./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label42.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96107ddac20ae25720715e53c2e276b0ff7d668effb9cd422fe5eafc03582006 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:31:18,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:31:18,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:31:18,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:31:18,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:31:18,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:31:18,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:31:18,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:31:18,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:31:18,956 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:31:18,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:31:18,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:31:18,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:31:18,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:31:18,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:31:18,959 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:18,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:18,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:18,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:18,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:31:18,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:31:18,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:31:18,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:31:18,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:18,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:31:18,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:31:18,961 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:31:18,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:31:18,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:31:18,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:31:18,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:31:18,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:31:18,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:31:18,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:31:18,962 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96107ddac20ae25720715e53c2e276b0ff7d668effb9cd422fe5eafc03582006 [2024-11-28 03:31:19,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:31:19,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:31:19,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:31:19,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:31:19,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:31:19,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem17_label42.c [2024-11-28 03:31:22,387 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/data/eac436b87/a3f8e4d191e24309afb1bca979c7328f/FLAGccd82bbfd [2024-11-28 03:31:22,963 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:31:22,964 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/sv-benchmarks/c/eca-rers2012/Problem17_label42.c [2024-11-28 03:31:22,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/data/eac436b87/a3f8e4d191e24309afb1bca979c7328f/FLAGccd82bbfd [2024-11-28 03:31:23,019 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/data/eac436b87/a3f8e4d191e24309afb1bca979c7328f [2024-11-28 03:31:23,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:31:23,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:31:23,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:31:23,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:31:23,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:31:23,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:23" (1/1) ... [2024-11-28 03:31:23,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c85473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:23, skipping insertion in model container [2024-11-28 03:31:23,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:31:23" (1/1) ... [2024-11-28 03:31:23,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:31:23,447 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_cf0da585-779f-42bd-a941-8a8220a9c4b8/sv-benchmarks/c/eca-rers2012/Problem17_label42.c[6070,6083] [2024-11-28 03:31:24,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:31:24,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:31:24,326 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_cf0da585-779f-42bd-a941-8a8220a9c4b8/sv-benchmarks/c/eca-rers2012/Problem17_label42.c[6070,6083] [2024-11-28 03:31:24,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:31:24,779 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:31:24,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24 WrapperNode [2024-11-28 03:31:24,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:31:24,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:31:24,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:31:24,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:31:24,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:24,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,197 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-28 03:31:25,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:31:25,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:31:25,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:31:25,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:31:25,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,446 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]. [2024-11-28 03:31:25,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,589 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:31:25,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:31:25,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:31:25,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:31:25,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (1/1) ... [2024-11-28 03:31:25,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:31:25,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:25,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:31:25,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:31:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:31:25,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:31:25,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:31:25,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:31:25,909 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:31:25,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:31:30,928 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-28 03:31:30,928 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:31:30,968 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:31:30,968 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:31:30,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:30 BoogieIcfgContainer [2024-11-28 03:31:30,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:31:30,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:31:30,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:31:30,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:31:30,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:31:23" (1/3) ... [2024-11-28 03:31:30,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a6bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:31:30, skipping insertion in model container [2024-11-28 03:31:30,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:31:24" (2/3) ... [2024-11-28 03:31:30,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a6bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:31:30, skipping insertion in model container [2024-11-28 03:31:30,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:30" (3/3) ... [2024-11-28 03:31:30,984 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem17_label42.c [2024-11-28 03:31:31,002 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:31:31,005 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem17_label42.c that has 1 procedures, 590 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:31:31,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:31:31,116 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;@b123ddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:31:31,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:31:31,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:31:31,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:31,132 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:31,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:31,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:31,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2102454322, now seen corresponding path program 1 times [2024-11-28 03:31:31,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:31,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125977734] [2024-11-28 03:31:31,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:31,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:31,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:31,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125977734] [2024-11-28 03:31:31,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125977734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:31,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:31,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:31:31,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276410431] [2024-11-28 03:31:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:31,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:31,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:31,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:31,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:31,640 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 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 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:35,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:35,404 INFO L93 Difference]: Finished difference Result 1667 states and 3061 transitions. [2024-11-28 03:31:35,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:31:35,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-28 03:31:35,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:35,424 INFO L225 Difference]: With dead ends: 1667 [2024-11-28 03:31:35,425 INFO L226 Difference]: Without dead ends: 998 [2024-11-28 03:31:35,432 INFO L434 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 [2024-11-28 03:31:35,439 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 505 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:35,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 276 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 03:31:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-28 03:31:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 982. [2024-11-28 03:31:35,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 1.707441386340469) internal successors, (1675), 981 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:35,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1675 transitions. [2024-11-28 03:31:35,571 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1675 transitions. Word has length 40 [2024-11-28 03:31:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:35,571 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1675 transitions. [2024-11-28 03:31:35,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1675 transitions. [2024-11-28 03:31:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 03:31:35,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:35,577 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:31:35,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:31:35,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:35,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:35,580 INFO L85 PathProgramCache]: Analyzing trace with hash 48341583, now seen corresponding path program 1 times [2024-11-28 03:31:35,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:35,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128299953] [2024-11-28 03:31:35,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:35,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:36,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:36,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128299953] [2024-11-28 03:31:36,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128299953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:36,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:36,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:31:36,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900830060] [2024-11-28 03:31:36,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:36,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:36,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:36,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:36,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:36,045 INFO L87 Difference]: Start difference. First operand 982 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:39,062 INFO L93 Difference]: Finished difference Result 2841 states and 4881 transitions. [2024-11-28 03:31:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:31:39,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-28 03:31:39,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:39,073 INFO L225 Difference]: With dead ends: 2841 [2024-11-28 03:31:39,073 INFO L226 Difference]: Without dead ends: 1861 [2024-11-28 03:31:39,076 INFO L434 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 [2024-11-28 03:31:39,081 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:39,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 496 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:31:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2024-11-28 03:31:39,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1857. [2024-11-28 03:31:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.4547413793103448) internal successors, (2700), 1856 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2700 transitions. [2024-11-28 03:31:39,150 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2700 transitions. Word has length 105 [2024-11-28 03:31:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:39,150 INFO L471 AbstractCegarLoop]: Abstraction has 1857 states and 2700 transitions. [2024-11-28 03:31:39,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2700 transitions. [2024-11-28 03:31:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 03:31:39,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:39,155 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:39,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:31:39,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:39,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1523238332, now seen corresponding path program 1 times [2024-11-28 03:31:39,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:39,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958936259] [2024-11-28 03:31:39,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:39,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:39,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958936259] [2024-11-28 03:31:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958936259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:39,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:31:39,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508759907] [2024-11-28 03:31:39,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:39,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:39,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:39,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:39,918 INFO L87 Difference]: Start difference. First operand 1857 states and 2700 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:43,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:43,730 INFO L93 Difference]: Finished difference Result 4591 states and 6640 transitions. [2024-11-28 03:31:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:31:43,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-28 03:31:43,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:43,744 INFO L225 Difference]: With dead ends: 4591 [2024-11-28 03:31:43,744 INFO L226 Difference]: Without dead ends: 2736 [2024-11-28 03:31:43,748 INFO L434 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 [2024-11-28 03:31:43,752 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 352 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:43,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 537 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 03:31:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2024-11-28 03:31:43,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2716. [2024-11-28 03:31:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2715 states have (on average 1.390791896869245) internal successors, (3776), 2715 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:43,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3776 transitions. [2024-11-28 03:31:43,843 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3776 transitions. Word has length 145 [2024-11-28 03:31:43,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:43,844 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 3776 transitions. [2024-11-28 03:31:43,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:43,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3776 transitions. [2024-11-28 03:31:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-28 03:31:43,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:43,847 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:43,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:31:43,848 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:43,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:43,849 INFO L85 PathProgramCache]: Analyzing trace with hash 652145173, now seen corresponding path program 1 times [2024-11-28 03:31:43,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:43,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714086984] [2024-11-28 03:31:43,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:43,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:44,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:44,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714086984] [2024-11-28 03:31:44,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714086984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:44,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:44,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:31:44,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648469380] [2024-11-28 03:31:44,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:44,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:44,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:44,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:44,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:44,149 INFO L87 Difference]: Start difference. First operand 2716 states and 3776 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:46,651 INFO L93 Difference]: Finished difference Result 6709 states and 9429 transitions. [2024-11-28 03:31:46,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:31:46,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-11-28 03:31:46,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:46,666 INFO L225 Difference]: With dead ends: 6709 [2024-11-28 03:31:46,667 INFO L226 Difference]: Without dead ends: 3995 [2024-11-28 03:31:46,670 INFO L434 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 [2024-11-28 03:31:46,671 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 347 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:46,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:31:46,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2024-11-28 03:31:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3142. [2024-11-28 03:31:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 1.274434893346068) internal successors, (4003), 3141 states have internal predecessors, (4003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:46,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 4003 transitions. [2024-11-28 03:31:46,738 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 4003 transitions. Word has length 151 [2024-11-28 03:31:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:46,738 INFO L471 AbstractCegarLoop]: Abstraction has 3142 states and 4003 transitions. [2024-11-28 03:31:46,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 4003 transitions. [2024-11-28 03:31:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 03:31:46,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:46,742 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:31:46,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:31:46,742 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:46,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:46,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1757277791, now seen corresponding path program 1 times [2024-11-28 03:31:46,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:46,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484993076] [2024-11-28 03:31:46,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:47,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:47,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484993076] [2024-11-28 03:31:47,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484993076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:47,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:47,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:31:47,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032735892] [2024-11-28 03:31:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:47,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:31:47,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:47,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:31:47,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:31:47,285 INFO L87 Difference]: Start difference. First operand 3142 states and 4003 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:51,013 INFO L93 Difference]: Finished difference Result 8005 states and 10508 transitions. [2024-11-28 03:31:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:31:51,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2024-11-28 03:31:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:51,030 INFO L225 Difference]: With dead ends: 8005 [2024-11-28 03:31:51,031 INFO L226 Difference]: Without dead ends: 4865 [2024-11-28 03:31:51,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:31:51,037 INFO L435 NwaCegarLoop]: 765 mSDtfsCounter, 1089 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:51,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 894 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 03:31:51,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2024-11-28 03:31:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4852. [2024-11-28 03:31:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4852 states, 4851 states have (on average 1.2665429808286952) internal successors, (6144), 4851 states have internal predecessors, (6144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:51,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 6144 transitions. [2024-11-28 03:31:51,136 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 6144 transitions. Word has length 188 [2024-11-28 03:31:51,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:51,137 INFO L471 AbstractCegarLoop]: Abstraction has 4852 states and 6144 transitions. [2024-11-28 03:31:51,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:51,138 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 6144 transitions. [2024-11-28 03:31:51,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-28 03:31:51,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:51,142 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:31:51,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:31:51,142 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:51,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash -260014896, now seen corresponding path program 1 times [2024-11-28 03:31:51,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:51,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67925996] [2024-11-28 03:31:51,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:51,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 03:31:51,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:51,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67925996] [2024-11-28 03:31:51,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67925996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:51,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:51,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:31:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039852906] [2024-11-28 03:31:51,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:51,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:51,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:51,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:51,337 INFO L87 Difference]: Start difference. First operand 4852 states and 6144 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:54,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:54,218 INFO L93 Difference]: Finished difference Result 12249 states and 15825 transitions. [2024-11-28 03:31:54,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:31:54,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2024-11-28 03:31:54,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:54,235 INFO L225 Difference]: With dead ends: 12249 [2024-11-28 03:31:54,236 INFO L226 Difference]: Without dead ends: 7399 [2024-11-28 03:31:54,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:54,242 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 408 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:54,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 545 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:31:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2024-11-28 03:31:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 4826. [2024-11-28 03:31:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4826 states, 4825 states have (on average 1.2652849740932643) internal successors, (6105), 4825 states have internal predecessors, (6105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:54,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4826 states to 4826 states and 6105 transitions. [2024-11-28 03:31:54,360 INFO L78 Accepts]: Start accepts. Automaton has 4826 states and 6105 transitions. Word has length 194 [2024-11-28 03:31:54,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:54,360 INFO L471 AbstractCegarLoop]: Abstraction has 4826 states and 6105 transitions. [2024-11-28 03:31:54,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:54,361 INFO L276 IsEmpty]: Start isEmpty. Operand 4826 states and 6105 transitions. [2024-11-28 03:31:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 03:31:54,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:54,364 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:54,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:31:54,365 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:54,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -546786268, now seen corresponding path program 1 times [2024-11-28 03:31:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:54,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129382822] [2024-11-28 03:31:54,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:54,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:54,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129382822] [2024-11-28 03:31:54,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129382822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:54,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:54,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:31:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830364303] [2024-11-28 03:31:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:54,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:31:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:54,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:31:54,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:54,687 INFO L87 Difference]: Start difference. First operand 4826 states and 6105 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:58,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:58,143 INFO L93 Difference]: Finished difference Result 13930 states and 17666 transitions. [2024-11-28 03:31:58,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:31:58,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-11-28 03:31:58,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:58,165 INFO L225 Difference]: With dead ends: 13930 [2024-11-28 03:31:58,165 INFO L226 Difference]: Without dead ends: 7828 [2024-11-28 03:31:58,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:31:58,172 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 418 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:58,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 953 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:31:58,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7828 states. [2024-11-28 03:31:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7828 to 7822. [2024-11-28 03:31:58,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7822 states, 7821 states have (on average 1.1792609640710907) internal successors, (9223), 7821 states have internal predecessors, (9223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 9223 transitions. [2024-11-28 03:31:58,296 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 9223 transitions. Word has length 207 [2024-11-28 03:31:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:58,296 INFO L471 AbstractCegarLoop]: Abstraction has 7822 states and 9223 transitions. [2024-11-28 03:31:58,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:31:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 9223 transitions. [2024-11-28 03:31:58,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-28 03:31:58,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:58,302 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:58,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:31:58,304 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:58,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash -304170090, now seen corresponding path program 1 times [2024-11-28 03:31:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:58,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441303344] [2024-11-28 03:31:58,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:58,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 75 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:58,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:58,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441303344] [2024-11-28 03:31:58,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441303344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:58,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167196388] [2024-11-28 03:31:58,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:58,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:58,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:58,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:31:58,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:31:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:58,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:31:58,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 75 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:31:59,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:32:00,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167196388] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:00,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:32:00,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2024-11-28 03:32:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026970434] [2024-11-28 03:32:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:00,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:32:00,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:00,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:32:00,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:32:00,032 INFO L87 Difference]: Start difference. First operand 7822 states and 9223 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:04,050 INFO L93 Difference]: Finished difference Result 26748 states and 31821 transitions. [2024-11-28 03:32:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:32:04,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 260 [2024-11-28 03:32:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:04,093 INFO L225 Difference]: With dead ends: 26748 [2024-11-28 03:32:04,093 INFO L226 Difference]: Without dead ends: 18497 [2024-11-28 03:32:04,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:32:04,102 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 1007 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 1151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1151 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:04,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 147 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1151 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 03:32:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18497 states. [2024-11-28 03:32:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18497 to 18495. [2024-11-28 03:32:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18495 states, 18494 states have (on average 1.161187412133665) internal successors, (21475), 18494 states have internal predecessors, (21475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18495 states to 18495 states and 21475 transitions. [2024-11-28 03:32:04,353 INFO L78 Accepts]: Start accepts. Automaton has 18495 states and 21475 transitions. Word has length 260 [2024-11-28 03:32:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:04,354 INFO L471 AbstractCegarLoop]: Abstraction has 18495 states and 21475 transitions. [2024-11-28 03:32:04,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 18495 states and 21475 transitions. [2024-11-28 03:32:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-28 03:32:04,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:04,364 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:04,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:04,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:04,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:04,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash 701515888, now seen corresponding path program 1 times [2024-11-28 03:32:04,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:04,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019328593] [2024-11-28 03:32:04,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 03:32:04,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:04,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019328593] [2024-11-28 03:32:04,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019328593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:04,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:04,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:04,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37935420] [2024-11-28 03:32:04,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:04,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:04,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:04,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:04,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:04,859 INFO L87 Difference]: Start difference. First operand 18495 states and 21475 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:07,259 INFO L93 Difference]: Finished difference Result 40390 states and 46980 transitions. [2024-11-28 03:32:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:07,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 277 [2024-11-28 03:32:07,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:07,303 INFO L225 Difference]: With dead ends: 40390 [2024-11-28 03:32:07,303 INFO L226 Difference]: Without dead ends: 21471 [2024-11-28 03:32:07,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:07,318 INFO L435 NwaCegarLoop]: 774 mSDtfsCounter, 384 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:07,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 844 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:32:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21471 states. [2024-11-28 03:32:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21471 to 21471. [2024-11-28 03:32:07,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21471 states, 21470 states have (on average 1.1432231020027945) internal successors, (24545), 21470 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21471 states to 21471 states and 24545 transitions. [2024-11-28 03:32:07,596 INFO L78 Accepts]: Start accepts. Automaton has 21471 states and 24545 transitions. Word has length 277 [2024-11-28 03:32:07,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:07,596 INFO L471 AbstractCegarLoop]: Abstraction has 21471 states and 24545 transitions. [2024-11-28 03:32:07,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 21471 states and 24545 transitions. [2024-11-28 03:32:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-28 03:32:07,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:07,604 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:32:07,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:32:07,605 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:07,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:07,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1295125674, now seen corresponding path program 1 times [2024-11-28 03:32:07,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:07,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076567484] [2024-11-28 03:32:07,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:07,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-28 03:32:07,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:07,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076567484] [2024-11-28 03:32:07,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076567484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:07,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:07,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:07,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617955353] [2024-11-28 03:32:07,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:07,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:07,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:07,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:07,987 INFO L87 Difference]: Start difference. First operand 21471 states and 24545 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:10,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:10,767 INFO L93 Difference]: Finished difference Result 52349 states and 59968 transitions. [2024-11-28 03:32:10,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:10,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 312 [2024-11-28 03:32:10,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:10,832 INFO L225 Difference]: With dead ends: 52349 [2024-11-28 03:32:10,832 INFO L226 Difference]: Without dead ends: 30452 [2024-11-28 03:32:10,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:10,848 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 460 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:10,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 327 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:32:10,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30452 states. [2024-11-28 03:32:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30452 to 21468. [2024-11-28 03:32:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21468 states, 21467 states have (on average 1.1420785391531187) internal successors, (24517), 21467 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21468 states to 21468 states and 24517 transitions. [2024-11-28 03:32:11,136 INFO L78 Accepts]: Start accepts. Automaton has 21468 states and 24517 transitions. Word has length 312 [2024-11-28 03:32:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:11,136 INFO L471 AbstractCegarLoop]: Abstraction has 21468 states and 24517 transitions. [2024-11-28 03:32:11,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 21468 states and 24517 transitions. [2024-11-28 03:32:11,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-28 03:32:11,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:11,145 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:32:11,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:32:11,145 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:11,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:11,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1545961588, now seen corresponding path program 1 times [2024-11-28 03:32:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:11,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223373937] [2024-11-28 03:32:11,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:11,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-28 03:32:11,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:11,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223373937] [2024-11-28 03:32:11,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223373937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:11,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:11,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:11,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945005382] [2024-11-28 03:32:11,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:11,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:11,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:11,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:11,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:11,551 INFO L87 Difference]: Start difference. First operand 21468 states and 24517 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:14,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:14,029 INFO L93 Difference]: Finished difference Result 51042 states and 58361 transitions. [2024-11-28 03:32:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:14,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 334 [2024-11-28 03:32:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:14,084 INFO L225 Difference]: With dead ends: 51042 [2024-11-28 03:32:14,084 INFO L226 Difference]: Without dead ends: 29576 [2024-11-28 03:32:14,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:14,097 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 326 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:14,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 843 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:32:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29576 states. [2024-11-28 03:32:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29576 to 27853. [2024-11-28 03:32:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27853 states, 27852 states have (on average 1.128823782852219) internal successors, (31440), 27852 states have internal predecessors, (31440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27853 states to 27853 states and 31440 transitions. [2024-11-28 03:32:14,463 INFO L78 Accepts]: Start accepts. Automaton has 27853 states and 31440 transitions. Word has length 334 [2024-11-28 03:32:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:14,464 INFO L471 AbstractCegarLoop]: Abstraction has 27853 states and 31440 transitions. [2024-11-28 03:32:14,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 27853 states and 31440 transitions. [2024-11-28 03:32:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-28 03:32:14,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:14,470 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:14,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:32:14,470 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:14,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1618781094, now seen corresponding path program 1 times [2024-11-28 03:32:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:14,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025716905] [2024-11-28 03:32:14,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:14,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 355 proven. 73 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-28 03:32:14,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:14,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025716905] [2024-11-28 03:32:14,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025716905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:14,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437516358] [2024-11-28 03:32:14,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:14,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:14,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:14,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:14,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:32:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:15,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:32:15,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 355 proven. 73 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-28 03:32:15,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-28 03:32:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437516358] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:15,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:32:15,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-28 03:32:15,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755568034] [2024-11-28 03:32:15,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:15,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:32:15,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:15,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:32:15,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:15,834 INFO L87 Difference]: Start difference. First operand 27853 states and 31440 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:19,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:19,565 INFO L93 Difference]: Finished difference Result 68931 states and 77945 transitions. [2024-11-28 03:32:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:32:19,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 338 [2024-11-28 03:32:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:19,606 INFO L225 Difference]: With dead ends: 68931 [2024-11-28 03:32:19,606 INFO L226 Difference]: Without dead ends: 40653 [2024-11-28 03:32:19,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 673 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:32:19,629 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 900 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:19,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 189 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 03:32:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40653 states. [2024-11-28 03:32:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40653 to 38524. [2024-11-28 03:32:20,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38524 states, 38523 states have (on average 1.1351400462061625) internal successors, (43729), 38523 states have internal predecessors, (43729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38524 states to 38524 states and 43729 transitions. [2024-11-28 03:32:20,334 INFO L78 Accepts]: Start accepts. Automaton has 38524 states and 43729 transitions. Word has length 338 [2024-11-28 03:32:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:20,334 INFO L471 AbstractCegarLoop]: Abstraction has 38524 states and 43729 transitions. [2024-11-28 03:32:20,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 38524 states and 43729 transitions. [2024-11-28 03:32:20,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-28 03:32:20,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:20,344 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:20,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:32:20,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:20,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:20,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:20,545 INFO L85 PathProgramCache]: Analyzing trace with hash 977737213, now seen corresponding path program 1 times [2024-11-28 03:32:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:20,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852941026] [2024-11-28 03:32:20,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:20,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-28 03:32:21,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:21,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852941026] [2024-11-28 03:32:21,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852941026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:21,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:21,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261263011] [2024-11-28 03:32:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:21,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:21,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:21,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:21,024 INFO L87 Difference]: Start difference. First operand 38524 states and 43729 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:23,587 INFO L93 Difference]: Finished difference Result 82167 states and 93323 transitions. [2024-11-28 03:32:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 352 [2024-11-28 03:32:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:23,618 INFO L225 Difference]: With dead ends: 82167 [2024-11-28 03:32:23,618 INFO L226 Difference]: Without dead ends: 43214 [2024-11-28 03:32:23,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:23,635 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 436 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:23,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 835 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:32:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43214 states. [2024-11-28 03:32:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43214 to 41082. [2024-11-28 03:32:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41082 states, 41081 states have (on average 1.1328107884423455) internal successors, (46537), 41081 states have internal predecessors, (46537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41082 states to 41082 states and 46537 transitions. [2024-11-28 03:32:24,060 INFO L78 Accepts]: Start accepts. Automaton has 41082 states and 46537 transitions. Word has length 352 [2024-11-28 03:32:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:24,060 INFO L471 AbstractCegarLoop]: Abstraction has 41082 states and 46537 transitions. [2024-11-28 03:32:24,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 41082 states and 46537 transitions. [2024-11-28 03:32:24,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-28 03:32:24,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:24,067 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:24,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:32:24,067 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:24,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:24,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1634611038, now seen corresponding path program 1 times [2024-11-28 03:32:24,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:24,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665541388] [2024-11-28 03:32:24,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:24,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-28 03:32:24,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:24,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665541388] [2024-11-28 03:32:24,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665541388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:24,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:24,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:24,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74012095] [2024-11-28 03:32:24,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:24,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:24,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:24,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:24,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:24,495 INFO L87 Difference]: Start difference. First operand 41082 states and 46537 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:26,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:26,572 INFO L93 Difference]: Finished difference Result 86418 states and 98040 transitions. [2024-11-28 03:32:26,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:26,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 383 [2024-11-28 03:32:26,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:26,610 INFO L225 Difference]: With dead ends: 86418 [2024-11-28 03:32:26,610 INFO L226 Difference]: Without dead ends: 44913 [2024-11-28 03:32:26,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:26,631 INFO L435 NwaCegarLoop]: 807 mSDtfsCounter, 401 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:26,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 880 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:32:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44913 states. [2024-11-28 03:32:27,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44913 to 44911. [2024-11-28 03:32:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44911 states, 44910 states have (on average 1.1258517034068136) internal successors, (50562), 44910 states have internal predecessors, (50562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44911 states to 44911 states and 50562 transitions. [2024-11-28 03:32:27,193 INFO L78 Accepts]: Start accepts. Automaton has 44911 states and 50562 transitions. Word has length 383 [2024-11-28 03:32:27,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:27,194 INFO L471 AbstractCegarLoop]: Abstraction has 44911 states and 50562 transitions. [2024-11-28 03:32:27,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 44911 states and 50562 transitions. [2024-11-28 03:32:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-28 03:32:27,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:27,201 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:27,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:32:27,202 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:27,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:27,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2065719755, now seen corresponding path program 1 times [2024-11-28 03:32:27,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:27,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600787291] [2024-11-28 03:32:27,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:27,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-28 03:32:27,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:27,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600787291] [2024-11-28 03:32:27,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600787291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:27,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:27,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:27,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370163002] [2024-11-28 03:32:27,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:27,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:27,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:27,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:27,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:27,594 INFO L87 Difference]: Start difference. First operand 44911 states and 50562 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:30,326 INFO L93 Difference]: Finished difference Result 100497 states and 112916 transitions. [2024-11-28 03:32:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 422 [2024-11-28 03:32:30,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:30,411 INFO L225 Difference]: With dead ends: 100497 [2024-11-28 03:32:30,411 INFO L226 Difference]: Without dead ends: 55159 [2024-11-28 03:32:30,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:30,443 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 488 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:30,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 194 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:32:30,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55159 states. [2024-11-28 03:32:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55159 to 53853. [2024-11-28 03:32:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53853 states, 53852 states have (on average 1.121741068112605) internal successors, (60408), 53852 states have internal predecessors, (60408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53853 states to 53853 states and 60408 transitions. [2024-11-28 03:32:31,232 INFO L78 Accepts]: Start accepts. Automaton has 53853 states and 60408 transitions. Word has length 422 [2024-11-28 03:32:31,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:31,233 INFO L471 AbstractCegarLoop]: Abstraction has 53853 states and 60408 transitions. [2024-11-28 03:32:31,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 53853 states and 60408 transitions. [2024-11-28 03:32:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2024-11-28 03:32:31,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:31,237 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-28 03:32:31,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:32:31,237 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:31,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:31,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1496360823, now seen corresponding path program 1 times [2024-11-28 03:32:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439242747] [2024-11-28 03:32:31,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:31,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-28 03:32:31,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:31,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439242747] [2024-11-28 03:32:31,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439242747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:31,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:31,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:31,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090073371] [2024-11-28 03:32:31,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:31,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:31,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:31,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:31,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:31,819 INFO L87 Difference]: Start difference. First operand 53853 states and 60408 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:34,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:34,283 INFO L93 Difference]: Finished difference Result 125158 states and 140434 transitions. [2024-11-28 03:32:34,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:34,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 440 [2024-11-28 03:32:34,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:34,338 INFO L225 Difference]: With dead ends: 125158 [2024-11-28 03:32:34,338 INFO L226 Difference]: Without dead ends: 67464 [2024-11-28 03:32:34,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:34,355 INFO L435 NwaCegarLoop]: 615 mSDtfsCounter, 446 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:34,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 657 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:32:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67464 states. [2024-11-28 03:32:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67464 to 62342. [2024-11-28 03:32:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62342 states, 62341 states have (on average 1.1151088368810254) internal successors, (69517), 62341 states have internal predecessors, (69517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62342 states to 62342 states and 69517 transitions. [2024-11-28 03:32:35,143 INFO L78 Accepts]: Start accepts. Automaton has 62342 states and 69517 transitions. Word has length 440 [2024-11-28 03:32:35,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:35,144 INFO L471 AbstractCegarLoop]: Abstraction has 62342 states and 69517 transitions. [2024-11-28 03:32:35,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:35,144 INFO L276 IsEmpty]: Start isEmpty. Operand 62342 states and 69517 transitions. [2024-11-28 03:32:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-28 03:32:35,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:35,156 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:35,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:32:35,157 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:35,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:35,157 INFO L85 PathProgramCache]: Analyzing trace with hash -788361170, now seen corresponding path program 1 times [2024-11-28 03:32:35,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:35,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963101208] [2024-11-28 03:32:35,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:35,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:35,837 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2024-11-28 03:32:35,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:35,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963101208] [2024-11-28 03:32:35,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963101208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:35,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:35,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:35,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167864887] [2024-11-28 03:32:35,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:35,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:35,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:35,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:35,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:35,839 INFO L87 Difference]: Start difference. First operand 62342 states and 69517 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:37,987 INFO L93 Difference]: Finished difference Result 130194 states and 145275 transitions. [2024-11-28 03:32:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:37,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 444 [2024-11-28 03:32:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:38,037 INFO L225 Difference]: With dead ends: 130194 [2024-11-28 03:32:38,037 INFO L226 Difference]: Without dead ends: 67423 [2024-11-28 03:32:38,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:38,057 INFO L435 NwaCegarLoop]: 662 mSDtfsCounter, 440 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:38,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 711 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:32:38,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67423 states. [2024-11-28 03:32:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67423 to 60615. [2024-11-28 03:32:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60615 states, 60614 states have (on average 1.1074669218332398) internal successors, (67128), 60614 states have internal predecessors, (67128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60615 states to 60615 states and 67128 transitions. [2024-11-28 03:32:38,750 INFO L78 Accepts]: Start accepts. Automaton has 60615 states and 67128 transitions. Word has length 444 [2024-11-28 03:32:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:38,750 INFO L471 AbstractCegarLoop]: Abstraction has 60615 states and 67128 transitions. [2024-11-28 03:32:38,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 60615 states and 67128 transitions. [2024-11-28 03:32:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-28 03:32:38,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:38,756 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:38,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:32:38,757 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:38,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash 642720953, now seen corresponding path program 1 times [2024-11-28 03:32:38,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:38,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752352143] [2024-11-28 03:32:38,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:38,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-28 03:32:39,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:39,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752352143] [2024-11-28 03:32:39,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752352143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:39,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:39,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:39,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147841848] [2024-11-28 03:32:39,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:39,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:39,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:39,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:39,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:39,549 INFO L87 Difference]: Start difference. First operand 60615 states and 67128 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:41,936 INFO L93 Difference]: Finished difference Result 131454 states and 145577 transitions. [2024-11-28 03:32:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:41,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 475 [2024-11-28 03:32:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:41,992 INFO L225 Difference]: With dead ends: 131454 [2024-11-28 03:32:41,993 INFO L226 Difference]: Without dead ends: 70409 [2024-11-28 03:32:42,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:42,024 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 475 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:42,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 120 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:32:42,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70409 states. [2024-11-28 03:32:42,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70409 to 58886. [2024-11-28 03:32:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58886 states, 58885 states have (on average 1.1044408593020294) internal successors, (65035), 58885 states have internal predecessors, (65035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58886 states to 58886 states and 65035 transitions. [2024-11-28 03:32:42,849 INFO L78 Accepts]: Start accepts. Automaton has 58886 states and 65035 transitions. Word has length 475 [2024-11-28 03:32:42,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:42,850 INFO L471 AbstractCegarLoop]: Abstraction has 58886 states and 65035 transitions. [2024-11-28 03:32:42,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 58886 states and 65035 transitions. [2024-11-28 03:32:42,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-11-28 03:32:42,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:42,860 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:42,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:32:42,860 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:42,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:42,861 INFO L85 PathProgramCache]: Analyzing trace with hash -892559919, now seen corresponding path program 1 times [2024-11-28 03:32:42,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:42,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101086806] [2024-11-28 03:32:42,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-28 03:32:43,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:43,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101086806] [2024-11-28 03:32:43,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101086806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:43,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:43,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:43,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651853624] [2024-11-28 03:32:43,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:43,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:43,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:43,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:43,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:43,550 INFO L87 Difference]: Start difference. First operand 58886 states and 65035 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:45,679 INFO L93 Difference]: Finished difference Result 127985 states and 141202 transitions. [2024-11-28 03:32:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:45,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 483 [2024-11-28 03:32:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:45,747 INFO L225 Difference]: With dead ends: 127985 [2024-11-28 03:32:45,747 INFO L226 Difference]: Without dead ends: 68676 [2024-11-28 03:32:45,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:45,774 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 267 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:45,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 744 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:32:45,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68676 states. [2024-11-28 03:32:46,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68676 to 57575. [2024-11-28 03:32:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57575 states, 57574 states have (on average 1.1018167923020807) internal successors, (63436), 57574 states have internal predecessors, (63436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57575 states to 57575 states and 63436 transitions. [2024-11-28 03:32:46,673 INFO L78 Accepts]: Start accepts. Automaton has 57575 states and 63436 transitions. Word has length 483 [2024-11-28 03:32:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:46,673 INFO L471 AbstractCegarLoop]: Abstraction has 57575 states and 63436 transitions. [2024-11-28 03:32:46,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 57575 states and 63436 transitions. [2024-11-28 03:32:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2024-11-28 03:32:46,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:46,685 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:46,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:32:46,685 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:46,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash 396274606, now seen corresponding path program 1 times [2024-11-28 03:32:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:46,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13377987] [2024-11-28 03:32:46,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:46,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-28 03:32:47,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:47,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13377987] [2024-11-28 03:32:47,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13377987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:47,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:47,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:47,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894743015] [2024-11-28 03:32:47,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:47,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:47,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:47,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:47,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:47,155 INFO L87 Difference]: Start difference. First operand 57575 states and 63436 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:49,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:49,497 INFO L93 Difference]: Finished difference Result 123654 states and 136226 transitions. [2024-11-28 03:32:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:49,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 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 560 [2024-11-28 03:32:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:49,564 INFO L225 Difference]: With dead ends: 123654 [2024-11-28 03:32:49,564 INFO L226 Difference]: Without dead ends: 65656 [2024-11-28 03:32:49,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:49,598 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 475 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:49,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 681 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:32:49,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65656 states. [2024-11-28 03:32:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65656 to 65650. [2024-11-28 03:32:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65650 states, 65649 states have (on average 1.0945178144373866) internal successors, (71854), 65649 states have internal predecessors, (71854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:50,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65650 states to 65650 states and 71854 transitions. [2024-11-28 03:32:50,455 INFO L78 Accepts]: Start accepts. Automaton has 65650 states and 71854 transitions. Word has length 560 [2024-11-28 03:32:50,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:50,455 INFO L471 AbstractCegarLoop]: Abstraction has 65650 states and 71854 transitions. [2024-11-28 03:32:50,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 65650 states and 71854 transitions. [2024-11-28 03:32:50,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-28 03:32:50,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:50,653 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:50,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:32:50,653 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:50,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:50,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1364765501, now seen corresponding path program 1 times [2024-11-28 03:32:50,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:50,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836386850] [2024-11-28 03:32:50,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:50,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-28 03:32:50,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:50,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836386850] [2024-11-28 03:32:50,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836386850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:50,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:50,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:50,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280219388] [2024-11-28 03:32:50,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:50,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:50,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:50,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:50,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:50,914 INFO L87 Difference]: Start difference. First operand 65650 states and 71854 transitions. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:53,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:53,023 INFO L93 Difference]: Finished difference Result 139375 states and 152646 transitions. [2024-11-28 03:32:53,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:53,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 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 697 [2024-11-28 03:32:53,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:53,096 INFO L225 Difference]: With dead ends: 139375 [2024-11-28 03:32:53,096 INFO L226 Difference]: Without dead ends: 73302 [2024-11-28 03:32:53,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:53,131 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 439 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:53,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 330 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:32:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73302 states. [2024-11-28 03:32:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73302 to 68195. [2024-11-28 03:32:53,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68195 states, 68194 states have (on average 1.0906238085462063) internal successors, (74374), 68194 states have internal predecessors, (74374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68195 states to 68195 states and 74374 transitions. [2024-11-28 03:32:53,971 INFO L78 Accepts]: Start accepts. Automaton has 68195 states and 74374 transitions. Word has length 697 [2024-11-28 03:32:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:53,971 INFO L471 AbstractCegarLoop]: Abstraction has 68195 states and 74374 transitions. [2024-11-28 03:32:53,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:53,971 INFO L276 IsEmpty]: Start isEmpty. Operand 68195 states and 74374 transitions. [2024-11-28 03:32:54,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-11-28 03:32:54,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:54,003 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:54,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:32:54,003 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:54,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:54,004 INFO L85 PathProgramCache]: Analyzing trace with hash -309735421, now seen corresponding path program 1 times [2024-11-28 03:32:54,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:54,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326841915] [2024-11-28 03:32:54,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:54,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 1014 trivial. 0 not checked. [2024-11-28 03:32:54,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:54,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326841915] [2024-11-28 03:32:54,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326841915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:54,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:54,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:32:54,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925879288] [2024-11-28 03:32:54,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:54,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:54,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:54,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:54,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:54,756 INFO L87 Difference]: Start difference. First operand 68195 states and 74374 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:57,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:57,574 INFO L93 Difference]: Finished difference Result 140640 states and 153541 transitions. [2024-11-28 03:32:57,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:32:57,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 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 805 [2024-11-28 03:32:57,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:57,632 INFO L225 Difference]: With dead ends: 140640 [2024-11-28 03:32:57,632 INFO L226 Difference]: Without dead ends: 72447 [2024-11-28 03:32:57,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:57,650 INFO L435 NwaCegarLoop]: 670 mSDtfsCounter, 453 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:57,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 714 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:32:57,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72447 states. [2024-11-28 03:32:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72447 to 65637. [2024-11-28 03:32:58,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65637 states, 65636 states have (on average 1.078874398196112) internal successors, (70813), 65636 states have internal predecessors, (70813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65637 states to 65637 states and 70813 transitions. [2024-11-28 03:32:58,594 INFO L78 Accepts]: Start accepts. Automaton has 65637 states and 70813 transitions. Word has length 805 [2024-11-28 03:32:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:58,595 INFO L471 AbstractCegarLoop]: Abstraction has 65637 states and 70813 transitions. [2024-11-28 03:32:58,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:32:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 65637 states and 70813 transitions. [2024-11-28 03:32:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2024-11-28 03:32:58,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:58,635 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:32:58,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:32:58,636 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:58,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash 545736305, now seen corresponding path program 1 times [2024-11-28 03:32:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:58,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112840708] [2024-11-28 03:32:58,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:58,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2024-11-28 03:32:59,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:59,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112840708] [2024-11-28 03:32:59,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112840708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:59,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:59,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:32:59,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389224754] [2024-11-28 03:32:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:59,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:32:59,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:59,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:32:59,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:32:59,314 INFO L87 Difference]: Start difference. First operand 65637 states and 70813 transitions. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 2 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:00,750 INFO L93 Difference]: Finished difference Result 126145 states and 136027 transitions. [2024-11-28 03:33:00,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:00,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 2 states have internal predecessors, (363), 0 states have call successors, (0), 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 838 [2024-11-28 03:33:00,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:00,804 INFO L225 Difference]: With dead ends: 126145 [2024-11-28 03:33:00,804 INFO L226 Difference]: Without dead ends: 60510 [2024-11-28 03:33:00,833 INFO L434 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 [2024-11-28 03:33:00,834 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 358 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:00,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 70 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:33:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60510 states. [2024-11-28 03:33:01,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60510 to 60508. [2024-11-28 03:33:01,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60508 states, 60507 states have (on average 1.0776108549424033) internal successors, (65203), 60507 states have internal predecessors, (65203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60508 states to 60508 states and 65203 transitions. [2024-11-28 03:33:01,628 INFO L78 Accepts]: Start accepts. Automaton has 60508 states and 65203 transitions. Word has length 838 [2024-11-28 03:33:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:01,629 INFO L471 AbstractCegarLoop]: Abstraction has 60508 states and 65203 transitions. [2024-11-28 03:33:01,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 2 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 60508 states and 65203 transitions. [2024-11-28 03:33:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1434 [2024-11-28 03:33:01,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:01,675 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:33:01,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:33:01,676 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:01,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1461884006, now seen corresponding path program 1 times [2024-11-28 03:33:01,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207417769] [2024-11-28 03:33:01,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2526 backedges. 1840 proven. 0 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2024-11-28 03:33:02,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:02,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207417769] [2024-11-28 03:33:02,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207417769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:02,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:02,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971788213] [2024-11-28 03:33:02,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:02,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:02,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:02,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:02,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:02,676 INFO L87 Difference]: Start difference. First operand 60508 states and 65203 transitions. Second operand has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:04,620 INFO L93 Difference]: Finished difference Result 119736 states and 128970 transitions. [2024-11-28 03:33:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 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 1433 [2024-11-28 03:33:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:04,679 INFO L225 Difference]: With dead ends: 119736 [2024-11-28 03:33:04,679 INFO L226 Difference]: Without dead ends: 59230 [2024-11-28 03:33:04,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:04,711 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 109 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:04,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 650 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:33:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59230 states. [2024-11-28 03:33:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59230 to 58378. [2024-11-28 03:33:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58378 states, 58377 states have (on average 1.0646316186169211) internal successors, (62150), 58377 states have internal predecessors, (62150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58378 states to 58378 states and 62150 transitions. [2024-11-28 03:33:05,537 INFO L78 Accepts]: Start accepts. Automaton has 58378 states and 62150 transitions. Word has length 1433 [2024-11-28 03:33:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:05,537 INFO L471 AbstractCegarLoop]: Abstraction has 58378 states and 62150 transitions. [2024-11-28 03:33:05,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 58378 states and 62150 transitions. [2024-11-28 03:33:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1502 [2024-11-28 03:33:05,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:05,589 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:05,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:33:05,589 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:05,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:05,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1577584933, now seen corresponding path program 1 times [2024-11-28 03:33:05,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:05,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813731014] [2024-11-28 03:33:05,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:05,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 2077 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2024-11-28 03:33:06,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:06,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813731014] [2024-11-28 03:33:06,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813731014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:06,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:06,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:06,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948383623] [2024-11-28 03:33:06,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:06,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:06,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:06,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:06,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:06,919 INFO L87 Difference]: Start difference. First operand 58378 states and 62150 transitions. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:08,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:08,983 INFO L93 Difference]: Finished difference Result 120171 states and 127888 transitions. [2024-11-28 03:33:08,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:08,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 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 1501 [2024-11-28 03:33:08,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:09,036 INFO L225 Difference]: With dead ends: 120171 [2024-11-28 03:33:09,036 INFO L226 Difference]: Without dead ends: 61795 [2024-11-28 03:33:09,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:09,061 INFO L435 NwaCegarLoop]: 646 mSDtfsCounter, 89 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:09,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 681 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:33:09,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61795 states. [2024-11-28 03:33:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61795 to 60506. [2024-11-28 03:33:09,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60506 states, 60505 states have (on average 1.063217915874721) internal successors, (64330), 60505 states have internal predecessors, (64330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60506 states to 60506 states and 64330 transitions. [2024-11-28 03:33:09,960 INFO L78 Accepts]: Start accepts. Automaton has 60506 states and 64330 transitions. Word has length 1501 [2024-11-28 03:33:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:09,961 INFO L471 AbstractCegarLoop]: Abstraction has 60506 states and 64330 transitions. [2024-11-28 03:33:09,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand 60506 states and 64330 transitions. [2024-11-28 03:33:10,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1553 [2024-11-28 03:33:10,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:10,051 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:10,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:33:10,051 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:10,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:10,052 INFO L85 PathProgramCache]: Analyzing trace with hash -37717548, now seen corresponding path program 1 times [2024-11-28 03:33:10,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:10,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252224239] [2024-11-28 03:33:10,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:10,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:11,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1361 proven. 0 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2024-11-28 03:33:11,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:11,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252224239] [2024-11-28 03:33:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252224239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:11,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:11,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968418621] [2024-11-28 03:33:11,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:11,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:11,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:11,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:11,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:11,919 INFO L87 Difference]: Start difference. First operand 60506 states and 64330 transitions. Second operand has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:15,202 INFO L93 Difference]: Finished difference Result 139746 states and 148086 transitions. [2024-11-28 03:33:15,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:15,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 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 1552 [2024-11-28 03:33:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:15,205 INFO L225 Difference]: With dead ends: 139746 [2024-11-28 03:33:15,205 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:33:15,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:15,246 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 568 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:15,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 92 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:33:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:33:15,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:33:15,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:33:15,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1552 [2024-11-28 03:33:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:15,249 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:33:15,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:33:15,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:33:15,253 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:33:15,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:33:15,257 INFO L422 BasicCegarLoop]: Path program 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] [2024-11-28 03:33:15,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:33:25,438 WARN L286 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 702 DAG size of output: 680 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 03:33:29,024 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:33:29,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:33:29 BoogieIcfgContainer [2024-11-28 03:33:29,046 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:33:29,047 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:33:29,047 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:33:29,047 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:33:29,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:31:30" (3/4) ... [2024-11-28 03:33:29,054 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:33:29,103 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 03:33:29,106 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:33:29,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:33:29,112 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:33:29,410 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:33:29,411 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:33:29,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:33:29,415 INFO L158 Benchmark]: Toolchain (without parser) took 126386.75ms. Allocated memory was 142.6MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 110.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 638.9MB. Max. memory is 16.1GB. [2024-11-28 03:33:29,415 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:33:29,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1755.89ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 110.5MB in the beginning and 380.4MB in the end (delta: -269.9MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2024-11-28 03:33:29,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 415.27ms. Allocated memory is still 427.8MB. Free memory was 380.4MB in the beginning and 319.6MB in the end (delta: 60.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-28 03:33:29,416 INFO L158 Benchmark]: Boogie Preprocessor took 551.00ms. Allocated memory is still 427.8MB. Free memory was 319.6MB in the beginning and 220.5MB in the end (delta: 99.1MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2024-11-28 03:33:29,416 INFO L158 Benchmark]: RCFGBuilder took 5215.98ms. Allocated memory is still 427.8MB. Free memory was 220.5MB in the beginning and 306.5MB in the end (delta: -86.0MB). Peak memory consumption was 143.6MB. Max. memory is 16.1GB. [2024-11-28 03:33:29,416 INFO L158 Benchmark]: TraceAbstraction took 118075.53ms. Allocated memory was 427.8MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 306.5MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2024-11-28 03:33:29,416 INFO L158 Benchmark]: Witness Printer took 363.98ms. Allocated memory is still 2.2GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 03:33:29,418 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1755.89ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 110.5MB in the beginning and 380.4MB in the end (delta: -269.9MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 415.27ms. Allocated memory is still 427.8MB. Free memory was 380.4MB in the beginning and 319.6MB in the end (delta: 60.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 551.00ms. Allocated memory is still 427.8MB. Free memory was 319.6MB in the beginning and 220.5MB in the end (delta: 99.1MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. * RCFGBuilder took 5215.98ms. Allocated memory is still 427.8MB. Free memory was 220.5MB in the beginning and 306.5MB in the end (delta: -86.0MB). Peak memory consumption was 143.6MB. Max. memory is 16.1GB. * TraceAbstraction took 118075.53ms. Allocated memory was 427.8MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 306.5MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. * Witness Printer took 363.98ms. Allocated memory is still 2.2GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 138]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 104.2s, OverallIterations: 26, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 72.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12047 SdHoareTripleChecker+Valid, 63.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12047 mSDsluCounter, 14001 SdHoareTripleChecker+Invalid, 54.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1491 mSDsCounter, 7704 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35783 IncrementalHoareTripleChecker+Invalid, 43487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7704 mSolverCounterUnsat, 12510 mSDtfsCounter, 35783 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1268 GetRequests, 1231 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68195occurred in iteration=21, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 68383 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 13534 NumberOfCodeBlocks, 13534 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 14102 ConstructedInterpolants, 0 QuantifiedInterpolants, 25590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 851 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 30 InterpolantComputations, 26 PerfectInterpolantSequences, 19001/19311 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2590]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a24 == 3) && (a21 <= 124)) && (a26 <= 217)) && (((long long) a14 + 114) <= 0)) || (((a24 == 3) && (a21 <= 124)) && (a26 <= 123))) || (((a21 <= 124) && (((long long) a14 + 182) <= 0)) && (a24 == 2))) || ((((a21 <= 124) && (((((long long) a26 * 9) >= 0) ? (((long long) a26 * 9) / 10) : ((((long long) a26 * 9) / 10) - 1)) <= 554786)) && (a24 == 2)) && (((long long) a14 + 114) <= 0))) || ((((a24 == 3) && (a21 <= 124)) && (((long long) a14 + 183) <= 0)) && (a28 <= 599997))) || (((a21 <= 124) && (a24 == 2)) && (a28 <= 599997))) || (((((a21 <= 124) && (a24 <= 1)) && (((((long long) a26 * 9) >= 0) ? (((long long) a26 * 9) / 10) : ((((long long) a26 * 9) / 10) - 1)) <= 554786)) && (218 <= a26)) && (a28 <= 599997))) || ((((a24 == 3) && (a21 <= 124)) && (((long long) a14 + 114) <= 0)) && (a28 <= 133))) || (((a21 <= 124) && (a24 <= 1)) && (a28 <= 297))) || (((a26 <= 217) && (a24 <= 1)) && (a28 <= 300))) || (((((a24 == 3) && (a21 <= 124)) && (((long long) a14 + 182) <= 0)) && (((((long long) a26 * 9) >= 0) ? (((long long) a26 * 9) / 10) : ((((long long) a26 * 9) / 10) - 1)) <= 555071)) && (a28 <= 300))) || ((a24 <= 1) && (a26 <= 123))) || (((a26 <= 217) && (a24 <= 1)) && (0 <= ((long long) a14 + 83)))) || ((((a21 <= 124) && (a24 == 2)) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113)))) || ((a24 <= 1) && (((long long) a14 + 114) <= 0))) || (((a21 <= 124) && (a24 == 2)) && (a26 <= 123))) || (((((long long) a14 + 85) <= 0) && (a24 <= 1)) && (218 <= a26))) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:33:29,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf0da585-779f-42bd-a941-8a8220a9c4b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE