./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC --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 1aca40c6fb295c9a2e56226d72fd8b40da8517a7cbcabf878259c9e76e6a2f97 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:36:42,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:36:42,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:36:42,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:36:42,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:36:42,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:36:42,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:36:42,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:36:42,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:36:42,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:36:42,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:36:42,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:36:42,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:36:42,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:36:42,944 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:36:42,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:36:42,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:36:42,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:36:42,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:36:42,947 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:36:42,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:36:42,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:36:42,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:36:42,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:36:42,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:36:42,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:36:42,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:36:42,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:36:42,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:36:42,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:36:42,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:36:42,951 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:36:42,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:36:42,952 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_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC 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 -> 1aca40c6fb295c9a2e56226d72fd8b40da8517a7cbcabf878259c9e76e6a2f97 [2024-11-23 22:36:43,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:36:43,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:36:43,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:36:43,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:36:43,275 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:36:43,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-23 22:36:46,165 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/data/e17ae3d5e/a39436c4328a4588b053ae8e2cea4479/FLAG031feec14 [2024-11-23 22:36:46,885 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:36:46,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-23 22:36:46,924 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/data/e17ae3d5e/a39436c4328a4588b053ae8e2cea4479/FLAG031feec14 [2024-11-23 22:36:46,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/data/e17ae3d5e/a39436c4328a4588b053ae8e2cea4479 [2024-11-23 22:36:46,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:36:46,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:36:46,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:36:46,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:36:46,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:36:46,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:46" (1/1) ... [2024-11-23 22:36:46,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181ee7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:46, skipping insertion in model container [2024-11-23 22:36:46,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:46" (1/1) ... [2024-11-23 22:36:47,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:36:47,545 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_a56203bb-3efd-4d1c-bb87-da66135d8447/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c[11668,11681] [2024-11-23 22:36:47,658 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_a56203bb-3efd-4d1c-bb87-da66135d8447/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c[18729,18742] [2024-11-23 22:36:48,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:36:48,549 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:36:48,600 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_a56203bb-3efd-4d1c-bb87-da66135d8447/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c[11668,11681] [2024-11-23 22:36:48,612 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_a56203bb-3efd-4d1c-bb87-da66135d8447/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c[18729,18742] [2024-11-23 22:36:49,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:36:49,179 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:36:49,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49 WrapperNode [2024-11-23 22:36:49,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:36:49,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:36:49,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:36:49,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:36:49,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:49,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:49,633 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5095 [2024-11-23 22:36:49,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:36:49,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:36:49,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:36:49,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:36:49,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:49,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:49,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,045 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:36:50,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,199 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:36:50,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:36:50,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:36:50,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:36:50,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (1/1) ... [2024-11-23 22:36:50,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:36:50,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:36:50,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:36:50,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:36:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:36:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:36:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:36:50,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:36:50,686 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:36:50,689 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:36:57,025 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-23 22:36:57,026 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:36:57,074 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:36:57,076 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 22:36:57,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:57 BoogieIcfgContainer [2024-11-23 22:36:57,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:36:57,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:36:57,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:36:57,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:36:57,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:36:46" (1/3) ... [2024-11-23 22:36:57,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418e410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:57, skipping insertion in model container [2024-11-23 22:36:57,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:49" (2/3) ... [2024-11-23 22:36:57,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418e410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:57, skipping insertion in model container [2024-11-23 22:36:57,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:57" (3/3) ... [2024-11-23 22:36:57,093 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-23 22:36:57,111 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:36:57,115 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label04.c that has 1 procedures, 901 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 22:36:57,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:36:57,241 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;@6312280a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:36:57,243 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 22:36:57,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-23 22:36:57,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:57,262 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:57,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:57,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash 372784668, now seen corresponding path program 1 times [2024-11-23 22:36:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:57,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683610913] [2024-11-23 22:36:57,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:57,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:57,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683610913] [2024-11-23 22:36:57,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683610913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:57,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:57,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:36:57,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553944034] [2024-11-23 22:36:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:57,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:36:57,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:57,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:36:57,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:36:57,577 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:57,692 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2024-11-23 22:36:57,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:36:57,694 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-23 22:36:57,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:57,715 INFO L225 Difference]: With dead ends: 1763 [2024-11-23 22:36:57,716 INFO L226 Difference]: Without dead ends: 835 [2024-11-23 22:36:57,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:36:57,729 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:57,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:57,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-23 22:36:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-23 22:36:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2024-11-23 22:36:57,836 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2024-11-23 22:36:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:57,837 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2024-11-23 22:36:57,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:57,838 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2024-11-23 22:36:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-23 22:36:57,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:57,839 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] [2024-11-23 22:36:57,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:36:57,840 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:57,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:57,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2024-11-23 22:36:57,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:57,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284631897] [2024-11-23 22:36:57,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:58,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:58,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:58,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284631897] [2024-11-23 22:36:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284631897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:58,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:58,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:36:58,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622831724] [2024-11-23 22:36:58,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:58,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:36:58,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:58,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:36:58,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:58,222 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:58,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:58,389 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2024-11-23 22:36:58,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:36:58,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-23 22:36:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:58,394 INFO L225 Difference]: With dead ends: 883 [2024-11-23 22:36:58,394 INFO L226 Difference]: Without dead ends: 835 [2024-11-23 22:36:58,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:36:58,395 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:58,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:36:58,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-23 22:36:58,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-23 22:36:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2024-11-23 22:36:58,438 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2024-11-23 22:36:58,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:58,439 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2024-11-23 22:36:58,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:58,439 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2024-11-23 22:36:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-23 22:36:58,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:58,445 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] [2024-11-23 22:36:58,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:36:58,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2024-11-23 22:36:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429906111] [2024-11-23 22:36:58,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:58,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:58,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:58,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429906111] [2024-11-23 22:36:58,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429906111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:58,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:58,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:36:58,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358399342] [2024-11-23 22:36:58,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:58,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:36:58,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:58,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:36:58,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:36:58,779 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:59,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:59,164 INFO L93 Difference]: Finished difference Result 1275 states and 2246 transitions. [2024-11-23 22:36:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:36:59,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-23 22:36:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:59,174 INFO L225 Difference]: With dead ends: 1275 [2024-11-23 22:36:59,174 INFO L226 Difference]: Without dead ends: 1231 [2024-11-23 22:36:59,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:36:59,177 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:59,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:36:59,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-23 22:36:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 877. [2024-11-23 22:36:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 875 states have (on average 1.8434285714285714) internal successors, (1613), 876 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1613 transitions. [2024-11-23 22:36:59,228 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1613 transitions. Word has length 54 [2024-11-23 22:36:59,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:59,229 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1613 transitions. [2024-11-23 22:36:59,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:59,229 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1613 transitions. [2024-11-23 22:36:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 22:36:59,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:59,233 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] [2024-11-23 22:36:59,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:36:59,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:59,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2024-11-23 22:36:59,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:59,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406751650] [2024-11-23 22:36:59,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:59,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:59,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:36:59,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406751650] [2024-11-23 22:36:59,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406751650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:59,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:59,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:36:59,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004326915] [2024-11-23 22:36:59,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:59,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:36:59,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:36:59,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:36:59,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:59,428 INFO L87 Difference]: Start difference. First operand 877 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:59,497 INFO L93 Difference]: Finished difference Result 1038 states and 1868 transitions. [2024-11-23 22:36:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:36:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-23 22:36:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:59,503 INFO L225 Difference]: With dead ends: 1038 [2024-11-23 22:36:59,504 INFO L226 Difference]: Without dead ends: 952 [2024-11-23 22:36:59,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:36:59,508 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:59,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:36:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-23 22:36:59,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2024-11-23 22:36:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8213530655391121) internal successors, (1723), 947 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1723 transitions. [2024-11-23 22:36:59,564 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1723 transitions. Word has length 56 [2024-11-23 22:36:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:59,564 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1723 transitions. [2024-11-23 22:36:59,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:36:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1723 transitions. [2024-11-23 22:36:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 22:36:59,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:59,567 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] [2024-11-23 22:36:59,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:36:59,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:59,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2024-11-23 22:36:59,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:36:59,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142208515] [2024-11-23 22:36:59,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:59,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:36:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:00,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:00,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142208515] [2024-11-23 22:37:00,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142208515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:00,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:00,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:37:00,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140741270] [2024-11-23 22:37:00,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:00,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:37:00,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:00,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:37:00,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:37:00,091 INFO L87 Difference]: Start difference. First operand 948 states and 1723 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:00,380 INFO L93 Difference]: Finished difference Result 1107 states and 1971 transitions. [2024-11-23 22:37:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:37:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-23 22:37:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:00,386 INFO L225 Difference]: With dead ends: 1107 [2024-11-23 22:37:00,387 INFO L226 Difference]: Without dead ends: 950 [2024-11-23 22:37:00,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:37:00,389 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 3000 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:00,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 1813 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:00,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-23 22:37:00,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2024-11-23 22:37:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8192389006342495) internal successors, (1721), 947 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1721 transitions. [2024-11-23 22:37:00,427 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1721 transitions. Word has length 56 [2024-11-23 22:37:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:00,427 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1721 transitions. [2024-11-23 22:37:00,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1721 transitions. [2024-11-23 22:37:00,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-23 22:37:00,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:00,430 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] [2024-11-23 22:37:00,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:37:00,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:00,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2024-11-23 22:37:00,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:00,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412852263] [2024-11-23 22:37:00,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:01,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:01,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:01,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412852263] [2024-11-23 22:37:01,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412852263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:01,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:01,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:37:01,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546488613] [2024-11-23 22:37:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:01,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:37:01,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:01,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:37:01,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:37:01,022 INFO L87 Difference]: Start difference. First operand 948 states and 1721 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:01,122 INFO L93 Difference]: Finished difference Result 956 states and 1730 transitions. [2024-11-23 22:37:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:37:01,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-23 22:37:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:01,132 INFO L225 Difference]: With dead ends: 956 [2024-11-23 22:37:01,133 INFO L226 Difference]: Without dead ends: 954 [2024-11-23 22:37:01,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:37:01,134 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:01,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-23 22:37:01,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2024-11-23 22:37:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 1.8130252100840336) internal successors, (1726), 953 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1726 transitions. [2024-11-23 22:37:01,163 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1726 transitions. Word has length 57 [2024-11-23 22:37:01,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:01,164 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1726 transitions. [2024-11-23 22:37:01,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1726 transitions. [2024-11-23 22:37:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-23 22:37:01,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:01,165 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] [2024-11-23 22:37:01,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:37:01,165 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:01,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:01,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2024-11-23 22:37:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:01,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638088563] [2024-11-23 22:37:01,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:01,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:01,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638088563] [2024-11-23 22:37:01,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638088563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:01,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:01,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:01,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488564213] [2024-11-23 22:37:01,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:01,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:01,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:01,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:01,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,268 INFO L87 Difference]: Start difference. First operand 954 states and 1726 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:01,304 INFO L93 Difference]: Finished difference Result 1264 states and 2198 transitions. [2024-11-23 22:37:01,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:01,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-23 22:37:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:01,311 INFO L225 Difference]: With dead ends: 1264 [2024-11-23 22:37:01,311 INFO L226 Difference]: Without dead ends: 1101 [2024-11-23 22:37:01,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,312 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:01,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:01,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-23 22:37:01,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2024-11-23 22:37:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 1.7711941659070192) internal successors, (1943), 1098 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1943 transitions. [2024-11-23 22:37:01,345 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1943 transitions. Word has length 58 [2024-11-23 22:37:01,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:01,346 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1943 transitions. [2024-11-23 22:37:01,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1943 transitions. [2024-11-23 22:37:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-23 22:37:01,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:01,347 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] [2024-11-23 22:37:01,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:37:01,348 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:01,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:01,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2024-11-23 22:37:01,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:01,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510280158] [2024-11-23 22:37:01,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:01,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:01,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:01,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510280158] [2024-11-23 22:37:01,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510280158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:01,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:01,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:01,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166103907] [2024-11-23 22:37:01,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:01,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:01,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:01,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,432 INFO L87 Difference]: Start difference. First operand 1099 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:01,473 INFO L93 Difference]: Finished difference Result 1683 states and 2821 transitions. [2024-11-23 22:37:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:01,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-23 22:37:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:01,480 INFO L225 Difference]: With dead ends: 1683 [2024-11-23 22:37:01,480 INFO L226 Difference]: Without dead ends: 1375 [2024-11-23 22:37:01,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,482 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:01,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-23 22:37:01,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2024-11-23 22:37:01,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1371 states have (on average 1.7104303428154632) internal successors, (2345), 1372 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2345 transitions. [2024-11-23 22:37:01,524 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2345 transitions. Word has length 58 [2024-11-23 22:37:01,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:01,524 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2345 transitions. [2024-11-23 22:37:01,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2345 transitions. [2024-11-23 22:37:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-23 22:37:01,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:01,525 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] [2024-11-23 22:37:01,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:37:01,526 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:01,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:01,526 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2024-11-23 22:37:01,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:01,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994442261] [2024-11-23 22:37:01,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:01,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:01,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:01,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994442261] [2024-11-23 22:37:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994442261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:01,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210468673] [2024-11-23 22:37:01,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:01,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:01,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:01,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:01,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,599 INFO L87 Difference]: Start difference. First operand 1373 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:01,653 INFO L93 Difference]: Finished difference Result 2473 states and 3971 transitions. [2024-11-23 22:37:01,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:01,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-23 22:37:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:01,660 INFO L225 Difference]: With dead ends: 2473 [2024-11-23 22:37:01,661 INFO L226 Difference]: Without dead ends: 1891 [2024-11-23 22:37:01,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,662 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:01,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-23 22:37:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2024-11-23 22:37:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1887 states have (on average 1.634870164281929) internal successors, (3085), 1888 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3085 transitions. [2024-11-23 22:37:01,721 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3085 transitions. Word has length 58 [2024-11-23 22:37:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:01,721 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3085 transitions. [2024-11-23 22:37:01,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3085 transitions. [2024-11-23 22:37:01,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-23 22:37:01,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:01,722 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] [2024-11-23 22:37:01,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:37:01,723 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:01,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2024-11-23 22:37:01,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:01,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021299838] [2024-11-23 22:37:01,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:01,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:01,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:01,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021299838] [2024-11-23 22:37:01,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021299838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:01,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:01,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:01,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008278537] [2024-11-23 22:37:01,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:01,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:01,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:01,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,789 INFO L87 Difference]: Start difference. First operand 1889 states and 3085 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:01,853 INFO L93 Difference]: Finished difference Result 3957 states and 6079 transitions. [2024-11-23 22:37:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:01,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-23 22:37:01,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:01,864 INFO L225 Difference]: With dead ends: 3957 [2024-11-23 22:37:01,864 INFO L226 Difference]: Without dead ends: 2859 [2024-11-23 22:37:01,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:01,867 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:01,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2024-11-23 22:37:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2857. [2024-11-23 22:37:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2855 states have (on average 1.5541155866900176) internal successors, (4437), 2856 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4437 transitions. [2024-11-23 22:37:01,962 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4437 transitions. Word has length 58 [2024-11-23 22:37:01,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:01,962 INFO L471 AbstractCegarLoop]: Abstraction has 2857 states and 4437 transitions. [2024-11-23 22:37:01,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:01,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4437 transitions. [2024-11-23 22:37:01,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-23 22:37:01,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:01,963 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:01,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:37:01,964 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:01,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2024-11-23 22:37:01,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:01,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929225088] [2024-11-23 22:37:01,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:01,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:02,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:02,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929225088] [2024-11-23 22:37:02,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929225088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:02,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:02,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309100268] [2024-11-23 22:37:02,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:02,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:02,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:02,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:02,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:02,035 INFO L87 Difference]: Start difference. First operand 2857 states and 4437 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:02,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:02,119 INFO L93 Difference]: Finished difference Result 5040 states and 7611 transitions. [2024-11-23 22:37:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:02,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-23 22:37:02,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:02,135 INFO L225 Difference]: With dead ends: 5040 [2024-11-23 22:37:02,135 INFO L226 Difference]: Without dead ends: 3853 [2024-11-23 22:37:02,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:02,139 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:02,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-11-23 22:37:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2024-11-23 22:37:02,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5149389451805664) internal successors, (5831), 3850 states have internal predecessors, (5831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5831 transitions. [2024-11-23 22:37:02,266 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5831 transitions. Word has length 60 [2024-11-23 22:37:02,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:02,266 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5831 transitions. [2024-11-23 22:37:02,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5831 transitions. [2024-11-23 22:37:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-23 22:37:02,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:02,270 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:02,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:37:02,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:02,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:02,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1892219703, now seen corresponding path program 1 times [2024-11-23 22:37:02,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:02,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114283996] [2024-11-23 22:37:02,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:02,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:02,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:02,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114283996] [2024-11-23 22:37:02,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114283996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:02,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:02,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:02,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140487658] [2024-11-23 22:37:02,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:02,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:37:02,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:02,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:37:02,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:37:02,441 INFO L87 Difference]: Start difference. First operand 3851 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:10,910 INFO L93 Difference]: Finished difference Result 6106 states and 10140 transitions. [2024-11-23 22:37:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:37:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-23 22:37:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:10,926 INFO L225 Difference]: With dead ends: 6106 [2024-11-23 22:37:10,926 INFO L226 Difference]: Without dead ends: 5353 [2024-11-23 22:37:10,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:37:10,929 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 2405 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:10,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 800 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-23 22:37:10,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-23 22:37:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2024-11-23 22:37:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5351 states have (on average 1.4847692020183143) internal successors, (7945), 5352 states have internal predecessors, (7945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7945 transitions. [2024-11-23 22:37:11,092 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7945 transitions. Word has length 61 [2024-11-23 22:37:11,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:11,092 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 7945 transitions. [2024-11-23 22:37:11,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:11,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7945 transitions. [2024-11-23 22:37:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 22:37:11,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:11,096 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:11,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:37:11,096 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:11,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:11,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2024-11-23 22:37:11,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:11,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921249931] [2024-11-23 22:37:11,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:11,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 22:37:11,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:11,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921249931] [2024-11-23 22:37:11,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921249931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:11,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:11,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:37:11,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372619492] [2024-11-23 22:37:11,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:11,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:37:11,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:11,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:37:11,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:37:11,339 INFO L87 Difference]: Start difference. First operand 5353 states and 7945 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:11,976 INFO L93 Difference]: Finished difference Result 21301 states and 30607 transitions. [2024-11-23 22:37:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:37:11,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-23 22:37:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:12,055 INFO L225 Difference]: With dead ends: 21301 [2024-11-23 22:37:12,055 INFO L226 Difference]: Without dead ends: 18243 [2024-11-23 22:37:12,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:37:12,066 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 6332 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:12,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18243 states. [2024-11-23 22:37:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18243 to 8409. [2024-11-23 22:37:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8407 states have (on average 1.4570001189484953) internal successors, (12249), 8408 states have internal predecessors, (12249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:12,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 12249 transitions. [2024-11-23 22:37:12,621 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 12249 transitions. Word has length 77 [2024-11-23 22:37:12,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:12,622 INFO L471 AbstractCegarLoop]: Abstraction has 8409 states and 12249 transitions. [2024-11-23 22:37:12,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 12249 transitions. [2024-11-23 22:37:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 22:37:12,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:12,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:12,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:37:12,626 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:12,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:12,627 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2024-11-23 22:37:12,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:12,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647040842] [2024-11-23 22:37:12,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:12,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 22:37:12,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:12,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647040842] [2024-11-23 22:37:12,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647040842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:12,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:12,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:37:12,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666811692] [2024-11-23 22:37:12,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:12,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:37:12,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:12,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:37:12,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:37:12,847 INFO L87 Difference]: Start difference. First operand 8409 states and 12249 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:13,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:13,442 INFO L93 Difference]: Finished difference Result 24357 states and 34911 transitions. [2024-11-23 22:37:13,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:37:13,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-23 22:37:13,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:13,497 INFO L225 Difference]: With dead ends: 24357 [2024-11-23 22:37:13,497 INFO L226 Difference]: Without dead ends: 21299 [2024-11-23 22:37:13,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:37:13,507 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 6353 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:13,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3580 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21299 states. [2024-11-23 22:37:14,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21299 to 13001. [2024-11-23 22:37:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13001 states, 12999 states have (on average 1.4358796830525424) internal successors, (18665), 13000 states have internal predecessors, (18665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 18665 transitions. [2024-11-23 22:37:14,122 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 18665 transitions. Word has length 77 [2024-11-23 22:37:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:14,123 INFO L471 AbstractCegarLoop]: Abstraction has 13001 states and 18665 transitions. [2024-11-23 22:37:14,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 18665 transitions. [2024-11-23 22:37:14,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 22:37:14,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:14,127 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:14,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:37:14,128 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:14,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2024-11-23 22:37:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953160035] [2024-11-23 22:37:14,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 22:37:14,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:14,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953160035] [2024-11-23 22:37:14,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953160035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:14,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:14,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:37:14,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092168276] [2024-11-23 22:37:14,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:14,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:37:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:14,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:37:14,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:37:14,367 INFO L87 Difference]: Start difference. First operand 13001 states and 18665 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:15,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:15,105 INFO L93 Difference]: Finished difference Result 27413 states and 39215 transitions. [2024-11-23 22:37:15,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:37:15,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-23 22:37:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:15,168 INFO L225 Difference]: With dead ends: 27413 [2024-11-23 22:37:15,168 INFO L226 Difference]: Without dead ends: 24355 [2024-11-23 22:37:15,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:37:15,181 INFO L435 NwaCegarLoop]: 1607 mSDtfsCounter, 6394 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:15,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 3561 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2024-11-23 22:37:15,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 16057. [2024-11-23 22:37:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16057 states, 16055 states have (on average 1.43064465898474) internal successors, (22969), 16056 states have internal predecessors, (22969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:15,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16057 states to 16057 states and 22969 transitions. [2024-11-23 22:37:15,906 INFO L78 Accepts]: Start accepts. Automaton has 16057 states and 22969 transitions. Word has length 77 [2024-11-23 22:37:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:15,907 INFO L471 AbstractCegarLoop]: Abstraction has 16057 states and 22969 transitions. [2024-11-23 22:37:15,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:15,907 INFO L276 IsEmpty]: Start isEmpty. Operand 16057 states and 22969 transitions. [2024-11-23 22:37:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 22:37:15,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:15,910 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:15,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:37:15,911 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:15,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:15,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2024-11-23 22:37:15,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:15,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121182906] [2024-11-23 22:37:15,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:15,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:37:16,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:16,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121182906] [2024-11-23 22:37:16,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121182906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:16,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:16,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:37:16,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073768066] [2024-11-23 22:37:16,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:16,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:37:16,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:16,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:37:16,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:37:16,175 INFO L87 Difference]: Start difference. First operand 16057 states and 22969 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:16,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:16,966 INFO L93 Difference]: Finished difference Result 30469 states and 43519 transitions. [2024-11-23 22:37:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:37:16,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-23 22:37:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:17,034 INFO L225 Difference]: With dead ends: 30469 [2024-11-23 22:37:17,034 INFO L226 Difference]: Without dead ends: 27411 [2024-11-23 22:37:17,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:37:17,046 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 6347 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:17,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27411 states. [2024-11-23 22:37:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27411 to 19113. [2024-11-23 22:37:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19113 states, 19111 states have (on average 1.4270838783946418) internal successors, (27273), 19112 states have internal predecessors, (27273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:17,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19113 states to 19113 states and 27273 transitions. [2024-11-23 22:37:17,730 INFO L78 Accepts]: Start accepts. Automaton has 19113 states and 27273 transitions. Word has length 77 [2024-11-23 22:37:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:17,731 INFO L471 AbstractCegarLoop]: Abstraction has 19113 states and 27273 transitions. [2024-11-23 22:37:17,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 19113 states and 27273 transitions. [2024-11-23 22:37:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-23 22:37:17,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:17,734 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:17,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:37:17,734 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:17,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:17,735 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2024-11-23 22:37:17,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:17,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566726564] [2024-11-23 22:37:17,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:17,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:17,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:17,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566726564] [2024-11-23 22:37:17,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566726564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:17,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:17,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:17,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584800944] [2024-11-23 22:37:17,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:17,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:17,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:17,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:17,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:17,867 INFO L87 Difference]: Start difference. First operand 19113 states and 27273 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:18,157 INFO L93 Difference]: Finished difference Result 31105 states and 44368 transitions. [2024-11-23 22:37:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:18,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-23 22:37:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:18,189 INFO L225 Difference]: With dead ends: 31105 [2024-11-23 22:37:18,189 INFO L226 Difference]: Without dead ends: 14287 [2024-11-23 22:37:18,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:18,204 INFO L435 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:18,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14287 states. [2024-11-23 22:37:18,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14287 to 14285. [2024-11-23 22:37:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14285 states, 14283 states have (on average 1.4359028215360918) internal successors, (20509), 14284 states have internal predecessors, (20509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:18,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14285 states to 14285 states and 20509 transitions. [2024-11-23 22:37:18,717 INFO L78 Accepts]: Start accepts. Automaton has 14285 states and 20509 transitions. Word has length 79 [2024-11-23 22:37:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:18,717 INFO L471 AbstractCegarLoop]: Abstraction has 14285 states and 20509 transitions. [2024-11-23 22:37:18,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 14285 states and 20509 transitions. [2024-11-23 22:37:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-23 22:37:18,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:18,721 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:18,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 22:37:18,721 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:18,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:18,721 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2024-11-23 22:37:18,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:18,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147854705] [2024-11-23 22:37:18,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:18,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 22:37:18,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:18,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147854705] [2024-11-23 22:37:18,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147854705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:18,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:18,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:37:18,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733340041] [2024-11-23 22:37:18,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:18,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:37:18,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:18,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:37:18,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:37:18,909 INFO L87 Difference]: Start difference. First operand 14285 states and 20509 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:19,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:19,555 INFO L93 Difference]: Finished difference Result 25177 states and 36035 transitions. [2024-11-23 22:37:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:37:19,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-23 22:37:19,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:19,601 INFO L225 Difference]: With dead ends: 25177 [2024-11-23 22:37:19,601 INFO L226 Difference]: Without dead ends: 22999 [2024-11-23 22:37:19,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:37:19,610 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 6335 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:19,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3725 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:37:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2024-11-23 22:37:20,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 16461. [2024-11-23 22:37:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16461 states, 16459 states have (on average 1.432711586366122) internal successors, (23581), 16460 states have internal predecessors, (23581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:20,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16461 states to 16461 states and 23581 transitions. [2024-11-23 22:37:20,341 INFO L78 Accepts]: Start accepts. Automaton has 16461 states and 23581 transitions. Word has length 79 [2024-11-23 22:37:20,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:20,342 INFO L471 AbstractCegarLoop]: Abstraction has 16461 states and 23581 transitions. [2024-11-23 22:37:20,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 16461 states and 23581 transitions. [2024-11-23 22:37:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-23 22:37:20,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:20,346 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:20,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:37:20,346 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:20,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2024-11-23 22:37:20,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:20,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580857671] [2024-11-23 22:37:20,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:20,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:20,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580857671] [2024-11-23 22:37:20,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580857671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:20,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:20,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:20,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843127271] [2024-11-23 22:37:20,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:20,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:20,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:20,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:20,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:20,543 INFO L87 Difference]: Start difference. First operand 16461 states and 23581 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:20,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:20,925 INFO L93 Difference]: Finished difference Result 23537 states and 33567 transitions. [2024-11-23 22:37:20,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:20,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-23 22:37:20,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:20,951 INFO L225 Difference]: With dead ends: 23537 [2024-11-23 22:37:20,951 INFO L226 Difference]: Without dead ends: 9391 [2024-11-23 22:37:20,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:20,964 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:20,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2024-11-23 22:37:21,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 9389. [2024-11-23 22:37:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9389 states, 9387 states have (on average 1.4374134441248536) internal successors, (13493), 9388 states have internal predecessors, (13493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9389 states to 9389 states and 13493 transitions. [2024-11-23 22:37:21,395 INFO L78 Accepts]: Start accepts. Automaton has 9389 states and 13493 transitions. Word has length 80 [2024-11-23 22:37:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:21,396 INFO L471 AbstractCegarLoop]: Abstraction has 9389 states and 13493 transitions. [2024-11-23 22:37:21,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 9389 states and 13493 transitions. [2024-11-23 22:37:21,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-23 22:37:21,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:21,399 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:21,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:37:21,399 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:21,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2024-11-23 22:37:21,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:21,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119692388] [2024-11-23 22:37:21,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:21,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:21,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:21,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119692388] [2024-11-23 22:37:21,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119692388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:21,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:21,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:21,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607167639] [2024-11-23 22:37:21,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:21,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:21,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:21,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:21,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:21,565 INFO L87 Difference]: Start difference. First operand 9389 states and 13493 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:21,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:21,763 INFO L93 Difference]: Finished difference Result 12929 states and 18435 transitions. [2024-11-23 22:37:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:21,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-23 22:37:21,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:21,780 INFO L225 Difference]: With dead ends: 12929 [2024-11-23 22:37:21,780 INFO L226 Difference]: Without dead ends: 5855 [2024-11-23 22:37:21,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:21,792 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:21,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:21,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2024-11-23 22:37:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5853. [2024-11-23 22:37:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 5851 states have (on average 1.4529140317894378) internal successors, (8501), 5852 states have internal predecessors, (8501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 8501 transitions. [2024-11-23 22:37:22,069 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 8501 transitions. Word has length 82 [2024-11-23 22:37:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:22,069 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 8501 transitions. [2024-11-23 22:37:22,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 8501 transitions. [2024-11-23 22:37:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-23 22:37:22,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:22,072 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:22,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:37:22,074 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:22,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:22,074 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2024-11-23 22:37:22,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:22,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701546190] [2024-11-23 22:37:22,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:22,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:22,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:22,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701546190] [2024-11-23 22:37:22,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701546190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:22,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:22,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:22,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304862621] [2024-11-23 22:37:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:22,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:22,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:22,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:22,191 INFO L87 Difference]: Start difference. First operand 5853 states and 8501 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:22,269 INFO L93 Difference]: Finished difference Result 7625 states and 10947 transitions. [2024-11-23 22:37:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:22,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-23 22:37:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:22,279 INFO L225 Difference]: With dead ends: 7625 [2024-11-23 22:37:22,279 INFO L226 Difference]: Without dead ends: 4087 [2024-11-23 22:37:22,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:22,286 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:22,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:22,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2024-11-23 22:37:22,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4085. [2024-11-23 22:37:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4083 states have (on average 1.4771001714425667) internal successors, (6031), 4084 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6031 transitions. [2024-11-23 22:37:22,382 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6031 transitions. Word has length 84 [2024-11-23 22:37:22,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:22,383 INFO L471 AbstractCegarLoop]: Abstraction has 4085 states and 6031 transitions. [2024-11-23 22:37:22,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6031 transitions. [2024-11-23 22:37:22,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-23 22:37:22,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:22,385 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:22,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 22:37:22,386 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:22,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2024-11-23 22:37:22,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:22,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203560810] [2024-11-23 22:37:22,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:22,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:22,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:22,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203560810] [2024-11-23 22:37:22,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203560810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:22,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:22,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:37:22,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838558145] [2024-11-23 22:37:22,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:22,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:22,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:22,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:22,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:22,498 INFO L87 Difference]: Start difference. First operand 4085 states and 6031 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:22,550 INFO L93 Difference]: Finished difference Result 4973 states and 7242 transitions. [2024-11-23 22:37:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:22,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-23 22:37:22,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:22,562 INFO L225 Difference]: With dead ends: 4973 [2024-11-23 22:37:22,562 INFO L226 Difference]: Without dead ends: 3203 [2024-11-23 22:37:22,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:37:22,568 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:22,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:37:22,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-23 22:37:22,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3201. [2024-11-23 22:37:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.5032822757111597) internal successors, (4809), 3200 states have internal predecessors, (4809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4809 transitions. [2024-11-23 22:37:22,635 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4809 transitions. Word has length 86 [2024-11-23 22:37:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:22,635 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4809 transitions. [2024-11-23 22:37:22,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4809 transitions. [2024-11-23 22:37:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-23 22:37:22,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:22,637 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:22,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 22:37:22,637 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:22,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2024-11-23 22:37:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:22,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213729777] [2024-11-23 22:37:22,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:23,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:23,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213729777] [2024-11-23 22:37:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213729777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22540071] [2024-11-23 22:37:23,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:23,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:23,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:23,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:23,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:37:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:24,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:37:24,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:24,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:26,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22540071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:37:26,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:37:26,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-23 22:37:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59419989] [2024-11-23 22:37:26,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:26,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-23 22:37:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:26,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-23 22:37:26,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:37:26,736 INFO L87 Difference]: Start difference. First operand 3201 states and 4809 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:28,920 INFO L93 Difference]: Finished difference Result 6959 states and 9873 transitions. [2024-11-23 22:37:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 22:37:28,921 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 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 88 [2024-11-23 22:37:28,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:28,934 INFO L225 Difference]: With dead ends: 6959 [2024-11-23 22:37:28,934 INFO L226 Difference]: Without dead ends: 6073 [2024-11-23 22:37:28,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2024-11-23 22:37:28,938 INFO L435 NwaCegarLoop]: 1502 mSDtfsCounter, 18843 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18843 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:28,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18843 Valid, 6479 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:37:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-11-23 22:37:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 6035. [2024-11-23 22:37:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 6033 states have (on average 1.424167081054202) internal successors, (8592), 6034 states have internal predecessors, (8592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 8592 transitions. [2024-11-23 22:37:29,107 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 8592 transitions. Word has length 88 [2024-11-23 22:37:29,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:29,108 INFO L471 AbstractCegarLoop]: Abstraction has 6035 states and 8592 transitions. [2024-11-23 22:37:29,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:29,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 8592 transitions. [2024-11-23 22:37:29,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-23 22:37:29,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:29,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:29,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:37:29,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:29,314 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:29,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1982597732, now seen corresponding path program 1 times [2024-11-23 22:37:29,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:29,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702180228] [2024-11-23 22:37:29,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:29,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:29,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702180228] [2024-11-23 22:37:29,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702180228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144543152] [2024-11-23 22:37:29,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:29,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:29,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:29,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:29,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:37:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:29,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:37:29,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 22:37:30,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 22:37:30,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144543152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:37:30,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:37:30,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-11-23 22:37:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668352497] [2024-11-23 22:37:30,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:30,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:37:30,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:30,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:37:30,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:37:30,387 INFO L87 Difference]: Start difference. First operand 6035 states and 8592 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:33,000 INFO L93 Difference]: Finished difference Result 29109 states and 39053 transitions. [2024-11-23 22:37:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 22:37:33,000 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 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 89 [2024-11-23 22:37:33,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:33,039 INFO L225 Difference]: With dead ends: 29109 [2024-11-23 22:37:33,039 INFO L226 Difference]: Without dead ends: 25389 [2024-11-23 22:37:33,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2024-11-23 22:37:33,047 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 12007 mSDsluCounter, 7984 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12007 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:33,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12007 Valid, 9530 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:37:33,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25389 states. [2024-11-23 22:37:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25389 to 25263. [2024-11-23 22:37:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25263 states, 25261 states have (on average 1.285855666838209) internal successors, (32482), 25262 states have internal predecessors, (32482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25263 states to 25263 states and 32482 transitions. [2024-11-23 22:37:33,777 INFO L78 Accepts]: Start accepts. Automaton has 25263 states and 32482 transitions. Word has length 89 [2024-11-23 22:37:33,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:33,777 INFO L471 AbstractCegarLoop]: Abstraction has 25263 states and 32482 transitions. [2024-11-23 22:37:33,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 25263 states and 32482 transitions. [2024-11-23 22:37:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-23 22:37:33,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:33,780 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:33,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:37:33,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:34,062 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:34,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1775616186, now seen corresponding path program 1 times [2024-11-23 22:37:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:34,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104635828] [2024-11-23 22:37:34,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:34,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:34,929 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:34,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104635828] [2024-11-23 22:37:34,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104635828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679717450] [2024-11-23 22:37:34,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:34,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:34,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:34,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:34,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:37:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:35,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:37:35,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:35,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:36,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679717450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:37:36,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:37:36,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-23 22:37:36,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040953530] [2024-11-23 22:37:36,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:36,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 22:37:36,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:36,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 22:37:36,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:37:36,858 INFO L87 Difference]: Start difference. First operand 25263 states and 32482 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:38,525 INFO L93 Difference]: Finished difference Result 70765 states and 90138 transitions. [2024-11-23 22:37:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:37:38,526 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 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 89 [2024-11-23 22:37:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:38,602 INFO L225 Difference]: With dead ends: 70765 [2024-11-23 22:37:38,602 INFO L226 Difference]: Without dead ends: 48978 [2024-11-23 22:37:38,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-23 22:37:38,620 INFO L435 NwaCegarLoop]: 1518 mSDtfsCounter, 15481 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15481 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:38,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15481 Valid, 6275 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:37:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48978 states. [2024-11-23 22:37:40,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48978 to 48382. [2024-11-23 22:37:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48382 states, 48380 states have (on average 1.2595494005787515) internal successors, (60937), 48381 states have internal predecessors, (60937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48382 states to 48382 states and 60937 transitions. [2024-11-23 22:37:40,868 INFO L78 Accepts]: Start accepts. Automaton has 48382 states and 60937 transitions. Word has length 89 [2024-11-23 22:37:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:40,869 INFO L471 AbstractCegarLoop]: Abstraction has 48382 states and 60937 transitions. [2024-11-23 22:37:40,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 48382 states and 60937 transitions. [2024-11-23 22:37:40,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-23 22:37:40,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:40,872 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:40,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 22:37:41,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:41,080 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2718711, now seen corresponding path program 1 times [2024-11-23 22:37:41,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733134772] [2024-11-23 22:37:41,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:41,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:41,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733134772] [2024-11-23 22:37:41,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733134772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:41,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217139760] [2024-11-23 22:37:41,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:41,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:41,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:41,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:41,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:37:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:41,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 22:37:41,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:42,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:43,698 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:43,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217139760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:37:43,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:37:43,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-23 22:37:43,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389977343] [2024-11-23 22:37:43,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:37:43,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 22:37:43,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:43,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 22:37:43,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:37:43,700 INFO L87 Difference]: Start difference. First operand 48382 states and 60937 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:47,647 INFO L93 Difference]: Finished difference Result 134214 states and 168454 transitions. [2024-11-23 22:37:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:37:47,647 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 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 90 [2024-11-23 22:37:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:47,766 INFO L225 Difference]: With dead ends: 134214 [2024-11-23 22:37:47,766 INFO L226 Difference]: Without dead ends: 95533 [2024-11-23 22:37:47,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 22:37:47,803 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 18111 mSDsluCounter, 4802 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18111 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:47,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18111 Valid, 6323 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 22:37:47,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95533 states. [2024-11-23 22:37:51,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95533 to 94345. [2024-11-23 22:37:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94345 states, 94343 states have (on average 1.2388412494832686) internal successors, (116876), 94344 states have internal predecessors, (116876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94345 states to 94345 states and 116876 transitions. [2024-11-23 22:37:51,175 INFO L78 Accepts]: Start accepts. Automaton has 94345 states and 116876 transitions. Word has length 90 [2024-11-23 22:37:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:51,175 INFO L471 AbstractCegarLoop]: Abstraction has 94345 states and 116876 transitions. [2024-11-23 22:37:51,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:37:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 94345 states and 116876 transitions. [2024-11-23 22:37:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 22:37:51,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:51,178 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:51,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 22:37:51,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-23 22:37:51,383 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:51,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:51,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1519319510, now seen corresponding path program 1 times [2024-11-23 22:37:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:51,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47618238] [2024-11-23 22:37:51,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:51,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:51,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:51,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47618238] [2024-11-23 22:37:51,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47618238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:51,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909076594] [2024-11-23 22:37:51,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:51,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:37:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:51,828 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:37:51,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:37:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:52,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-23 22:37:52,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:40:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:40:05,873 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:40:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:40:15,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909076594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:40:15,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:40:15,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 30] total 67 [2024-11-23 22:40:15,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763679648] [2024-11-23 22:40:15,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:40:15,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-23 22:40:15,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:40:15,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-23 22:40:15,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=742, Invalid=3680, Unknown=0, NotChecked=0, Total=4422 [2024-11-23 22:40:15,769 INFO L87 Difference]: Start difference. First operand 94345 states and 116876 transitions. Second operand has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:40:42,336 WARN L286 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 367 DAG size of output: 273 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 22:40:57,555 WARN L286 SmtUtils]: Spent 13.06s on a formula simplification. DAG size of input: 480 DAG size of output: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 22:41:04,538 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 383 DAG size of output: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 22:42:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:28,360 INFO L93 Difference]: Finished difference Result 208690 states and 259383 transitions. [2024-11-23 22:42:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-11-23 22:42:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 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 91 [2024-11-23 22:42:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:28,473 INFO L225 Difference]: With dead ends: 208690 [2024-11-23 22:42:28,473 INFO L226 Difference]: Without dead ends: 125215 [2024-11-23 22:42:28,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13306 ImplicationChecksByTransitivity, 141.4s TimeCoverageRelationStatistics Valid=7448, Invalid=31558, Unknown=0, NotChecked=0, Total=39006 [2024-11-23 22:42:28,526 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 18610 mSDsluCounter, 31582 mSDsCounter, 0 mSdLazyCounter, 3856 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18610 SdHoareTripleChecker+Valid, 33139 SdHoareTripleChecker+Invalid, 3984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:28,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18610 Valid, 33139 Invalid, 3984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 3856 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-23 22:42:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125215 states. [2024-11-23 22:42:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125215 to 102830. [2024-11-23 22:42:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102830 states, 102828 states have (on average 1.234605360407671) internal successors, (126952), 102829 states have internal predecessors, (126952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:42:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102830 states to 102830 states and 126952 transitions. [2024-11-23 22:42:33,385 INFO L78 Accepts]: Start accepts. Automaton has 102830 states and 126952 transitions. Word has length 91 [2024-11-23 22:42:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:33,386 INFO L471 AbstractCegarLoop]: Abstraction has 102830 states and 126952 transitions. [2024-11-23 22:42:33,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:42:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 102830 states and 126952 transitions. [2024-11-23 22:42:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 22:42:33,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:33,389 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:33,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 22:42:33,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-23 22:42:33,593 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:33,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1473270273, now seen corresponding path program 1 times [2024-11-23 22:42:33,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:42:33,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915566313] [2024-11-23 22:42:33,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:33,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:42:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:42:36,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:42:36,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915566313] [2024-11-23 22:42:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915566313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:36,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118566544] [2024-11-23 22:42:36,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:36,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:42:36,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:42:36,443 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:42:36,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a56203bb-3efd-4d1c-bb87-da66135d8447/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:42:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:36,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 22:42:36,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:42:37,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:39,709 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:42:39,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118566544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:42:39,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:42:39,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 13] total 51 [2024-11-23 22:42:39,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359715161] [2024-11-23 22:42:39,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:42:39,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-23 22:42:39,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:42:39,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-23 22:42:39,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2381, Unknown=0, NotChecked=0, Total=2550 [2024-11-23 22:42:39,712 INFO L87 Difference]: Start difference. First operand 102830 states and 126952 transitions. Second operand has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:43:20,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:20,012 INFO L93 Difference]: Finished difference Result 174662 states and 214986 transitions. [2024-11-23 22:43:20,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2024-11-23 22:43:20,013 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 0 states have call successors, (0), 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 92 [2024-11-23 22:43:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:20,176 INFO L225 Difference]: With dead ends: 174662 [2024-11-23 22:43:20,176 INFO L226 Difference]: Without dead ends: 141426 [2024-11-23 22:43:20,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15952 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=7853, Invalid=40767, Unknown=0, NotChecked=0, Total=48620 [2024-11-23 22:43:20,200 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 25982 mSDsluCounter, 35558 mSDsCounter, 0 mSdLazyCounter, 8047 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25982 SdHoareTripleChecker+Valid, 37239 SdHoareTripleChecker+Invalid, 8175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 8047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:20,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25982 Valid, 37239 Invalid, 8175 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [128 Valid, 8047 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-23 22:43:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141426 states.