29, skipping insertion in model container [2024-11-27 20:05:29,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:29" (1/1) ... [2024-11-27 20:05:29,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:05:30,451 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c[31111,31124] [2024-11-27 20:05:30,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:30,480 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:05:30,597 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c[31111,31124] [2024-11-27 20:05:30,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:30,619 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:05:30,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30 WrapperNode [2024-11-27 20:05:30,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:30,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:30,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:05:30,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:05:30,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,716 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1014 [2024-11-27 20:05:30,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:30,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:05:30,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:05:30,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:05:30,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,736 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,767 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:05:30,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,803 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:05:30,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:05:30,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:05:30,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:05:30,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (1/1) ... [2024-11-27 20:05:30,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:30,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:30,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:05:30,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2d1e065-eaca-4bb7-af1d-44b7c476a316/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:05:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:05:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:05:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:05:30,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:05:31,164 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:05:31,166 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:05:33,009 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-27 20:05:33,009 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:05:33,042 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:05:33,046 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:05:33,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:33 BoogieIcfgContainer [2024-11-27 20:05:33,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:05:33,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:05:33,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:05:33,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:05:33,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:05:29" (1/3) ... [2024-11-27 20:05:33,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dda196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:33, skipping insertion in model container [2024-11-27 20:05:33,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:30" (2/3) ... [2024-11-27 20:05:33,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dda196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:33, skipping insertion in model container [2024-11-27 20:05:33,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:33" (3/3) ... [2024-11-27 20:05:33,061 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2024-11-27 20:05:33,082 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:05:33,086 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c that has 1 procedures, 300 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:05:33,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:33,226 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;@38d6d2c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:33,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:05:33,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 300 states, 298 states have (on average 1.832214765100671) internal successors, (546), 299 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-27 20:05:33,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:33,256 INFO L218 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] [2024-11-27 20:05:33,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:33,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1955462636, now seen corresponding path program 1 times [2024-11-27 20:05:33,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:33,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361286828] [2024-11-27 20:05:33,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:33,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:33,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:33,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361286828] [2024-11-27 20:05:33,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361286828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:33,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:33,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241356143] [2024-11-27 20:05:33,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:33,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:05:33,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:34,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:05:34,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:34,033 INFO L87 Difference]: Start difference. First operand has 300 states, 298 states have (on average 1.832214765100671) internal successors, (546), 299 states have internal predecessors, (546), 0 states have call successors, (0), 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 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:34,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:34,108 INFO L93 Difference]: Finished difference Result 401 states and 727 transitions. [2024-11-27 20:05:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:05:34,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-27 20:05:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:34,133 INFO L225 Difference]: With dead ends: 401 [2024-11-27 20:05:34,133 INFO L226 Difference]: Without dead ends: 296 [2024-11-27 20:05:34,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:34,146 INFO L435 NwaCegarLoop]: 539 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:34,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:34,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-27 20:05:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-11-27 20:05:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.8271186440677967) internal successors, (539), 295 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 539 transitions. [2024-11-27 20:05:34,242 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 539 transitions. Word has length 77 [2024-11-27 20:05:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:34,245 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 539 transitions. [2024-11-27 20:05:34,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 539 transitions. [2024-11-27 20:05:34,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-27 20:05:34,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:34,252 INFO L218 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] [2024-11-27 20:05:34,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:05:34,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:34,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2089476142, now seen corresponding path program 1 times [2024-11-27 20:05:34,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:34,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416809049] [2024-11-27 20:05:34,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:35,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:35,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416809049] [2024-11-27 20:05:35,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416809049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:35,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:35,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:05:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903103283] [2024-11-27 20:05:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:35,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:35,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:35,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:35,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:35,059 INFO L87 Difference]: Start difference. First operand 296 states and 539 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:35,310 INFO L93 Difference]: Finished difference Result 400 states and 720 transitions. [2024-11-27 20:05:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:35,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-27 20:05:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:35,314 INFO L225 Difference]: With dead ends: 400 [2024-11-27 20:05:35,314 INFO L226 Difference]: Without dead ends: 296 [2024-11-27 20:05:35,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:35,316 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 0 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:35,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2097 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:35,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-27 20:05:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-11-27 20:05:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.6711864406779662) internal successors, (493), 295 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:35,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 493 transitions. [2024-11-27 20:05:35,345 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 493 transitions. Word has length 77 [2024-11-27 20:05:35,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:35,345 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 493 transitions. [2024-11-27 20:05:35,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 493 transitions. [2024-11-27 20:05:35,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:05:35,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:35,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:35,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:05:35,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:35,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1985083144, now seen corresponding path program 1 times [2024-11-27 20:05:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330465968] [2024-11-27 20:05:35,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:35,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:35,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330465968] [2024-11-27 20:05:35,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330465968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:35,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:35,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:35,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648394993] [2024-11-27 20:05:35,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:35,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:35,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:35,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:35,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:35,723 INFO L87 Difference]: Start difference. First operand 296 states and 493 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:35,968 INFO L93 Difference]: Finished difference Result 484 states and 825 transitions. [2024-11-27 20:05:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:35,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-27 20:05:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:35,972 INFO L225 Difference]: With dead ends: 484 [2024-11-27 20:05:35,972 INFO L226 Difference]: Without dead ends: 384 [2024-11-27 20:05:35,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:35,974 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 147 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:35,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 926 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:35,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-27 20:05:35,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2024-11-27 20:05:36,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.68503937007874) internal successors, (642), 381 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 642 transitions. [2024-11-27 20:05:36,004 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 642 transitions. Word has length 122 [2024-11-27 20:05:36,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:36,009 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 642 transitions. [2024-11-27 20:05:36,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 642 transitions. [2024-11-27 20:05:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 20:05:36,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:36,017 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:36,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:05:36,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:36,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:36,019 INFO L85 PathProgramCache]: Analyzing trace with hash -387323276, now seen corresponding path program 1 times [2024-11-27 20:05:36,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:36,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71587421] [2024-11-27 20:05:36,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:36,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:36,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:36,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71587421] [2024-11-27 20:05:36,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71587421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:36,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:36,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:36,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709732469] [2024-11-27 20:05:36,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:36,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:36,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:36,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:36,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:36,390 INFO L87 Difference]: Start difference. First operand 382 states and 642 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:36,455 INFO L93 Difference]: Finished difference Result 734 states and 1258 transitions. [2024-11-27 20:05:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:36,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-27 20:05:36,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:36,463 INFO L225 Difference]: With dead ends: 734 [2024-11-27 20:05:36,463 INFO L226 Difference]: Without dead ends: 548 [2024-11-27 20:05:36,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:36,469 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 148 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:36,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 938 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-27 20:05:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 546. [2024-11-27 20:05:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.7045871559633028) internal successors, (929), 545 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 929 transitions. [2024-11-27 20:05:36,513 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 929 transitions. Word has length 125 [2024-11-27 20:05:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:36,514 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 929 transitions. [2024-11-27 20:05:36,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:36,515 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 929 transitions. [2024-11-27 20:05:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:05:36,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:36,517 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:36,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:05:36,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:36,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash 274346619, now seen corresponding path program 1 times [2024-11-27 20:05:36,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994234438] [2024-11-27 20:05:36,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:36,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994234438] [2024-11-27 20:05:36,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994234438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:36,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:36,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:36,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284798253] [2024-11-27 20:05:36,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:36,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:36,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:36,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:36,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:36,900 INFO L87 Difference]: Start difference. First operand 546 states and 929 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:36,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:36,964 INFO L93 Difference]: Finished difference Result 1206 states and 2083 transitions. [2024-11-27 20:05:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:36,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-27 20:05:36,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:36,972 INFO L225 Difference]: With dead ends: 1206 [2024-11-27 20:05:36,972 INFO L226 Difference]: Without dead ends: 856 [2024-11-27 20:05:36,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:36,977 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 141 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:36,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 939 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-27 20:05:37,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 854. [2024-11-27 20:05:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 1.7174677608440798) internal successors, (1465), 853 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1465 transitions. [2024-11-27 20:05:37,021 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1465 transitions. Word has length 128 [2024-11-27 20:05:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:37,022 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1465 transitions. [2024-11-27 20:05:37,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:37,023 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1465 transitions. [2024-11-27 20:05:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:05:37,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:37,025 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:37,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:05:37,026 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:37,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1678930553, now seen corresponding path program 1 times [2024-11-27 20:05:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884699844] [2024-11-27 20:05:37,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:37,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:37,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:37,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884699844] [2024-11-27 20:05:37,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884699844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:37,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:37,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:37,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815363643] [2024-11-27 20:05:37,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:37,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:37,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:37,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:37,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:37,332 INFO L87 Difference]: Start difference. First operand 854 states and 1465 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:37,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:37,411 INFO L93 Difference]: Finished difference Result 2090 states and 3619 transitions. [2024-11-27 20:05:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:37,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-27 20:05:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:37,424 INFO L225 Difference]: With dead ends: 2090 [2024-11-27 20:05:37,425 INFO L226 Difference]: Without dead ends: 1432 [2024-11-27 20:05:37,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:37,431 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 134 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:37,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 940 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-27 20:05:37,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1430. [2024-11-27 20:05:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 1.722183344996501) internal successors, (2461), 1429 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2461 transitions. [2024-11-27 20:05:37,523 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2461 transitions. Word has length 131 [2024-11-27 20:05:37,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:37,524 INFO L471 AbstractCegarLoop]: Abstraction has 1430 states and 2461 transitions. [2024-11-27 20:05:37,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2461 transitions. [2024-11-27 20:05:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-27 20:05:37,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:37,530 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:37,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:05:37,531 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:37,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:37,534 INFO L85 PathProgramCache]: Analyzing trace with hash -904041234, now seen corresponding path program 1 times [2024-11-27 20:05:37,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:37,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853838660] [2024-11-27 20:05:37,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:37,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:37,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:37,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853838660] [2024-11-27 20:05:37,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853838660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:37,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:37,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:05:37,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685430359] [2024-11-27 20:05:37,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:37,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:05:37,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:37,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:05:37,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:37,971 INFO L87 Difference]: Start difference. First operand 1430 states and 2461 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:38,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:38,560 INFO L93 Difference]: Finished difference Result 7238 states and 12653 transitions. [2024-11-27 20:05:38,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:05:38,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-27 20:05:38,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:38,589 INFO L225 Difference]: With dead ends: 7238 [2024-11-27 20:05:38,590 INFO L226 Difference]: Without dead ends: 6004 [2024-11-27 20:05:38,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:05:38,599 INFO L435 NwaCegarLoop]: 485 mSDtfsCounter, 1397 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:38,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 3839 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:05:38,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2024-11-27 20:05:38,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 2578. [2024-11-27 20:05:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2577 states have (on average 1.7283663174233606) internal successors, (4454), 2577 states have internal predecessors, (4454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 4454 transitions. [2024-11-27 20:05:38,782 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 4454 transitions. Word has length 134 [2024-11-27 20:05:38,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:38,782 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 4454 transitions. [2024-11-27 20:05:38,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:38,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 4454 transitions. [2024-11-27 20:05:38,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-27 20:05:38,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:38,787 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:38,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:05:38,788 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:38,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:38,789 INFO L85 PathProgramCache]: Analyzing trace with hash -55113831, now seen corresponding path program 1 times [2024-11-27 20:05:38,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:38,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005360185] [2024-11-27 20:05:38,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:38,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:39,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:39,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005360185] [2024-11-27 20:05:39,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005360185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:39,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:39,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:39,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833503845] [2024-11-27 20:05:39,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:39,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:39,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:39,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:39,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:39,149 INFO L87 Difference]: Start difference. First operand 2578 states and 4454 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:39,394 INFO L93 Difference]: Finished difference Result 7484 states and 13044 transitions. [2024-11-27 20:05:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-11-27 20:05:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:39,422 INFO L225 Difference]: With dead ends: 7484 [2024-11-27 20:05:39,422 INFO L226 Difference]: Without dead ends: 5102 [2024-11-27 20:05:39,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:39,428 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 510 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:39,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1573 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:39,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2024-11-27 20:05:39,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 3823. [2024-11-27 20:05:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3823 states, 3822 states have (on average 1.7318158032443747) internal successors, (6619), 3822 states have internal predecessors, (6619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:39,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 6619 transitions. [2024-11-27 20:05:39,615 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 6619 transitions. Word has length 135 [2024-11-27 20:05:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:39,616 INFO L471 AbstractCegarLoop]: Abstraction has 3823 states and 6619 transitions. [2024-11-27 20:05:39,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 6619 transitions. [2024-11-27 20:05:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:05:39,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:39,621 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:39,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:05:39,622 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:39,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash -979745861, now seen corresponding path program 1 times [2024-11-27 20:05:39,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:39,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193211226] [2024-11-27 20:05:39,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:39,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:39,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:39,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193211226] [2024-11-27 20:05:39,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193211226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:39,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:39,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:39,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439655060] [2024-11-27 20:05:39,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:39,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:39,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:39,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:39,872 INFO L87 Difference]: Start difference. First operand 3823 states and 6619 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:40,096 INFO L93 Difference]: Finished difference Result 7409 states and 12838 transitions. [2024-11-27 20:05:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:40,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-27 20:05:40,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:40,124 INFO L225 Difference]: With dead ends: 7409 [2024-11-27 20:05:40,124 INFO L226 Difference]: Without dead ends: 5415 [2024-11-27 20:05:40,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:40,131 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 149 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:40,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1060 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:40,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2024-11-27 20:05:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 5413. [2024-11-27 20:05:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5413 states, 5412 states have (on average 1.7235772357723578) internal successors, (9328), 5412 states have internal predecessors, (9328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 9328 transitions. [2024-11-27 20:05:40,348 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 9328 transitions. Word has length 136 [2024-11-27 20:05:40,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:40,348 INFO L471 AbstractCegarLoop]: Abstraction has 5413 states and 9328 transitions. [2024-11-27 20:05:40,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 9328 transitions. [2024-11-27 20:05:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:05:40,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:40,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:40,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:05:40,352 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:40,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash -993525919, now seen corresponding path program 1 times [2024-11-27 20:05:40,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:40,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531239097] [2024-11-27 20:05:40,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:40,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:40,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:40,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531239097] [2024-11-27 20:05:40,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531239097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:40,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:40,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:40,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294617450] [2024-11-27 20:05:40,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:40,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:40,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:40,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:40,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:40,616 INFO L87 Difference]: Start difference. First operand 5413 states and 9328 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:40,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:40,853 INFO L93 Difference]: Finished difference Result 10473 states and 18062 transitions. [2024-11-27 20:05:40,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:40,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-27 20:05:40,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:40,913 INFO L225 Difference]: With dead ends: 10473 [2024-11-27 20:05:40,913 INFO L226 Difference]: Without dead ends: 7639 [2024-11-27 20:05:40,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:40,921 INFO L435 NwaCegarLoop]: 582 mSDtfsCounter, 142 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:40,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1045 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2024-11-27 20:05:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 7637. [2024-11-27 20:05:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7637 states, 7636 states have (on average 1.714772132006286) internal successors, (13094), 7636 states have internal predecessors, (13094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7637 states to 7637 states and 13094 transitions. [2024-11-27 20:05:41,260 INFO L78 Accepts]: Start accepts. Automaton has 7637 states and 13094 transitions. Word has length 136 [2024-11-27 20:05:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:41,261 INFO L471 AbstractCegarLoop]: Abstraction has 7637 states and 13094 transitions. [2024-11-27 20:05:41,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:41,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7637 states and 13094 transitions. [2024-11-27 20:05:41,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:05:41,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:41,267 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:41,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:05:41,267 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:41,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:41,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1484688773, now seen corresponding path program 1 times [2024-11-27 20:05:41,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:41,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889451611] [2024-11-27 20:05:41,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:41,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:41,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:41,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889451611] [2024-11-27 20:05:41,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889451611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:41,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:41,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:41,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057748586] [2024-11-27 20:05:41,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:41,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:41,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:41,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:41,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:41,509 INFO L87 Difference]: Start difference. First operand 7637 states and 13094 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:41,734 INFO L93 Difference]: Finished difference Result 14737 states and 25278 transitions. [2024-11-27 20:05:41,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:41,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-27 20:05:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:41,769 INFO L225 Difference]: With dead ends: 14737 [2024-11-27 20:05:41,770 INFO L226 Difference]: Without dead ends: 10721 [2024-11-27 20:05:41,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:41,779 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 135 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:41,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1030 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2024-11-27 20:05:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 10719. [2024-11-27 20:05:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10719 states, 10718 states have (on average 1.70460906885613) internal successors, (18270), 10718 states have internal predecessors, (18270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10719 states to 10719 states and 18270 transitions. [2024-11-27 20:05:42,258 INFO L78 Accepts]: Start accepts. Automaton has 10719 states and 18270 transitions. Word has length 136 [2024-11-27 20:05:42,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:42,259 INFO L471 AbstractCegarLoop]: Abstraction has 10719 states and 18270 transitions. [2024-11-27 20:05:42,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:42,260 INFO L276 IsEmpty]: Start isEmpty. Operand 10719 states and 18270 transitions. [2024-11-27 20:05:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:05:42,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:42,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:42,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:05:42,263 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:42,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 660836229, now seen corresponding path program 1 times [2024-11-27 20:05:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:42,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203359286] [2024-11-27 20:05:42,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:42,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:42,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:42,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203359286] [2024-11-27 20:05:42,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203359286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:42,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:42,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:42,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757481271] [2024-11-27 20:05:42,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:42,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:42,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:42,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:42,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:42,522 INFO L87 Difference]: Start difference. First operand 10719 states and 18270 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:43,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:43,143 INFO L93 Difference]: Finished difference Result 34764 states and 59349 transitions. [2024-11-27 20:05:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:43,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-27 20:05:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:43,215 INFO L225 Difference]: With dead ends: 34764 [2024-11-27 20:05:43,215 INFO L226 Difference]: Without dead ends: 24351 [2024-11-27 20:05:43,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:43,232 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 509 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:43,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1569 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24351 states. [2024-11-27 20:05:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24351 to 17481. [2024-11-27 20:05:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17481 states, 17480 states have (on average 1.6966819221967964) internal successors, (29658), 17480 states have internal predecessors, (29658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17481 states to 17481 states and 29658 transitions. [2024-11-27 20:05:44,208 INFO L78 Accepts]: Start accepts. Automaton has 17481 states and 29658 transitions. Word has length 136 [2024-11-27 20:05:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:44,208 INFO L471 AbstractCegarLoop]: Abstraction has 17481 states and 29658 transitions. [2024-11-27 20:05:44,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 17481 states and 29658 transitions. [2024-11-27 20:05:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:05:44,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:44,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:44,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:05:44,211 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:44,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:44,213 INFO L85 PathProgramCache]: Analyzing trace with hash -375568863, now seen corresponding path program 1 times [2024-11-27 20:05:44,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:44,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409006472] [2024-11-27 20:05:44,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:44,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:44,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:44,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:44,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409006472] [2024-11-27 20:05:44,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409006472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:44,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:44,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:44,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176733550] [2024-11-27 20:05:44,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:44,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:44,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:44,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:44,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:44,451 INFO L87 Difference]: Start difference. First operand 17481 states and 29658 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:45,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:45,095 INFO L93 Difference]: Finished difference Result 38978 states and 66415 transitions. [2024-11-27 20:05:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:45,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-27 20:05:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:45,167 INFO L225 Difference]: With dead ends: 38978 [2024-11-27 20:05:45,168 INFO L226 Difference]: Without dead ends: 26602 [2024-11-27 20:05:45,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:45,182 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 156 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:45,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1085 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:45,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26602 states. [2024-11-27 20:05:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26602 to 26600. [2024-11-27 20:05:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26600 states, 26599 states have (on average 1.6881085755103575) internal successors, (44902), 26599 states have internal predecessors, (44902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26600 states to 26600 states and 44902 transitions. [2024-11-27 20:05:46,257 INFO L78 Accepts]: Start accepts. Automaton has 26600 states and 44902 transitions. Word has length 136 [2024-11-27 20:05:46,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:46,258 INFO L471 AbstractCegarLoop]: Abstraction has 26600 states and 44902 transitions. [2024-11-27 20:05:46,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:46,259 INFO L276 IsEmpty]: Start isEmpty. Operand 26600 states and 44902 transitions. [2024-11-27 20:05:46,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:05:46,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:46,261 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:46,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:05:46,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:46,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1549455952, now seen corresponding path program 1 times [2024-11-27 20:05:46,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:46,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717311307] [2024-11-27 20:05:46,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:46,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:46,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:46,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717311307] [2024-11-27 20:05:46,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717311307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:46,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:46,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:46,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558111803] [2024-11-27 20:05:46,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:46,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:46,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:46,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:46,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:46,649 INFO L87 Difference]: Start difference. First operand 26600 states and 44902 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:48,046 INFO L93 Difference]: Finished difference Result 86940 states and 146868 transitions. [2024-11-27 20:05:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:48,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-27 20:05:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:48,259 INFO L225 Difference]: With dead ends: 86940 [2024-11-27 20:05:48,260 INFO L226 Difference]: Without dead ends: 60568 [2024-11-27 20:05:48,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:48,309 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 507 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:48,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1571 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:48,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60568 states. [2024-11-27 20:05:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60568 to 43441. [2024-11-27 20:05:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43441 states, 43440 states have (on average 1.6784300184162062) internal successors, (72911), 43440 states have internal predecessors, (72911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43441 states to 43441 states and 72911 transitions. [2024-11-27 20:05:50,274 INFO L78 Accepts]: Start accepts. Automaton has 43441 states and 72911 transitions. Word has length 137 [2024-11-27 20:05:50,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:50,275 INFO L471 AbstractCegarLoop]: Abstraction has 43441 states and 72911 transitions. [2024-11-27 20:05:50,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 43441 states and 72911 transitions. [2024-11-27 20:05:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 20:05:50,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:50,277 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:50,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:05:50,278 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:50,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:50,279 INFO L85 PathProgramCache]: Analyzing trace with hash -799099364, now seen corresponding path program 1 times [2024-11-27 20:05:50,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:50,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370912584] [2024-11-27 20:05:50,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:50,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:50,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370912584] [2024-11-27 20:05:50,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370912584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:50,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637385968] [2024-11-27 20:05:50,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:50,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:50,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:50,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:50,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:50,668 INFO L87 Difference]: Start difference. First operand 43441 states and 72911 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:52,378 INFO L93 Difference]: Finished difference Result 140394 states and 235818 transitions. [2024-11-27 20:05:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:52,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-27 20:05:52,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:52,709 INFO L225 Difference]: With dead ends: 140394 [2024-11-27 20:05:52,709 INFO L226 Difference]: Without dead ends: 97181 [2024-11-27 20:05:52,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:52,761 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 505 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:52,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1573 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97181 states. [2024-11-27 20:05:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97181 to 70086. [2024-11-27 20:05:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70086 states, 70085 states have (on average 1.6690589997859742) internal successors, (116976), 70085 states have internal predecessors, (116976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70086 states to 70086 states and 116976 transitions. [2024-11-27 20:05:55,183 INFO L78 Accepts]: Start accepts. Automaton has 70086 states and 116976 transitions. Word has length 138 [2024-11-27 20:05:55,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:55,183 INFO L471 AbstractCegarLoop]: Abstraction has 70086 states and 116976 transitions. [2024-11-27 20:05:55,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 70086 states and 116976 transitions. [2024-11-27 20:05:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-27 20:05:55,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:55,186 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:55,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:05:55,186 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:05:55,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1351493516, now seen corresponding path program 1 times [2024-11-27 20:05:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972750639] [2024-11-27 20:05:55,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:56,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:56,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972750639] [2024-11-27 20:05:56,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972750639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:56,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:56,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:05:56,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105129014] [2024-11-27 20:05:56,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:56,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:05:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:56,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:05:56,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:56,182 INFO L87 Difference]: Start difference. First operand 70086 states and 116976 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:57,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:57,955 INFO L93 Difference]: Finished difference Result 139946 states and 233587 transitions. [2024-11-27 20:05:57,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:05:57,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-27 20:05:57,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:58,209 INFO L225 Difference]: With dead ends: 139946 [2024-11-27 20:05:58,209 INFO L226 Difference]: Without dead ends: 70088 [2024-11-27 20:05:58,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:05:58,289 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 543 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:58,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1846 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70088 states. [2024-11-27 20:06:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70088 to 70086. [2024-11-27 20:06:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70086 states, 70085 states have (on average 1.6601412570450167) internal successors, (116351), 70085 states have internal predecessors, (116351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70086 states to 70086 states and 116351 transitions. [2024-11-27 20:06:00,510 INFO L78 Accepts]: Start accepts. Automaton has 70086 states and 116351 transitions. Word has length 140 [2024-11-27 20:06:00,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:00,511 INFO L471 AbstractCegarLoop]: Abstraction has 70086 states and 116351 transitions. [2024-11-27 20:06:00,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 70086 states and 116351 transitions. [2024-11-27 20:06:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:06:00,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:00,513 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:00,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:06:00,514 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1927733203, now seen corresponding path program 1 times [2024-11-27 20:06:00,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555332655] [2024-11-27 20:06:00,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:01,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:01,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555332655] [2024-11-27 20:06:01,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555332655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:01,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:01,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:06:01,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994626044] [2024-11-27 20:06:01,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:01,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:06:01,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:01,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:06:01,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:01,402 INFO L87 Difference]: Start difference. First operand 70086 states and 116351 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:04,181 INFO L93 Difference]: Finished difference Result 204952 states and 340663 transitions. [2024-11-27 20:06:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:04,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-27 20:06:04,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:04,445 INFO L225 Difference]: With dead ends: 204952 [2024-11-27 20:06:04,445 INFO L226 Difference]: Without dead ends: 135094 [2024-11-27 20:06:04,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:06:04,496 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 269 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:04,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1857 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135094 states. [2024-11-27 20:06:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135094 to 135092. [2024-11-27 20:06:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135092 states, 135091 states have (on average 1.648222309406252) internal successors, (222660), 135091 states have internal predecessors, (222660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135092 states to 135092 states and 222660 transitions. [2024-11-27 20:06:08,395 INFO L78 Accepts]: Start accepts. Automaton has 135092 states and 222660 transitions. Word has length 143 [2024-11-27 20:06:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:08,396 INFO L471 AbstractCegarLoop]: Abstraction has 135092 states and 222660 transitions. [2024-11-27 20:06:08,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 135092 states and 222660 transitions. [2024-11-27 20:06:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 20:06:08,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:08,398 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:08,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:06:08,399 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:08,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:08,400 INFO L85 PathProgramCache]: Analyzing trace with hash -801158179, now seen corresponding path program 1 times [2024-11-27 20:06:08,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:08,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073046345] [2024-11-27 20:06:08,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:08,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:09,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:06:09,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:09,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073046345] [2024-11-27 20:06:09,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073046345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:09,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:09,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:06:09,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809727045] [2024-11-27 20:06:09,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:09,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:09,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:09,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:09,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:09,107 INFO L87 Difference]: Start difference. First operand 135092 states and 222660 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:11,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:11,239 INFO L93 Difference]: Finished difference Result 140902 states and 230405 transitions. [2024-11-27 20:06:11,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:11,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-27 20:06:11,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:11,475 INFO L225 Difference]: With dead ends: 140902 [2024-11-27 20:06:11,475 INFO L226 Difference]: Without dead ends: 140900 [2024-11-27 20:06:11,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:11,495 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 0 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:11,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1945 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:11,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140900 states. [2024-11-27 20:06:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140900 to 140900. [2024-11-27 20:06:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140900 states, 140899 states have (on average 1.6213103002860205) internal successors, (228441), 140899 states have internal predecessors, (228441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:14,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140900 states to 140900 states and 228441 transitions. [2024-11-27 20:06:14,947 INFO L78 Accepts]: Start accepts. Automaton has 140900 states and 228441 transitions. Word has length 144 [2024-11-27 20:06:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:14,947 INFO L471 AbstractCegarLoop]: Abstraction has 140900 states and 228441 transitions. [2024-11-27 20:06:14,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 140900 states and 228441 transitions. [2024-11-27 20:06:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-27 20:06:14,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:14,957 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:14,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:06:14,957 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:14,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:14,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1109436188, now seen corresponding path program 1 times [2024-11-27 20:06:14,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:14,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756756350] [2024-11-27 20:06:14,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:14,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:06:15,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:15,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756756350] [2024-11-27 20:06:15,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756756350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:15,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:15,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:06:15,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701288750] [2024-11-27 20:06:15,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:15,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:06:15,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:15,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:06:15,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:15,328 INFO L87 Difference]: Start difference. First operand 140900 states and 228441 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:19,950 INFO L93 Difference]: Finished difference Result 387322 states and 629294 transitions. [2024-11-27 20:06:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:19,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 180 [2024-11-27 20:06:19,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:20,436 INFO L225 Difference]: With dead ends: 387322 [2024-11-27 20:06:20,437 INFO L226 Difference]: Without dead ends: 324820 [2024-11-27 20:06:20,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:06:20,981 INFO L435 NwaCegarLoop]: 657 mSDtfsCounter, 1024 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:20,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2828 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:06:21,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324820 states. [2024-11-27 20:06:26,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324820 to 227128. [2024-11-27 20:06:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227128 states, 227127 states have (on average 1.6181475562130438) internal successors, (367525), 227127 states have internal predecessors, (367525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227128 states to 227128 states and 367525 transitions. [2024-11-27 20:06:26,563 INFO L78 Accepts]: Start accepts. Automaton has 227128 states and 367525 transitions. Word has length 180 [2024-11-27 20:06:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:26,564 INFO L471 AbstractCegarLoop]: Abstraction has 227128 states and 367525 transitions. [2024-11-27 20:06:26,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 227128 states and 367525 transitions. [2024-11-27 20:06:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-27 20:06:26,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:26,571 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:26,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:06:26,572 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:06:26,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:26,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1123216246, now seen corresponding path program 1 times [2024-11-27 20:06:26,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237491418] [2024-11-27 20:06:26,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:26,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:06:27,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:27,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237491418] [2024-11-27 20:06:27,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237491418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:27,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:27,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:06:27,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374500886] [2024-11-27 20:06:27,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:27,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:06:27,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:27,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:06:27,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:27,397 INFO L87 Difference]: Start difference. First operand 227128 states and 367525 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)