./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-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_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1 --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 38de1f601deff70f21f1ef1f0123eb0d7f517b820846e07815605162625b0305 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:33:24,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:33:24,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:33:24,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:33:24,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:33:24,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:33:24,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:33:24,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:33:24,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:33:24,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:33:24,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:33:24,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:33:24,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:33:24,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:33:24,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:33:24,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:33:24,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:33:24,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:33:24,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:33:24,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:33:24,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:33:24,298 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_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1 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 -> 38de1f601deff70f21f1ef1f0123eb0d7f517b820846e07815605162625b0305 [2024-12-02 12:33:24,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:33:24,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:33:24,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:33:24,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:33:24,529 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:33:24,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-12-02 12:33:27,168 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/data/fe84eae45/088d910e9e3e435e916ad745711ac75b/FLAGf2c316579 [2024-12-02 12:33:27,442 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:33:27,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-12-02 12:33:27,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/data/fe84eae45/088d910e9e3e435e916ad745711ac75b/FLAGf2c316579 [2024-12-02 12:33:27,475 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/data/fe84eae45/088d910e9e3e435e916ad745711ac75b [2024-12-02 12:33:27,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:33:27,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:33:27,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:33:27,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:33:27,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:33:27,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:33:27" (1/1) ... [2024-12-02 12:33:27,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12831ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:27, skipping insertion in model container [2024-12-02 12:33:27,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:33:27" (1/1) ... [2024-12-02 12:33:27,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:33:27,994 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_39d93320-18fa-4a2f-ab4b-184c3e4b7324/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[30493,30506] [2024-12-02 12:33:28,048 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_39d93320-18fa-4a2f-ab4b-184c3e4b7324/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[33882,33895] [2024-12-02 12:33:28,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:33:28,267 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:33:28,474 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_39d93320-18fa-4a2f-ab4b-184c3e4b7324/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[30493,30506] [2024-12-02 12:33:28,516 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_39d93320-18fa-4a2f-ab4b-184c3e4b7324/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[33882,33895] [2024-12-02 12:33:28,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:33:28,667 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:33:28,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28 WrapperNode [2024-12-02 12:33:28,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:33:28,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:33:28,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:33:28,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:33:28,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,768 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3966 [2024-12-02 12:33:28,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:33:28,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:33:28,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:33:28,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:33:28,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,812 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]. [2024-12-02 12:33:28,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,839 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:33:28,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:33:28,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:33:28,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:33:28,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (1/1) ... [2024-12-02 12:33:28,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:33:28,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:33:28,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:33:28,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39d93320-18fa-4a2f-ab4b-184c3e4b7324/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:33:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:33:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:33:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:33:28,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:33:29,112 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:33:29,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:33:31,615 INFO L? ?]: Removed 221 outVars from TransFormulas that were not future-live. [2024-12-02 12:33:31,615 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:33:31,644 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:33:31,645 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 12:33:31,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:33:31 BoogieIcfgContainer [2024-12-02 12:33:31,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:33:31,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:33:31,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:33:31,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:33:31,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:33:27" (1/3) ... [2024-12-02 12:33:31,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0dd95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:33:31, skipping insertion in model container [2024-12-02 12:33:31,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:33:28" (2/3) ... [2024-12-02 12:33:31,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0dd95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:33:31, skipping insertion in model container [2024-12-02 12:33:31,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:33:31" (3/3) ... [2024-12-02 12:33:31,654 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-12-02 12:33:31,665 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:33:31,667 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c that has 1 procedures, 1121 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 12:33:31,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:33:31,738 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;@60ab0965, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:33:31,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 12:33:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 1118 states have (on average 1.7361359570661896) internal successors, (1941), 1120 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 12:33:31,762 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:31,763 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:31,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:31,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash 456360996, now seen corresponding path program 1 times [2024-12-02 12:33:31,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:31,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398811124] [2024-12-02 12:33:31,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:31,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:32,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:32,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:32,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398811124] [2024-12-02 12:33:32,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398811124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:32,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:32,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:33:32,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945252510] [2024-12-02 12:33:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:32,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:33:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:32,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:33:32,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:33:32,455 INFO L87 Difference]: Start difference. First operand has 1121 states, 1118 states have (on average 1.7361359570661896) internal successors, (1941), 1120 states have internal predecessors, (1941), 0 states have call successors, (0), 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 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:32,627 INFO L93 Difference]: Finished difference Result 2054 states and 3532 transitions. [2024-12-02 12:33:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:33:32,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-12-02 12:33:32,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:32,642 INFO L225 Difference]: With dead ends: 2054 [2024-12-02 12:33:32,642 INFO L226 Difference]: Without dead ends: 1118 [2024-12-02 12:33:32,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:33:32,650 INFO L435 NwaCegarLoop]: 1937 mSDtfsCounter, 0 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5763 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:32,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5763 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-12-02 12:33:32,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2024-12-02 12:33:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1116 states have (on average 1.6926523297491038) internal successors, (1889), 1117 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:32,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1889 transitions. [2024-12-02 12:33:32,714 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1889 transitions. Word has length 150 [2024-12-02 12:33:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:32,714 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1889 transitions. [2024-12-02 12:33:32,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1889 transitions. [2024-12-02 12:33:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 12:33:32,719 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:32,719 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:32,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:33:32,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:32,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1166050469, now seen corresponding path program 1 times [2024-12-02 12:33:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471292528] [2024-12-02 12:33:32,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:32,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:32,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471292528] [2024-12-02 12:33:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471292528] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:32,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:32,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:32,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228130802] [2024-12-02 12:33:32,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:32,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:32,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:32,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:32,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:32,970 INFO L87 Difference]: Start difference. First operand 1118 states and 1889 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:33,255 INFO L93 Difference]: Finished difference Result 2859 states and 4838 transitions. [2024-12-02 12:33:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:33,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2024-12-02 12:33:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:33,263 INFO L225 Difference]: With dead ends: 2859 [2024-12-02 12:33:33,263 INFO L226 Difference]: Without dead ends: 1949 [2024-12-02 12:33:33,265 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 [2024-12-02 12:33:33,265 INFO L435 NwaCegarLoop]: 3002 mSDtfsCounter, 1382 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 4723 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:33,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 4723 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:33:33,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-12-02 12:33:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1939. [2024-12-02 12:33:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1937 states have (on average 1.6721734641197727) internal successors, (3239), 1938 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 3239 transitions. [2024-12-02 12:33:33,323 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 3239 transitions. Word has length 191 [2024-12-02 12:33:33,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:33,324 INFO L471 AbstractCegarLoop]: Abstraction has 1939 states and 3239 transitions. [2024-12-02 12:33:33,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 3239 transitions. [2024-12-02 12:33:33,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 12:33:33,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:33,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:33,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:33:33,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:33,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:33,331 INFO L85 PathProgramCache]: Analyzing trace with hash 955874818, now seen corresponding path program 1 times [2024-12-02 12:33:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:33,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929711066] [2024-12-02 12:33:33,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:33,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:33,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:33,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929711066] [2024-12-02 12:33:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929711066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:33,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:33,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911617112] [2024-12-02 12:33:33,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:33,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:33,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:33,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:33,501 INFO L87 Difference]: Start difference. First operand 1939 states and 3239 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:33,597 INFO L93 Difference]: Finished difference Result 3238 states and 5452 transitions. [2024-12-02 12:33:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:33,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2024-12-02 12:33:33,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:33,603 INFO L225 Difference]: With dead ends: 3238 [2024-12-02 12:33:33,604 INFO L226 Difference]: Without dead ends: 2328 [2024-12-02 12:33:33,605 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 [2024-12-02 12:33:33,606 INFO L435 NwaCegarLoop]: 2907 mSDtfsCounter, 1241 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:33,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 4541 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:33:33,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2024-12-02 12:33:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2324. [2024-12-02 12:33:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 2322 states have (on average 1.677433247200689) internal successors, (3895), 2323 states have internal predecessors, (3895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3895 transitions. [2024-12-02 12:33:33,664 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3895 transitions. Word has length 196 [2024-12-02 12:33:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:33,665 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3895 transitions. [2024-12-02 12:33:33,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3895 transitions. [2024-12-02 12:33:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 12:33:33,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:33,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:33,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:33:33,669 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:33,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:33,669 INFO L85 PathProgramCache]: Analyzing trace with hash 339194995, now seen corresponding path program 1 times [2024-12-02 12:33:33,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:33,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565131203] [2024-12-02 12:33:33,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:33,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:33,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:33,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565131203] [2024-12-02 12:33:33,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565131203] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:33,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:33,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:33,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809905786] [2024-12-02 12:33:33,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:33,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:33,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:33,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:33,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:33,834 INFO L87 Difference]: Start difference. First operand 2324 states and 3895 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:33,992 INFO L93 Difference]: Finished difference Result 6356 states and 10643 transitions. [2024-12-02 12:33:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:33,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2024-12-02 12:33:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:34,003 INFO L225 Difference]: With dead ends: 6356 [2024-12-02 12:33:34,003 INFO L226 Difference]: Without dead ends: 4258 [2024-12-02 12:33:34,006 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 [2024-12-02 12:33:34,007 INFO L435 NwaCegarLoop]: 2994 mSDtfsCounter, 1399 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:34,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 4712 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4258 states. [2024-12-02 12:33:34,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4258 to 4237. [2024-12-02 12:33:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4237 states, 4235 states have (on average 1.667060212514758) internal successors, (7060), 4236 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4237 states to 4237 states and 7060 transitions. [2024-12-02 12:33:34,080 INFO L78 Accepts]: Start accepts. Automaton has 4237 states and 7060 transitions. Word has length 199 [2024-12-02 12:33:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:34,081 INFO L471 AbstractCegarLoop]: Abstraction has 4237 states and 7060 transitions. [2024-12-02 12:33:34,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:34,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4237 states and 7060 transitions. [2024-12-02 12:33:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 12:33:34,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:34,086 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:34,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:33:34,087 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:34,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:34,087 INFO L85 PathProgramCache]: Analyzing trace with hash 62690234, now seen corresponding path program 1 times [2024-12-02 12:33:34,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:34,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99147880] [2024-12-02 12:33:34,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:34,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99147880] [2024-12-02 12:33:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99147880] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:34,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598294926] [2024-12-02 12:33:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:34,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:34,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:34,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:34,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:34,226 INFO L87 Difference]: Start difference. First operand 4237 states and 7060 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:34,370 INFO L93 Difference]: Finished difference Result 7494 states and 12548 transitions. [2024-12-02 12:33:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2024-12-02 12:33:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:34,382 INFO L225 Difference]: With dead ends: 7494 [2024-12-02 12:33:34,382 INFO L226 Difference]: Without dead ends: 5396 [2024-12-02 12:33:34,385 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 [2024-12-02 12:33:34,385 INFO L435 NwaCegarLoop]: 2840 mSDtfsCounter, 1212 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:34,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 4431 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:34,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2024-12-02 12:33:34,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5392. [2024-12-02 12:33:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5390 states have (on average 1.6701298701298701) internal successors, (9002), 5391 states have internal predecessors, (9002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:34,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 9002 transitions. [2024-12-02 12:33:34,469 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 9002 transitions. Word has length 204 [2024-12-02 12:33:34,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:34,470 INFO L471 AbstractCegarLoop]: Abstraction has 5392 states and 9002 transitions. [2024-12-02 12:33:34,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 9002 transitions. [2024-12-02 12:33:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 12:33:34,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:34,476 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:34,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:33:34,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:34,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1975423087, now seen corresponding path program 1 times [2024-12-02 12:33:34,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:34,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053571747] [2024-12-02 12:33:34,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:34,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:34,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:34,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053571747] [2024-12-02 12:33:34,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053571747] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:34,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:34,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:34,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491092216] [2024-12-02 12:33:34,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:34,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:34,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:34,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:34,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:34,672 INFO L87 Difference]: Start difference. First operand 5392 states and 9002 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:34,860 INFO L93 Difference]: Finished difference Result 15236 states and 25366 transitions. [2024-12-02 12:33:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2024-12-02 12:33:34,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:34,887 INFO L225 Difference]: With dead ends: 15236 [2024-12-02 12:33:34,887 INFO L226 Difference]: Without dead ends: 10088 [2024-12-02 12:33:34,892 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 [2024-12-02 12:33:34,893 INFO L435 NwaCegarLoop]: 2919 mSDtfsCounter, 1368 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 4586 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:34,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 4586 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10088 states. [2024-12-02 12:33:35,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10088 to 10035. [2024-12-02 12:33:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10035 states, 10033 states have (on average 1.6552377155387221) internal successors, (16607), 10034 states have internal predecessors, (16607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10035 states to 10035 states and 16607 transitions. [2024-12-02 12:33:35,101 INFO L78 Accepts]: Start accepts. Automaton has 10035 states and 16607 transitions. Word has length 207 [2024-12-02 12:33:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:35,101 INFO L471 AbstractCegarLoop]: Abstraction has 10035 states and 16607 transitions. [2024-12-02 12:33:35,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 10035 states and 16607 transitions. [2024-12-02 12:33:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-12-02 12:33:35,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:35,114 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:35,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:33:35,114 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:35,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1745832106, now seen corresponding path program 1 times [2024-12-02 12:33:35,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:35,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121291702] [2024-12-02 12:33:35,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:35,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:35,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:35,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121291702] [2024-12-02 12:33:35,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121291702] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:35,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:35,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:35,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230304222] [2024-12-02 12:33:35,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:35,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:35,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:35,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:35,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:35,278 INFO L87 Difference]: Start difference. First operand 10035 states and 16607 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:35,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:35,435 INFO L93 Difference]: Finished difference Result 18168 states and 30221 transitions. [2024-12-02 12:33:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:35,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-12-02 12:33:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:35,459 INFO L225 Difference]: With dead ends: 18168 [2024-12-02 12:33:35,459 INFO L226 Difference]: Without dead ends: 13020 [2024-12-02 12:33:35,465 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 [2024-12-02 12:33:35,465 INFO L435 NwaCegarLoop]: 2765 mSDtfsCounter, 1183 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 4305 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:35,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 4305 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13020 states. [2024-12-02 12:33:35,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13020 to 13016. [2024-12-02 12:33:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13016 states, 13014 states have (on average 1.657061625941294) internal successors, (21565), 13015 states have internal predecessors, (21565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:35,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13016 states to 13016 states and 21565 transitions. [2024-12-02 12:33:35,708 INFO L78 Accepts]: Start accepts. Automaton has 13016 states and 21565 transitions. Word has length 212 [2024-12-02 12:33:35,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:35,708 INFO L471 AbstractCegarLoop]: Abstraction has 13016 states and 21565 transitions. [2024-12-02 12:33:35,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13016 states and 21565 transitions. [2024-12-02 12:33:35,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-12-02 12:33:35,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:35,724 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:35,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:33:35,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:35,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1067466193, now seen corresponding path program 1 times [2024-12-02 12:33:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:35,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375732736] [2024-12-02 12:33:35,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:35,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:35,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:35,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375732736] [2024-12-02 12:33:35,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375732736] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:35,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:35,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:35,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227684072] [2024-12-02 12:33:35,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:35,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:35,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:35,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:35,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:35,941 INFO L87 Difference]: Start difference. First operand 13016 states and 21565 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 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) [2024-12-02 12:33:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:36,201 INFO L93 Difference]: Finished difference Result 37226 states and 61403 transitions. [2024-12-02 12:33:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 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) Word has length 215 [2024-12-02 12:33:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:36,251 INFO L225 Difference]: With dead ends: 37226 [2024-12-02 12:33:36,251 INFO L226 Difference]: Without dead ends: 24472 [2024-12-02 12:33:36,265 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 [2024-12-02 12:33:36,265 INFO L435 NwaCegarLoop]: 2844 mSDtfsCounter, 1337 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:36,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 4460 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:36,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24472 states. [2024-12-02 12:33:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24472 to 24325. [2024-12-02 12:33:36,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24325 states, 24323 states have (on average 1.637380257369568) internal successors, (39826), 24324 states have internal predecessors, (39826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24325 states to 24325 states and 39826 transitions. [2024-12-02 12:33:36,718 INFO L78 Accepts]: Start accepts. Automaton has 24325 states and 39826 transitions. Word has length 215 [2024-12-02 12:33:36,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:36,718 INFO L471 AbstractCegarLoop]: Abstraction has 24325 states and 39826 transitions. [2024-12-02 12:33:36,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 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) [2024-12-02 12:33:36,719 INFO L276 IsEmpty]: Start isEmpty. Operand 24325 states and 39826 transitions. [2024-12-02 12:33:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-12-02 12:33:36,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:36,747 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:36,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:33:36,747 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:36,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:36,748 INFO L85 PathProgramCache]: Analyzing trace with hash -518054986, now seen corresponding path program 1 times [2024-12-02 12:33:36,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:36,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236745538] [2024-12-02 12:33:36,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:36,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:36,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:36,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236745538] [2024-12-02 12:33:36,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236745538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:36,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:36,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:33:36,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799589619] [2024-12-02 12:33:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:36,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:33:36,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:36,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:33:36,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:33:36,981 INFO L87 Difference]: Start difference. First operand 24325 states and 39826 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:37,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:37,227 INFO L93 Difference]: Finished difference Result 44146 states and 72658 transitions. [2024-12-02 12:33:37,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:33:37,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2024-12-02 12:33:37,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:37,277 INFO L225 Difference]: With dead ends: 44146 [2024-12-02 12:33:37,277 INFO L226 Difference]: Without dead ends: 31392 [2024-12-02 12:33:37,293 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 [2024-12-02 12:33:37,293 INFO L435 NwaCegarLoop]: 2690 mSDtfsCounter, 1154 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:37,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 4179 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:33:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2024-12-02 12:33:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 31388. [2024-12-02 12:33:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31388 states, 31386 states have (on average 1.636908175619703) internal successors, (51376), 31387 states have internal predecessors, (51376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31388 states to 31388 states and 51376 transitions. [2024-12-02 12:33:37,727 INFO L78 Accepts]: Start accepts. Automaton has 31388 states and 51376 transitions. Word has length 220 [2024-12-02 12:33:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:37,727 INFO L471 AbstractCegarLoop]: Abstraction has 31388 states and 51376 transitions. [2024-12-02 12:33:37,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 31388 states and 51376 transitions. [2024-12-02 12:33:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-12-02 12:33:37,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:37,749 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:37,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:33:37,749 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:37,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:37,750 INFO L85 PathProgramCache]: Analyzing trace with hash 855859059, now seen corresponding path program 1 times [2024-12-02 12:33:37,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:37,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502847968] [2024-12-02 12:33:37,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:37,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:37,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:37,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502847968] [2024-12-02 12:33:37,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502847968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:37,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:37,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:33:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923559633] [2024-12-02 12:33:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:37,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:33:37,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:37,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:33:37,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:33:37,946 INFO L87 Difference]: Start difference. First operand 31388 states and 51376 transitions. Second operand has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:39,611 INFO L93 Difference]: Finished difference Result 198225 states and 327011 transitions. [2024-12-02 12:33:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:33:39,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2024-12-02 12:33:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:39,960 INFO L225 Difference]: With dead ends: 198225 [2024-12-02 12:33:39,960 INFO L226 Difference]: Without dead ends: 167111 [2024-12-02 12:33:39,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:33:39,994 INFO L435 NwaCegarLoop]: 3517 mSDtfsCounter, 10966 mSDsluCounter, 10451 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10966 SdHoareTripleChecker+Valid, 13968 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:39,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10966 Valid, 13968 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:33:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167111 states. [2024-12-02 12:33:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167111 to 61336. [2024-12-02 12:33:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61336 states, 61334 states have (on average 1.6298627188834904) internal successors, (99966), 61335 states have internal predecessors, (99966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61336 states to 61336 states and 99966 transitions. [2024-12-02 12:33:41,491 INFO L78 Accepts]: Start accepts. Automaton has 61336 states and 99966 transitions. Word has length 223 [2024-12-02 12:33:41,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:41,492 INFO L471 AbstractCegarLoop]: Abstraction has 61336 states and 99966 transitions. [2024-12-02 12:33:41,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.166666666666664) internal successors, (223), 6 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:41,492 INFO L276 IsEmpty]: Start isEmpty. Operand 61336 states and 99966 transitions. [2024-12-02 12:33:41,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 12:33:41,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:41,528 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:41,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:33:41,528 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:41,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:41,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1539236947, now seen corresponding path program 1 times [2024-12-02 12:33:41,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:41,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487759192] [2024-12-02 12:33:41,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:41,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:41,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:41,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:41,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487759192] [2024-12-02 12:33:41,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487759192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:41,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:41,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:33:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561380502] [2024-12-02 12:33:41,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:41,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:33:41,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:41,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:33:41,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:33:41,760 INFO L87 Difference]: Start difference. First operand 61336 states and 99966 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:42,710 INFO L93 Difference]: Finished difference Result 200629 states and 328993 transitions. [2024-12-02 12:33:42,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:33:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2024-12-02 12:33:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:42,857 INFO L225 Difference]: With dead ends: 200629 [2024-12-02 12:33:42,857 INFO L226 Difference]: Without dead ends: 139567 [2024-12-02 12:33:42,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:33:42,905 INFO L435 NwaCegarLoop]: 1755 mSDtfsCounter, 4165 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:42,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 5807 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:33:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139567 states. [2024-12-02 12:33:44,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139567 to 100928. [2024-12-02 12:33:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100928 states, 100926 states have (on average 1.6307888948338387) internal successors, (164589), 100927 states have internal predecessors, (164589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100928 states to 100928 states and 164589 transitions. [2024-12-02 12:33:44,374 INFO L78 Accepts]: Start accepts. Automaton has 100928 states and 164589 transitions. Word has length 225 [2024-12-02 12:33:44,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:44,375 INFO L471 AbstractCegarLoop]: Abstraction has 100928 states and 164589 transitions. [2024-12-02 12:33:44,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 100928 states and 164589 transitions. [2024-12-02 12:33:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 12:33:44,449 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:44,449 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:44,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:33:44,449 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:44,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:44,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2146001833, now seen corresponding path program 1 times [2024-12-02 12:33:44,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:44,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521946260] [2024-12-02 12:33:44,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:44,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:44,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:44,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521946260] [2024-12-02 12:33:44,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521946260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:44,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:44,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:33:44,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720128913] [2024-12-02 12:33:44,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:44,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:33:44,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:44,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:33:44,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:33:44,639 INFO L87 Difference]: Start difference. First operand 100928 states and 164589 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:46,439 INFO L93 Difference]: Finished difference Result 326563 states and 533826 transitions. [2024-12-02 12:33:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:33:46,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2024-12-02 12:33:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:46,622 INFO L225 Difference]: With dead ends: 326563 [2024-12-02 12:33:46,622 INFO L226 Difference]: Without dead ends: 225909 [2024-12-02 12:33:46,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:33:46,666 INFO L435 NwaCegarLoop]: 1754 mSDtfsCounter, 4114 mSDsluCounter, 4070 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4114 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:46,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4114 Valid, 5824 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:33:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225909 states. [2024-12-02 12:33:48,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225909 to 164024. [2024-12-02 12:33:48,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164024 states, 164022 states have (on average 1.6255014571216055) internal successors, (266618), 164023 states have internal predecessors, (266618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164024 states to 164024 states and 266618 transitions. [2024-12-02 12:33:48,660 INFO L78 Accepts]: Start accepts. Automaton has 164024 states and 266618 transitions. Word has length 226 [2024-12-02 12:33:48,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:48,660 INFO L471 AbstractCegarLoop]: Abstraction has 164024 states and 266618 transitions. [2024-12-02 12:33:48,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:48,660 INFO L276 IsEmpty]: Start isEmpty. Operand 164024 states and 266618 transitions. [2024-12-02 12:33:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-12-02 12:33:48,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:48,926 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:48,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:33:48,926 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:48,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 989961350, now seen corresponding path program 1 times [2024-12-02 12:33:48,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:48,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621483040] [2024-12-02 12:33:48,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:49,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:49,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621483040] [2024-12-02 12:33:49,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621483040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:49,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:49,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:33:49,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467953730] [2024-12-02 12:33:49,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:49,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:33:49,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:49,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:33:49,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:33:49,116 INFO L87 Difference]: Start difference. First operand 164024 states and 266618 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:50,862 INFO L93 Difference]: Finished difference Result 526603 states and 858078 transitions. [2024-12-02 12:33:50,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:33:50,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 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 227 [2024-12-02 12:33:50,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:51,201 INFO L225 Difference]: With dead ends: 526603 [2024-12-02 12:33:51,201 INFO L226 Difference]: Without dead ends: 362853 [2024-12-02 12:33:51,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:33:51,268 INFO L435 NwaCegarLoop]: 2672 mSDtfsCounter, 4063 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4063 SdHoareTripleChecker+Valid, 6536 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:51,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4063 Valid, 6536 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:33:51,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362853 states. [2024-12-02 12:33:55,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362853 to 263990. [2024-12-02 12:33:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263990 states, 263988 states have (on average 1.6201797051381124) internal successors, (427708), 263989 states have internal predecessors, (427708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263990 states to 263990 states and 427708 transitions. [2024-12-02 12:33:56,002 INFO L78 Accepts]: Start accepts. Automaton has 263990 states and 427708 transitions. Word has length 227 [2024-12-02 12:33:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:33:56,002 INFO L471 AbstractCegarLoop]: Abstraction has 263990 states and 427708 transitions. [2024-12-02 12:33:56,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 263990 states and 427708 transitions. [2024-12-02 12:33:56,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-12-02 12:33:56,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:33:56,164 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:33:56,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:33:56,165 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:33:56,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:33:56,165 INFO L85 PathProgramCache]: Analyzing trace with hash -108589616, now seen corresponding path program 1 times [2024-12-02 12:33:56,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:33:56,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629351690] [2024-12-02 12:33:56,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:33:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:33:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:33:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:33:56,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:33:56,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629351690] [2024-12-02 12:33:56,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629351690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:33:56,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:33:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:33:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328580294] [2024-12-02 12:33:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:56,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:33:56,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:33:56,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:33:56,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:33:56,426 INFO L87 Difference]: Start difference. First operand 263990 states and 427708 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:33:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:33:59,244 INFO L93 Difference]: Finished difference Result 835862 states and 1357536 transitions. [2024-12-02 12:33:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:33:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2024-12-02 12:33:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:33:59,818 INFO L225 Difference]: With dead ends: 835862 [2024-12-02 12:33:59,818 INFO L226 Difference]: Without dead ends: 572146 [2024-12-02 12:33:59,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:33:59,910 INFO L435 NwaCegarLoop]: 1753 mSDtfsCounter, 4012 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 5545 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:33:59,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4012 Valid, 5545 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:34:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572146 states. [2024-12-02 12:34:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572146 to 417856. [2024-12-02 12:34:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417856 states, 417854 states have (on average 1.6147841111967338) internal successors, (674744), 417855 states have internal predecessors, (674744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417856 states to 417856 states and 674744 transitions. [2024-12-02 12:34:07,920 INFO L78 Accepts]: Start accepts. Automaton has 417856 states and 674744 transitions. Word has length 228 [2024-12-02 12:34:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:34:07,921 INFO L471 AbstractCegarLoop]: Abstraction has 417856 states and 674744 transitions. [2024-12-02 12:34:07,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 417856 states and 674744 transitions. [2024-12-02 12:34:08,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-12-02 12:34:08,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:34:08,545 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:34:08,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:34:08,545 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:34:08,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:34:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash -192327276, now seen corresponding path program 1 times [2024-12-02 12:34:08,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:34:08,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352384296] [2024-12-02 12:34:08,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:34:08,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:34:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:34:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:34:08,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:34:08,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352384296] [2024-12-02 12:34:08,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352384296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:34:08,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:34:08,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:34:08,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137904757] [2024-12-02 12:34:08,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:34:08,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:34:08,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:34:08,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:34:08,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:34:08,935 INFO L87 Difference]: Start difference. First operand 417856 states and 674744 transitions. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:34:11,843 INFO L93 Difference]: Finished difference Result 835442 states and 1349058 transitions. [2024-12-02 12:34:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:34:11,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 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 230 [2024-12-02 12:34:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:34:12,349 INFO L225 Difference]: With dead ends: 835442 [2024-12-02 12:34:12,349 INFO L226 Difference]: Without dead ends: 417860 [2024-12-02 12:34:12,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:34:12,485 INFO L435 NwaCegarLoop]: 2814 mSDtfsCounter, 4164 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4164 SdHoareTripleChecker+Valid, 7263 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:34:12,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4164 Valid, 7263 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:34:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417860 states. [2024-12-02 12:34:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417860 to 417856. [2024-12-02 12:34:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417856 states, 417854 states have (on average 1.6071091816758964) internal successors, (671537), 417855 states have internal predecessors, (671537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417856 states to 417856 states and 671537 transitions. [2024-12-02 12:34:18,846 INFO L78 Accepts]: Start accepts. Automaton has 417856 states and 671537 transitions. Word has length 230 [2024-12-02 12:34:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:34:18,847 INFO L471 AbstractCegarLoop]: Abstraction has 417856 states and 671537 transitions. [2024-12-02 12:34:18,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 417856 states and 671537 transitions. [2024-12-02 12:34:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-12-02 12:34:19,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:34:19,043 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:34:19,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:34:19,043 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:34:19,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:34:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1124115671, now seen corresponding path program 1 times [2024-12-02 12:34:19,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:34:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129698085] [2024-12-02 12:34:19,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:34:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:34:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:34:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:34:19,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:34:19,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129698085] [2024-12-02 12:34:19,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129698085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:34:19,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:34:19,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:34:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791499551] [2024-12-02 12:34:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:34:19,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:34:19,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:34:19,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:34:19,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:34:19,455 INFO L87 Difference]: Start difference. First operand 417856 states and 671537 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:23,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:34:23,391 INFO L93 Difference]: Finished difference Result 1183857 states and 1905952 transitions. [2024-12-02 12:34:23,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:34:23,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-12-02 12:34:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:34:24,197 INFO L225 Difference]: With dead ends: 1183857 [2024-12-02 12:34:24,197 INFO L226 Difference]: Without dead ends: 766275 [2024-12-02 12:34:24,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:34:24,322 INFO L435 NwaCegarLoop]: 1708 mSDtfsCounter, 4185 mSDsluCounter, 4497 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 6205 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:34:24,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 6205 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:34:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766275 states. [2024-12-02 12:34:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766275 to 766271. [2024-12-02 12:34:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766271 states, 766269 states have (on average 1.5980432459097262) internal successors, (1224531), 766270 states have internal predecessors, (1224531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:37,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766271 states to 766271 states and 1224531 transitions. [2024-12-02 12:34:37,194 INFO L78 Accepts]: Start accepts. Automaton has 766271 states and 1224531 transitions. Word has length 233 [2024-12-02 12:34:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:34:37,195 INFO L471 AbstractCegarLoop]: Abstraction has 766271 states and 1224531 transitions. [2024-12-02 12:34:37,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:37,195 INFO L276 IsEmpty]: Start isEmpty. Operand 766271 states and 1224531 transitions. [2024-12-02 12:34:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-02 12:34:38,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:34:38,025 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:34:38,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:34:38,025 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:34:38,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:34:38,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1877138135, now seen corresponding path program 1 times [2024-12-02 12:34:38,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:34:38,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266166738] [2024-12-02 12:34:38,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:34:38,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:34:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:34:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:34:38,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:34:38,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266166738] [2024-12-02 12:34:38,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266166738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:34:38,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:34:38,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:34:38,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237546738] [2024-12-02 12:34:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:34:38,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:34:38,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:34:38,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:34:38,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:34:38,410 INFO L87 Difference]: Start difference. First operand 766271 states and 1224531 transitions. Second operand has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:34:44,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:34:44,632 INFO L93 Difference]: Finished difference Result 2017656 states and 3241126 transitions. [2024-12-02 12:34:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:34:44,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2024-12-02 12:34:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:34:46,590 INFO L225 Difference]: With dead ends: 2017656 [2024-12-02 12:34:46,590 INFO L226 Difference]: Without dead ends: 1717763 [2024-12-02 12:34:46,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:34:46,933 INFO L435 NwaCegarLoop]: 3886 mSDtfsCounter, 6786 mSDsluCounter, 7402 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6786 SdHoareTripleChecker+Valid, 11288 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:34:46,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6786 Valid, 11288 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:34:48,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717763 states. [2024-12-02 12:35:12,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717763 to 1211445. [2024-12-02 12:35:12,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211445 states, 1211443 states have (on average 1.5976327404591053) internal successors, (1935441), 1211444 states have internal predecessors, (1935441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:35:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211445 states to 1211445 states and 1935441 transitions. [2024-12-02 12:35:15,507 INFO L78 Accepts]: Start accepts. Automaton has 1211445 states and 1935441 transitions. Word has length 234 [2024-12-02 12:35:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:35:15,508 INFO L471 AbstractCegarLoop]: Abstraction has 1211445 states and 1935441 transitions. [2024-12-02 12:35:15,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:35:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1211445 states and 1935441 transitions. [2024-12-02 12:35:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-02 12:35:16,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:35:16,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:35:16,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:35:16,046 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:35:16,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:35:16,047 INFO L85 PathProgramCache]: Analyzing trace with hash 786998467, now seen corresponding path program 1 times [2024-12-02 12:35:16,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:35:16,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153237215] [2024-12-02 12:35:16,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:35:16,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:35:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:35:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:35:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:35:16,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153237215] [2024-12-02 12:35:16,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153237215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:35:16,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:35:16,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:35:16,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946214746] [2024-12-02 12:35:16,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:35:16,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:35:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:35:16,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:35:16,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:35:16,762 INFO L87 Difference]: Start difference. First operand 1211445 states and 1935441 transitions. Second operand has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)