./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/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_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/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_1f9bb765-e1e6-454d-b5d8-142f10392a15/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 8d970a6b46f522cdb24394c622109e56254d5436a464b2c277d963fe4612a422 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:59:01,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:59:01,826 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:59:01,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:59:01,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:59:01,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:59:01,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:59:01,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:59:01,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:59:01,863 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:59:01,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:59:01,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:59:01,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:59:01,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:59:01,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:59:01,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:59:01,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:59:01,871 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:59:01,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:59:01,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:59:01,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:59:01,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:59:01,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:59:01,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:59:01,878 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:59:01,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:59:01,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:59:01,879 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:59:01,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:59:01,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:59:01,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:59:01,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:59:01,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:59:01,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:59:01,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:59:01,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:59:01,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:59:01,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:59:01,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:59:01,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:59:01,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:59:01,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:59:01,886 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_1f9bb765-e1e6-454d-b5d8-142f10392a15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d970a6b46f522cdb24394c622109e56254d5436a464b2c277d963fe4612a422 [2024-11-08 17:59:02,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:59:02,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:59:02,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:59:02,207 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:59:02,208 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:59:02,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-08 17:59:04,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:59:04,563 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:59:04,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-08 17:59:04,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/data/5e2c25db3/839895cbe543406798a540e1d3975e92/FLAG1b7718076 [2024-11-08 17:59:04,890 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/data/5e2c25db3/839895cbe543406798a540e1d3975e92 [2024-11-08 17:59:04,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:59:04,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:59:04,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:59:04,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:59:04,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:59:04,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:04" (1/1) ... [2024-11-08 17:59:04,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a0db55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:04, skipping insertion in model container [2024-11-08 17:59:04,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:59:04" (1/1) ... [2024-11-08 17:59:04,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:59:05,241 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_1f9bb765-e1e6-454d-b5d8-142f10392a15/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6356,6369] [2024-11-08 17:59:05,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:59:05,316 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:59:05,370 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_1f9bb765-e1e6-454d-b5d8-142f10392a15/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6356,6369] [2024-11-08 17:59:05,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:59:05,452 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:59:05,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05 WrapperNode [2024-11-08 17:59:05,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:59:05,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:59:05,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:59:05,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:59:05,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,514 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 572 [2024-11-08 17:59:05,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:59:05,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:59:05,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:59:05,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:59:05,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,553 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 17:59:05,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:59:05,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:59:05,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:59:05,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:59:05,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (1/1) ... [2024-11-08 17:59:05,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:59:05,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:05,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:59:05,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:59:05,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:59:05,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:59:05,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:59:05,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:59:05,879 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:59:05,882 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:59:06,546 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-08 17:59:06,546 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:59:06,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:59:06,563 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:59:06,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:06 BoogieIcfgContainer [2024-11-08 17:59:06,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:59:06,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:59:06,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:59:06,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:59:06,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:59:04" (1/3) ... [2024-11-08 17:59:06,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe7932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:06, skipping insertion in model container [2024-11-08 17:59:06,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:59:05" (2/3) ... [2024-11-08 17:59:06,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe7932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:59:06, skipping insertion in model container [2024-11-08 17:59:06,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:59:06" (3/3) ... [2024-11-08 17:59:06,573 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-08 17:59:06,590 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:59:06,590 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:59:06,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:59:06,671 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;@4422c72a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:59:06,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:59:06,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 136 states have (on average 1.6911764705882353) internal successors, (230), 137 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 17:59:06,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:06,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:06,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:06,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:06,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1025697732, now seen corresponding path program 1 times [2024-11-08 17:59:06,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:06,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095538219] [2024-11-08 17:59:06,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:07,250 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 17:59:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:07,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095538219] [2024-11-08 17:59:07,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095538219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:07,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:07,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:07,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762752509] [2024-11-08 17:59:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:07,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:07,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:07,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:07,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:07,292 INFO L87 Difference]: Start difference. First operand has 138 states, 136 states have (on average 1.6911764705882353) internal successors, (230), 137 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:07,387 INFO L93 Difference]: Finished difference Result 328 states and 528 transitions. [2024-11-08 17:59:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:07,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-08 17:59:07,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:07,402 INFO L225 Difference]: With dead ends: 328 [2024-11-08 17:59:07,402 INFO L226 Difference]: Without dead ends: 219 [2024-11-08 17:59:07,406 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 17:59:07,409 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 167 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:07,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 487 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-08 17:59:07,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2024-11-08 17:59:07,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.5046296296296295) internal successors, (325), 216 states have internal predecessors, (325), 0 states have call successors, (0), 0 states 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 17:59:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 325 transitions. [2024-11-08 17:59:07,462 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 325 transitions. Word has length 61 [2024-11-08 17:59:07,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:07,463 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 325 transitions. [2024-11-08 17:59:07,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 325 transitions. [2024-11-08 17:59:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 17:59:07,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:07,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:07,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:59:07,467 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:07,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1571099909, now seen corresponding path program 1 times [2024-11-08 17:59:07,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:07,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412755387] [2024-11-08 17:59:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:07,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:07,743 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 17:59:07,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:07,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412755387] [2024-11-08 17:59:07,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412755387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:07,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:07,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:07,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406566117] [2024-11-08 17:59:07,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:07,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:07,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:07,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:07,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:07,753 INFO L87 Difference]: Start difference. First operand 217 states and 325 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:07,830 INFO L93 Difference]: Finished difference Result 549 states and 853 transitions. [2024-11-08 17:59:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-08 17:59:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:07,836 INFO L225 Difference]: With dead ends: 549 [2024-11-08 17:59:07,837 INFO L226 Difference]: Without dead ends: 367 [2024-11-08 17:59:07,838 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 17:59:07,842 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 137 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:07,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 424 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-08 17:59:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2024-11-08 17:59:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.5384615384615385) internal successors, (560), 364 states have internal predecessors, (560), 0 states have call successors, (0), 0 states 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 17:59:07,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 560 transitions. [2024-11-08 17:59:07,893 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 560 transitions. Word has length 62 [2024-11-08 17:59:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:07,893 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 560 transitions. [2024-11-08 17:59:07,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 560 transitions. [2024-11-08 17:59:07,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 17:59:07,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:07,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:07,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:59:07,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:07,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash 195770199, now seen corresponding path program 1 times [2024-11-08 17:59:07,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:07,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572366942] [2024-11-08 17:59:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:07,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:08,079 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 17:59:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572366942] [2024-11-08 17:59:08,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572366942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:08,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:08,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:08,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614746176] [2024-11-08 17:59:08,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:08,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:08,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:08,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:08,086 INFO L87 Difference]: Start difference. First operand 365 states and 560 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:08,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:08,128 INFO L93 Difference]: Finished difference Result 961 states and 1506 transitions. [2024-11-08 17:59:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-08 17:59:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:08,132 INFO L225 Difference]: With dead ends: 961 [2024-11-08 17:59:08,132 INFO L226 Difference]: Without dead ends: 631 [2024-11-08 17:59:08,134 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 17:59:08,139 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 132 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:08,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 409 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-08 17:59:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 629. [2024-11-08 17:59:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.5541401273885351) internal successors, (976), 628 states have internal predecessors, (976), 0 states have call successors, (0), 0 states 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 17:59:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 976 transitions. [2024-11-08 17:59:08,188 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 976 transitions. Word has length 63 [2024-11-08 17:59:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:08,192 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 976 transitions. [2024-11-08 17:59:08,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:08,192 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 976 transitions. [2024-11-08 17:59:08,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 17:59:08,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:08,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:08,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:59:08,197 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash 92320152, now seen corresponding path program 1 times [2024-11-08 17:59:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350662114] [2024-11-08 17:59:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:08,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:08,336 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 17:59:08,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:08,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350662114] [2024-11-08 17:59:08,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350662114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:08,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:08,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166412194] [2024-11-08 17:59:08,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:08,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:08,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:08,340 INFO L87 Difference]: Start difference. First operand 629 states and 976 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:08,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:08,372 INFO L93 Difference]: Finished difference Result 1689 states and 2650 transitions. [2024-11-08 17:59:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:08,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-08 17:59:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:08,377 INFO L225 Difference]: With dead ends: 1689 [2024-11-08 17:59:08,378 INFO L226 Difference]: Without dead ends: 1095 [2024-11-08 17:59:08,379 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 17:59:08,381 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 127 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:08,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-08 17:59:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1093. [2024-11-08 17:59:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 1092 states have (on average 1.5567765567765568) internal successors, (1700), 1092 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states 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 17:59:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1700 transitions. [2024-11-08 17:59:08,411 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1700 transitions. Word has length 64 [2024-11-08 17:59:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:08,411 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1700 transitions. [2024-11-08 17:59:08,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1700 transitions. [2024-11-08 17:59:08,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:59:08,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:08,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:08,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:59:08,414 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:08,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:08,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1673406722, now seen corresponding path program 1 times [2024-11-08 17:59:08,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:08,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489706113] [2024-11-08 17:59:08,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:08,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:08,621 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 17:59:08,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:08,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489706113] [2024-11-08 17:59:08,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489706113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:08,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:08,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:59:08,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613701879] [2024-11-08 17:59:08,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:08,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:59:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:59:08,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:59:08,625 INFO L87 Difference]: Start difference. First operand 1093 states and 1700 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 17:59:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:08,936 INFO L93 Difference]: Finished difference Result 7441 states and 11690 transitions. [2024-11-08 17:59:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:59:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-08 17:59:08,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:08,965 INFO L225 Difference]: With dead ends: 7441 [2024-11-08 17:59:08,965 INFO L226 Difference]: Without dead ends: 6383 [2024-11-08 17:59:08,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:59:08,971 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 1477 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:08,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 2341 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:59:08,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2024-11-08 17:59:09,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 2149. [2024-11-08 17:59:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 2148 states have (on average 1.5512104283054005) internal successors, (3332), 2148 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states 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 17:59:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3332 transitions. [2024-11-08 17:59:09,087 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3332 transitions. Word has length 65 [2024-11-08 17:59:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:09,089 INFO L471 AbstractCegarLoop]: Abstraction has 2149 states and 3332 transitions. [2024-11-08 17:59:09,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 17:59:09,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3332 transitions. [2024-11-08 17:59:09,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 17:59:09,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:09,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:09,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:59:09,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:09,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:09,096 INFO L85 PathProgramCache]: Analyzing trace with hash -355457067, now seen corresponding path program 1 times [2024-11-08 17:59:09,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:09,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895585660] [2024-11-08 17:59:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:09,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:09,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:09,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:09,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895585660] [2024-11-08 17:59:09,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895585660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:09,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:09,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:59:09,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721828308] [2024-11-08 17:59:09,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:09,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:59:09,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:09,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:59:09,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:59:09,443 INFO L87 Difference]: Start difference. First operand 2149 states and 3332 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:09,696 INFO L93 Difference]: Finished difference Result 11279 states and 17449 transitions. [2024-11-08 17:59:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:59:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 17:59:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:09,729 INFO L225 Difference]: With dead ends: 11279 [2024-11-08 17:59:09,730 INFO L226 Difference]: Without dead ends: 9165 [2024-11-08 17:59:09,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:59:09,737 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 764 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:09,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1065 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:59:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9165 states. [2024-11-08 17:59:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9165 to 9157. [2024-11-08 17:59:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9157 states, 9156 states have (on average 1.5417212756662297) internal successors, (14116), 9156 states have internal predecessors, (14116), 0 states have call successors, (0), 0 states 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 17:59:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9157 states to 9157 states and 14116 transitions. [2024-11-08 17:59:09,986 INFO L78 Accepts]: Start accepts. Automaton has 9157 states and 14116 transitions. Word has length 66 [2024-11-08 17:59:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:09,991 INFO L471 AbstractCegarLoop]: Abstraction has 9157 states and 14116 transitions. [2024-11-08 17:59:09,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9157 states and 14116 transitions. [2024-11-08 17:59:09,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 17:59:09,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:09,993 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:09,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:59:09,994 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:09,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:09,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1716189444, now seen corresponding path program 1 times [2024-11-08 17:59:09,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:09,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787566845] [2024-11-08 17:59:09,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:09,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:10,157 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 17:59:10,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:10,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787566845] [2024-11-08 17:59:10,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787566845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:10,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:10,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:10,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468381771] [2024-11-08 17:59:10,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:10,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:10,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:10,163 INFO L87 Difference]: Start difference. First operand 9157 states and 14116 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:10,329 INFO L93 Difference]: Finished difference Result 24681 states and 37894 transitions. [2024-11-08 17:59:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:10,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-08 17:59:10,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:10,402 INFO L225 Difference]: With dead ends: 24681 [2024-11-08 17:59:10,405 INFO L226 Difference]: Without dead ends: 15559 [2024-11-08 17:59:10,419 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 17:59:10,421 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 144 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:10,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 464 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:10,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15559 states. [2024-11-08 17:59:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15559 to 15557. [2024-11-08 17:59:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15557 states, 15556 states have (on average 1.5204422730779121) internal successors, (23652), 15556 states have internal predecessors, (23652), 0 states have call successors, (0), 0 states 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 17:59:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15557 states to 15557 states and 23652 transitions. [2024-11-08 17:59:10,851 INFO L78 Accepts]: Start accepts. Automaton has 15557 states and 23652 transitions. Word has length 67 [2024-11-08 17:59:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:10,851 INFO L471 AbstractCegarLoop]: Abstraction has 15557 states and 23652 transitions. [2024-11-08 17:59:10,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:10,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15557 states and 23652 transitions. [2024-11-08 17:59:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 17:59:10,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:10,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:10,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:59:10,853 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:10,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1246735554, now seen corresponding path program 1 times [2024-11-08 17:59:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:10,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600194076] [2024-11-08 17:59:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:11,078 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 17:59:11,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:11,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600194076] [2024-11-08 17:59:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600194076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:11,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:11,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:59:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076708254] [2024-11-08 17:59:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:11,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:59:11,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:11,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:59:11,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:11,084 INFO L87 Difference]: Start difference. First operand 15557 states and 23652 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:11,632 INFO L93 Difference]: Finished difference Result 43881 states and 66790 transitions. [2024-11-08 17:59:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:59:11,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 17:59:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:11,703 INFO L225 Difference]: With dead ends: 43881 [2024-11-08 17:59:11,703 INFO L226 Difference]: Without dead ends: 28359 [2024-11-08 17:59:11,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:59:11,729 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 844 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:11,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 218 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:59:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28359 states. [2024-11-08 17:59:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28359 to 28357. [2024-11-08 17:59:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28357 states, 28356 states have (on average 1.5123430667230922) internal successors, (42884), 28356 states have internal predecessors, (42884), 0 states have call successors, (0), 0 states 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 17:59:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28357 states to 28357 states and 42884 transitions. [2024-11-08 17:59:12,441 INFO L78 Accepts]: Start accepts. Automaton has 28357 states and 42884 transitions. Word has length 68 [2024-11-08 17:59:12,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:12,442 INFO L471 AbstractCegarLoop]: Abstraction has 28357 states and 42884 transitions. [2024-11-08 17:59:12,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:12,443 INFO L276 IsEmpty]: Start isEmpty. Operand 28357 states and 42884 transitions. [2024-11-08 17:59:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 17:59:12,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:12,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:12,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:59:12,444 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:12,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:12,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1651275811, now seen corresponding path program 1 times [2024-11-08 17:59:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:12,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689654123] [2024-11-08 17:59:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:12,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:13,101 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 17:59:13,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:13,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689654123] [2024-11-08 17:59:13,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689654123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:13,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:13,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:59:13,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772282815] [2024-11-08 17:59:13,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:13,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:59:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:59:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:13,103 INFO L87 Difference]: Start difference. First operand 28357 states and 42884 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:13,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:13,206 INFO L93 Difference]: Finished difference Result 29511 states and 44613 transitions. [2024-11-08 17:59:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:59:13,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 17:59:13,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:13,265 INFO L225 Difference]: With dead ends: 29511 [2024-11-08 17:59:13,265 INFO L226 Difference]: Without dead ends: 29509 [2024-11-08 17:59:13,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:59:13,274 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:13,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 754 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29509 states. [2024-11-08 17:59:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29509 to 29509. [2024-11-08 17:59:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29509 states, 29508 states have (on average 1.4923410600515115) internal successors, (44036), 29508 states have internal predecessors, (44036), 0 states have call successors, (0), 0 states 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 17:59:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29509 states to 29509 states and 44036 transitions. [2024-11-08 17:59:13,834 INFO L78 Accepts]: Start accepts. Automaton has 29509 states and 44036 transitions. Word has length 68 [2024-11-08 17:59:13,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:13,834 INFO L471 AbstractCegarLoop]: Abstraction has 29509 states and 44036 transitions. [2024-11-08 17:59:13,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 29509 states and 44036 transitions. [2024-11-08 17:59:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 17:59:13,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:13,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:13,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:59:13,837 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:13,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:13,837 INFO L85 PathProgramCache]: Analyzing trace with hash -339484320, now seen corresponding path program 1 times [2024-11-08 17:59:13,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:13,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542022659] [2024-11-08 17:59:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:13,991 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 17:59:13,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:13,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542022659] [2024-11-08 17:59:13,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542022659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:13,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:13,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:13,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112102724] [2024-11-08 17:59:13,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:13,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:13,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:13,994 INFO L87 Difference]: Start difference. First operand 29509 states and 44036 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 17:59:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:14,364 INFO L93 Difference]: Finished difference Result 66587 states and 99176 transitions. [2024-11-08 17:59:14,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:14,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-08 17:59:14,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:14,433 INFO L225 Difference]: With dead ends: 66587 [2024-11-08 17:59:14,433 INFO L226 Difference]: Without dead ends: 37113 [2024-11-08 17:59:14,453 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 17:59:14,454 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 114 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:14,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 345 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37113 states. [2024-11-08 17:59:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37113 to 36967. [2024-11-08 17:59:15,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36967 states, 36966 states have (on average 1.4808743169398908) internal successors, (54742), 36966 states have internal predecessors, (54742), 0 states have call successors, (0), 0 states 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 17:59:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36967 states to 36967 states and 54742 transitions. [2024-11-08 17:59:15,232 INFO L78 Accepts]: Start accepts. Automaton has 36967 states and 54742 transitions. Word has length 69 [2024-11-08 17:59:15,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:15,232 INFO L471 AbstractCegarLoop]: Abstraction has 36967 states and 54742 transitions. [2024-11-08 17:59:15,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 17:59:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 36967 states and 54742 transitions. [2024-11-08 17:59:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 17:59:15,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:15,244 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:15,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:59:15,245 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:15,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:15,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1573259719, now seen corresponding path program 1 times [2024-11-08 17:59:15,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:15,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539613757] [2024-11-08 17:59:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:15,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:15,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:15,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539613757] [2024-11-08 17:59:15,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539613757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:15,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:15,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:15,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395789289] [2024-11-08 17:59:15,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:15,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:15,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:15,350 INFO L87 Difference]: Start difference. First operand 36967 states and 54742 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:15,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:15,912 INFO L93 Difference]: Finished difference Result 99820 states and 147994 transitions. [2024-11-08 17:59:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:15,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 17:59:15,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:16,036 INFO L225 Difference]: With dead ends: 99820 [2024-11-08 17:59:16,036 INFO L226 Difference]: Without dead ends: 66410 [2024-11-08 17:59:16,060 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 17:59:16,061 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 117 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:16,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 481 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66410 states. [2024-11-08 17:59:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66410 to 66408. [2024-11-08 17:59:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66408 states, 66407 states have (on average 1.471290677187646) internal successors, (97704), 66407 states have internal predecessors, (97704), 0 states have call successors, (0), 0 states 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 17:59:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66408 states to 66408 states and 97704 transitions. [2024-11-08 17:59:17,360 INFO L78 Accepts]: Start accepts. Automaton has 66408 states and 97704 transitions. Word has length 96 [2024-11-08 17:59:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:17,361 INFO L471 AbstractCegarLoop]: Abstraction has 66408 states and 97704 transitions. [2024-11-08 17:59:17,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 66408 states and 97704 transitions. [2024-11-08 17:59:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 17:59:17,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:17,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:17,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:59:17,379 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:17,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1725865046, now seen corresponding path program 1 times [2024-11-08 17:59:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:17,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073552430] [2024-11-08 17:59:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:18,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:18,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073552430] [2024-11-08 17:59:18,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073552430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:59:18,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793075875] [2024-11-08 17:59:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:18,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:18,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:59:18,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:59:18,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:59:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:18,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 17:59:18,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:59:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:19,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:59:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:20,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793075875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:59:20,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:59:20,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 24 [2024-11-08 17:59:20,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880209050] [2024-11-08 17:59:20,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:59:20,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 17:59:20,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:20,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 17:59:20,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2024-11-08 17:59:20,454 INFO L87 Difference]: Start difference. First operand 66408 states and 97704 transitions. Second operand has 24 states, 24 states have (on average 11.625) internal successors, (279), 24 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 17:59:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:35,399 INFO L93 Difference]: Finished difference Result 498886 states and 732893 transitions. [2024-11-08 17:59:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2024-11-08 17:59:35,400 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 11.625) internal successors, (279), 24 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-08 17:59:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:36,148 INFO L225 Difference]: With dead ends: 498886 [2024-11-08 17:59:36,148 INFO L226 Difference]: Without dead ends: 432516 [2024-11-08 17:59:36,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12123 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=4662, Invalid=24750, Unknown=0, NotChecked=0, Total=29412 [2024-11-08 17:59:36,294 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 15401 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 4712 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15401 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 4852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 4712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:36,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15401 Valid, 5054 Invalid, 4852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [140 Valid, 4712 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-08 17:59:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432516 states. [2024-11-08 17:59:40,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432516 to 355275. [2024-11-08 17:59:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355275 states, 355274 states have (on average 1.4509167572071133) internal successors, (515473), 355274 states have internal predecessors, (515473), 0 states have call successors, (0), 0 states 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 17:59:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355275 states to 355275 states and 515473 transitions. [2024-11-08 17:59:42,825 INFO L78 Accepts]: Start accepts. Automaton has 355275 states and 515473 transitions. Word has length 96 [2024-11-08 17:59:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:42,826 INFO L471 AbstractCegarLoop]: Abstraction has 355275 states and 515473 transitions. [2024-11-08 17:59:42,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.625) internal successors, (279), 24 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 17:59:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 355275 states and 515473 transitions. [2024-11-08 17:59:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 17:59:42,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:42,852 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:42,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:59:43,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f9bb765-e1e6-454d-b5d8-142f10392a15/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:59:43,056 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash 587295342, now seen corresponding path program 1 times [2024-11-08 17:59:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930072569] [2024-11-08 17:59:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:59:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:59:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:59:43,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:59:43,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930072569] [2024-11-08 17:59:43,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930072569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:59:43,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:59:43,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:59:43,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507916788] [2024-11-08 17:59:43,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:59:43,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:59:43,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:59:43,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:59:43,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:59:43,184 INFO L87 Difference]: Start difference. First operand 355275 states and 515473 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:59:46,661 INFO L93 Difference]: Finished difference Result 861592 states and 1248045 transitions. [2024-11-08 17:59:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:59:46,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-08 17:59:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:59:48,100 INFO L225 Difference]: With dead ends: 861592 [2024-11-08 17:59:48,100 INFO L226 Difference]: Without dead ends: 579890 [2024-11-08 17:59:48,324 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 17:59:48,325 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 115 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:59:48,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 429 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:59:48,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579890 states. [2024-11-08 17:59:57,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579890 to 579888. [2024-11-08 17:59:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579888 states, 579887 states have (on average 1.4364712435353784) internal successors, (832991), 579887 states have internal predecessors, (832991), 0 states have call successors, (0), 0 states 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 17:59:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579888 states to 579888 states and 832991 transitions. [2024-11-08 17:59:59,950 INFO L78 Accepts]: Start accepts. Automaton has 579888 states and 832991 transitions. Word has length 97 [2024-11-08 17:59:59,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:59:59,951 INFO L471 AbstractCegarLoop]: Abstraction has 579888 states and 832991 transitions. [2024-11-08 17:59:59,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:59:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 579888 states and 832991 transitions. [2024-11-08 17:59:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 17:59:59,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:59:59,973 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:59:59,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:59:59,973 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:59:59,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:59:59,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1312420636, now seen corresponding path program 1 times [2024-11-08 17:59:59,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:59:59,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998042189] [2024-11-08 17:59:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:59:59,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:00:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:00:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:00:00,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:00:00,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998042189] [2024-11-08 18:00:00,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998042189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:00:00,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:00:00,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:00:00,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807532937] [2024-11-08 18:00:00,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:00:00,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:00:00,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:00:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:00:00,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:00:00,144 INFO L87 Difference]: Start difference. First operand 579888 states and 832991 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)