./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX --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 5a8db184ab7332ab7843787a030506038544a962a60c0b43f4b663ada8e12be3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:24:50,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:24:50,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:24:50,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:24:50,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:24:50,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:24:50,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:24:50,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:24:50,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:24:50,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:24:50,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:24:50,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:24:50,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:24:50,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:24:50,814 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:24:50,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:24:50,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:24:50,818 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:24:50,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:24:50,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:24:50,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:24:50,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:24:50,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:24:50,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:24:50,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:24:50,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:24:50,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:24:50,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:24:50,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:24:50,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:24:50,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:24:50,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:24:50,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:24:50,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:24:50,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:24:50,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:24:50,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:24:50,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:24:50,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:24:50,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:24:50,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:24:50,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:24:50,833 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8db184ab7332ab7843787a030506038544a962a60c0b43f4b663ada8e12be3 [2024-11-08 16:24:51,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:24:51,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:24:51,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:24:51,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:24:51,116 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:24:51,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c Unable to find full path for "g++" [2024-11-08 16:24:53,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:24:53,697 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:24:53,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c [2024-11-08 16:24:53,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/data/63810419a/6dc896d1dde547d39db6cff4ac83afa0/FLAGd028f16ea [2024-11-08 16:24:54,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/data/63810419a/6dc896d1dde547d39db6cff4ac83afa0 [2024-11-08 16:24:54,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:24:54,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:24:54,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:24:54,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:24:54,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:24:54,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:24:54" (1/1) ... [2024-11-08 16:24:54,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c7a1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:54, skipping insertion in model container [2024-11-08 16:24:54,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:24:54" (1/1) ... [2024-11-08 16:24:54,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:24:54,758 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_fc6e1cf3-a488-4215-8897-fad4917bc6c4/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c[20426,20439] [2024-11-08 16:24:54,811 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_fc6e1cf3-a488-4215-8897-fad4917bc6c4/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c[23243,23256] [2024-11-08 16:24:55,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:24:55,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:24:55,890 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_fc6e1cf3-a488-4215-8897-fad4917bc6c4/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c[20426,20439] [2024-11-08 16:24:55,896 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_fc6e1cf3-a488-4215-8897-fad4917bc6c4/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c[23243,23256] [2024-11-08 16:24:56,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:24:56,503 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:24:56,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56 WrapperNode [2024-11-08 16:24:56,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:24:56,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:24:56,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:24:56,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:24:56,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:56,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:56,967 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-11-08 16:24:56,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:24:56,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:24:56,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:24:56,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:24:56,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:56,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,230 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]. [2024-11-08 16:24:57,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:24:57,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:24:57,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:24:57,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:24:57,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (1/1) ... [2024-11-08 16:24:57,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:24:57,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:24:57,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:24:57,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:24:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:24:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:24:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:24:57,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:24:57,922 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:24:57,927 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:25:03,732 INFO L? ?]: Removed 755 outVars from TransFormulas that were not future-live. [2024-11-08 16:25:03,732 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:25:03,785 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:25:03,785 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:25:03,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:25:03 BoogieIcfgContainer [2024-11-08 16:25:03,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:25:03,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:25:03,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:25:03,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:25:03,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:24:54" (1/3) ... [2024-11-08 16:25:03,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a779446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:25:03, skipping insertion in model container [2024-11-08 16:25:03,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:56" (2/3) ... [2024-11-08 16:25:03,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a779446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:25:03, skipping insertion in model container [2024-11-08 16:25:03,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:25:03" (3/3) ... [2024-11-08 16:25:03,796 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c [2024-11-08 16:25:03,815 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:25:03,815 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:25:03,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:25:03,933 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;@64d6debb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:25:03,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:25:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 16:25:03,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:03,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:03,954 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:03,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash 54078772, now seen corresponding path program 1 times [2024-11-08 16:25:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:03,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611978045] [2024-11-08 16:25:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:03,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:04,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:04,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611978045] [2024-11-08 16:25:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611978045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:04,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:04,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:25:04,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287333615] [2024-11-08 16:25:04,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:04,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:04,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:04,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:04,420 INFO L87 Difference]: Start difference. First operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:09,066 INFO L93 Difference]: Finished difference Result 2561 states and 4926 transitions. [2024-11-08 16:25:09,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:09,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-08 16:25:09,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:09,090 INFO L225 Difference]: With dead ends: 2561 [2024-11-08 16:25:09,091 INFO L226 Difference]: Without dead ends: 1616 [2024-11-08 16:25:09,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:09,105 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 1009 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:09,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 681 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 16:25:09,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-08 16:25:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-11-08 16:25:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1614 states have (on average 1.648079306071871) internal successors, (2660), 1615 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2660 transitions. [2024-11-08 16:25:09,264 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2660 transitions. Word has length 24 [2024-11-08 16:25:09,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:09,266 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2660 transitions. [2024-11-08 16:25:09,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:09,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2660 transitions. [2024-11-08 16:25:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 16:25:09,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:09,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:09,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:25:09,269 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:09,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:09,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1798067886, now seen corresponding path program 1 times [2024-11-08 16:25:09,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80473867] [2024-11-08 16:25:09,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:09,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80473867] [2024-11-08 16:25:09,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80473867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:09,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:09,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:25:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012103467] [2024-11-08 16:25:09,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:09,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:25:09,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:09,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:25:09,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:25:09,583 INFO L87 Difference]: Start difference. First operand 1616 states and 2660 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:09,737 INFO L93 Difference]: Finished difference Result 1675 states and 2752 transitions. [2024-11-08 16:25:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:25:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-08 16:25:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:09,744 INFO L225 Difference]: With dead ends: 1675 [2024-11-08 16:25:09,744 INFO L226 Difference]: Without dead ends: 1616 [2024-11-08 16:25:09,746 INFO L431 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 [2024-11-08 16:25:09,747 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:09,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6469 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-08 16:25:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-11-08 16:25:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1614 states have (on average 1.6171003717472119) internal successors, (2610), 1615 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2610 transitions. [2024-11-08 16:25:09,793 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2610 transitions. Word has length 29 [2024-11-08 16:25:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:09,794 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2610 transitions. [2024-11-08 16:25:09,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2610 transitions. [2024-11-08 16:25:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 16:25:09,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:09,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:09,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:25:09,801 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:09,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 155952879, now seen corresponding path program 1 times [2024-11-08 16:25:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:09,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119303408] [2024-11-08 16:25:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:10,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119303408] [2024-11-08 16:25:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119303408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:10,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:10,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726554757] [2024-11-08 16:25:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:10,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:10,209 INFO L87 Difference]: Start difference. First operand 1616 states and 2610 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:10,778 INFO L93 Difference]: Finished difference Result 2386 states and 3842 transitions. [2024-11-08 16:25:10,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:25:10,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-08 16:25:10,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:10,789 INFO L225 Difference]: With dead ends: 2386 [2024-11-08 16:25:10,790 INFO L226 Difference]: Without dead ends: 2331 [2024-11-08 16:25:10,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:25:10,795 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 11516 mSDsluCounter, 3602 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11516 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:10,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11516 Valid, 5181 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:25:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2024-11-08 16:25:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 1669. [2024-11-08 16:25:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1667 states have (on average 1.6166766646670665) internal successors, (2695), 1668 states have internal predecessors, (2695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2695 transitions. [2024-11-08 16:25:10,847 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2695 transitions. Word has length 78 [2024-11-08 16:25:10,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:10,849 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2695 transitions. [2024-11-08 16:25:10,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2695 transitions. [2024-11-08 16:25:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 16:25:10,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:10,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:10,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:25:10,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:10,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:10,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1868830113, now seen corresponding path program 1 times [2024-11-08 16:25:10,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:10,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232131369] [2024-11-08 16:25:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:10,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:11,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:11,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232131369] [2024-11-08 16:25:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232131369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538281685] [2024-11-08 16:25:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:11,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:11,025 INFO L87 Difference]: Start difference. First operand 1669 states and 2695 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:11,071 INFO L93 Difference]: Finished difference Result 1874 states and 3022 transitions. [2024-11-08 16:25:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:11,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-08 16:25:11,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:11,079 INFO L225 Difference]: With dead ends: 1874 [2024-11-08 16:25:11,079 INFO L226 Difference]: Without dead ends: 1766 [2024-11-08 16:25:11,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:11,081 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1498 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:11,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:11,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-08 16:25:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-11-08 16:25:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.6146424517593643) internal successors, (2845), 1763 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2845 transitions. [2024-11-08 16:25:11,126 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2845 transitions. Word has length 80 [2024-11-08 16:25:11,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:11,127 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2845 transitions. [2024-11-08 16:25:11,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2845 transitions. [2024-11-08 16:25:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 16:25:11,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:11,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:11,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:25:11,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:11,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1802336601, now seen corresponding path program 1 times [2024-11-08 16:25:11,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:11,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188916374] [2024-11-08 16:25:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:11,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:11,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:11,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188916374] [2024-11-08 16:25:11,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188916374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:11,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:11,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:11,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957496409] [2024-11-08 16:25:11,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:11,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:11,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:11,813 INFO L87 Difference]: Start difference. First operand 1764 states and 2845 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:12,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:12,322 INFO L93 Difference]: Finished difference Result 1969 states and 3169 transitions. [2024-11-08 16:25:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:25:12,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-08 16:25:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:12,330 INFO L225 Difference]: With dead ends: 1969 [2024-11-08 16:25:12,331 INFO L226 Difference]: Without dead ends: 1766 [2024-11-08 16:25:12,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:25:12,333 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4557 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4557 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:12,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4557 Valid, 2087 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:25:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-08 16:25:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-11-08 16:25:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.6135073779795688) internal successors, (2843), 1763 states have internal predecessors, (2843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2843 transitions. [2024-11-08 16:25:12,394 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2843 transitions. Word has length 80 [2024-11-08 16:25:12,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:12,395 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2843 transitions. [2024-11-08 16:25:12,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:12,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2843 transitions. [2024-11-08 16:25:12,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 16:25:12,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:12,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:12,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:25:12,398 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:12,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:12,399 INFO L85 PathProgramCache]: Analyzing trace with hash -452582696, now seen corresponding path program 1 times [2024-11-08 16:25:12,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:12,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997104874] [2024-11-08 16:25:12,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:12,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:12,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:12,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997104874] [2024-11-08 16:25:12,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997104874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:12,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:12,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:25:12,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17742748] [2024-11-08 16:25:12,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:12,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:25:12,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:12,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:25:12,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:25:12,936 INFO L87 Difference]: Start difference. First operand 1764 states and 2843 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:13,056 INFO L93 Difference]: Finished difference Result 1772 states and 2852 transitions. [2024-11-08 16:25:13,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:25:13,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 16:25:13,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:13,068 INFO L225 Difference]: With dead ends: 1772 [2024-11-08 16:25:13,069 INFO L226 Difference]: Without dead ends: 1770 [2024-11-08 16:25:13,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:25:13,071 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 9449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11026 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:13,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11026 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-08 16:25:13,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2024-11-08 16:25:13,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1768 states have (on average 1.6108597285067874) internal successors, (2848), 1769 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2848 transitions. [2024-11-08 16:25:13,131 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2848 transitions. Word has length 81 [2024-11-08 16:25:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:13,132 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2848 transitions. [2024-11-08 16:25:13,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2848 transitions. [2024-11-08 16:25:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:13,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:13,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:13,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:25:13,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:13,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:13,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1418268327, now seen corresponding path program 1 times [2024-11-08 16:25:13,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:13,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584545972] [2024-11-08 16:25:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:13,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:13,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:13,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584545972] [2024-11-08 16:25:13,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584545972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:13,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:13,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:13,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139104648] [2024-11-08 16:25:13,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:13,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:13,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:13,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,231 INFO L87 Difference]: Start difference. First operand 1770 states and 2848 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:13,279 INFO L93 Difference]: Finished difference Result 1993 states and 3194 transitions. [2024-11-08 16:25:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:13,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:13,287 INFO L225 Difference]: With dead ends: 1993 [2024-11-08 16:25:13,287 INFO L226 Difference]: Without dead ends: 1879 [2024-11-08 16:25:13,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,291 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1516 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:13,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1744 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:13,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2024-11-08 16:25:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1877. [2024-11-08 16:25:13,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 1.6064) internal successors, (3012), 1876 states have internal predecessors, (3012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3012 transitions. [2024-11-08 16:25:13,341 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3012 transitions. Word has length 82 [2024-11-08 16:25:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:13,341 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 3012 transitions. [2024-11-08 16:25:13,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3012 transitions. [2024-11-08 16:25:13,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:13,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:13,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:13,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:25:13,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:13,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:13,344 INFO L85 PathProgramCache]: Analyzing trace with hash -934629465, now seen corresponding path program 1 times [2024-11-08 16:25:13,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:13,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977879985] [2024-11-08 16:25:13,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:13,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:13,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977879985] [2024-11-08 16:25:13,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977879985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:13,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:13,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:13,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233315474] [2024-11-08 16:25:13,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:13,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:13,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:13,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:13,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,438 INFO L87 Difference]: Start difference. First operand 1877 states and 3012 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:13,489 INFO L93 Difference]: Finished difference Result 2479 states and 3944 transitions. [2024-11-08 16:25:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:13,497 INFO L225 Difference]: With dead ends: 2479 [2024-11-08 16:25:13,498 INFO L226 Difference]: Without dead ends: 2166 [2024-11-08 16:25:13,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,500 INFO L432 NwaCegarLoop]: 1657 mSDtfsCounter, 1514 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:13,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-08 16:25:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2164. [2024-11-08 16:25:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2162 states have (on average 1.5957446808510638) internal successors, (3450), 2163 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 3450 transitions. [2024-11-08 16:25:13,599 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 3450 transitions. Word has length 82 [2024-11-08 16:25:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:13,600 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 3450 transitions. [2024-11-08 16:25:13,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 3450 transitions. [2024-11-08 16:25:13,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:13,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:13,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:13,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:25:13,602 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:13,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:13,602 INFO L85 PathProgramCache]: Analyzing trace with hash -771714905, now seen corresponding path program 1 times [2024-11-08 16:25:13,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:13,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750749605] [2024-11-08 16:25:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:13,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750749605] [2024-11-08 16:25:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750749605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:13,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:13,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:13,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254357314] [2024-11-08 16:25:13,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:13,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:13,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:13,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,685 INFO L87 Difference]: Start difference. First operand 2164 states and 3450 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:13,752 INFO L93 Difference]: Finished difference Result 3316 states and 5216 transitions. [2024-11-08 16:25:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:13,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:13,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:13,762 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 16:25:13,762 INFO L226 Difference]: Without dead ends: 2716 [2024-11-08 16:25:13,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,765 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1512 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:13,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2024-11-08 16:25:13,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2714. [2024-11-08 16:25:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2712 states have (on average 1.5774336283185841) internal successors, (4278), 2713 states have internal predecessors, (4278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 4278 transitions. [2024-11-08 16:25:13,848 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 4278 transitions. Word has length 82 [2024-11-08 16:25:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:13,849 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 4278 transitions. [2024-11-08 16:25:13,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:13,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 4278 transitions. [2024-11-08 16:25:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:13,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:13,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:13,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:25:13,851 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:13,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash -507858521, now seen corresponding path program 1 times [2024-11-08 16:25:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:13,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027314315] [2024-11-08 16:25:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:13,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:13,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027314315] [2024-11-08 16:25:13,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027314315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:13,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:13,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:13,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179802196] [2024-11-08 16:25:13,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:13,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:13,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:13,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:13,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:13,952 INFO L87 Difference]: Start difference. First operand 2714 states and 4278 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:14,029 INFO L93 Difference]: Finished difference Result 4918 states and 7616 transitions. [2024-11-08 16:25:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:14,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:14,041 INFO L225 Difference]: With dead ends: 4918 [2024-11-08 16:25:14,042 INFO L226 Difference]: Without dead ends: 3768 [2024-11-08 16:25:14,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:14,045 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 1510 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:14,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2024-11-08 16:25:14,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3766. [2024-11-08 16:25:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 1.551009564293305) internal successors, (5838), 3765 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5838 transitions. [2024-11-08 16:25:14,157 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5838 transitions. Word has length 82 [2024-11-08 16:25:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:14,158 INFO L471 AbstractCegarLoop]: Abstraction has 3766 states and 5838 transitions. [2024-11-08 16:25:14,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5838 transitions. [2024-11-08 16:25:14,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:14,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:14,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:14,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:25:14,160 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:14,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:14,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1485065305, now seen corresponding path program 1 times [2024-11-08 16:25:14,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:14,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319793048] [2024-11-08 16:25:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:14,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:14,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:14,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319793048] [2024-11-08 16:25:14,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319793048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:14,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:14,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:14,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219903332] [2024-11-08 16:25:14,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:14,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:14,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:14,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:14,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:14,245 INFO L87 Difference]: Start difference. First operand 3766 states and 5838 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:14,364 INFO L93 Difference]: Finished difference Result 7978 states and 12128 transitions. [2024-11-08 16:25:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:14,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:14,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:14,388 INFO L225 Difference]: With dead ends: 7978 [2024-11-08 16:25:14,388 INFO L226 Difference]: Without dead ends: 5776 [2024-11-08 16:25:14,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:14,392 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 1506 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:14,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2024-11-08 16:25:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 5774. [2024-11-08 16:25:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 5772 states have (on average 1.5187110187110187) internal successors, (8766), 5773 states have internal predecessors, (8766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 8766 transitions. [2024-11-08 16:25:14,586 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 8766 transitions. Word has length 82 [2024-11-08 16:25:14,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:14,587 INFO L471 AbstractCegarLoop]: Abstraction has 5774 states and 8766 transitions. [2024-11-08 16:25:14,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 8766 transitions. [2024-11-08 16:25:14,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:14,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:14,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:14,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:25:14,591 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:14,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash 295867559, now seen corresponding path program 1 times [2024-11-08 16:25:14,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906055657] [2024-11-08 16:25:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:14,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:14,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906055657] [2024-11-08 16:25:14,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906055657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:14,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:14,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595884126] [2024-11-08 16:25:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:14,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:14,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:14,679 INFO L87 Difference]: Start difference. First operand 5774 states and 8766 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:14,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:14,885 INFO L93 Difference]: Finished difference Result 13810 states and 20576 transitions. [2024-11-08 16:25:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:14,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:14,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:14,919 INFO L225 Difference]: With dead ends: 13810 [2024-11-08 16:25:14,919 INFO L226 Difference]: Without dead ends: 9600 [2024-11-08 16:25:14,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:14,926 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 1504 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:14,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2024-11-08 16:25:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9598. [2024-11-08 16:25:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9596 states have (on average 1.4837432263443102) internal successors, (14238), 9597 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 14238 transitions. [2024-11-08 16:25:15,316 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 14238 transitions. Word has length 82 [2024-11-08 16:25:15,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:15,317 INFO L471 AbstractCegarLoop]: Abstraction has 9598 states and 14238 transitions. [2024-11-08 16:25:15,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:15,317 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 14238 transitions. [2024-11-08 16:25:15,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:25:15,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:15,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:25:15,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:25:15,318 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:15,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:15,319 INFO L85 PathProgramCache]: Analyzing trace with hash 730403495, now seen corresponding path program 1 times [2024-11-08 16:25:15,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:15,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214792480] [2024-11-08 16:25:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:15,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:15,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:15,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214792480] [2024-11-08 16:25:15,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214792480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:15,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:15,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:15,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954094792] [2024-11-08 16:25:15,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:15,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:15,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:15,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:15,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:15,403 INFO L87 Difference]: Start difference. First operand 9598 states and 14238 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:15,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:15,739 INFO L93 Difference]: Finished difference Result 24898 states and 36320 transitions. [2024-11-08 16:25:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:15,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 16:25:15,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:15,774 INFO L225 Difference]: With dead ends: 24898 [2024-11-08 16:25:15,774 INFO L226 Difference]: Without dead ends: 16864 [2024-11-08 16:25:15,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:15,787 INFO L432 NwaCegarLoop]: 1651 mSDtfsCounter, 1508 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:15,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1756 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:25:15,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2024-11-08 16:25:16,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 16862. [2024-11-08 16:25:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16862 states, 16860 states have (on average 1.4480427046263344) internal successors, (24414), 16861 states have internal predecessors, (24414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:16,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16862 states to 16862 states and 24414 transitions. [2024-11-08 16:25:16,450 INFO L78 Accepts]: Start accepts. Automaton has 16862 states and 24414 transitions. Word has length 82 [2024-11-08 16:25:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:16,451 INFO L471 AbstractCegarLoop]: Abstraction has 16862 states and 24414 transitions. [2024-11-08 16:25:16,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 16862 states and 24414 transitions. [2024-11-08 16:25:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:25:16,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:16,453 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:16,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:25:16,453 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:16,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:16,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1230214825, now seen corresponding path program 1 times [2024-11-08 16:25:16,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:16,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239864958] [2024-11-08 16:25:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:16,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:16,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239864958] [2024-11-08 16:25:16,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239864958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:25:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735538036] [2024-11-08 16:25:16,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:16,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:25:16,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:25:16,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:25:16,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:25:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:16,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 16:25:16,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:25:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:16,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:25:16,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735538036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:16,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:25:16,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 16:25:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303675768] [2024-11-08 16:25:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:16,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:16,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:25:16,909 INFO L87 Difference]: Start difference. First operand 16862 states and 24414 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:21,673 INFO L93 Difference]: Finished difference Result 19868 states and 29341 transitions. [2024-11-08 16:25:21,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:21,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-08 16:25:21,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:21,711 INFO L225 Difference]: With dead ends: 19868 [2024-11-08 16:25:21,711 INFO L226 Difference]: Without dead ends: 18364 [2024-11-08 16:25:21,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:25:21,718 INFO L432 NwaCegarLoop]: 1293 mSDtfsCounter, 745 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:21,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1445 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 16:25:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18364 states. [2024-11-08 16:25:22,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18364 to 18364. [2024-11-08 16:25:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18364 states, 18362 states have (on average 1.4470101296155102) internal successors, (26570), 18363 states have internal predecessors, (26570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18364 states to 18364 states and 26570 transitions. [2024-11-08 16:25:22,394 INFO L78 Accepts]: Start accepts. Automaton has 18364 states and 26570 transitions. Word has length 95 [2024-11-08 16:25:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:22,394 INFO L471 AbstractCegarLoop]: Abstraction has 18364 states and 26570 transitions. [2024-11-08 16:25:22,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 18364 states and 26570 transitions. [2024-11-08 16:25:22,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 16:25:22,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:22,397 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:22,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:25:22,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc6e1cf3-a488-4215-8897-fad4917bc6c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:25:22,598 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:22,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:22,598 INFO L85 PathProgramCache]: Analyzing trace with hash -32512144, now seen corresponding path program 1 times [2024-11-08 16:25:22,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:22,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766380487] [2024-11-08 16:25:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:22,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:22,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:22,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766380487] [2024-11-08 16:25:22,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766380487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:22,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:22,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:25:22,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539933738] [2024-11-08 16:25:22,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:22,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:25:22,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:22,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:25:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:22,729 INFO L87 Difference]: Start difference. First operand 18364 states and 26570 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:27,187 INFO L93 Difference]: Finished difference Result 24374 states and 35809 transitions. [2024-11-08 16:25:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:25:27,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-08 16:25:27,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:27,225 INFO L225 Difference]: With dead ends: 24374 [2024-11-08 16:25:27,226 INFO L226 Difference]: Without dead ends: 21368 [2024-11-08 16:25:27,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:25:27,232 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 868 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:27,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 643 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 16:25:27,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21368 states. [2024-11-08 16:25:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21368 to 21368. [2024-11-08 16:25:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21368 states, 21366 states have (on average 1.4111204717775905) internal successors, (30150), 21367 states have internal predecessors, (30150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21368 states to 21368 states and 30150 transitions. [2024-11-08 16:25:27,711 INFO L78 Accepts]: Start accepts. Automaton has 21368 states and 30150 transitions. Word has length 98 [2024-11-08 16:25:27,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:27,711 INFO L471 AbstractCegarLoop]: Abstraction has 21368 states and 30150 transitions. [2024-11-08 16:25:27,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 21368 states and 30150 transitions. [2024-11-08 16:25:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:25:27,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:27,715 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:27,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:25:27,715 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:27,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:27,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1565401011, now seen corresponding path program 1 times [2024-11-08 16:25:27,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540767788] [2024-11-08 16:25:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:27,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:25:28,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:28,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540767788] [2024-11-08 16:25:28,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540767788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:28,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:28,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:25:28,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900024133] [2024-11-08 16:25:28,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:28,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:25:28,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:28,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:25:28,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:25:28,053 INFO L87 Difference]: Start difference. First operand 21368 states and 30150 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:31,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:31,911 INFO L93 Difference]: Finished difference Result 28129 states and 39191 transitions. [2024-11-08 16:25:31,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:25:31,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 16:25:31,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:31,947 INFO L225 Difference]: With dead ends: 28129 [2024-11-08 16:25:31,947 INFO L226 Difference]: Without dead ends: 22119 [2024-11-08 16:25:31,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:25:31,958 INFO L432 NwaCegarLoop]: 835 mSDtfsCounter, 1034 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:31,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 1457 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 16:25:31,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22119 states. [2024-11-08 16:25:32,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22119 to 22119. [2024-11-08 16:25:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22119 states, 22117 states have (on average 1.3974318397612695) internal successors, (30907), 22118 states have internal predecessors, (30907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22119 states to 22119 states and 30907 transitions. [2024-11-08 16:25:32,591 INFO L78 Accepts]: Start accepts. Automaton has 22119 states and 30907 transitions. Word has length 99 [2024-11-08 16:25:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:32,593 INFO L471 AbstractCegarLoop]: Abstraction has 22119 states and 30907 transitions. [2024-11-08 16:25:32,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 22119 states and 30907 transitions. [2024-11-08 16:25:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:25:32,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:32,605 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:32,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:25:32,605 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:32,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1168556832, now seen corresponding path program 1 times [2024-11-08 16:25:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057158897] [2024-11-08 16:25:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:32,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:25:32,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:32,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057158897] [2024-11-08 16:25:32,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057158897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:32,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:32,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:32,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901509391] [2024-11-08 16:25:32,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:32,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:32,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:32,919 INFO L87 Difference]: Start difference. First operand 22119 states and 30907 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:35,161 INFO L93 Difference]: Finished difference Result 127799 states and 182019 transitions. [2024-11-08 16:25:35,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:25:35,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:25:35,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:35,273 INFO L225 Difference]: With dead ends: 127799 [2024-11-08 16:25:35,274 INFO L226 Difference]: Without dead ends: 117045 [2024-11-08 16:25:35,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:25:35,299 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 9878 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9878 SdHoareTripleChecker+Valid, 4708 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:35,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9878 Valid, 4708 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:35,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117045 states. [2024-11-08 16:25:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117045 to 35175. [2024-11-08 16:25:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35175 states, 35173 states have (on average 1.404571688511074) internal successors, (49403), 35174 states have internal predecessors, (49403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:36,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35175 states to 35175 states and 49403 transitions. [2024-11-08 16:25:36,692 INFO L78 Accepts]: Start accepts. Automaton has 35175 states and 49403 transitions. Word has length 106 [2024-11-08 16:25:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:36,692 INFO L471 AbstractCegarLoop]: Abstraction has 35175 states and 49403 transitions. [2024-11-08 16:25:36,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 35175 states and 49403 transitions. [2024-11-08 16:25:36,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:25:36,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:36,699 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:36,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:25:36,700 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:36,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:36,700 INFO L85 PathProgramCache]: Analyzing trace with hash 773512672, now seen corresponding path program 1 times [2024-11-08 16:25:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:36,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105489033] [2024-11-08 16:25:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:36,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 16:25:37,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:37,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105489033] [2024-11-08 16:25:37,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105489033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:37,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:37,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:37,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2985443] [2024-11-08 16:25:37,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:37,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:37,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:37,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:37,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:37,331 INFO L87 Difference]: Start difference. First operand 35175 states and 49403 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:40,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:40,262 INFO L93 Difference]: Finished difference Result 143095 states and 203779 transitions. [2024-11-08 16:25:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:25:40,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:25:40,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:40,400 INFO L225 Difference]: With dead ends: 143095 [2024-11-08 16:25:40,401 INFO L226 Difference]: Without dead ends: 127797 [2024-11-08 16:25:40,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:25:40,427 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 9882 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9882 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:40,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9882 Valid, 4628 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127797 states. [2024-11-08 16:25:42,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127797 to 55847. [2024-11-08 16:25:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55847 states, 55845 states have (on average 1.4083803384367446) internal successors, (78651), 55846 states have internal predecessors, (78651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55847 states to 55847 states and 78651 transitions. [2024-11-08 16:25:42,858 INFO L78 Accepts]: Start accepts. Automaton has 55847 states and 78651 transitions. Word has length 106 [2024-11-08 16:25:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:42,858 INFO L471 AbstractCegarLoop]: Abstraction has 55847 states and 78651 transitions. [2024-11-08 16:25:42,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 55847 states and 78651 transitions. [2024-11-08 16:25:42,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:25:42,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:42,866 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:42,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:25:42,866 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:42,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:42,867 INFO L85 PathProgramCache]: Analyzing trace with hash 936427232, now seen corresponding path program 1 times [2024-11-08 16:25:42,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:42,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069275608] [2024-11-08 16:25:42,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:42,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:25:43,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:43,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069275608] [2024-11-08 16:25:43,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069275608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:43,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:43,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:43,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023722029] [2024-11-08 16:25:43,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:43,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:43,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:43,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:43,134 INFO L87 Difference]: Start difference. First operand 55847 states and 78651 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:47,163 INFO L93 Difference]: Finished difference Result 158391 states and 225475 transitions. [2024-11-08 16:25:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:25:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:25:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:47,354 INFO L225 Difference]: With dead ends: 158391 [2024-11-08 16:25:47,354 INFO L226 Difference]: Without dead ends: 143093 [2024-11-08 16:25:47,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:25:47,392 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9905 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9905 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:47,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9905 Valid, 4559 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:25:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143093 states. [2024-11-08 16:25:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143093 to 71143. [2024-11-08 16:25:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71143 states, 71141 states have (on average 1.4105368212423215) internal successors, (100347), 71142 states have internal predecessors, (100347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71143 states to 71143 states and 100347 transitions. [2024-11-08 16:25:50,020 INFO L78 Accepts]: Start accepts. Automaton has 71143 states and 100347 transitions. Word has length 106 [2024-11-08 16:25:50,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:50,021 INFO L471 AbstractCegarLoop]: Abstraction has 71143 states and 100347 transitions. [2024-11-08 16:25:50,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:50,021 INFO L276 IsEmpty]: Start isEmpty. Operand 71143 states and 100347 transitions. [2024-11-08 16:25:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:25:50,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:50,029 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:50,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:25:50,029 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:50,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:50,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1200283616, now seen corresponding path program 1 times [2024-11-08 16:25:50,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:50,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881754381] [2024-11-08 16:25:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:50,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:25:50,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:50,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881754381] [2024-11-08 16:25:50,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881754381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:50,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:50,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424983653] [2024-11-08 16:25:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:50,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:50,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:50,527 INFO L87 Difference]: Start difference. First operand 71143 states and 100347 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:55,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:25:55,489 INFO L93 Difference]: Finished difference Result 173687 states and 247171 transitions. [2024-11-08 16:25:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:25:55,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:25:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:25:55,708 INFO L225 Difference]: With dead ends: 173687 [2024-11-08 16:25:55,708 INFO L226 Difference]: Without dead ends: 158389 [2024-11-08 16:25:55,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:25:55,747 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9996 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9996 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:25:55,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9996 Valid, 4523 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:25:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158389 states. [2024-11-08 16:25:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158389 to 86439. [2024-11-08 16:25:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86439 states, 86437 states have (on average 1.411930076240499) internal successors, (122043), 86438 states have internal predecessors, (122043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86439 states to 86439 states and 122043 transitions. [2024-11-08 16:25:58,940 INFO L78 Accepts]: Start accepts. Automaton has 86439 states and 122043 transitions. Word has length 106 [2024-11-08 16:25:58,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:25:58,941 INFO L471 AbstractCegarLoop]: Abstraction has 86439 states and 122043 transitions. [2024-11-08 16:25:58,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:25:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 86439 states and 122043 transitions. [2024-11-08 16:25:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:25:58,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:25:58,952 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:25:58,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:25:58,952 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:25:58,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:25:58,953 INFO L85 PathProgramCache]: Analyzing trace with hash 223076832, now seen corresponding path program 1 times [2024-11-08 16:25:58,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:25:58,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113121203] [2024-11-08 16:25:58,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:25:58,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:25:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:25:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 16:25:59,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:25:59,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113121203] [2024-11-08 16:25:59,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113121203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:25:59,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:25:59,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:25:59,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682148942] [2024-11-08 16:25:59,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:25:59,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:25:59,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:25:59,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:25:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:25:59,293 INFO L87 Difference]: Start difference. First operand 86439 states and 122043 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:26:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:26:04,798 INFO L93 Difference]: Finished difference Result 188983 states and 268867 transitions. [2024-11-08 16:26:04,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:26:04,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 16:26:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:26:05,039 INFO L225 Difference]: With dead ends: 188983 [2024-11-08 16:26:05,039 INFO L226 Difference]: Without dead ends: 173685 [2024-11-08 16:26:05,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:26:05,073 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 10085 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10085 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:26:05,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10085 Valid, 4541 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:26:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173685 states.