./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/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_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/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_47dcf72f-4a5d-498b-8db8-346722fbf330/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 4813005008457a5d4e6ae5277d71ca9796b28c553541eb8e67cfaf33286f04c4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:53:39,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:53:39,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:53:39,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:53:39,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:53:39,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:53:39,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:53:39,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:53:39,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:53:39,658 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:53:39,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:53:39,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:53:39,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:53:39,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:53:39,661 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:53:39,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:53:39,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:53:39,665 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:53:39,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:53:39,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:53:39,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:53:39,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:53:39,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:53:39,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:53:39,668 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:53:39,668 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:53:39,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:53:39,669 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:53:39,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:53:39,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:53:39,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:53:39,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:53:39,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:53:39,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:53:39,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:53:39,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:53:39,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:53:39,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:53:39,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:53:39,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:53:39,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:53:39,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:53:39,674 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_47dcf72f-4a5d-498b-8db8-346722fbf330/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4813005008457a5d4e6ae5277d71ca9796b28c553541eb8e67cfaf33286f04c4 [2024-11-08 18:53:39,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:53:39,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:53:39,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:53:39,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:53:39,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:53:39,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/eca-rers2012/Problem17_label22.c Unable to find full path for "g++" [2024-11-08 18:53:42,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:53:42,433 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:53:42,434 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/sv-benchmarks/c/eca-rers2012/Problem17_label22.c [2024-11-08 18:53:42,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/data/db4a7524b/58bc4aaf1b014bb09039421a3ba22590/FLAGd30835797 [2024-11-08 18:53:42,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/data/db4a7524b/58bc4aaf1b014bb09039421a3ba22590 [2024-11-08 18:53:42,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:53:42,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:53:42,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:53:42,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:53:42,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:53:42,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:53:42" (1/1) ... [2024-11-08 18:53:42,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d1e8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:42, skipping insertion in model container [2024-11-08 18:53:42,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:53:42" (1/1) ... [2024-11-08 18:53:42,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:53:43,095 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_47dcf72f-4a5d-498b-8db8-346722fbf330/sv-benchmarks/c/eca-rers2012/Problem17_label22.c[7589,7602] [2024-11-08 18:53:43,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:53:43,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:53:43,922 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_47dcf72f-4a5d-498b-8db8-346722fbf330/sv-benchmarks/c/eca-rers2012/Problem17_label22.c[7589,7602] [2024-11-08 18:53:44,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:53:44,325 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:53:44,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44 WrapperNode [2024-11-08 18:53:44,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:53:44,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:53:44,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:53:44,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:53:44,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:44,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:44,704 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-08 18:53:44,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:53:44,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:53:44,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:53:44,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:53:44,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:44,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:44,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,051 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 18:53:45,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:53:45,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:53:45,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:53:45,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:53:45,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (1/1) ... [2024-11-08 18:53:45,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:53:45,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:45,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:53:45,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:53:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:53:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:53:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:53:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:53:45,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:53:45,488 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:53:50,163 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-08 18:53:50,164 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:53:50,188 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:53:50,189 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:53:50,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:53:50 BoogieIcfgContainer [2024-11-08 18:53:50,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:53:50,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:53:50,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:53:50,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:53:50,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:53:42" (1/3) ... [2024-11-08 18:53:50,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5195b494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:53:50, skipping insertion in model container [2024-11-08 18:53:50,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:53:44" (2/3) ... [2024-11-08 18:53:50,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5195b494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:53:50, skipping insertion in model container [2024-11-08 18:53:50,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:53:50" (3/3) ... [2024-11-08 18:53:50,198 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label22.c [2024-11-08 18:53:50,216 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:53:50,216 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:53:50,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:53:50,298 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;@7b37f3c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:53:50,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:53:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:53:50,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 18:53:50,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:50,317 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] [2024-11-08 18:53:50,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:50,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:50,325 INFO L85 PathProgramCache]: Analyzing trace with hash 699168448, now seen corresponding path program 1 times [2024-11-08 18:53:50,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:50,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167884719] [2024-11-08 18:53:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:50,779 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 18:53:50,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:50,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167884719] [2024-11-08 18:53:50,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167884719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:50,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:50,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:53:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865930963] [2024-11-08 18:53:50,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:50,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:53:50,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:50,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:53:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:53:50,822 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 18:53:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:54,267 INFO L93 Difference]: Finished difference Result 1642 states and 3024 transitions. [2024-11-08 18:53:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:53:54,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-08 18:53:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:54,286 INFO L225 Difference]: With dead ends: 1642 [2024-11-08 18:53:54,286 INFO L226 Difference]: Without dead ends: 975 [2024-11-08 18:53:54,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:53:54,295 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 439 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:54,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 550 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 18:53:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-08 18:53:54,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 972. [2024-11-08 18:53:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.5077239958805355) internal successors, (1464), 971 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states 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 18:53:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1464 transitions. [2024-11-08 18:53:54,404 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1464 transitions. Word has length 51 [2024-11-08 18:53:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:54,405 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1464 transitions. [2024-11-08 18:53:54,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 18:53:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1464 transitions. [2024-11-08 18:53:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:53:54,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:54,410 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:54,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:53:54,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:54,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:54,411 INFO L85 PathProgramCache]: Analyzing trace with hash 23724307, now seen corresponding path program 1 times [2024-11-08 18:53:54,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:54,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461414175] [2024-11-08 18:53:54,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:54,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:54,853 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:53:54,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:54,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461414175] [2024-11-08 18:53:54,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461414175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:54,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:54,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:53:54,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891788698] [2024-11-08 18:53:54,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:53:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:54,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:53:54,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:53:54,861 INFO L87 Difference]: Start difference. First operand 972 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 18:53:57,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:57,956 INFO L93 Difference]: Finished difference Result 2814 states and 4242 transitions. [2024-11-08 18:53:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:53:57,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-08 18:53:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:57,964 INFO L225 Difference]: With dead ends: 2814 [2024-11-08 18:53:57,964 INFO L226 Difference]: Without dead ends: 1844 [2024-11-08 18:53:57,967 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 18:53:57,968 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 440 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:57,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 921 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:53:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-08 18:53:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1842. [2024-11-08 18:53:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 1.3601303639326452) internal successors, (2504), 1841 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states 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 18:53:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2504 transitions. [2024-11-08 18:53:58,026 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2504 transitions. Word has length 121 [2024-11-08 18:53:58,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:58,027 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2504 transitions. [2024-11-08 18:53:58,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 18:53:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2504 transitions. [2024-11-08 18:53:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 18:53:58,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:58,031 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:58,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:53:58,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:58,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:58,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1823476336, now seen corresponding path program 1 times [2024-11-08 18:53:58,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:58,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793804869] [2024-11-08 18:53:58,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:58,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:53:58,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:58,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793804869] [2024-11-08 18:53:58,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793804869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:58,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:58,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:53:58,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408666763] [2024-11-08 18:53:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:58,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:53:58,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:58,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:53:58,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:53:58,310 INFO L87 Difference]: Start difference. First operand 1842 states and 2504 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 18:54:01,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:01,390 INFO L93 Difference]: Finished difference Result 4557 states and 6338 transitions. [2024-11-08 18:54:01,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:01,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-08 18:54:01,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:01,399 INFO L225 Difference]: With dead ends: 4557 [2024-11-08 18:54:01,399 INFO L226 Difference]: Without dead ends: 2717 [2024-11-08 18:54:01,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:01,406 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 380 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:01,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 461 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:54:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2024-11-08 18:54:01,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2711. [2024-11-08 18:54:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.3003690036900368) internal successors, (3524), 2710 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states 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 18:54:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3524 transitions. [2024-11-08 18:54:01,473 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3524 transitions. Word has length 143 [2024-11-08 18:54:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:01,474 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3524 transitions. [2024-11-08 18:54:01,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 18:54:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3524 transitions. [2024-11-08 18:54:01,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-08 18:54:01,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:01,483 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:01,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:54:01,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:01,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1633726084, now seen corresponding path program 1 times [2024-11-08 18:54:01,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:01,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747577952] [2024-11-08 18:54:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:01,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 18:54:01,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:01,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747577952] [2024-11-08 18:54:01,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747577952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:01,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:01,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:54:01,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989132575] [2024-11-08 18:54:01,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:01,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:01,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:01,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:01,850 INFO L87 Difference]: Start difference. First operand 2711 states and 3524 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 18:54:04,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:04,465 INFO L93 Difference]: Finished difference Result 7984 states and 10361 transitions. [2024-11-08 18:54:04,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:04,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 190 [2024-11-08 18:54:04,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:04,479 INFO L225 Difference]: With dead ends: 7984 [2024-11-08 18:54:04,479 INFO L226 Difference]: Without dead ends: 4421 [2024-11-08 18:54:04,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:04,530 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:04,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 18:54:04,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2024-11-08 18:54:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 3571. [2024-11-08 18:54:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3570 states have (on average 1.1775910364145659) internal successors, (4204), 3570 states have internal predecessors, (4204), 0 states have call successors, (0), 0 states 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 18:54:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4204 transitions. [2024-11-08 18:54:04,671 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4204 transitions. Word has length 190 [2024-11-08 18:54:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:04,672 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 4204 transitions. [2024-11-08 18:54:04,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 18:54:04,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4204 transitions. [2024-11-08 18:54:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-08 18:54:04,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:04,676 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:04,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:54:04,677 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:04,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:04,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1360770659, now seen corresponding path program 1 times [2024-11-08 18:54:04,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:04,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798005535] [2024-11-08 18:54:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:04,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:54:05,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:05,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798005535] [2024-11-08 18:54:05,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798005535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:05,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:05,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:05,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637535324] [2024-11-08 18:54:05,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:05,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:05,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:05,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:05,104 INFO L87 Difference]: Start difference. First operand 3571 states and 4204 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states 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 18:54:07,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:07,487 INFO L93 Difference]: Finished difference Result 9273 states and 11087 transitions. [2024-11-08 18:54:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 203 [2024-11-08 18:54:07,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:07,503 INFO L225 Difference]: With dead ends: 9273 [2024-11-08 18:54:07,503 INFO L226 Difference]: Without dead ends: 5704 [2024-11-08 18:54:07,508 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 18:54:07,509 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:07,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 783 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:54:07,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2024-11-08 18:54:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5704. [2024-11-08 18:54:07,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 1.1595651411537786) internal successors, (6613), 5703 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states 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 18:54:07,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 6613 transitions. [2024-11-08 18:54:07,644 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 6613 transitions. Word has length 203 [2024-11-08 18:54:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:07,645 INFO L471 AbstractCegarLoop]: Abstraction has 5704 states and 6613 transitions. [2024-11-08 18:54:07,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states 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 18:54:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 6613 transitions. [2024-11-08 18:54:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-08 18:54:07,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:07,650 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:07,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:54:07,651 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:07,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:07,652 INFO L85 PathProgramCache]: Analyzing trace with hash -709275806, now seen corresponding path program 1 times [2024-11-08 18:54:07,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:07,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042679764] [2024-11-08 18:54:07,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:07,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,928 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 18:54:07,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:07,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042679764] [2024-11-08 18:54:07,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042679764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:07,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:07,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819725013] [2024-11-08 18:54:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:07,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:07,933 INFO L87 Difference]: Start difference. First operand 5704 states and 6613 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 18:54:10,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:10,030 INFO L93 Difference]: Finished difference Result 14376 states and 16776 transitions. [2024-11-08 18:54:10,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:10,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 205 [2024-11-08 18:54:10,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:10,053 INFO L225 Difference]: With dead ends: 14376 [2024-11-08 18:54:10,054 INFO L226 Difference]: Without dead ends: 8673 [2024-11-08 18:54:10,060 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 18:54:10,061 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 400 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:10,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 444 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 18:54:10,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2024-11-08 18:54:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 5677. [2024-11-08 18:54:10,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5676 states have (on average 1.1578576462297392) internal successors, (6572), 5676 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states 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 18:54:10,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 6572 transitions. [2024-11-08 18:54:10,233 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 6572 transitions. Word has length 205 [2024-11-08 18:54:10,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:10,233 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 6572 transitions. [2024-11-08 18:54:10,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 18:54:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 6572 transitions. [2024-11-08 18:54:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-08 18:54:10,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:10,239 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:10,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:54:10,239 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:10,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2055728128, now seen corresponding path program 1 times [2024-11-08 18:54:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:10,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305200900] [2024-11-08 18:54:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:10,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-08 18:54:10,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:10,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305200900] [2024-11-08 18:54:10,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305200900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:10,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:10,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:10,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270011554] [2024-11-08 18:54:10,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:10,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:10,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:10,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:10,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:10,515 INFO L87 Difference]: Start difference. First operand 5677 states and 6572 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 18:54:12,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:12,878 INFO L93 Difference]: Finished difference Result 14315 states and 16680 transitions. [2024-11-08 18:54:12,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:12,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 283 [2024-11-08 18:54:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:12,901 INFO L225 Difference]: With dead ends: 14315 [2024-11-08 18:54:12,901 INFO L226 Difference]: Without dead ends: 7790 [2024-11-08 18:54:12,908 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 18:54:12,908 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:12,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 847 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:54:12,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2024-11-08 18:54:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7790. [2024-11-08 18:54:13,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7790 states, 7789 states have (on average 1.1186288355372962) internal successors, (8713), 7789 states have internal predecessors, (8713), 0 states have call successors, (0), 0 states 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 18:54:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 8713 transitions. [2024-11-08 18:54:13,076 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 8713 transitions. Word has length 283 [2024-11-08 18:54:13,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:13,076 INFO L471 AbstractCegarLoop]: Abstraction has 7790 states and 8713 transitions. [2024-11-08 18:54:13,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 18:54:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 8713 transitions. [2024-11-08 18:54:13,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-08 18:54:13,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:13,083 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 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 18:54:13,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:54:13,084 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:13,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:13,085 INFO L85 PathProgramCache]: Analyzing trace with hash 298901467, now seen corresponding path program 1 times [2024-11-08 18:54:13,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:13,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72680629] [2024-11-08 18:54:13,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:13,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,387 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-08 18:54:13,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72680629] [2024-11-08 18:54:13,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72680629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:13,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:13,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525395406] [2024-11-08 18:54:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:13,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:13,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:13,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:13,389 INFO L87 Difference]: Start difference. First operand 7790 states and 8713 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 18:54:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:15,439 INFO L93 Difference]: Finished difference Result 18558 states and 20949 transitions. [2024-11-08 18:54:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:15,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 323 [2024-11-08 18:54:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:15,511 INFO L225 Difference]: With dead ends: 18558 [2024-11-08 18:54:15,513 INFO L226 Difference]: Without dead ends: 10770 [2024-11-08 18:54:15,517 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 18:54:15,519 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 454 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:15,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 330 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 18:54:15,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10770 states. [2024-11-08 18:54:15,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10770 to 9916. [2024-11-08 18:54:15,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9916 states, 9915 states have (on average 1.1232476046394353) internal successors, (11137), 9915 states have internal predecessors, (11137), 0 states have call successors, (0), 0 states 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 18:54:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9916 states to 9916 states and 11137 transitions. [2024-11-08 18:54:15,675 INFO L78 Accepts]: Start accepts. Automaton has 9916 states and 11137 transitions. Word has length 323 [2024-11-08 18:54:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:15,677 INFO L471 AbstractCegarLoop]: Abstraction has 9916 states and 11137 transitions. [2024-11-08 18:54:15,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 18:54:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 9916 states and 11137 transitions. [2024-11-08 18:54:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-08 18:54:15,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:15,686 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:15,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:54:15,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:15,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:15,687 INFO L85 PathProgramCache]: Analyzing trace with hash -372444392, now seen corresponding path program 1 times [2024-11-08 18:54:15,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70631090] [2024-11-08 18:54:15,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:15,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:16,344 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 18:54:16,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:16,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70631090] [2024-11-08 18:54:16,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70631090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:16,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:16,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086674090] [2024-11-08 18:54:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:16,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:16,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:16,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:16,349 INFO L87 Difference]: Start difference. First operand 9916 states and 11137 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 18:54:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:18,776 INFO L93 Difference]: Finished difference Result 23676 states and 26826 transitions. [2024-11-08 18:54:18,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:18,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 340 [2024-11-08 18:54:18,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:18,802 INFO L225 Difference]: With dead ends: 23676 [2024-11-08 18:54:18,802 INFO L226 Difference]: Without dead ends: 13762 [2024-11-08 18:54:18,811 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 18:54:18,811 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 431 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:18,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 441 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:54:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2024-11-08 18:54:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 12898. [2024-11-08 18:54:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12898 states, 12897 states have (on average 1.1220438861750794) internal successors, (14471), 12897 states have internal predecessors, (14471), 0 states have call successors, (0), 0 states 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 18:54:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12898 states to 12898 states and 14471 transitions. [2024-11-08 18:54:18,981 INFO L78 Accepts]: Start accepts. Automaton has 12898 states and 14471 transitions. Word has length 340 [2024-11-08 18:54:18,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:18,982 INFO L471 AbstractCegarLoop]: Abstraction has 12898 states and 14471 transitions. [2024-11-08 18:54:18,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 18:54:18,982 INFO L276 IsEmpty]: Start isEmpty. Operand 12898 states and 14471 transitions. [2024-11-08 18:54:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-08 18:54:18,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:18,993 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:18,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:54:18,993 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:18,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:18,994 INFO L85 PathProgramCache]: Analyzing trace with hash -394374068, now seen corresponding path program 1 times [2024-11-08 18:54:18,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:18,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817597084] [2024-11-08 18:54:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:18,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:54:19,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:19,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817597084] [2024-11-08 18:54:19,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817597084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:19,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:19,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:19,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621113409] [2024-11-08 18:54:19,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:19,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:54:19,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:19,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:54:19,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:54:19,553 INFO L87 Difference]: Start difference. First operand 12898 states and 14471 transitions. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states 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 18:54:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:22,876 INFO L93 Difference]: Finished difference Result 37740 states and 42156 transitions. [2024-11-08 18:54:22,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:54:22,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 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 390 [2024-11-08 18:54:22,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:22,921 INFO L225 Difference]: With dead ends: 37740 [2024-11-08 18:54:22,922 INFO L226 Difference]: Without dead ends: 23994 [2024-11-08 18:54:22,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 18:54:22,937 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 526 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:22,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 384 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 18:54:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23994 states. [2024-11-08 18:54:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23994 to 22696. [2024-11-08 18:54:23,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22696 states, 22695 states have (on average 1.1101564221194096) internal successors, (25195), 22695 states have internal predecessors, (25195), 0 states have call successors, (0), 0 states 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 18:54:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22696 states to 22696 states and 25195 transitions. [2024-11-08 18:54:23,269 INFO L78 Accepts]: Start accepts. Automaton has 22696 states and 25195 transitions. Word has length 390 [2024-11-08 18:54:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:23,269 INFO L471 AbstractCegarLoop]: Abstraction has 22696 states and 25195 transitions. [2024-11-08 18:54:23,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states 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 18:54:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand 22696 states and 25195 transitions. [2024-11-08 18:54:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-08 18:54:23,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:23,284 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:23,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:54:23,285 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:23,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash -269296922, now seen corresponding path program 1 times [2024-11-08 18:54:23,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:23,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990844585] [2024-11-08 18:54:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:23,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 18:54:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:23,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990844585] [2024-11-08 18:54:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990844585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:23,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:23,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530604480] [2024-11-08 18:54:23,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:23,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:23,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:23,623 INFO L87 Difference]: Start difference. First operand 22696 states and 25195 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 18:54:25,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:25,800 INFO L93 Difference]: Finished difference Result 51770 states and 57784 transitions. [2024-11-08 18:54:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:25,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 433 [2024-11-08 18:54:25,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:25,845 INFO L225 Difference]: With dead ends: 51770 [2024-11-08 18:54:25,845 INFO L226 Difference]: Without dead ends: 29076 [2024-11-08 18:54:25,860 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 18:54:25,861 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 424 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:25,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 379 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 18:54:25,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29076 states. [2024-11-08 18:54:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29076 to 23114. [2024-11-08 18:54:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23114 states, 23113 states have (on average 1.1121014147882144) internal successors, (25704), 23113 states have internal predecessors, (25704), 0 states have call successors, (0), 0 states 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 18:54:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23114 states to 23114 states and 25704 transitions. [2024-11-08 18:54:26,147 INFO L78 Accepts]: Start accepts. Automaton has 23114 states and 25704 transitions. Word has length 433 [2024-11-08 18:54:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:26,147 INFO L471 AbstractCegarLoop]: Abstraction has 23114 states and 25704 transitions. [2024-11-08 18:54:26,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 18:54:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 23114 states and 25704 transitions. [2024-11-08 18:54:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-08 18:54:26,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:26,171 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:26,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:54:26,171 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:26,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:26,172 INFO L85 PathProgramCache]: Analyzing trace with hash -553792608, now seen corresponding path program 1 times [2024-11-08 18:54:26,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:26,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383459040] [2024-11-08 18:54:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:26,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-08 18:54:26,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:26,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383459040] [2024-11-08 18:54:26,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383459040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:26,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:26,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:26,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603550493] [2024-11-08 18:54:26,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:26,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:26,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:26,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:26,892 INFO L87 Difference]: Start difference. First operand 23114 states and 25704 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states 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 18:54:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:28,771 INFO L93 Difference]: Finished difference Result 46218 states and 51398 transitions. [2024-11-08 18:54:28,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:28,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 518 [2024-11-08 18:54:28,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:28,801 INFO L225 Difference]: With dead ends: 46218 [2024-11-08 18:54:28,802 INFO L226 Difference]: Without dead ends: 23106 [2024-11-08 18:54:28,815 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 18:54:28,816 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 452 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:28,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 744 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:54:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23106 states. [2024-11-08 18:54:29,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23106 to 23104. [2024-11-08 18:54:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23104 states, 23103 states have (on average 1.080292602692291) internal successors, (24958), 23103 states have internal predecessors, (24958), 0 states have call successors, (0), 0 states 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 18:54:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23104 states to 23104 states and 24958 transitions. [2024-11-08 18:54:29,229 INFO L78 Accepts]: Start accepts. Automaton has 23104 states and 24958 transitions. Word has length 518 [2024-11-08 18:54:29,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:29,230 INFO L471 AbstractCegarLoop]: Abstraction has 23104 states and 24958 transitions. [2024-11-08 18:54:29,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states 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 18:54:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 23104 states and 24958 transitions. [2024-11-08 18:54:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-08 18:54:29,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:29,248 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:29,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:54:29,249 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:29,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:29,250 INFO L85 PathProgramCache]: Analyzing trace with hash -219384726, now seen corresponding path program 1 times [2024-11-08 18:54:29,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:29,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303918543] [2024-11-08 18:54:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:29,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 18:54:30,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:30,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303918543] [2024-11-08 18:54:30,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303918543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:30,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:30,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:54:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807854026] [2024-11-08 18:54:30,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:30,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:54:30,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:30,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:54:30,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:54:30,104 INFO L87 Difference]: Start difference. First operand 23104 states and 24958 transitions. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:54:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:33,603 INFO L93 Difference]: Finished difference Result 58999 states and 63699 transitions. [2024-11-08 18:54:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:54:33,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 544 [2024-11-08 18:54:33,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:33,648 INFO L225 Difference]: With dead ends: 58999 [2024-11-08 18:54:33,648 INFO L226 Difference]: Without dead ends: 34622 [2024-11-08 18:54:33,664 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 18:54:33,665 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 558 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:33,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 278 Invalid, 2957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 18:54:33,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34622 states. [2024-11-08 18:54:33,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34622 to 32895. [2024-11-08 18:54:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32895 states, 32894 states have (on average 1.0811394175229525) internal successors, (35563), 32894 states have internal predecessors, (35563), 0 states have call successors, (0), 0 states 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 18:54:34,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32895 states to 32895 states and 35563 transitions. [2024-11-08 18:54:34,219 INFO L78 Accepts]: Start accepts. Automaton has 32895 states and 35563 transitions. Word has length 544 [2024-11-08 18:54:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:34,220 INFO L471 AbstractCegarLoop]: Abstraction has 32895 states and 35563 transitions. [2024-11-08 18:54:34,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:54:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand 32895 states and 35563 transitions. [2024-11-08 18:54:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2024-11-08 18:54:34,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:34,256 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:34,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:54:34,256 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:34,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2108706672, now seen corresponding path program 1 times [2024-11-08 18:54:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:34,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523174487] [2024-11-08 18:54:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:34,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 316 proven. 82 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 18:54:35,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:35,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523174487] [2024-11-08 18:54:35,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523174487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:35,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359824185] [2024-11-08 18:54:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:35,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:35,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:35,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:35,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:54:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:35,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:54:35,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 18:54:36,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:36,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359824185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:36,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:36,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2024-11-08 18:54:36,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889608817] [2024-11-08 18:54:36,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:36,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:54:36,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:54:36,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:36,665 INFO L87 Difference]: Start difference. First operand 32895 states and 35563 transitions. Second operand has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states 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 18:54:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:40,601 INFO L93 Difference]: Finished difference Result 87119 states and 94317 transitions. [2024-11-08 18:54:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:54:40,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 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 610 [2024-11-08 18:54:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:40,656 INFO L225 Difference]: With dead ends: 87119 [2024-11-08 18:54:40,656 INFO L226 Difference]: Without dead ends: 52517 [2024-11-08 18:54:40,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:54:40,676 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 623 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 3197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:40,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 186 Invalid, 3197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 18:54:40,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52517 states. [2024-11-08 18:54:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52517 to 47795. [2024-11-08 18:54:41,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47795 states, 47794 states have (on average 1.081621123990459) internal successors, (51695), 47794 states have internal predecessors, (51695), 0 states have call successors, (0), 0 states 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 18:54:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47795 states to 47795 states and 51695 transitions. [2024-11-08 18:54:41,479 INFO L78 Accepts]: Start accepts. Automaton has 47795 states and 51695 transitions. Word has length 610 [2024-11-08 18:54:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:41,480 INFO L471 AbstractCegarLoop]: Abstraction has 47795 states and 51695 transitions. [2024-11-08 18:54:41,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states 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 18:54:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 47795 states and 51695 transitions. [2024-11-08 18:54:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-08 18:54:41,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:41,519 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:41,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:54:41,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:41,720 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:41,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:41,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2142308907, now seen corresponding path program 1 times [2024-11-08 18:54:41,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:41,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851020191] [2024-11-08 18:54:41,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:41,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-08 18:54:42,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:42,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851020191] [2024-11-08 18:54:42,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851020191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:42,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:42,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:42,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987507154] [2024-11-08 18:54:42,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:42,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:42,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:42,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:42,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:42,486 INFO L87 Difference]: Start difference. First operand 47795 states and 51695 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:54:44,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:44,874 INFO L93 Difference]: Finished difference Result 101969 states and 110561 transitions. [2024-11-08 18:54:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:44,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 637 [2024-11-08 18:54:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:44,944 INFO L225 Difference]: With dead ends: 101969 [2024-11-08 18:54:44,944 INFO L226 Difference]: Without dead ends: 52471 [2024-11-08 18:54:44,972 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 18:54:44,973 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 500 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:44,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 703 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 18:54:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52471 states. [2024-11-08 18:54:45,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52471 to 51616. [2024-11-08 18:54:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51616 states, 51615 states have (on average 1.0728664148018987) internal successors, (55376), 51615 states have internal predecessors, (55376), 0 states have call successors, (0), 0 states 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 18:54:45,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51616 states to 51616 states and 55376 transitions. [2024-11-08 18:54:45,573 INFO L78 Accepts]: Start accepts. Automaton has 51616 states and 55376 transitions. Word has length 637 [2024-11-08 18:54:45,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:45,574 INFO L471 AbstractCegarLoop]: Abstraction has 51616 states and 55376 transitions. [2024-11-08 18:54:45,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:54:45,575 INFO L276 IsEmpty]: Start isEmpty. Operand 51616 states and 55376 transitions. [2024-11-08 18:54:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2024-11-08 18:54:45,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:45,836 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:45,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:54:45,837 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:45,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:45,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1925771933, now seen corresponding path program 1 times [2024-11-08 18:54:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:45,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285610368] [2024-11-08 18:54:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:45,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-08 18:54:46,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:46,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285610368] [2024-11-08 18:54:46,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285610368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:46,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:46,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:54:46,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716431820] [2024-11-08 18:54:46,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:46,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:54:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:46,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:54:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:54:46,766 INFO L87 Difference]: Start difference. First operand 51616 states and 55376 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states 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 18:54:48,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:48,923 INFO L93 Difference]: Finished difference Result 110456 states and 118522 transitions. [2024-11-08 18:54:48,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:54:48,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 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 711 [2024-11-08 18:54:48,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:49,096 INFO L225 Difference]: With dead ends: 110456 [2024-11-08 18:54:49,096 INFO L226 Difference]: Without dead ends: 57127 [2024-11-08 18:54:49,118 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 18:54:49,118 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 458 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:49,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 794 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 18:54:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57127 states. [2024-11-08 18:54:49,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57127 to 53294. [2024-11-08 18:54:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53294 states, 53293 states have (on average 1.0629913872365977) internal successors, (56650), 53293 states have internal predecessors, (56650), 0 states have call successors, (0), 0 states 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 18:54:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53294 states to 53294 states and 56650 transitions. [2024-11-08 18:54:49,847 INFO L78 Accepts]: Start accepts. Automaton has 53294 states and 56650 transitions. Word has length 711 [2024-11-08 18:54:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:49,848 INFO L471 AbstractCegarLoop]: Abstraction has 53294 states and 56650 transitions. [2024-11-08 18:54:49,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states 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 18:54:49,849 INFO L276 IsEmpty]: Start isEmpty. Operand 53294 states and 56650 transitions. [2024-11-08 18:54:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-08 18:54:49,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:49,889 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:54:49,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:54:49,890 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:49,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 437295170, now seen corresponding path program 1 times [2024-11-08 18:54:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:49,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227831985] [2024-11-08 18:54:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 428 proven. 143 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 18:54:52,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227831985] [2024-11-08 18:54:52,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227831985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:52,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833756647] [2024-11-08 18:54:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:52,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:52,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:52,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:54:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:52,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:54:52,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 471 proven. 82 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-08 18:54:53,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 471 proven. 82 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-08 18:54:54,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833756647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:54:54,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:54:54,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2024-11-08 18:54:54,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544677201] [2024-11-08 18:54:54,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:54:54,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:54:54,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:54,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:54:54,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:54,468 INFO L87 Difference]: Start difference. First operand 53294 states and 56650 transitions. Second operand has 9 states, 9 states have (on average 131.55555555555554) internal successors, (1184), 8 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states 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 18:55:04,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:04,026 INFO L93 Difference]: Finished difference Result 125560 states and 133609 transitions. [2024-11-08 18:55:04,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:55:04,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 131.55555555555554) internal successors, (1184), 8 states have internal predecessors, (1184), 0 states have call successors, (0), 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 733 [2024-11-08 18:55:04,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:04,096 INFO L225 Difference]: With dead ends: 125560 [2024-11-08 18:55:04,096 INFO L226 Difference]: Without dead ends: 72261 [2024-11-08 18:55:04,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1482 GetRequests, 1461 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:55:04,251 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 5193 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 8142 mSolverCounterSat, 1368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5193 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 9510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1368 IncrementalHoareTripleChecker+Valid, 8142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:04,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5193 Valid, 312 Invalid, 9510 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1368 Valid, 8142 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-08 18:55:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72261 states. [2024-11-08 18:55:04,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72261 to 56249. [2024-11-08 18:55:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56249 states, 56248 states have (on average 1.0605532641160575) internal successors, (59654), 56248 states have internal predecessors, (59654), 0 states have call successors, (0), 0 states 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 18:55:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56249 states to 56249 states and 59654 transitions. [2024-11-08 18:55:05,048 INFO L78 Accepts]: Start accepts. Automaton has 56249 states and 59654 transitions. Word has length 733 [2024-11-08 18:55:05,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:05,049 INFO L471 AbstractCegarLoop]: Abstraction has 56249 states and 59654 transitions. [2024-11-08 18:55:05,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.55555555555554) internal successors, (1184), 8 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states 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 18:55:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand 56249 states and 59654 transitions. [2024-11-08 18:55:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2024-11-08 18:55:05,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:05,091 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:05,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:55:05,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 18:55:05,292 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:05,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1495222921, now seen corresponding path program 1 times [2024-11-08 18:55:05,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:05,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657347293] [2024-11-08 18:55:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:05,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 742 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-08 18:55:06,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:06,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657347293] [2024-11-08 18:55:06,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657347293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:06,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:06,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:55:06,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930165766] [2024-11-08 18:55:06,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:06,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:55:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:06,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:55:06,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:55:06,872 INFO L87 Difference]: Start difference. First operand 56249 states and 59654 transitions. Second operand has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 18:55:10,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:10,885 INFO L93 Difference]: Finished difference Result 124846 states and 132305 transitions. [2024-11-08 18:55:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:55:10,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 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 743 [2024-11-08 18:55:10,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:10,940 INFO L225 Difference]: With dead ends: 124846 [2024-11-08 18:55:10,940 INFO L226 Difference]: Without dead ends: 68598 [2024-11-08 18:55:10,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:55:10,956 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 771 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 3622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:10,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 312 Invalid, 3622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 18:55:10,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68598 states. [2024-11-08 18:55:11,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68598 to 58799. [2024-11-08 18:55:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58799 states, 58798 states have (on average 1.056260417020987) internal successors, (62106), 58798 states have internal predecessors, (62106), 0 states have call successors, (0), 0 states 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 18:55:11,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58799 states to 58799 states and 62106 transitions. [2024-11-08 18:55:11,662 INFO L78 Accepts]: Start accepts. Automaton has 58799 states and 62106 transitions. Word has length 743 [2024-11-08 18:55:11,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:11,662 INFO L471 AbstractCegarLoop]: Abstraction has 58799 states and 62106 transitions. [2024-11-08 18:55:11,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 18:55:11,663 INFO L276 IsEmpty]: Start isEmpty. Operand 58799 states and 62106 transitions. [2024-11-08 18:55:11,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-11-08 18:55:11,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:11,684 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:11,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:55:11,684 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:11,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:11,685 INFO L85 PathProgramCache]: Analyzing trace with hash 52301853, now seen corresponding path program 1 times [2024-11-08 18:55:11,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659769041] [2024-11-08 18:55:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 523 proven. 189 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-08 18:55:13,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:13,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659769041] [2024-11-08 18:55:13,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659769041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:13,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024685985] [2024-11-08 18:55:13,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:13,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:13,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:13,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:13,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:55:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:13,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 523 proven. 189 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-08 18:55:14,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 523 proven. 189 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-08 18:55:16,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024685985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:16,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:16,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-08 18:55:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653195194] [2024-11-08 18:55:16,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:16,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:16,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:16,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:16,906 INFO L87 Difference]: Start difference. First operand 58799 states and 62106 transitions. Second operand has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states 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 18:55:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:21,256 INFO L93 Difference]: Finished difference Result 120542 states and 127273 transitions. [2024-11-08 18:55:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:21,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 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 807 [2024-11-08 18:55:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:21,304 INFO L225 Difference]: With dead ends: 120542 [2024-11-08 18:55:21,305 INFO L226 Difference]: Without dead ends: 60467 [2024-11-08 18:55:21,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1618 GetRequests, 1612 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:55:21,329 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 913 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 3617 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 3944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 3617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:21,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 730 Invalid, 3944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 3617 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-08 18:55:21,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60467 states. [2024-11-08 18:55:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60467 to 56634. [2024-11-08 18:55:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56634 states, 56633 states have (on average 1.0465276428937191) internal successors, (59268), 56633 states have internal predecessors, (59268), 0 states have call successors, (0), 0 states 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 18:55:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56634 states to 56634 states and 59268 transitions. [2024-11-08 18:55:21,987 INFO L78 Accepts]: Start accepts. Automaton has 56634 states and 59268 transitions. Word has length 807 [2024-11-08 18:55:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:21,988 INFO L471 AbstractCegarLoop]: Abstraction has 56634 states and 59268 transitions. [2024-11-08 18:55:21,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states 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 18:55:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 56634 states and 59268 transitions. [2024-11-08 18:55:22,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2024-11-08 18:55:22,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:22,026 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:22,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:22,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:22,227 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:22,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash 968349720, now seen corresponding path program 1 times [2024-11-08 18:55:22,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:22,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119389074] [2024-11-08 18:55:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2024-11-08 18:55:23,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:23,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119389074] [2024-11-08 18:55:23,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119389074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:23,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:23,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:55:23,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442032199] [2024-11-08 18:55:23,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:23,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:23,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:23,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:23,248 INFO L87 Difference]: Start difference. First operand 56634 states and 59268 transitions. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states 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 18:55:25,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:25,155 INFO L93 Difference]: Finished difference Result 114532 states and 120055 transitions. [2024-11-08 18:55:25,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:25,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 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 829 [2024-11-08 18:55:25,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:25,211 INFO L225 Difference]: With dead ends: 114532 [2024-11-08 18:55:25,211 INFO L226 Difference]: Without dead ends: 56625 [2024-11-08 18:55:25,234 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 18:55:25,235 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 463 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:25,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 610 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:55:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56625 states. [2024-11-08 18:55:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56625 to 55774. [2024-11-08 18:55:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55774 states, 55773 states have (on average 1.04670718806591) internal successors, (58378), 55773 states have internal predecessors, (58378), 0 states have call successors, (0), 0 states 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 18:55:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55774 states to 55774 states and 58378 transitions. [2024-11-08 18:55:26,017 INFO L78 Accepts]: Start accepts. Automaton has 55774 states and 58378 transitions. Word has length 829 [2024-11-08 18:55:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:26,018 INFO L471 AbstractCegarLoop]: Abstraction has 55774 states and 58378 transitions. [2024-11-08 18:55:26,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states 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 18:55:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 55774 states and 58378 transitions. [2024-11-08 18:55:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2024-11-08 18:55:26,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:26,040 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:26,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:55:26,040 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:26,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash 684411445, now seen corresponding path program 1 times [2024-11-08 18:55:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:26,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925933266] [2024-11-08 18:55:26,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:26,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-08 18:55:27,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:27,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925933266] [2024-11-08 18:55:27,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925933266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:27,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:27,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:55:27,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927237039] [2024-11-08 18:55:27,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:27,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:27,160 INFO L87 Difference]: Start difference. First operand 55774 states and 58378 transitions. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states 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 18:55:29,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:29,134 INFO L93 Difference]: Finished difference Result 111973 states and 117193 transitions. [2024-11-08 18:55:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:29,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 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 845 [2024-11-08 18:55:29,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:29,199 INFO L225 Difference]: With dead ends: 111973 [2024-11-08 18:55:29,199 INFO L226 Difference]: Without dead ends: 56201 [2024-11-08 18:55:29,229 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 18:55:29,229 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 113 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:29,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 702 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:55:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56201 states. [2024-11-08 18:55:29,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56201 to 56200. [2024-11-08 18:55:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56200 states, 56199 states have (on average 1.045926084094023) internal successors, (58780), 56199 states have internal predecessors, (58780), 0 states have call successors, (0), 0 states 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 18:55:30,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56200 states to 56200 states and 58780 transitions. [2024-11-08 18:55:30,150 INFO L78 Accepts]: Start accepts. Automaton has 56200 states and 58780 transitions. Word has length 845 [2024-11-08 18:55:30,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:30,151 INFO L471 AbstractCegarLoop]: Abstraction has 56200 states and 58780 transitions. [2024-11-08 18:55:30,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states 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 18:55:30,151 INFO L276 IsEmpty]: Start isEmpty. Operand 56200 states and 58780 transitions. [2024-11-08 18:55:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2024-11-08 18:55:30,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:30,178 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:30,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:55:30,179 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:30,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash -878935662, now seen corresponding path program 1 times [2024-11-08 18:55:30,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:30,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243638623] [2024-11-08 18:55:30,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:30,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-08 18:55:31,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:31,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243638623] [2024-11-08 18:55:31,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243638623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:31,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:31,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:55:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178654502] [2024-11-08 18:55:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:31,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:55:31,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:31,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:55:31,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:55:31,142 INFO L87 Difference]: Start difference. First operand 56200 states and 58780 transitions. Second operand has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states 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 18:55:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:34,496 INFO L93 Difference]: Finished difference Result 127306 states and 132933 transitions. [2024-11-08 18:55:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:55:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 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 879 [2024-11-08 18:55:34,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:34,559 INFO L225 Difference]: With dead ends: 127306 [2024-11-08 18:55:34,559 INFO L226 Difference]: Without dead ends: 70683 [2024-11-08 18:55:34,583 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 18:55:34,584 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 571 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:34,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 83 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 18:55:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70683 states. [2024-11-08 18:55:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70683 to 63008. [2024-11-08 18:55:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63008 states, 63007 states have (on average 1.0452171980891012) internal successors, (65856), 63007 states have internal predecessors, (65856), 0 states have call successors, (0), 0 states 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 18:55:35,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63008 states to 63008 states and 65856 transitions. [2024-11-08 18:55:35,323 INFO L78 Accepts]: Start accepts. Automaton has 63008 states and 65856 transitions. Word has length 879 [2024-11-08 18:55:35,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:35,324 INFO L471 AbstractCegarLoop]: Abstraction has 63008 states and 65856 transitions. [2024-11-08 18:55:35,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states 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 18:55:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 63008 states and 65856 transitions. [2024-11-08 18:55:35,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1459 [2024-11-08 18:55:35,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:35,757 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:35,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:55:35,757 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:35,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:35,758 INFO L85 PathProgramCache]: Analyzing trace with hash 243804178, now seen corresponding path program 1 times [2024-11-08 18:55:35,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:35,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648973398] [2024-11-08 18:55:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:35,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:37,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2413 backedges. 1273 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2024-11-08 18:55:37,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:37,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648973398] [2024-11-08 18:55:37,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648973398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:37,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:37,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:55:37,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964132110] [2024-11-08 18:55:37,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:37,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:55:37,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:37,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:55:37,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:55:37,469 INFO L87 Difference]: Start difference. First operand 63008 states and 65856 transitions. Second operand has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 0 states 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 18:55:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:40,530 INFO L93 Difference]: Finished difference Result 135389 states and 141361 transitions. [2024-11-08 18:55:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:55:40,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 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 1458 [2024-11-08 18:55:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:40,532 INFO L225 Difference]: With dead ends: 135389 [2024-11-08 18:55:40,532 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:55:40,551 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 18:55:40,552 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 551 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:40,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 81 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 18:55:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:55:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:55:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:55:40,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1458 [2024-11-08 18:55:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:40,554 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:55:40,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 0 states 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 18:55:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:55:40,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:55:40,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:55:40,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:55:40,559 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:40,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:55:55,440 WARN L286 SmtUtils]: Spent 14.87s on a formula simplification. DAG size of input: 679 DAG size of output: 647 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-08 18:55:59,623 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:55:59,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:55:59 BoogieIcfgContainer [2024-11-08 18:55:59,664 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:55:59,664 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:55:59,664 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:55:59,665 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:55:59,665 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:53:50" (3/4) ... [2024-11-08 18:55:59,668 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:55:59,715 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 18:55:59,718 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 18:55:59,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 18:55:59,725 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:56:00,102 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:56:00,104 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:56:00,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:56:00,105 INFO L158 Benchmark]: Toolchain (without parser) took 137490.66ms. Allocated memory was 148.9MB in the beginning and 9.2GB in the end (delta: 9.1GB). Free memory was 88.3MB in the beginning and 3.8GB in the end (delta: -3.8GB). Peak memory consumption was 5.3GB. Max. memory is 16.1GB. [2024-11-08 18:56:00,105 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:56:00,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1704.67ms. Allocated memory is still 148.9MB. Free memory was 88.3MB in the beginning and 70.9MB in the end (delta: 17.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-11-08 18:56:00,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 377.61ms. Allocated memory is still 148.9MB. Free memory was 70.9MB in the beginning and 47.9MB in the end (delta: 22.9MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2024-11-08 18:56:00,107 INFO L158 Benchmark]: Boogie Preprocessor took 634.58ms. Allocated memory was 148.9MB in the beginning and 241.2MB in the end (delta: 92.3MB). Free memory was 47.9MB in the beginning and 123.0MB in the end (delta: -75.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2024-11-08 18:56:00,107 INFO L158 Benchmark]: RCFGBuilder took 4849.08ms. Allocated memory was 241.2MB in the beginning and 390.1MB in the end (delta: 148.9MB). Free memory was 121.9MB in the beginning and 289.7MB in the end (delta: -167.7MB). Peak memory consumption was 159.4MB. Max. memory is 16.1GB. [2024-11-08 18:56:00,107 INFO L158 Benchmark]: TraceAbstraction took 129472.27ms. Allocated memory was 390.1MB in the beginning and 9.2GB in the end (delta: 8.8GB). Free memory was 289.7MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 5.3GB. Max. memory is 16.1GB. [2024-11-08 18:56:00,108 INFO L158 Benchmark]: Witness Printer took 439.63ms. Allocated memory is still 9.2GB. Free memory was 3.9GB in the beginning and 3.8GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-08 18:56:00,111 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1704.67ms. Allocated memory is still 148.9MB. Free memory was 88.3MB in the beginning and 70.9MB in the end (delta: 17.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 377.61ms. Allocated memory is still 148.9MB. Free memory was 70.9MB in the beginning and 47.9MB in the end (delta: 22.9MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 634.58ms. Allocated memory was 148.9MB in the beginning and 241.2MB in the end (delta: 92.3MB). Free memory was 47.9MB in the beginning and 123.0MB in the end (delta: -75.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * RCFGBuilder took 4849.08ms. Allocated memory was 241.2MB in the beginning and 390.1MB in the end (delta: 148.9MB). Free memory was 121.9MB in the beginning and 289.7MB in the end (delta: -167.7MB). Peak memory consumption was 159.4MB. Max. memory is 16.1GB. * TraceAbstraction took 129472.27ms. Allocated memory was 390.1MB in the beginning and 9.2GB in the end (delta: 8.8GB). Free memory was 289.7MB in the beginning and 3.9GB in the end (delta: -3.6GB). Peak memory consumption was 5.3GB. Max. memory is 16.1GB. * Witness Printer took 439.63ms. Allocated memory is still 9.2GB. Free memory was 3.9GB in the beginning and 3.8GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 171]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 110.3s, OverallIterations: 23, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.1s, AutomataDifference: 72.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15925 SdHoareTripleChecker+Valid, 65.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15925 mSDsluCounter, 11666 SdHoareTripleChecker+Invalid, 55.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1696 mSDsCounter, 7837 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45409 IncrementalHoareTripleChecker+Invalid, 53246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7837 mSolverCounterUnsat, 9970 mSDtfsCounter, 45409 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3775 GetRequests, 3718 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63008occurred in iteration=22, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 62145 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 14146 NumberOfCodeBlocks, 14146 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 15658 ConstructedInterpolants, 0 QuantifiedInterpolants, 40415 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2599 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 14990/15946 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2590]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((a26 <= 121) && (a21 <= 124)) && (a24 == 2)) && (((long long) a14 + 114) <= 0)) || (((a24 <= 1) && (((long long) a14 + 114) <= 0)) && (125 <= a26))) || ((((a21 <= 124) && (a24 <= 1)) && (0 <= ((long long) a14 + 83))) && (a28 <= 599997))) || ((((a21 <= 124) && (a26 <= 217)) && (a24 <= 1)) && (0 <= ((long long) a14 + 83)))) || (((((a24 == 3) && (a21 <= 124)) && (((long long) a14 + 114) <= 0)) && (a28 <= 133)) && (38 <= a28))) || (((((300 <= a28) && (a24 == 3)) && (a21 <= 124)) && (((long long) a14 + 182) <= 0)) && (a28 <= 599997))) || (((a21 <= 124) && (((long long) a14 + 182) <= 0)) && (a24 == 2))) || ((((long long) a14 + 182) <= 0) && (a24 <= 1))) || (((((a21 <= 124) && (a24 == 2)) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113))) && (((((long long) a28 * 9) >= 0) ? (((long long) a28 * 9) / 10) : ((((long long) a28 * 9) / 10) - 1)) <= 589136))) || (((((a21 <= 124) && (a26 <= 217)) && (a24 == 2)) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113)))) || ((((a21 <= 124) && (a24 == 2)) && (((long long) a14 + 114) <= 0)) && (218 <= a26))) || ((((a21 <= 124) && (a24 == 2)) && (125 <= a26)) && (a28 <= 599997))) || ((((((a24 == 3) && (a21 <= 124)) && (a28 <= 111)) && (a26 <= 124)) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113)))) || (((a26 <= 121) && (a24 == 3)) && (a21 <= 124))) || ((a24 <= 1) && (((long long) a26 + 68) <= 0))) || (((a21 <= 124) && (a28 <= 432928)) && (a24 == 2))) || (((((a21 <= 124) && (0 <= ((long long) a14 + 79))) && (a24 == 2)) || ((((a21 <= 124) && (a24 == 2)) && (((((long long) a28 * 9) >= 0) ? (((long long) a28 * 9) / 10) : ((((long long) a28 * 9) / 10) - 1)) <= 589136)) && (0 <= ((long long) a14 + 83)))) && (a26 <= 124))) || ((((((a24 == 3) && (a21 <= 124)) && (a26 <= 217)) && (((long long) a14 + 114) <= 0)) && (((long long) a28 + 167094) <= 0)) && (125 <= a26))) || (((a24 <= 1) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113)))) || ((a24 <= 1) && (((long long) a28 + 167094) <= 0))) || (((((a24 == 3) && (a21 <= 124)) && (a28 <= 432928)) && (38 <= a28)) && (218 <= a26))) || (((a24 <= 1) && (((long long) a14 + 114) <= 0)) && (a28 <= 297))) RESULT: Ultimate proved your program to be correct! [2024-11-08 18:56:00,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dcf72f-4a5d-498b-8db8-346722fbf330/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE