./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/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_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/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_08adc5b2-e655-4b31-a893-985e77d1facf/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 8ffc122c88e19fa60ea50d5017c7f06bb9f1769c7e82b2428d0bede2356237c3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:53:14,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:53:14,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:53:14,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:53:14,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:53:14,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:53:14,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:53:14,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:53:14,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:53:14,480 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:53:14,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:53:14,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:53:14,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:53:14,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:53:14,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:53:14,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:53:14,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:53:14,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:53:14,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:53:14,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:53:14,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:53:14,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:53:14,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:53:14,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:53:14,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:53:14,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:53:14,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:53:14,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:53:14,483 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:53:14,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:14,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:14,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:14,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:14,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:53:14,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:14,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:14,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:14,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:14,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:53:14,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:53:14,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:53:14,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:53:14,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:53:14,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:53:14,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:53:14,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:53:14,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:53:14,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:53:14,486 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_08adc5b2-e655-4b31-a893-985e77d1facf/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 -> 8ffc122c88e19fa60ea50d5017c7f06bb9f1769c7e82b2428d0bede2356237c3 [2024-11-28 04:53:14,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:53:14,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:53:14,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:53:14,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:53:14,812 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:53:14,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-28 04:53:18,262 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/data/412987f2d/0e84afc1ae4b4a6cbeb71fefd5e1cd14/FLAG7f74eb2b0 [2024-11-28 04:53:18,662 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:53:18,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-28 04:53:18,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/data/412987f2d/0e84afc1ae4b4a6cbeb71fefd5e1cd14/FLAG7f74eb2b0 [2024-11-28 04:53:18,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/data/412987f2d/0e84afc1ae4b4a6cbeb71fefd5e1cd14 [2024-11-28 04:53:18,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:53:18,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:53:18,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:18,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:53:18,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:53:18,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:18" (1/1) ... [2024-11-28 04:53:18,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fb6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:18, skipping insertion in model container [2024-11-28 04:53:18,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:18" (1/1) ... [2024-11-28 04:53:18,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:53:19,126 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_08adc5b2-e655-4b31-a893-985e77d1facf/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5807,5820] [2024-11-28 04:53:19,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:19,183 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:53:19,249 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_08adc5b2-e655-4b31-a893-985e77d1facf/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5807,5820] [2024-11-28 04:53:19,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:19,308 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:53:19,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19 WrapperNode [2024-11-28 04:53:19,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:19,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:19,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:53:19,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:53:19,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,378 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 452 [2024-11-28 04:53:19,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:19,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:53:19,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:53:19,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:53:19,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,396 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,429 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 04:53:19,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,452 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:53:19,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:53:19,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:53:19,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:53:19,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (1/1) ... [2024-11-28 04:53:19,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:19,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:19,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:53:19,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:53:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:53:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:53:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:53:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:53:19,741 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:53:19,743 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:53:20,474 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-28 04:53:20,474 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:53:20,495 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:53:20,495 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:53:20,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:20 BoogieIcfgContainer [2024-11-28 04:53:20,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:53:20,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:53:20,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:53:20,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:53:20,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:53:18" (1/3) ... [2024-11-28 04:53:20,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710b7432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:20, skipping insertion in model container [2024-11-28 04:53:20,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:19" (2/3) ... [2024-11-28 04:53:20,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710b7432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:20, skipping insertion in model container [2024-11-28 04:53:20,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:20" (3/3) ... [2024-11-28 04:53:20,513 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-28 04:53:20,534 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:53:20,558 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c that has 1 procedures, 99 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:53:20,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:53:20,647 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;@25030067, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:53:20,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:53:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 97 states have (on average 1.7216494845360826) internal successors, (167), 98 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 04:53:20,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:53:20,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:20,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:20,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:20,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:20,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1055716622, now seen corresponding path program 1 times [2024-11-28 04:53:20,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:20,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924606331] [2024-11-28 04:53:20,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:20,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:21,377 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 04:53:21,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924606331] [2024-11-28 04:53:21,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924606331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:21,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:21,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:21,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594006281] [2024-11-28 04:53:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:21,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:21,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:21,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:21,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:21,424 INFO L87 Difference]: Start difference. First operand has 99 states, 97 states have (on average 1.7216494845360826) internal successors, (167), 98 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) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 04:53:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:21,515 INFO L93 Difference]: Finished difference Result 221 states and 356 transitions. [2024-11-28 04:53:21,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:21,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-28 04:53:21,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:21,532 INFO L225 Difference]: With dead ends: 221 [2024-11-28 04:53:21,532 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 04:53:21,540 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 04:53:21,543 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 108 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:21,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 337 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:21,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 04:53:21,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-28 04:53:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.4625850340136055) internal successors, (215), 147 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 04:53:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 215 transitions. [2024-11-28 04:53:21,612 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 215 transitions. Word has length 60 [2024-11-28 04:53:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:21,613 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 215 transitions. [2024-11-28 04:53:21,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 04:53:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2024-11-28 04:53:21,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 04:53:21,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:21,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:21,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:53:21,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:21,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash 160325981, now seen corresponding path program 1 times [2024-11-28 04:53:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860056105] [2024-11-28 04:53:21,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:22,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:22,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860056105] [2024-11-28 04:53:22,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860056105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:22,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:22,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:22,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342831750] [2024-11-28 04:53:22,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:22,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:22,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:22,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:22,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:22,019 INFO L87 Difference]: Start difference. First operand 148 states and 215 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 04:53:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:22,083 INFO L93 Difference]: Finished difference Result 360 states and 551 transitions. [2024-11-28 04:53:22,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:22,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-28 04:53:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:22,087 INFO L225 Difference]: With dead ends: 360 [2024-11-28 04:53:22,087 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:53:22,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:22,093 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 78 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:22,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 287 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:53:22,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 244. [2024-11-28 04:53:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 1.5102880658436213) internal successors, (367), 243 states have internal predecessors, (367), 0 states have call successors, (0), 0 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 04:53:22,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 367 transitions. [2024-11-28 04:53:22,125 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 367 transitions. Word has length 61 [2024-11-28 04:53:22,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:22,126 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 367 transitions. [2024-11-28 04:53:22,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 04:53:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 367 transitions. [2024-11-28 04:53:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:53:22,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:22,132 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, 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 04:53:22,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:53:22,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:22,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:22,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2130731763, now seen corresponding path program 1 times [2024-11-28 04:53:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:22,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644904732] [2024-11-28 04:53:22,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:22,398 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 04:53:22,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:22,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644904732] [2024-11-28 04:53:22,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644904732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:22,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:22,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:22,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641028195] [2024-11-28 04:53:22,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:22,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:22,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:22,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:22,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:22,403 INFO L87 Difference]: Start difference. First operand 244 states and 367 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:22,459 INFO L93 Difference]: Finished difference Result 632 states and 981 transitions. [2024-11-28 04:53:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:22,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-28 04:53:22,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:22,468 INFO L225 Difference]: With dead ends: 632 [2024-11-28 04:53:22,468 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 04:53:22,469 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 04:53:22,470 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:22,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 283 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:22,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 04:53:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 420. [2024-11-28 04:53:22,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.5346062052505967) internal successors, (643), 419 states have internal predecessors, (643), 0 states have call successors, (0), 0 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 04:53:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 643 transitions. [2024-11-28 04:53:22,510 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 643 transitions. Word has length 62 [2024-11-28 04:53:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:22,510 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 643 transitions. [2024-11-28 04:53:22,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 643 transitions. [2024-11-28 04:53:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:53:22,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:22,512 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:22,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:53:22,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:22,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash 2078468845, now seen corresponding path program 1 times [2024-11-28 04:53:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36711064] [2024-11-28 04:53:22,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:22,763 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 04:53:22,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36711064] [2024-11-28 04:53:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36711064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:22,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:22,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746620895] [2024-11-28 04:53:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:22,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:22,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:22,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:22,769 INFO L87 Difference]: Start difference. First operand 420 states and 643 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:22,826 INFO L93 Difference]: Finished difference Result 1128 states and 1757 transitions. [2024-11-28 04:53:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:22,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-28 04:53:22,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:22,834 INFO L225 Difference]: With dead ends: 1128 [2024-11-28 04:53:22,835 INFO L226 Difference]: Without dead ends: 742 [2024-11-28 04:53:22,838 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 04:53:22,840 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 68 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:22,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 279 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:22,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-28 04:53:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 740. [2024-11-28 04:53:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 1.5412719891745603) internal successors, (1139), 739 states have internal predecessors, (1139), 0 states have call successors, (0), 0 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 04:53:22,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1139 transitions. [2024-11-28 04:53:22,901 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1139 transitions. Word has length 63 [2024-11-28 04:53:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:22,902 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1139 transitions. [2024-11-28 04:53:22,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1139 transitions. [2024-11-28 04:53:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 04:53:22,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:22,903 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:22,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:53:22,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:22,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:22,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1380036385, now seen corresponding path program 1 times [2024-11-28 04:53:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:22,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451370235] [2024-11-28 04:53:22,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:22,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:23,340 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 04:53:23,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:23,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451370235] [2024-11-28 04:53:23,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451370235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:23,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:23,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:23,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689157404] [2024-11-28 04:53:23,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:23,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:23,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:23,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:23,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:23,344 INFO L87 Difference]: Start difference. First operand 740 states and 1139 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 04:53:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:23,878 INFO L93 Difference]: Finished difference Result 7800 states and 12189 transitions. [2024-11-28 04:53:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:53:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-28 04:53:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:23,919 INFO L225 Difference]: With dead ends: 7800 [2024-11-28 04:53:23,919 INFO L226 Difference]: Without dead ends: 7094 [2024-11-28 04:53:23,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:53:23,923 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1198 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:23,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 1762 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:53:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7094 states. [2024-11-28 04:53:24,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7094 to 1444. [2024-11-28 04:53:24,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.5322245322245323) internal successors, (2211), 1443 states have internal predecessors, (2211), 0 states have call successors, (0), 0 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 04:53:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2211 transitions. [2024-11-28 04:53:24,077 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2211 transitions. Word has length 64 [2024-11-28 04:53:24,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:24,079 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 2211 transitions. [2024-11-28 04:53:24,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 04:53:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2211 transitions. [2024-11-28 04:53:24,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:53:24,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:24,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:24,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:53:24,084 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:24,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash 8107643, now seen corresponding path program 1 times [2024-11-28 04:53:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:24,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13629397] [2024-11-28 04:53:24,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:24,358 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 04:53:24,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:24,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13629397] [2024-11-28 04:53:24,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13629397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:24,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:24,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:24,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379443197] [2024-11-28 04:53:24,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:24,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:24,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:24,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:24,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:24,362 INFO L87 Difference]: Start difference. First operand 1444 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:24,432 INFO L93 Difference]: Finished difference Result 4088 states and 6261 transitions. [2024-11-28 04:53:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-28 04:53:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:24,445 INFO L225 Difference]: With dead ends: 4088 [2024-11-28 04:53:24,447 INFO L226 Difference]: Without dead ends: 2678 [2024-11-28 04:53:24,453 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 04:53:24,457 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 58 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:24,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 221 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:24,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2024-11-28 04:53:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2644. [2024-11-28 04:53:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2643 states have (on average 1.5024593265228907) internal successors, (3971), 2643 states have internal predecessors, (3971), 0 states have call successors, (0), 0 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 04:53:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3971 transitions. [2024-11-28 04:53:24,556 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3971 transitions. Word has length 66 [2024-11-28 04:53:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:24,558 INFO L471 AbstractCegarLoop]: Abstraction has 2644 states and 3971 transitions. [2024-11-28 04:53:24,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3971 transitions. [2024-11-28 04:53:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:53:24,560 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:24,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:24,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:53:24,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:24,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash 29110298, now seen corresponding path program 1 times [2024-11-28 04:53:24,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:24,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467626350] [2024-11-28 04:53:24,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:24,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:25,223 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 04:53:25,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:25,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467626350] [2024-11-28 04:53:25,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467626350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:25,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:25,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705194704] [2024-11-28 04:53:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:25,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:25,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:25,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:25,228 INFO L87 Difference]: Start difference. First operand 2644 states and 3971 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:25,600 INFO L93 Difference]: Finished difference Result 5256 states and 7909 transitions. [2024-11-28 04:53:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:25,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-28 04:53:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:25,614 INFO L225 Difference]: With dead ends: 5256 [2024-11-28 04:53:25,614 INFO L226 Difference]: Without dead ends: 2646 [2024-11-28 04:53:25,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:53:25,621 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 86 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:25,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 600 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2024-11-28 04:53:25,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2644. [2024-11-28 04:53:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2643 states have (on average 1.4903518728717366) internal successors, (3939), 2643 states have internal predecessors, (3939), 0 states have call successors, (0), 0 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 04:53:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3939 transitions. [2024-11-28 04:53:25,724 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3939 transitions. Word has length 66 [2024-11-28 04:53:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:25,725 INFO L471 AbstractCegarLoop]: Abstraction has 2644 states and 3939 transitions. [2024-11-28 04:53:25,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3939 transitions. [2024-11-28 04:53:25,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:53:25,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:25,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:25,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:53:25,727 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:25,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:25,729 INFO L85 PathProgramCache]: Analyzing trace with hash 849093681, now seen corresponding path program 1 times [2024-11-28 04:53:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:25,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885401324] [2024-11-28 04:53:25,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:25,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:25,872 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 04:53:25,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:25,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885401324] [2024-11-28 04:53:25,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885401324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:25,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:25,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:25,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875643873] [2024-11-28 04:53:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:25,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:25,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:25,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:25,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:25,876 INFO L87 Difference]: Start difference. First operand 2644 states and 3939 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:25,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:25,929 INFO L93 Difference]: Finished difference Result 5147 states and 7753 transitions. [2024-11-28 04:53:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:25,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 04:53:25,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:25,945 INFO L225 Difference]: With dead ends: 5147 [2024-11-28 04:53:25,945 INFO L226 Difference]: Without dead ends: 3736 [2024-11-28 04:53:25,947 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 04:53:25,948 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 85 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:25,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 299 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2024-11-28 04:53:26,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3734. [2024-11-28 04:53:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3733 states have (on average 1.4886150549156174) internal successors, (5557), 3733 states have internal predecessors, (5557), 0 states have call successors, (0), 0 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 04:53:26,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5557 transitions. [2024-11-28 04:53:26,077 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5557 transitions. Word has length 67 [2024-11-28 04:53:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:26,077 INFO L471 AbstractCegarLoop]: Abstraction has 3734 states and 5557 transitions. [2024-11-28 04:53:26,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5557 transitions. [2024-11-28 04:53:26,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:53:26,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:26,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:26,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:53:26,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:26,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash 900509886, now seen corresponding path program 1 times [2024-11-28 04:53:26,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:26,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519478841] [2024-11-28 04:53:26,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:26,254 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 04:53:26,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:26,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519478841] [2024-11-28 04:53:26,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519478841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:26,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:26,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:26,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849757510] [2024-11-28 04:53:26,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:26,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:26,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:26,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:26,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:26,258 INFO L87 Difference]: Start difference. First operand 3734 states and 5557 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:26,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:26,426 INFO L93 Difference]: Finished difference Result 7432 states and 11078 transitions. [2024-11-28 04:53:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:26,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 04:53:26,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:26,440 INFO L225 Difference]: With dead ends: 7432 [2024-11-28 04:53:26,441 INFO L226 Difference]: Without dead ends: 3734 [2024-11-28 04:53:26,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:26,447 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 296 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:26,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 117 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2024-11-28 04:53:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3734. [2024-11-28 04:53:26,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3733 states have (on average 1.4757567639967855) internal successors, (5509), 3733 states have internal predecessors, (5509), 0 states have call successors, (0), 0 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 04:53:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5509 transitions. [2024-11-28 04:53:26,575 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5509 transitions. Word has length 67 [2024-11-28 04:53:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:26,576 INFO L471 AbstractCegarLoop]: Abstraction has 3734 states and 5509 transitions. [2024-11-28 04:53:26,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5509 transitions. [2024-11-28 04:53:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:53:26,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:26,577 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:26,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:53:26,577 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:26,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:26,579 INFO L85 PathProgramCache]: Analyzing trace with hash 371219385, now seen corresponding path program 1 times [2024-11-28 04:53:26,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:26,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056863489] [2024-11-28 04:53:26,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:26,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:26,751 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 04:53:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056863489] [2024-11-28 04:53:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056863489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:26,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823939415] [2024-11-28 04:53:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:26,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:26,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:26,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:26,753 INFO L87 Difference]: Start difference. First operand 3734 states and 5509 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:26,910 INFO L93 Difference]: Finished difference Result 7432 states and 10982 transitions. [2024-11-28 04:53:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:26,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 04:53:26,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:26,930 INFO L225 Difference]: With dead ends: 7432 [2024-11-28 04:53:26,930 INFO L226 Difference]: Without dead ends: 3734 [2024-11-28 04:53:26,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:26,937 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 332 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:26,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 93 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2024-11-28 04:53:27,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3734. [2024-11-28 04:53:27,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3733 states have (on average 1.4628984730779533) internal successors, (5461), 3733 states have internal predecessors, (5461), 0 states have call successors, (0), 0 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 04:53:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5461 transitions. [2024-11-28 04:53:27,087 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5461 transitions. Word has length 67 [2024-11-28 04:53:27,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:27,087 INFO L471 AbstractCegarLoop]: Abstraction has 3734 states and 5461 transitions. [2024-11-28 04:53:27,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5461 transitions. [2024-11-28 04:53:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:53:27,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:27,089 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:27,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:53:27,089 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:27,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:27,091 INFO L85 PathProgramCache]: Analyzing trace with hash -391644322, now seen corresponding path program 1 times [2024-11-28 04:53:27,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:27,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227384532] [2024-11-28 04:53:27,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:27,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:27,297 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 04:53:27,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:27,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227384532] [2024-11-28 04:53:27,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227384532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:27,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:27,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:27,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320686439] [2024-11-28 04:53:27,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:27,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:27,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:27,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:27,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:27,299 INFO L87 Difference]: Start difference. First operand 3734 states and 5461 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:27,499 INFO L93 Difference]: Finished difference Result 7432 states and 10886 transitions. [2024-11-28 04:53:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:27,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 04:53:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:27,519 INFO L225 Difference]: With dead ends: 7432 [2024-11-28 04:53:27,523 INFO L226 Difference]: Without dead ends: 3734 [2024-11-28 04:53:27,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:27,528 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 316 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:27,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 101 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2024-11-28 04:53:27,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3734. [2024-11-28 04:53:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3733 states have (on average 1.4500401821591213) internal successors, (5413), 3733 states have internal predecessors, (5413), 0 states have call successors, (0), 0 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 04:53:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 5413 transitions. [2024-11-28 04:53:27,659 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 5413 transitions. Word has length 67 [2024-11-28 04:53:27,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:27,659 INFO L471 AbstractCegarLoop]: Abstraction has 3734 states and 5413 transitions. [2024-11-28 04:53:27,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 5413 transitions. [2024-11-28 04:53:27,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:53:27,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:27,661 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:27,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:53:27,661 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:27,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:27,662 INFO L85 PathProgramCache]: Analyzing trace with hash -263559015, now seen corresponding path program 1 times [2024-11-28 04:53:27,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:27,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942390665] [2024-11-28 04:53:27,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:27,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:28,211 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 04:53:28,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:28,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942390665] [2024-11-28 04:53:28,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942390665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:28,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:28,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238675201] [2024-11-28 04:53:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:28,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:28,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:28,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:28,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:28,212 INFO L87 Difference]: Start difference. First operand 3734 states and 5413 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:28,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:28,271 INFO L93 Difference]: Finished difference Result 3864 states and 5606 transitions. [2024-11-28 04:53:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:28,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-28 04:53:28,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:28,281 INFO L225 Difference]: With dead ends: 3864 [2024-11-28 04:53:28,282 INFO L226 Difference]: Without dead ends: 3862 [2024-11-28 04:53:28,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:28,284 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:28,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 493 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2024-11-28 04:53:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 3862. [2024-11-28 04:53:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 1.430976430976431) internal successors, (5525), 3861 states have internal predecessors, (5525), 0 states have call successors, (0), 0 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 04:53:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 5525 transitions. [2024-11-28 04:53:28,370 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 5525 transitions. Word has length 67 [2024-11-28 04:53:28,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:28,371 INFO L471 AbstractCegarLoop]: Abstraction has 3862 states and 5525 transitions. [2024-11-28 04:53:28,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 5525 transitions. [2024-11-28 04:53:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:53:28,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:28,381 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:28,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:53:28,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:28,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:28,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1999510602, now seen corresponding path program 1 times [2024-11-28 04:53:28,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:28,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362618781] [2024-11-28 04:53:28,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 04:53:28,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:28,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362618781] [2024-11-28 04:53:28,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362618781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:28,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:28,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:28,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650011648] [2024-11-28 04:53:28,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:28,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:28,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:28,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:28,705 INFO L87 Difference]: Start difference. First operand 3862 states and 5525 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:28,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:28,996 INFO L93 Difference]: Finished difference Result 23714 states and 33971 transitions. [2024-11-28 04:53:28,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:28,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-28 04:53:28,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:29,042 INFO L225 Difference]: With dead ends: 23714 [2024-11-28 04:53:29,043 INFO L226 Difference]: Without dead ends: 19888 [2024-11-28 04:53:29,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:53:29,056 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 926 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:29,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 805 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:29,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19888 states. [2024-11-28 04:53:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19888 to 7686. [2024-11-28 04:53:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 1.4268054651919324) internal successors, (10965), 7685 states have internal predecessors, (10965), 0 states have call successors, (0), 0 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 04:53:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 10965 transitions. [2024-11-28 04:53:29,338 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 10965 transitions. Word has length 94 [2024-11-28 04:53:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:29,339 INFO L471 AbstractCegarLoop]: Abstraction has 7686 states and 10965 transitions. [2024-11-28 04:53:29,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 10965 transitions. [2024-11-28 04:53:29,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:53:29,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:29,343 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:29,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:53:29,343 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:29,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash 845564496, now seen corresponding path program 1 times [2024-11-28 04:53:29,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:29,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924539353] [2024-11-28 04:53:29,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 04:53:29,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:29,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924539353] [2024-11-28 04:53:29,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924539353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:29,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:29,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:29,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512871506] [2024-11-28 04:53:29,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:29,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:29,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:29,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:29,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:29,632 INFO L87 Difference]: Start difference. First operand 7686 states and 10965 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 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 04:53:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:29,978 INFO L93 Difference]: Finished difference Result 27538 states and 39411 transitions. [2024-11-28 04:53:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-28 04:53:29,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:30,039 INFO L225 Difference]: With dead ends: 27538 [2024-11-28 04:53:30,039 INFO L226 Difference]: Without dead ends: 23712 [2024-11-28 04:53:30,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:53:30,052 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 877 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:30,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 829 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:30,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23712 states. [2024-11-28 04:53:30,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23712 to 13430. [2024-11-28 04:53:30,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13430 states, 13429 states have (on average 1.421178047509122) internal successors, (19085), 13429 states have internal predecessors, (19085), 0 states have call successors, (0), 0 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 04:53:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13430 states to 13430 states and 19085 transitions. [2024-11-28 04:53:30,490 INFO L78 Accepts]: Start accepts. Automaton has 13430 states and 19085 transitions. Word has length 94 [2024-11-28 04:53:30,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:30,490 INFO L471 AbstractCegarLoop]: Abstraction has 13430 states and 19085 transitions. [2024-11-28 04:53:30,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 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 04:53:30,491 INFO L276 IsEmpty]: Start isEmpty. Operand 13430 states and 19085 transitions. [2024-11-28 04:53:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:53:30,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:30,496 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:30,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:53:30,497 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:30,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1141609924, now seen corresponding path program 1 times [2024-11-28 04:53:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211803295] [2024-11-28 04:53:30,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:53:30,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:30,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211803295] [2024-11-28 04:53:30,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211803295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:30,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:30,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:30,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862175248] [2024-11-28 04:53:30,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:30,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:30,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:30,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:30,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:30,817 INFO L87 Difference]: Start difference. First operand 13430 states and 19085 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:31,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:31,095 INFO L93 Difference]: Finished difference Result 31362 states and 44851 transitions. [2024-11-28 04:53:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:31,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-28 04:53:31,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:31,149 INFO L225 Difference]: With dead ends: 31362 [2024-11-28 04:53:31,149 INFO L226 Difference]: Without dead ends: 27536 [2024-11-28 04:53:31,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:53:31,160 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 772 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:31,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 948 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:31,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27536 states. [2024-11-28 04:53:31,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27536 to 17254. [2024-11-28 04:53:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17254 states, 17253 states have (on average 1.421491914449661) internal successors, (24525), 17253 states have internal predecessors, (24525), 0 states have call successors, (0), 0 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 04:53:31,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17254 states to 17254 states and 24525 transitions. [2024-11-28 04:53:31,587 INFO L78 Accepts]: Start accepts. Automaton has 17254 states and 24525 transitions. Word has length 94 [2024-11-28 04:53:31,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:31,588 INFO L471 AbstractCegarLoop]: Abstraction has 17254 states and 24525 transitions. [2024-11-28 04:53:31,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:31,588 INFO L276 IsEmpty]: Start isEmpty. Operand 17254 states and 24525 transitions. [2024-11-28 04:53:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:53:31,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:31,591 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:31,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:53:31,591 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:31,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1724860738, now seen corresponding path program 1 times [2024-11-28 04:53:31,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:31,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880469369] [2024-11-28 04:53:31,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:31,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:53:31,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:31,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880469369] [2024-11-28 04:53:31,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880469369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:31,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:31,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:31,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000591907] [2024-11-28 04:53:31,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:31,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:31,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:31,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:31,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:31,980 INFO L87 Difference]: Start difference. First operand 17254 states and 24525 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:32,307 INFO L93 Difference]: Finished difference Result 35186 states and 50291 transitions. [2024-11-28 04:53:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:32,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-28 04:53:32,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:32,384 INFO L225 Difference]: With dead ends: 35186 [2024-11-28 04:53:32,384 INFO L226 Difference]: Without dead ends: 31360 [2024-11-28 04:53:32,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:53:32,399 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 817 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:32,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 932 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31360 states. [2024-11-28 04:53:32,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31360 to 21078. [2024-11-28 04:53:32,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21078 states, 21077 states have (on average 1.421691891635432) internal successors, (29965), 21077 states have internal predecessors, (29965), 0 states have call successors, (0), 0 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 04:53:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21078 states to 21078 states and 29965 transitions. [2024-11-28 04:53:32,931 INFO L78 Accepts]: Start accepts. Automaton has 21078 states and 29965 transitions. Word has length 94 [2024-11-28 04:53:32,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:32,931 INFO L471 AbstractCegarLoop]: Abstraction has 21078 states and 29965 transitions. [2024-11-28 04:53:32,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 21078 states and 29965 transitions. [2024-11-28 04:53:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:53:32,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:32,937 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:53:32,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:53:32,937 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:32,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1883520118, now seen corresponding path program 1 times [2024-11-28 04:53:32,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:32,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235622933] [2024-11-28 04:53:32,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:32,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:33,253 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:53:33,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:33,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235622933] [2024-11-28 04:53:33,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235622933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:33,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:33,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:53:33,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335064708] [2024-11-28 04:53:33,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:33,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:33,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:33,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:33,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:33,255 INFO L87 Difference]: Start difference. First operand 21078 states and 29965 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:33,614 INFO L93 Difference]: Finished difference Result 36610 states and 52371 transitions. [2024-11-28 04:53:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:33,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-28 04:53:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:33,692 INFO L225 Difference]: With dead ends: 36610 [2024-11-28 04:53:33,692 INFO L226 Difference]: Without dead ends: 33984 [2024-11-28 04:53:33,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:53:33,705 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 809 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:33,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 862 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33984 states. [2024-11-28 04:53:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33984 to 23702. [2024-11-28 04:53:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23702 states, 23701 states have (on average 1.4236108181089406) internal successors, (33741), 23701 states have internal predecessors, (33741), 0 states have call successors, (0), 0 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 04:53:34,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23702 states to 23702 states and 33741 transitions. [2024-11-28 04:53:34,358 INFO L78 Accepts]: Start accepts. Automaton has 23702 states and 33741 transitions. Word has length 95 [2024-11-28 04:53:34,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:34,358 INFO L471 AbstractCegarLoop]: Abstraction has 23702 states and 33741 transitions. [2024-11-28 04:53:34,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:34,358 INFO L276 IsEmpty]: Start isEmpty. Operand 23702 states and 33741 transitions. [2024-11-28 04:53:34,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:53:34,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:34,364 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:53:34,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:53:34,366 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:34,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1641928633, now seen corresponding path program 1 times [2024-11-28 04:53:34,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:34,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115301057] [2024-11-28 04:53:34,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:35,337 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:35,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:35,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115301057] [2024-11-28 04:53:35,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115301057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:35,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193744418] [2024-11-28 04:53:35,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:35,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:35,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:35,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:35,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:53:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:35,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:53:35,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:53:36,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:36,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:53:36,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193744418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:36,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:36,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 4] total 19 [2024-11-28 04:53:36,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060967451] [2024-11-28 04:53:36,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:36,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:53:36,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:36,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:53:36,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:53:36,653 INFO L87 Difference]: Start difference. First operand 23702 states and 33741 transitions. Second operand has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 19 states have internal predecessors, (274), 0 states have call successors, (0), 0 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 04:53:45,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:45,096 INFO L93 Difference]: Finished difference Result 236840 states and 336520 transitions. [2024-11-28 04:53:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-28 04:53:45,096 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 19 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-28 04:53:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:45,494 INFO L225 Difference]: With dead ends: 236840 [2024-11-28 04:53:45,495 INFO L226 Difference]: Without dead ends: 213174 [2024-11-28 04:53:45,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5932 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2451, Invalid=12311, Unknown=0, NotChecked=0, Total=14762 [2024-11-28 04:53:45,540 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 5838 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5838 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:45,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5838 Valid, 1524 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:53:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213174 states. [2024-11-28 04:53:48,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213174 to 165854. [2024-11-28 04:53:48,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165854 states, 165853 states have (on average 1.3933845031443508) internal successors, (231097), 165853 states have internal predecessors, (231097), 0 states have call successors, (0), 0 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 04:53:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165854 states to 165854 states and 231097 transitions. [2024-11-28 04:53:49,108 INFO L78 Accepts]: Start accepts. Automaton has 165854 states and 231097 transitions. Word has length 96 [2024-11-28 04:53:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:49,109 INFO L471 AbstractCegarLoop]: Abstraction has 165854 states and 231097 transitions. [2024-11-28 04:53:49,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.421052631578947) internal successors, (274), 19 states have internal predecessors, (274), 0 states have call successors, (0), 0 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 04:53:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 165854 states and 231097 transitions. [2024-11-28 04:53:49,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:53:49,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:49,128 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:53:49,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:49,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:53:49,329 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:49,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:49,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1309023430, now seen corresponding path program 1 times [2024-11-28 04:53:49,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:49,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761245578] [2024-11-28 04:53:49,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:49,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:49,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:49,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761245578] [2024-11-28 04:53:49,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761245578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:49,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:49,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:49,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102342116] [2024-11-28 04:53:49,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:49,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:49,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:49,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:49,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:49,533 INFO L87 Difference]: Start difference. First operand 165854 states and 231097 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:50,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:50,884 INFO L93 Difference]: Finished difference Result 294269 states and 409721 transitions. [2024-11-28 04:53:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:50,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-28 04:53:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:51,040 INFO L225 Difference]: With dead ends: 294269 [2024-11-28 04:53:51,040 INFO L226 Difference]: Without dead ends: 128451 [2024-11-28 04:53:51,105 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 04:53:51,105 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 59 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:51,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 282 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128451 states. [2024-11-28 04:53:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128451 to 128449. [2024-11-28 04:53:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128449 states, 128448 states have (on average 1.3765648355754858) internal successors, (176817), 128448 states have internal predecessors, (176817), 0 states have call successors, (0), 0 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 04:53:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128449 states to 128449 states and 176817 transitions. [2024-11-28 04:53:53,251 INFO L78 Accepts]: Start accepts. Automaton has 128449 states and 176817 transitions. Word has length 96 [2024-11-28 04:53:53,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:53,251 INFO L471 AbstractCegarLoop]: Abstraction has 128449 states and 176817 transitions. [2024-11-28 04:53:53,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:53:53,251 INFO L276 IsEmpty]: Start isEmpty. Operand 128449 states and 176817 transitions. [2024-11-28 04:53:53,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:53:53,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:53,257 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:53:53,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:53:53,257 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:53,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:53,258 INFO L85 PathProgramCache]: Analyzing trace with hash 818305804, now seen corresponding path program 1 times [2024-11-28 04:53:53,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:53,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253572204] [2024-11-28 04:53:53,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:53,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253572204] [2024-11-28 04:53:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253572204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464132141] [2024-11-28 04:53:54,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:54,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:54,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:54,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:54,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:53:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:54,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:53:54,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:55,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:56,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464132141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:56,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:56,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-28 04:53:56,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247811458] [2024-11-28 04:53:56,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:56,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:53:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:56,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:53:56,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:53:56,640 INFO L87 Difference]: Start difference. First operand 128449 states and 176817 transitions. Second operand has 25 states, 25 states have (on average 9.84) internal successors, (246), 24 states have internal predecessors, (246), 0 states have call successors, (0), 0 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 04:54:04,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:04,235 INFO L93 Difference]: Finished difference Result 1000085 states and 1363880 transitions. [2024-11-28 04:54:04,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-28 04:54:04,236 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.84) internal successors, (246), 24 states have internal predecessors, (246), 0 states have call successors, (0), 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 97 [2024-11-28 04:54:04,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:05,384 INFO L225 Difference]: With dead ends: 1000085 [2024-11-28 04:54:05,384 INFO L226 Difference]: Without dead ends: 871674 [2024-11-28 04:54:06,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2463 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1479, Invalid=7451, Unknown=0, NotChecked=0, Total=8930 [2024-11-28 04:54:06,287 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 4215 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:06,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 1878 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:54:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871674 states. [2024-11-28 04:54:15,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871674 to 595881. [2024-11-28 04:54:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595881 states, 595880 states have (on average 1.3528428542659596) internal successors, (806132), 595880 states have internal predecessors, (806132), 0 states have call successors, (0), 0 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 04:54:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595881 states to 595881 states and 806132 transitions. [2024-11-28 04:54:18,929 INFO L78 Accepts]: Start accepts. Automaton has 595881 states and 806132 transitions. Word has length 97 [2024-11-28 04:54:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:18,930 INFO L471 AbstractCegarLoop]: Abstraction has 595881 states and 806132 transitions. [2024-11-28 04:54:18,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.84) internal successors, (246), 24 states have internal predecessors, (246), 0 states have call successors, (0), 0 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 04:54:18,930 INFO L276 IsEmpty]: Start isEmpty. Operand 595881 states and 806132 transitions. [2024-11-28 04:54:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:54:18,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:18,954 INFO L218 NwaCegarLoop]: trace histogram [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 04:54:18,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:54:19,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08adc5b2-e655-4b31-a893-985e77d1facf/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:19,155 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:54:19,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1901352570, now seen corresponding path program 1 times [2024-11-28 04:54:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:19,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891516822] [2024-11-28 04:54:19,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:54:19,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891516822] [2024-11-28 04:54:19,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891516822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:19,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:19,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:54:19,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996334068] [2024-11-28 04:54:19,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:19,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:19,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:19,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:19,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:19,274 INFO L87 Difference]: Start difference. First operand 595881 states and 806132 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:24,054 INFO L93 Difference]: Finished difference Result 932274 states and 1267803 transitions. [2024-11-28 04:54:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:24,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-28 04:54:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:24,597 INFO L225 Difference]: With dead ends: 932274 [2024-11-28 04:54:24,597 INFO L226 Difference]: Without dead ends: 336552 [2024-11-28 04:54:24,742 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 04:54:24,743 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 68 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:24,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 123 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336552 states.