./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbc1afdc0c527a20ea946075190a27bee4243d56a1bede1487b2df57b3410a93 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:11:02,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:11:02,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:11:02,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:11:02,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:11:02,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:11:02,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:11:02,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:11:02,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:11:02,515 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:11:02,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:11:02,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:11:02,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:11:02,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:11:02,517 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:11:02,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:11:02,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:11:02,519 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:11:02,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:11:02,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:11:02,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:11:02,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:11:02,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:11:02,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:11:02,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:11:02,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:11:02,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:11:02,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:11:02,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:11:02,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:11:02,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:11:02,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:11:02,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:11:02,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:11:02,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:11:02,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:11:02,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:11:02,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:11:02,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:11:02,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:11:02,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:11:02,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:11:02,534 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc1afdc0c527a20ea946075190a27bee4243d56a1bede1487b2df57b3410a93 [2024-11-08 19:11:02,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:11:02,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:11:02,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:11:02,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:11:02,887 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:11:02,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 19:11:04,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:11:05,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:11:05,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-08 19:11:05,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/data/7ad9a51c7/6d6e15221f624ab4897e5fd3609f5a1c/FLAG65edb63e4 [2024-11-08 19:11:05,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/data/7ad9a51c7/6d6e15221f624ab4897e5fd3609f5a1c [2024-11-08 19:11:05,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:11:05,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:11:05,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:11:05,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:11:05,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:11:05,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:11:05" (1/1) ... [2024-11-08 19:11:05,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fefc67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:05, skipping insertion in model container [2024-11-08 19:11:05,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:11:05" (1/1) ... [2024-11-08 19:11:05,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:11:05,669 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_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10019,10032] [2024-11-08 19:11:05,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:11:05,832 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:11:05,911 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_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10019,10032] [2024-11-08 19:11:06,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:11:06,052 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:11:06,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06 WrapperNode [2024-11-08 19:11:06,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:11:06,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:11:06,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:11:06,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:11:06,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,136 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1047 [2024-11-08 19:11:06,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:11:06,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:11:06,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:11:06,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:11:06,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,201 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:11:06,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:11:06,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:11:06,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:11:06,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:11:06,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (1/1) ... [2024-11-08 19:11:06,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:11:06,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:06,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:11:06,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72e4f0b5-996e-4c1d-92a3-3cad93bd9ac5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:11:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:11:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:11:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:11:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:11:06,519 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:11:06,521 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:11:07,596 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-08 19:11:07,597 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:11:07,626 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:11:07,626 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:11:07,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:11:07 BoogieIcfgContainer [2024-11-08 19:11:07,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:11:07,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:11:07,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:11:07,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:11:07,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:11:05" (1/3) ... [2024-11-08 19:11:07,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7244a635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:11:07, skipping insertion in model container [2024-11-08 19:11:07,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:11:06" (2/3) ... [2024-11-08 19:11:07,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7244a635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:11:07, skipping insertion in model container [2024-11-08 19:11:07,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:11:07" (3/3) ... [2024-11-08 19:11:07,641 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-08 19:11:07,661 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:11:07,661 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:11:07,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:11:07,762 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;@2e4dac1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:11:07,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:11:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 257 states have (on average 1.7237354085603114) internal successors, (443), 258 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 19:11:07,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:07,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:07,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:07,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 891906329, now seen corresponding path program 1 times [2024-11-08 19:11:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:07,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124956162] [2024-11-08 19:11:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:07,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:08,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124956162] [2024-11-08 19:11:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124956162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:11:08,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321266727] [2024-11-08 19:11:08,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:08,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:11:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:08,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:11:08,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:11:08,911 INFO L87 Difference]: Start difference. First operand has 259 states, 257 states have (on average 1.7237354085603114) internal successors, (443), 258 states have internal predecessors, (443), 0 states have call successors, (0), 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 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:09,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:09,337 INFO L93 Difference]: Finished difference Result 1164 states and 1888 transitions. [2024-11-08 19:11:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:11:09,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-08 19:11:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:09,358 INFO L225 Difference]: With dead ends: 1164 [2024-11-08 19:11:09,358 INFO L226 Difference]: Without dead ends: 1023 [2024-11-08 19:11:09,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:11:09,365 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 3889 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:09,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 3985 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:11:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-08 19:11:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 396. [2024-11-08 19:11:09,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.5012658227848101) internal successors, (593), 395 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 593 transitions. [2024-11-08 19:11:09,440 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 593 transitions. Word has length 97 [2024-11-08 19:11:09,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:09,441 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 593 transitions. [2024-11-08 19:11:09,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 593 transitions. [2024-11-08 19:11:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 19:11:09,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:09,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:09,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:11:09,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:09,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1536603989, now seen corresponding path program 1 times [2024-11-08 19:11:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798303513] [2024-11-08 19:11:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:10,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:10,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798303513] [2024-11-08 19:11:10,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798303513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:10,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:10,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:11:10,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638915914] [2024-11-08 19:11:10,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:10,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:11:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:10,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:11:10,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:11:10,072 INFO L87 Difference]: Start difference. First operand 396 states and 593 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:10,528 INFO L93 Difference]: Finished difference Result 1973 states and 3057 transitions. [2024-11-08 19:11:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:11:10,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-08 19:11:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:10,536 INFO L225 Difference]: With dead ends: 1973 [2024-11-08 19:11:10,537 INFO L226 Difference]: Without dead ends: 1677 [2024-11-08 19:11:10,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:11:10,543 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 2070 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:10,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 2127 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:11:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-08 19:11:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1667. [2024-11-08 19:11:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1666 states have (on average 1.546218487394958) internal successors, (2576), 1666 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2576 transitions. [2024-11-08 19:11:10,636 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2576 transitions. Word has length 98 [2024-11-08 19:11:10,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:10,637 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2576 transitions. [2024-11-08 19:11:10,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2576 transitions. [2024-11-08 19:11:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:11:10,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:10,645 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:10,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:11:10,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:10,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash 520748387, now seen corresponding path program 1 times [2024-11-08 19:11:10,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:10,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537504741] [2024-11-08 19:11:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:10,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:10,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:10,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537504741] [2024-11-08 19:11:10,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537504741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:10,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:10,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:10,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889477731] [2024-11-08 19:11:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:10,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:10,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:10,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:10,900 INFO L87 Difference]: Start difference. First operand 1667 states and 2576 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:11,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:11,363 INFO L93 Difference]: Finished difference Result 4413 states and 6892 transitions. [2024-11-08 19:11:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:11,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:11:11,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:11,379 INFO L225 Difference]: With dead ends: 4413 [2024-11-08 19:11:11,379 INFO L226 Difference]: Without dead ends: 2867 [2024-11-08 19:11:11,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:11:11,384 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1392 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:11,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 357 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:11:11,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2024-11-08 19:11:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2865. [2024-11-08 19:11:11,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 1.5534217877094971) internal successors, (4449), 2864 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 4449 transitions. [2024-11-08 19:11:11,484 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 4449 transitions. Word has length 99 [2024-11-08 19:11:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:11,484 INFO L471 AbstractCegarLoop]: Abstraction has 2865 states and 4449 transitions. [2024-11-08 19:11:11,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:11,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 4449 transitions. [2024-11-08 19:11:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:11:11,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:11,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:11,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:11:11,497 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:11,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:11,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1043155442, now seen corresponding path program 1 times [2024-11-08 19:11:11,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:11,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785623968] [2024-11-08 19:11:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:11,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:11,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:11,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785623968] [2024-11-08 19:11:11,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785623968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:11,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:11,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:11,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248608738] [2024-11-08 19:11:11,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:11,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:11,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:11,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:11,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:11,773 INFO L87 Difference]: Start difference. First operand 2865 states and 4449 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:12,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:12,206 INFO L93 Difference]: Finished difference Result 7872 states and 12314 transitions. [2024-11-08 19:11:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:12,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:11:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:12,225 INFO L225 Difference]: With dead ends: 7872 [2024-11-08 19:11:12,225 INFO L226 Difference]: Without dead ends: 5165 [2024-11-08 19:11:12,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:11:12,234 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1350 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:12,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 361 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:11:12,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2024-11-08 19:11:12,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 5163. [2024-11-08 19:11:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 1.5561797752808988) internal successors, (8033), 5162 states have internal predecessors, (8033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 8033 transitions. [2024-11-08 19:11:12,393 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 8033 transitions. Word has length 99 [2024-11-08 19:11:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:12,394 INFO L471 AbstractCegarLoop]: Abstraction has 5163 states and 8033 transitions. [2024-11-08 19:11:12,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 8033 transitions. [2024-11-08 19:11:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:11:12,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:12,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:12,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:11:12,399 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:12,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:12,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1397069631, now seen corresponding path program 1 times [2024-11-08 19:11:12,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:12,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181942275] [2024-11-08 19:11:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:12,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:12,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:12,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181942275] [2024-11-08 19:11:12,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181942275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:12,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:12,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437155857] [2024-11-08 19:11:12,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:12,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:12,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:12,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:12,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:12,620 INFO L87 Difference]: Start difference. First operand 5163 states and 8033 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:13,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:13,085 INFO L93 Difference]: Finished difference Result 14689 states and 22985 transitions. [2024-11-08 19:11:13,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:13,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:11:13,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:13,116 INFO L225 Difference]: With dead ends: 14689 [2024-11-08 19:11:13,116 INFO L226 Difference]: Without dead ends: 9725 [2024-11-08 19:11:13,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:11:13,124 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1336 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:13,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 370 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:11:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9725 states. [2024-11-08 19:11:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9725 to 9723. [2024-11-08 19:11:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9723 states, 9722 states have (on average 1.5584241925529727) internal successors, (15151), 9722 states have internal predecessors, (15151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9723 states to 9723 states and 15151 transitions. [2024-11-08 19:11:13,390 INFO L78 Accepts]: Start accepts. Automaton has 9723 states and 15151 transitions. Word has length 99 [2024-11-08 19:11:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:13,391 INFO L471 AbstractCegarLoop]: Abstraction has 9723 states and 15151 transitions. [2024-11-08 19:11:13,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:13,392 INFO L276 IsEmpty]: Start isEmpty. Operand 9723 states and 15151 transitions. [2024-11-08 19:11:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:11:13,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:13,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:13,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:11:13,396 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:13,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2146829076, now seen corresponding path program 1 times [2024-11-08 19:11:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:13,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279546779] [2024-11-08 19:11:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:13,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:13,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:13,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:13,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279546779] [2024-11-08 19:11:13,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279546779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:13,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:13,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:13,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642088091] [2024-11-08 19:11:13,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:13,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:13,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:13,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:13,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:13,593 INFO L87 Difference]: Start difference. First operand 9723 states and 15151 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:14,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:14,145 INFO L93 Difference]: Finished difference Result 28649 states and 44743 transitions. [2024-11-08 19:11:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:14,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:11:14,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:14,201 INFO L225 Difference]: With dead ends: 28649 [2024-11-08 19:11:14,201 INFO L226 Difference]: Without dead ends: 19017 [2024-11-08 19:11:14,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:11:14,217 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1406 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:14,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 355 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:11:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19017 states. [2024-11-08 19:11:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19017 to 19015. [2024-11-08 19:11:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19015 states, 19014 states have (on average 1.554380982433996) internal successors, (29555), 19014 states have internal predecessors, (29555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:14,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19015 states to 19015 states and 29555 transitions. [2024-11-08 19:11:14,695 INFO L78 Accepts]: Start accepts. Automaton has 19015 states and 29555 transitions. Word has length 99 [2024-11-08 19:11:14,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:14,696 INFO L471 AbstractCegarLoop]: Abstraction has 19015 states and 29555 transitions. [2024-11-08 19:11:14,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19015 states and 29555 transitions. [2024-11-08 19:11:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:11:14,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:14,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:14,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:11:14,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:14,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1517888763, now seen corresponding path program 1 times [2024-11-08 19:11:14,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:14,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489207501] [2024-11-08 19:11:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:14,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:14,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489207501] [2024-11-08 19:11:14,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489207501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:14,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:14,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:14,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354632879] [2024-11-08 19:11:14,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:14,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:14,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:14,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:14,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:14,880 INFO L87 Difference]: Start difference. First operand 19015 states and 29555 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:15,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:15,592 INFO L93 Difference]: Finished difference Result 56572 states and 88040 transitions. [2024-11-08 19:11:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:15,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:11:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:15,679 INFO L225 Difference]: With dead ends: 56572 [2024-11-08 19:11:15,679 INFO L226 Difference]: Without dead ends: 37625 [2024-11-08 19:11:15,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:11:15,708 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1428 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:15,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 355 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:11:15,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37625 states. [2024-11-08 19:11:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37625 to 37623. [2024-11-08 19:11:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37623 states, 37622 states have (on average 1.548030407740152) internal successors, (58240), 37622 states have internal predecessors, (58240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37623 states to 37623 states and 58240 transitions. [2024-11-08 19:11:16,583 INFO L78 Accepts]: Start accepts. Automaton has 37623 states and 58240 transitions. Word has length 99 [2024-11-08 19:11:16,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:16,583 INFO L471 AbstractCegarLoop]: Abstraction has 37623 states and 58240 transitions. [2024-11-08 19:11:16,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:16,584 INFO L276 IsEmpty]: Start isEmpty. Operand 37623 states and 58240 transitions. [2024-11-08 19:11:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 19:11:16,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:16,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:16,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:11:16,595 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:16,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1740503754, now seen corresponding path program 1 times [2024-11-08 19:11:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:16,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121520954] [2024-11-08 19:11:16,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:16,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:16,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:16,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121520954] [2024-11-08 19:11:16,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121520954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:16,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:16,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:16,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418473101] [2024-11-08 19:11:16,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:16,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:16,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:16,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:16,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:16,998 INFO L87 Difference]: Start difference. First operand 37623 states and 58240 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:17,778 INFO L93 Difference]: Finished difference Result 107195 states and 166076 transitions. [2024-11-08 19:11:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:17,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-08 19:11:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:18,012 INFO L225 Difference]: With dead ends: 107195 [2024-11-08 19:11:18,012 INFO L226 Difference]: Without dead ends: 69624 [2024-11-08 19:11:18,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:11:18,040 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1454 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:18,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 353 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:11:18,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69624 states. [2024-11-08 19:11:19,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69624 to 69622. [2024-11-08 19:11:19,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69622 states, 69621 states have (on average 1.5395498484652619) internal successors, (107185), 69621 states have internal predecessors, (107185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69622 states to 69622 states and 107185 transitions. [2024-11-08 19:11:19,728 INFO L78 Accepts]: Start accepts. Automaton has 69622 states and 107185 transitions. Word has length 99 [2024-11-08 19:11:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:19,732 INFO L471 AbstractCegarLoop]: Abstraction has 69622 states and 107185 transitions. [2024-11-08 19:11:19,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 69622 states and 107185 transitions. [2024-11-08 19:11:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 19:11:19,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:19,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:19,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:11:19,763 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:19,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1377652457, now seen corresponding path program 1 times [2024-11-08 19:11:19,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:19,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807512192] [2024-11-08 19:11:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:20,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:20,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807512192] [2024-11-08 19:11:20,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807512192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:20,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:20,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:11:20,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122626209] [2024-11-08 19:11:20,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:20,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:11:20,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:11:20,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:20,433 INFO L87 Difference]: Start difference. First operand 69622 states and 107185 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:20,833 INFO L93 Difference]: Finished difference Result 71032 states and 109298 transitions. [2024-11-08 19:11:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:11:20,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-08 19:11:20,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:20,948 INFO L225 Difference]: With dead ends: 71032 [2024-11-08 19:11:20,949 INFO L226 Difference]: Without dead ends: 71030 [2024-11-08 19:11:20,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:11:20,960 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:20,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1402 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:11:20,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71030 states. [2024-11-08 19:11:21,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71030 to 71030. [2024-11-08 19:11:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71030 states, 71029 states have (on average 1.5288544115783693) internal successors, (108593), 71029 states have internal predecessors, (108593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:22,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71030 states to 71030 states and 108593 transitions. [2024-11-08 19:11:22,362 INFO L78 Accepts]: Start accepts. Automaton has 71030 states and 108593 transitions. Word has length 100 [2024-11-08 19:11:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:22,363 INFO L471 AbstractCegarLoop]: Abstraction has 71030 states and 108593 transitions. [2024-11-08 19:11:22,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 71030 states and 108593 transitions. [2024-11-08 19:11:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 19:11:22,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:22,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:22,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:11:22,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:22,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash 101785651, now seen corresponding path program 1 times [2024-11-08 19:11:22,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:22,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257118153] [2024-11-08 19:11:22,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:22,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:23,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:23,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:23,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257118153] [2024-11-08 19:11:23,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257118153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:23,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:23,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:11:23,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744187774] [2024-11-08 19:11:23,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:23,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:11:23,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:23,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:11:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:11:23,105 INFO L87 Difference]: Start difference. First operand 71030 states and 108593 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:24,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:24,796 INFO L93 Difference]: Finished difference Result 128605 states and 195525 transitions. [2024-11-08 19:11:24,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:11:24,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-08 19:11:24,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:24,943 INFO L225 Difference]: With dead ends: 128605 [2024-11-08 19:11:24,943 INFO L226 Difference]: Without dead ends: 94221 [2024-11-08 19:11:24,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:11:24,986 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1618 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:24,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 1131 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:11:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94221 states. [2024-11-08 19:11:26,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94221 to 71655. [2024-11-08 19:11:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71655 states, 71654 states have (on average 1.5277863064169481) internal successors, (109472), 71654 states have internal predecessors, (109472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71655 states to 71655 states and 109472 transitions. [2024-11-08 19:11:26,650 INFO L78 Accepts]: Start accepts. Automaton has 71655 states and 109472 transitions. Word has length 101 [2024-11-08 19:11:26,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:26,650 INFO L471 AbstractCegarLoop]: Abstraction has 71655 states and 109472 transitions. [2024-11-08 19:11:26,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:26,650 INFO L276 IsEmpty]: Start isEmpty. Operand 71655 states and 109472 transitions. [2024-11-08 19:11:26,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 19:11:26,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:26,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:26,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:11:26,664 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:26,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:26,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1744765011, now seen corresponding path program 1 times [2024-11-08 19:11:26,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:26,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757611766] [2024-11-08 19:11:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:26,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:27,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:27,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757611766] [2024-11-08 19:11:27,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757611766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:27,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:27,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:11:27,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052382978] [2024-11-08 19:11:27,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:27,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:11:27,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:27,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:11:27,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:11:27,416 INFO L87 Difference]: Start difference. First operand 71655 states and 109472 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:28,167 INFO L93 Difference]: Finished difference Result 202635 states and 308962 transitions. [2024-11-08 19:11:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:11:28,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-08 19:11:28,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:28,365 INFO L225 Difference]: With dead ends: 202635 [2024-11-08 19:11:28,365 INFO L226 Difference]: Without dead ends: 133385 [2024-11-08 19:11:28,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:11:28,438 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 248 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:28,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1006 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:11:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133385 states. [2024-11-08 19:11:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133385 to 133383. [2024-11-08 19:11:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133383 states, 133382 states have (on average 1.5169663072978363) internal successors, (202336), 133382 states have internal predecessors, (202336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133383 states to 133383 states and 202336 transitions. [2024-11-08 19:11:30,886 INFO L78 Accepts]: Start accepts. Automaton has 133383 states and 202336 transitions. Word has length 101 [2024-11-08 19:11:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:30,887 INFO L471 AbstractCegarLoop]: Abstraction has 133383 states and 202336 transitions. [2024-11-08 19:11:30,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 133383 states and 202336 transitions. [2024-11-08 19:11:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 19:11:30,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:30,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:30,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:11:30,905 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:30,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:30,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1461679126, now seen corresponding path program 1 times [2024-11-08 19:11:30,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:30,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541737732] [2024-11-08 19:11:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:30,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:31,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:31,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541737732] [2024-11-08 19:11:31,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541737732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:31,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:31,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:11:31,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361832127] [2024-11-08 19:11:31,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:31,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:31,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:31,010 INFO L87 Difference]: Start difference. First operand 133383 states and 202336 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:32,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:32,192 INFO L93 Difference]: Finished difference Result 211293 states and 320468 transitions. [2024-11-08 19:11:32,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:32,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-08 19:11:32,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:32,396 INFO L225 Difference]: With dead ends: 211293 [2024-11-08 19:11:32,396 INFO L226 Difference]: Without dead ends: 157087 [2024-11-08 19:11:32,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:32,444 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 215 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:32,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 852 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:11:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157087 states. [2024-11-08 19:11:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157087 to 155953. [2024-11-08 19:11:34,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155953 states, 155952 states have (on average 1.501179850210321) internal successors, (234112), 155952 states have internal predecessors, (234112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155953 states to 155953 states and 234112 transitions. [2024-11-08 19:11:35,233 INFO L78 Accepts]: Start accepts. Automaton has 155953 states and 234112 transitions. Word has length 102 [2024-11-08 19:11:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:35,233 INFO L471 AbstractCegarLoop]: Abstraction has 155953 states and 234112 transitions. [2024-11-08 19:11:35,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 155953 states and 234112 transitions. [2024-11-08 19:11:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 19:11:35,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:35,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:35,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:11:35,257 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:35,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:35,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1456323146, now seen corresponding path program 1 times [2024-11-08 19:11:35,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:35,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847173454] [2024-11-08 19:11:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:35,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:35,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:35,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847173454] [2024-11-08 19:11:35,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847173454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:35,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:35,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:11:35,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833367314] [2024-11-08 19:11:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:35,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:35,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:35,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:35,370 INFO L87 Difference]: Start difference. First operand 155953 states and 234112 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:37,295 INFO L93 Difference]: Finished difference Result 363018 states and 545059 transitions. [2024-11-08 19:11:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:37,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-08 19:11:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:37,585 INFO L225 Difference]: With dead ends: 363018 [2024-11-08 19:11:37,585 INFO L226 Difference]: Without dead ends: 218682 [2024-11-08 19:11:37,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:37,640 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 258 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:37,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 683 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218682 states. [2024-11-08 19:11:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218682 to 218296. [2024-11-08 19:11:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218296 states, 218295 states have (on average 1.490350214159738) internal successors, (325336), 218295 states have internal predecessors, (325336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218296 states to 218296 states and 325336 transitions. [2024-11-08 19:11:41,700 INFO L78 Accepts]: Start accepts. Automaton has 218296 states and 325336 transitions. Word has length 102 [2024-11-08 19:11:41,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:41,700 INFO L471 AbstractCegarLoop]: Abstraction has 218296 states and 325336 transitions. [2024-11-08 19:11:41,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 218296 states and 325336 transitions. [2024-11-08 19:11:41,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 19:11:41,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:41,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:41,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:11:41,772 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:41,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash -731878665, now seen corresponding path program 1 times [2024-11-08 19:11:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:41,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887734592] [2024-11-08 19:11:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:41,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:42,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:42,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887734592] [2024-11-08 19:11:42,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887734592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:42,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:42,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:11:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770820974] [2024-11-08 19:11:42,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:42,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:11:42,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:11:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:42,038 INFO L87 Difference]: Start difference. First operand 218296 states and 325336 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:11:44,233 INFO L93 Difference]: Finished difference Result 500270 states and 744290 transitions. [2024-11-08 19:11:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:11:44,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-08 19:11:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:11:44,693 INFO L225 Difference]: With dead ends: 500270 [2024-11-08 19:11:44,693 INFO L226 Difference]: Without dead ends: 294338 [2024-11-08 19:11:44,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:11:44,768 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 246 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:11:44,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 681 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:11:44,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294338 states. [2024-11-08 19:11:48,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294338 to 292895. [2024-11-08 19:11:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292895 states, 292894 states have (on average 1.4717064876713077) internal successors, (431054), 292894 states have internal predecessors, (431054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:49,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292895 states to 292895 states and 431054 transitions. [2024-11-08 19:11:49,683 INFO L78 Accepts]: Start accepts. Automaton has 292895 states and 431054 transitions. Word has length 102 [2024-11-08 19:11:49,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:11:49,684 INFO L471 AbstractCegarLoop]: Abstraction has 292895 states and 431054 transitions. [2024-11-08 19:11:49,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:11:49,684 INFO L276 IsEmpty]: Start isEmpty. Operand 292895 states and 431054 transitions. [2024-11-08 19:11:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 19:11:49,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:11:49,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:49,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:11:49,708 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:11:49,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash 854431734, now seen corresponding path program 1 times [2024-11-08 19:11:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:49,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025929587] [2024-11-08 19:11:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:11:49,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:49,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025929587] [2024-11-08 19:11:49,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025929587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:49,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:49,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 19:11:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662638165] [2024-11-08 19:11:49,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:49,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:11:49,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:49,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:11:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:11:49,978 INFO L87 Difference]: Start difference. First operand 292895 states and 431054 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)