./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem12_label16.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem12_label16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB --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 8986a14436e34fef464bf499036d3f2f22e9dee8c68dd84a0eb0b1e3795f6f62 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:22:34,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:22:34,966 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:22:34,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:22:34,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:22:35,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:22:35,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:22:35,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:22:35,017 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:22:35,018 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:22:35,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:22:35,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:22:35,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:22:35,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:22:35,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:22:35,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:22:35,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:22:35,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:22:35,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:22:35,022 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:22:35,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:22:35,022 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:22:35,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:22:35,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:22:35,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:22:35,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:22:35,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:22:35,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:22:35,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:22:35,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:22:35,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:22:35,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:22:35,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:22:35,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:22:35,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:22:35,027 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 8986a14436e34fef464bf499036d3f2f22e9dee8c68dd84a0eb0b1e3795f6f62 [2024-11-28 04:22:35,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:22:35,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:22:35,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:22:35,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:22:35,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:22:35,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem12_label16.c [2024-11-28 04:22:38,984 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/data/3afe0d7ab/30f41c23233c474fb7d05943fbf05099/FLAGf6e5b0b18 [2024-11-28 04:22:39,756 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:22:39,757 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/sv-benchmarks/c/eca-rers2012/Problem12_label16.c [2024-11-28 04:22:39,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/data/3afe0d7ab/30f41c23233c474fb7d05943fbf05099/FLAGf6e5b0b18 [2024-11-28 04:22:39,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/data/3afe0d7ab/30f41c23233c474fb7d05943fbf05099 [2024-11-28 04:22:39,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:22:39,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:22:39,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:22:39,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:22:39,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:22:39,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:22:39" (1/1) ... [2024-11-28 04:22:39,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ba7ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:39, skipping insertion in model container [2024-11-28 04:22:39,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:22:39" (1/1) ... [2024-11-28 04:22:40,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:22:40,431 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_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/sv-benchmarks/c/eca-rers2012/Problem12_label16.c[8006,8019] [2024-11-28 04:22:41,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:22:41,617 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:22:41,661 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_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/sv-benchmarks/c/eca-rers2012/Problem12_label16.c[8006,8019] [2024-11-28 04:22:42,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:22:42,333 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:22:42,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42 WrapperNode [2024-11-28 04:22:42,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:22:42,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:22:42,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:22:42,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:22:42,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:42,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:42,919 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-28 04:22:42,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:22:42,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:22:42,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:22:42,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:22:42,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:42,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,298 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]. [2024-11-28 04:22:43,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,466 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:22:43,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:22:43,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:22:43,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:22:43,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (1/1) ... [2024-11-28 04:22:43,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:22:43,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:22:43,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:22:43,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:22:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:22:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:22:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:22:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:22:43,958 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:22:43,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:22:51,457 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-28 04:22:51,457 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:22:51,514 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:22:51,514 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:22:51,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:22:51 BoogieIcfgContainer [2024-11-28 04:22:51,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:22:51,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:22:51,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:22:51,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:22:51,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:22:39" (1/3) ... [2024-11-28 04:22:51,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142aaa11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:22:51, skipping insertion in model container [2024-11-28 04:22:51,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:22:42" (2/3) ... [2024-11-28 04:22:51,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142aaa11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:22:51, skipping insertion in model container [2024-11-28 04:22:51,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:22:51" (3/3) ... [2024-11-28 04:22:51,533 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem12_label16.c [2024-11-28 04:22:51,554 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:22:51,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem12_label16.c that has 1 procedures, 818 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:22:51,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:22:51,705 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;@f1f0cc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:22:51,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:22:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:22:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:22:51,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:22:51,732 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:22:51,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:22:51,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:22:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2024-11-28 04:22:51,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:22:51,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985290526] [2024-11-28 04:22:51,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:22:51,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:22:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:22:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:22:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:22:52,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985290526] [2024-11-28 04:22:52,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985290526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:22:52,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:22:52,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:22:52,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408789713] [2024-11-28 04:22:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:22:52,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:22:52,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:22:52,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:22:52,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:22:52,764 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 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) [2024-11-28 04:23:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:03,962 INFO L93 Difference]: Finished difference Result 3142 states and 6130 transitions. [2024-11-28 04:23:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:23:03,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 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 [2024-11-28 04:23:03,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:04,000 INFO L225 Difference]: With dead ends: 3142 [2024-11-28 04:23:04,000 INFO L226 Difference]: Without dead ends: 2257 [2024-11-28 04:23:04,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:23:04,016 INFO L435 NwaCegarLoop]: 738 mSDtfsCounter, 2191 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5499 mSolverCounterSat, 1273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 6772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 5499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:04,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 765 Invalid, 6772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1273 Valid, 5499 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-28 04:23:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-28 04:23:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2257. [2024-11-28 04:23:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 2256 states have (on average 1.5749113475177305) internal successors, (3553), 2256 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:04,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3553 transitions. [2024-11-28 04:23:04,247 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3553 transitions. Word has length 65 [2024-11-28 04:23:04,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:04,248 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3553 transitions. [2024-11-28 04:23:04,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 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) [2024-11-28 04:23:04,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3553 transitions. [2024-11-28 04:23:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 04:23:04,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:04,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:04,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:23:04,260 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:04,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash -394335157, now seen corresponding path program 1 times [2024-11-28 04:23:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:04,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95608049] [2024-11-28 04:23:04,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:04,988 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:23:04,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:04,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95608049] [2024-11-28 04:23:04,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95608049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:04,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:04,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:04,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524573431] [2024-11-28 04:23:04,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:04,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:23:04,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:04,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:23:04,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:23:04,994 INFO L87 Difference]: Start difference. First operand 2257 states and 3553 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:11,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:11,524 INFO L93 Difference]: Finished difference Result 6051 states and 9916 transitions. [2024-11-28 04:23:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:23:11,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-28 04:23:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:11,542 INFO L225 Difference]: With dead ends: 6051 [2024-11-28 04:23:11,543 INFO L226 Difference]: Without dead ends: 3759 [2024-11-28 04:23:11,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:23:11,548 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 688 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:11,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 692 Invalid, 4443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 04:23:11,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2024-11-28 04:23:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3008. [2024-11-28 04:23:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4319920186232125) internal successors, (4306), 3007 states have internal predecessors, (4306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:11,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4306 transitions. [2024-11-28 04:23:11,643 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4306 transitions. Word has length 136 [2024-11-28 04:23:11,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:11,643 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4306 transitions. [2024-11-28 04:23:11,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4306 transitions. [2024-11-28 04:23:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 04:23:11,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:11,650 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:23:11,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:23:11,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:11,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:11,652 INFO L85 PathProgramCache]: Analyzing trace with hash 193266245, now seen corresponding path program 1 times [2024-11-28 04:23:11,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:11,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460324527] [2024-11-28 04:23:11,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:11,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-28 04:23:12,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:12,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460324527] [2024-11-28 04:23:12,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460324527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:12,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:12,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:23:12,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361376826] [2024-11-28 04:23:12,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:12,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:12,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:12,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:12,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:12,289 INFO L87 Difference]: Start difference. First operand 3008 states and 4306 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:16,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:16,283 INFO L93 Difference]: Finished difference Result 8267 states and 11519 transitions. [2024-11-28 04:23:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:16,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 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 275 [2024-11-28 04:23:16,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:16,305 INFO L225 Difference]: With dead ends: 8267 [2024-11-28 04:23:16,306 INFO L226 Difference]: Without dead ends: 5261 [2024-11-28 04:23:16,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:16,311 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 697 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:16,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 427 Invalid, 2771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:23:16,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-11-28 04:23:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5261. [2024-11-28 04:23:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 1.1982889733840305) internal successors, (6303), 5260 states have internal predecessors, (6303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:16,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 6303 transitions. [2024-11-28 04:23:16,426 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 6303 transitions. Word has length 275 [2024-11-28 04:23:16,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:16,427 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 6303 transitions. [2024-11-28 04:23:16,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:16,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 6303 transitions. [2024-11-28 04:23:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-28 04:23:16,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:16,432 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:23:16,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:23:16,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:16,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:16,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1350478634, now seen corresponding path program 1 times [2024-11-28 04:23:16,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:16,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975311090] [2024-11-28 04:23:16,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 04:23:17,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:17,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975311090] [2024-11-28 04:23:17,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975311090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:17,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:17,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:17,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786612511] [2024-11-28 04:23:17,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:17,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:23:17,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:17,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:23:17,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:23:17,142 INFO L87 Difference]: Start difference. First operand 5261 states and 6303 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:22,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:22,510 INFO L93 Difference]: Finished difference Result 12061 states and 15068 transitions. [2024-11-28 04:23:22,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:23:22,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 277 [2024-11-28 04:23:22,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:22,535 INFO L225 Difference]: With dead ends: 12061 [2024-11-28 04:23:22,535 INFO L226 Difference]: Without dead ends: 7516 [2024-11-28 04:23:22,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:23:22,543 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 850 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 3961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:22,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 326 Invalid, 3961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 04:23:22,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7516 states. [2024-11-28 04:23:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7516 to 7514. [2024-11-28 04:23:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7513 states have (on average 1.1812857713296951) internal successors, (8875), 7513 states have internal predecessors, (8875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 8875 transitions. [2024-11-28 04:23:22,712 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 8875 transitions. Word has length 277 [2024-11-28 04:23:22,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:22,713 INFO L471 AbstractCegarLoop]: Abstraction has 7514 states and 8875 transitions. [2024-11-28 04:23:22,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 8875 transitions. [2024-11-28 04:23:22,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-28 04:23:22,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:22,722 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:22,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:23:22,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:22,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:22,723 INFO L85 PathProgramCache]: Analyzing trace with hash 690770145, now seen corresponding path program 1 times [2024-11-28 04:23:22,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:22,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710688383] [2024-11-28 04:23:22,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:22,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:23,857 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:23:23,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:23,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710688383] [2024-11-28 04:23:23,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710688383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:23,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:23,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:23,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080671753] [2024-11-28 04:23:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:23,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:23,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:23,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:23,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:23,860 INFO L87 Difference]: Start difference. First operand 7514 states and 8875 transitions. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:28,386 INFO L93 Difference]: Finished difference Result 16528 states and 20146 transitions. [2024-11-28 04:23:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:28,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 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 354 [2024-11-28 04:23:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:28,420 INFO L225 Difference]: With dead ends: 16528 [2024-11-28 04:23:28,420 INFO L226 Difference]: Without dead ends: 9767 [2024-11-28 04:23:28,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:28,429 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 826 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:28,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 139 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [989 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 04:23:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-28 04:23:28,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-28 04:23:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.207352037681753) internal successors, (11791), 9766 states have internal predecessors, (11791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 11791 transitions. [2024-11-28 04:23:28,622 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 11791 transitions. Word has length 354 [2024-11-28 04:23:28,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:28,623 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 11791 transitions. [2024-11-28 04:23:28,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 11791 transitions. [2024-11-28 04:23:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-28 04:23:28,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:28,632 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:28,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:23:28,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:28,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:28,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1653153891, now seen corresponding path program 1 times [2024-11-28 04:23:28,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:28,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009246265] [2024-11-28 04:23:28,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:23:29,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:29,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009246265] [2024-11-28 04:23:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009246265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:29,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:29,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433133219] [2024-11-28 04:23:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:29,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:29,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:29,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:29,909 INFO L87 Difference]: Start difference. First operand 9767 states and 11791 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:34,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:34,193 INFO L93 Difference]: Finished difference Result 21034 states and 25744 transitions. [2024-11-28 04:23:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:34,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 378 [2024-11-28 04:23:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:34,225 INFO L225 Difference]: With dead ends: 21034 [2024-11-28 04:23:34,225 INFO L226 Difference]: Without dead ends: 12020 [2024-11-28 04:23:34,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:34,236 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 780 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:34,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 105 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:23:34,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12020 states. [2024-11-28 04:23:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12020 to 12020. [2024-11-28 04:23:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12020 states, 12019 states have (on average 1.1926116981446044) internal successors, (14334), 12019 states have internal predecessors, (14334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12020 states to 12020 states and 14334 transitions. [2024-11-28 04:23:34,450 INFO L78 Accepts]: Start accepts. Automaton has 12020 states and 14334 transitions. Word has length 378 [2024-11-28 04:23:34,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:34,451 INFO L471 AbstractCegarLoop]: Abstraction has 12020 states and 14334 transitions. [2024-11-28 04:23:34,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:34,452 INFO L276 IsEmpty]: Start isEmpty. Operand 12020 states and 14334 transitions. [2024-11-28 04:23:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:23:34,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:34,461 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:34,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:23:34,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:34,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:34,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1649053886, now seen corresponding path program 1 times [2024-11-28 04:23:34,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:34,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710370022] [2024-11-28 04:23:34,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:34,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 04:23:35,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:35,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710370022] [2024-11-28 04:23:35,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710370022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:35,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:35,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:35,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610731030] [2024-11-28 04:23:35,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:35,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:35,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:35,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:35,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:35,119 INFO L87 Difference]: Start difference. First operand 12020 states and 14334 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:39,671 INFO L93 Difference]: Finished difference Result 33801 states and 40725 transitions. [2024-11-28 04:23:39,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:39,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 392 [2024-11-28 04:23:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:39,711 INFO L225 Difference]: With dead ends: 33801 [2024-11-28 04:23:39,712 INFO L226 Difference]: Without dead ends: 22534 [2024-11-28 04:23:39,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:39,727 INFO L435 NwaCegarLoop]: 1322 mSDtfsCounter, 636 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 3053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:39,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1329 Invalid, 3053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:23:39,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22534 states. [2024-11-28 04:23:39,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22534 to 21783. [2024-11-28 04:23:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21783 states, 21782 states have (on average 1.1774400881461757) internal successors, (25647), 21782 states have internal predecessors, (25647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21783 states to 21783 states and 25647 transitions. [2024-11-28 04:23:40,052 INFO L78 Accepts]: Start accepts. Automaton has 21783 states and 25647 transitions. Word has length 392 [2024-11-28 04:23:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:40,052 INFO L471 AbstractCegarLoop]: Abstraction has 21783 states and 25647 transitions. [2024-11-28 04:23:40,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 21783 states and 25647 transitions. [2024-11-28 04:23:40,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:23:40,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:40,063 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:40,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:23:40,063 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:40,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:40,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1095609777, now seen corresponding path program 1 times [2024-11-28 04:23:40,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:40,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506587915] [2024-11-28 04:23:40,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:40,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 89 proven. 99 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:23:41,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506587915] [2024-11-28 04:23:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506587915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:23:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083589671] [2024-11-28 04:23:41,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:41,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:23:41,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:23:41,165 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:23:41,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:23:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:41,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:23:41,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:23:41,627 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:23:41,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:23:41,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083589671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:41,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:23:41,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:23:41,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674269605] [2024-11-28 04:23:41,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:41,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:41,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:41,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:41,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:23:41,630 INFO L87 Difference]: Start difference. First operand 21783 states and 25647 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:46,436 INFO L93 Difference]: Finished difference Result 59335 states and 70698 transitions. [2024-11-28 04:23:46,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:46,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:23:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:46,503 INFO L225 Difference]: With dead ends: 59335 [2024-11-28 04:23:46,503 INFO L226 Difference]: Without dead ends: 38305 [2024-11-28 04:23:46,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:23:46,521 INFO L435 NwaCegarLoop]: 1369 mSDtfsCounter, 697 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:46,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1377 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:23:46,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38305 states. [2024-11-28 04:23:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38305 to 36052. [2024-11-28 04:23:46,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36052 states, 36051 states have (on average 1.1419100718426674) internal successors, (41167), 36051 states have internal predecessors, (41167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36052 states to 36052 states and 41167 transitions. [2024-11-28 04:23:47,036 INFO L78 Accepts]: Start accepts. Automaton has 36052 states and 41167 transitions. Word has length 393 [2024-11-28 04:23:47,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:47,037 INFO L471 AbstractCegarLoop]: Abstraction has 36052 states and 41167 transitions. [2024-11-28 04:23:47,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:47,038 INFO L276 IsEmpty]: Start isEmpty. Operand 36052 states and 41167 transitions. [2024-11-28 04:23:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-28 04:23:47,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:47,051 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:47,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:23:47,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 04:23:47,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:47,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1192047628, now seen corresponding path program 1 times [2024-11-28 04:23:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900653057] [2024-11-28 04:23:47,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-28 04:23:47,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:47,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900653057] [2024-11-28 04:23:47,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900653057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:47,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:47,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:47,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207827853] [2024-11-28 04:23:47,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:47,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:47,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:47,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:47,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:47,661 INFO L87 Difference]: Start difference. First operand 36052 states and 41167 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:52,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:52,469 INFO L93 Difference]: Finished difference Result 87873 states and 101087 transitions. [2024-11-28 04:23:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:52,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 396 [2024-11-28 04:23:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:52,548 INFO L225 Difference]: With dead ends: 87873 [2024-11-28 04:23:52,548 INFO L226 Difference]: Without dead ends: 52574 [2024-11-28 04:23:52,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:52,576 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 709 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:52,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 335 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 04:23:52,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52574 states. [2024-11-28 04:23:53,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52574 to 50321. [2024-11-28 04:23:53,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50321 states, 50320 states have (on average 1.1420906200317964) internal successors, (57470), 50320 states have internal predecessors, (57470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50321 states to 50321 states and 57470 transitions. [2024-11-28 04:23:53,264 INFO L78 Accepts]: Start accepts. Automaton has 50321 states and 57470 transitions. Word has length 396 [2024-11-28 04:23:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:53,265 INFO L471 AbstractCegarLoop]: Abstraction has 50321 states and 57470 transitions. [2024-11-28 04:23:53,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 50321 states and 57470 transitions. [2024-11-28 04:23:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-28 04:23:53,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:53,279 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:53,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:23:53,280 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:53,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1851649601, now seen corresponding path program 1 times [2024-11-28 04:23:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331824212] [2024-11-28 04:23:53,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:23:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 618 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-28 04:23:53,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:23:53,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331824212] [2024-11-28 04:23:53,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331824212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:23:53,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:23:53,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:23:53,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104486817] [2024-11-28 04:23:53,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:23:53,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:23:53,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:23:53,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:23:53,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:53,800 INFO L87 Difference]: Start difference. First operand 50321 states and 57470 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 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) [2024-11-28 04:23:58,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:23:58,683 INFO L93 Difference]: Finished difference Result 124672 states and 144149 transitions. [2024-11-28 04:23:58,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:23:58,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 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) Word has length 484 [2024-11-28 04:23:58,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:23:58,762 INFO L225 Difference]: With dead ends: 124672 [2024-11-28 04:23:58,762 INFO L226 Difference]: Without dead ends: 75104 [2024-11-28 04:23:58,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:23:58,797 INFO L435 NwaCegarLoop]: 1129 mSDtfsCounter, 754 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:23:58,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1136 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-28 04:23:58,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75104 states. [2024-11-28 04:23:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75104 to 70598. [2024-11-28 04:23:59,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70598 states, 70597 states have (on average 1.1449495021034888) internal successors, (80830), 70597 states have internal predecessors, (80830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:23:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70598 states to 70598 states and 80830 transitions. [2024-11-28 04:23:59,703 INFO L78 Accepts]: Start accepts. Automaton has 70598 states and 80830 transitions. Word has length 484 [2024-11-28 04:23:59,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:23:59,704 INFO L471 AbstractCegarLoop]: Abstraction has 70598 states and 80830 transitions. [2024-11-28 04:23:59,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 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) [2024-11-28 04:23:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand 70598 states and 80830 transitions. [2024-11-28 04:23:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-28 04:23:59,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:23:59,719 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:23:59,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:23:59,719 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:23:59,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:23:59,720 INFO L85 PathProgramCache]: Analyzing trace with hash 100120526, now seen corresponding path program 1 times [2024-11-28 04:23:59,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:23:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088952534] [2024-11-28 04:23:59,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:23:59,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:23:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 645 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:24:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:00,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088952534] [2024-11-28 04:24:00,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088952534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:00,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:00,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331927488] [2024-11-28 04:24:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:00,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:00,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:00,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:00,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:00,371 INFO L87 Difference]: Start difference. First operand 70598 states and 80830 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:05,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:05,523 INFO L93 Difference]: Finished difference Result 141945 states and 162403 transitions. [2024-11-28 04:24:05,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:05,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 498 [2024-11-28 04:24:05,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:05,604 INFO L225 Difference]: With dead ends: 141945 [2024-11-28 04:24:05,605 INFO L226 Difference]: Without dead ends: 72100 [2024-11-28 04:24:05,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:05,646 INFO L435 NwaCegarLoop]: 1179 mSDtfsCounter, 694 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:05,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1187 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:24:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72100 states. [2024-11-28 04:24:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72100 to 70598. [2024-11-28 04:24:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70598 states, 70597 states have (on average 1.125855206311883) internal successors, (79482), 70597 states have internal predecessors, (79482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70598 states to 70598 states and 79482 transitions. [2024-11-28 04:24:06,563 INFO L78 Accepts]: Start accepts. Automaton has 70598 states and 79482 transitions. Word has length 498 [2024-11-28 04:24:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:06,564 INFO L471 AbstractCegarLoop]: Abstraction has 70598 states and 79482 transitions. [2024-11-28 04:24:06,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:06,564 INFO L276 IsEmpty]: Start isEmpty. Operand 70598 states and 79482 transitions. [2024-11-28 04:24:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2024-11-28 04:24:06,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:06,571 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:06,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:24:06,572 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1057310872, now seen corresponding path program 1 times [2024-11-28 04:24:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:06,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795315858] [2024-11-28 04:24:06,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:06,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 621 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-28 04:24:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795315858] [2024-11-28 04:24:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795315858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:06,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74888670] [2024-11-28 04:24:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:06,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:06,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:06,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:06,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:06,905 INFO L87 Difference]: Start difference. First operand 70598 states and 79482 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:11,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:11,842 INFO L93 Difference]: Finished difference Result 186254 states and 210135 transitions. [2024-11-28 04:24:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:11,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 502 [2024-11-28 04:24:11,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:11,960 INFO L225 Difference]: With dead ends: 186254 [2024-11-28 04:24:11,960 INFO L226 Difference]: Without dead ends: 116409 [2024-11-28 04:24:11,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:11,996 INFO L435 NwaCegarLoop]: 1262 mSDtfsCounter, 664 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:11,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1270 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:24:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116409 states. [2024-11-28 04:24:13,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116409 to 113405. [2024-11-28 04:24:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113405 states, 113404 states have (on average 1.103223872173821) internal successors, (125110), 113404 states have internal predecessors, (125110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:13,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113405 states to 113405 states and 125110 transitions. [2024-11-28 04:24:13,889 INFO L78 Accepts]: Start accepts. Automaton has 113405 states and 125110 transitions. Word has length 502 [2024-11-28 04:24:13,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:13,890 INFO L471 AbstractCegarLoop]: Abstraction has 113405 states and 125110 transitions. [2024-11-28 04:24:13,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 113405 states and 125110 transitions. [2024-11-28 04:24:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2024-11-28 04:24:13,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:13,910 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:13,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:24:13,911 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:13,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:13,911 INFO L85 PathProgramCache]: Analyzing trace with hash 149394314, now seen corresponding path program 1 times [2024-11-28 04:24:13,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:13,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056622729] [2024-11-28 04:24:13,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:13,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:24:14,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:14,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056622729] [2024-11-28 04:24:14,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056622729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:14,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:14,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:14,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439734024] [2024-11-28 04:24:14,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:14,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:14,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:14,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:14,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:14,672 INFO L87 Difference]: Start difference. First operand 113405 states and 125110 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:19,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:19,154 INFO L93 Difference]: Finished difference Result 229061 states and 252499 transitions. [2024-11-28 04:24:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:19,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 538 [2024-11-28 04:24:19,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:19,284 INFO L225 Difference]: With dead ends: 229061 [2024-11-28 04:24:19,284 INFO L226 Difference]: Without dead ends: 112654 [2024-11-28 04:24:19,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:19,322 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 730 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:19,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1314 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:24:19,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112654 states. [2024-11-28 04:24:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112654 to 109650. [2024-11-28 04:24:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109650 states, 109649 states have (on average 1.0914098623790458) internal successors, (119672), 109649 states have internal predecessors, (119672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109650 states to 109650 states and 119672 transitions. [2024-11-28 04:24:21,022 INFO L78 Accepts]: Start accepts. Automaton has 109650 states and 119672 transitions. Word has length 538 [2024-11-28 04:24:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:21,023 INFO L471 AbstractCegarLoop]: Abstraction has 109650 states and 119672 transitions. [2024-11-28 04:24:21,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:21,023 INFO L276 IsEmpty]: Start isEmpty. Operand 109650 states and 119672 transitions. [2024-11-28 04:24:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2024-11-28 04:24:21,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:21,037 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:21,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:24:21,037 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:21,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash -662461341, now seen corresponding path program 1 times [2024-11-28 04:24:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:21,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068713870] [2024-11-28 04:24:21,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-28 04:24:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:21,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068713870] [2024-11-28 04:24:21,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068713870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:21,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:21,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:21,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422730650] [2024-11-28 04:24:21,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:21,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:21,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:21,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:21,847 INFO L87 Difference]: Start difference. First operand 109650 states and 119672 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:26,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:26,173 INFO L93 Difference]: Finished difference Result 218547 states and 238586 transitions. [2024-11-28 04:24:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:26,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 539 [2024-11-28 04:24:26,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:26,478 INFO L225 Difference]: With dead ends: 218547 [2024-11-28 04:24:26,478 INFO L226 Difference]: Without dead ends: 109650 [2024-11-28 04:24:26,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:26,511 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 694 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:26,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1214 Invalid, 2442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 04:24:26,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109650 states. [2024-11-28 04:24:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109650 to 108899. [2024-11-28 04:24:27,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108899 states, 108898 states have (on average 1.0848316773494462) internal successors, (118136), 108898 states have internal predecessors, (118136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108899 states to 108899 states and 118136 transitions. [2024-11-28 04:24:28,069 INFO L78 Accepts]: Start accepts. Automaton has 108899 states and 118136 transitions. Word has length 539 [2024-11-28 04:24:28,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:28,069 INFO L471 AbstractCegarLoop]: Abstraction has 108899 states and 118136 transitions. [2024-11-28 04:24:28,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 108899 states and 118136 transitions. [2024-11-28 04:24:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-11-28 04:24:28,084 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:28,084 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:28,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:24:28,085 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:28,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:28,086 INFO L85 PathProgramCache]: Analyzing trace with hash 742893261, now seen corresponding path program 1 times [2024-11-28 04:24:28,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:28,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329156089] [2024-11-28 04:24:28,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:28,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-28 04:24:28,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:28,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329156089] [2024-11-28 04:24:28,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329156089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:28,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:24:28,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:24:28,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283273409] [2024-11-28 04:24:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:28,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:28,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:28,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:28,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:28,730 INFO L87 Difference]: Start difference. First operand 108899 states and 118136 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:33,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:33,364 INFO L93 Difference]: Finished difference Result 233567 states and 253483 transitions. [2024-11-28 04:24:33,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:33,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 556 [2024-11-28 04:24:33,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:33,487 INFO L225 Difference]: With dead ends: 233567 [2024-11-28 04:24:33,487 INFO L226 Difference]: Without dead ends: 125421 [2024-11-28 04:24:33,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:24:33,533 INFO L435 NwaCegarLoop]: 1112 mSDtfsCounter, 808 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:33,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1120 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:24:33,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125421 states. [2024-11-28 04:24:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125421 to 123919. [2024-11-28 04:24:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123919 states, 123918 states have (on average 1.0792863022321213) internal successors, (133743), 123918 states have internal predecessors, (133743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123919 states to 123919 states and 133743 transitions. [2024-11-28 04:24:35,222 INFO L78 Accepts]: Start accepts. Automaton has 123919 states and 133743 transitions. Word has length 556 [2024-11-28 04:24:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:35,223 INFO L471 AbstractCegarLoop]: Abstraction has 123919 states and 133743 transitions. [2024-11-28 04:24:35,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 123919 states and 133743 transitions. [2024-11-28 04:24:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2024-11-28 04:24:35,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:35,247 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:35,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:24:35,247 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:35,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1672176978, now seen corresponding path program 1 times [2024-11-28 04:24:35,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:35,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89731653] [2024-11-28 04:24:35,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:35,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 811 proven. 251 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:24:39,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:39,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89731653] [2024-11-28 04:24:39,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89731653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:24:39,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25301507] [2024-11-28 04:24:39,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:39,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:39,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:39,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:39,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:24:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:39,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:24:39,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-28 04:24:40,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:40,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25301507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:40,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:24:40,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-28 04:24:40,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369591185] [2024-11-28 04:24:40,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:40,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:40,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:40,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:24:40,045 INFO L87 Difference]: Start difference. First operand 123919 states and 133743 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:45,438 INFO L93 Difference]: Finished difference Result 290643 states and 314410 transitions. [2024-11-28 04:24:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:45,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 711 [2024-11-28 04:24:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:45,612 INFO L225 Difference]: With dead ends: 290643 [2024-11-28 04:24:45,612 INFO L226 Difference]: Without dead ends: 166726 [2024-11-28 04:24:45,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:24:45,675 INFO L435 NwaCegarLoop]: 1237 mSDtfsCounter, 728 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:45,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1245 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:24:45,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166726 states. [2024-11-28 04:24:47,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166726 to 163722. [2024-11-28 04:24:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163722 states, 163721 states have (on average 1.0758913028872288) internal successors, (176146), 163721 states have internal predecessors, (176146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163722 states to 163722 states and 176146 transitions. [2024-11-28 04:24:48,098 INFO L78 Accepts]: Start accepts. Automaton has 163722 states and 176146 transitions. Word has length 711 [2024-11-28 04:24:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:48,099 INFO L471 AbstractCegarLoop]: Abstraction has 163722 states and 176146 transitions. [2024-11-28 04:24:48,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 163722 states and 176146 transitions. [2024-11-28 04:24:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2024-11-28 04:24:48,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:24:48,144 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:48,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:24:48,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:24:48,349 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:24:48,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:24:48,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1980619764, now seen corresponding path program 1 times [2024-11-28 04:24:48,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:24:48,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122522500] [2024-11-28 04:24:48,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:48,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:24:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 616 proven. 108 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-28 04:24:50,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:24:50,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122522500] [2024-11-28 04:24:50,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122522500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:24:50,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843275321] [2024-11-28 04:24:50,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:24:50,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:24:50,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:24:50,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:24:50,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:24:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:24:51,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:24:51,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:24:51,962 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-28 04:24:51,962 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:24:51,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843275321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:24:51,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:24:51,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-28 04:24:51,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703345202] [2024-11-28 04:24:51,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:24:51,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:24:51,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:24:51,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:24:51,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:51,968 INFO L87 Difference]: Start difference. First operand 163722 states and 176146 transitions. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 2 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:57,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:24:57,195 INFO L93 Difference]: Finished difference Result 326689 states and 351533 transitions. [2024-11-28 04:24:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:24:57,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 2 states have internal predecessors, (630), 0 states have call successors, (0), 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 909 [2024-11-28 04:24:57,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:24:57,197 INFO L225 Difference]: With dead ends: 326689 [2024-11-28 04:24:57,197 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:24:57,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 911 GetRequests, 908 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:24:57,269 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 603 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:24:57,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 389 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:24:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:24:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:24:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:57,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:24:57,271 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 909 [2024-11-28 04:24:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:24:57,271 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:24:57,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 2 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:24:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:24:57,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:24:57,273 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:24:57,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:24:57,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:24:57,477 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:24:57,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:25:04,043 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:25:04,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:25:04 BoogieIcfgContainer [2024-11-28 04:25:04,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:25:04,067 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:25:04,067 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:25:04,067 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:25:04,068 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:22:51" (3/4) ... [2024-11-28 04:25:04,071 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:25:04,121 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-28 04:25:04,127 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:25:04,134 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:25:04,140 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:25:04,647 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:25:04,648 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:25:04,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:25:04,650 INFO L158 Benchmark]: Toolchain (without parser) took 144803.12ms. Allocated memory was 117.4MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 79.2MB in the beginning and 9.8GB in the end (delta: -9.7GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2024-11-28 04:25:04,650 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:25:04,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2487.24ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 50.1MB in the end (delta: 28.9MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-28 04:25:04,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 583.65ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 50.1MB in the beginning and 128.0MB in the end (delta: -77.9MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2024-11-28 04:25:04,652 INFO L158 Benchmark]: Boogie Preprocessor took 768.46ms. Allocated memory was 234.9MB in the beginning and 620.8MB in the end (delta: 385.9MB). Free memory was 128.0MB in the beginning and 499.0MB in the end (delta: -371.0MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2024-11-28 04:25:04,652 INFO L158 Benchmark]: RCFGBuilder took 7824.43ms. Allocated memory was 620.8MB in the beginning and 394.3MB in the end (delta: -226.5MB). Free memory was 499.0MB in the beginning and 120.1MB in the end (delta: 378.8MB). Peak memory consumption was 227.6MB. Max. memory is 16.1GB. [2024-11-28 04:25:04,652 INFO L158 Benchmark]: TraceAbstraction took 132545.17ms. Allocated memory was 394.3MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 120.1MB in the beginning and 9.9GB in the end (delta: -9.7GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2024-11-28 04:25:04,652 INFO L158 Benchmark]: Witness Printer took 581.46ms. Allocated memory is still 12.4GB. Free memory was 9.9GB in the beginning and 9.8GB in the end (delta: 54.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 04:25:04,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2487.24ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 50.1MB in the end (delta: 28.9MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 583.65ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 50.1MB in the beginning and 128.0MB in the end (delta: -77.9MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 768.46ms. Allocated memory was 234.9MB in the beginning and 620.8MB in the end (delta: 385.9MB). Free memory was 128.0MB in the beginning and 499.0MB in the end (delta: -371.0MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. * RCFGBuilder took 7824.43ms. Allocated memory was 620.8MB in the beginning and 394.3MB in the end (delta: -226.5MB). Free memory was 499.0MB in the beginning and 120.1MB in the end (delta: 378.8MB). Peak memory consumption was 227.6MB. Max. memory is 16.1GB. * TraceAbstraction took 132545.17ms. Allocated memory was 394.3MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 120.1MB in the beginning and 9.9GB in the end (delta: -9.7GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 581.46ms. Allocated memory is still 12.4GB. Free memory was 9.9GB in the beginning and 9.8GB in the end (delta: 54.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 217]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 818 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 125.8s, OverallIterations: 17, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 91.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13749 SdHoareTripleChecker+Valid, 80.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13749 mSDsluCounter, 14370 SdHoareTripleChecker+Invalid, 68.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 10138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43938 IncrementalHoareTripleChecker+Invalid, 54076 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10138 mSolverCounterUnsat, 14210 mSDtfsCounter, 43938 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2074 GetRequests, 2040 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163722occurred in iteration=16, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 23283 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 9416 NumberOfCodeBlocks, 9416 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9396 ConstructedInterpolants, 0 QuantifiedInterpolants, 23816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2459 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 20 InterpolantComputations, 17 PerfectInterpolantSequences, 11947/12405 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4828]: Loop Invariant Derived loop invariant: (((((((((((((((((a2 <= 170) && (a7 == 13)) || ((a7 == 12) && (a24 <= 13))) || ((a7 == 13) && (190 <= a2))) || ((a7 == 13) && (3 != a5))) || ((14 <= a7) && (15 <= a24))) || (((a2 <= 170) && (((long long) a17 + 124) <= 0)) && (3 == a5))) || ((3 != a5) && (a7 == 12))) || ((((a2 <= 170) && (a24 <= 14)) && (142 <= a17)) && (3 == a5))) || ((14 <= a7) && (3 != a5))) || ((190 <= a2) && (a7 == 12))) || ((a7 == 13) && (a24 <= 13))) || ((((a2 <= 170) && (a24 <= 14)) && (6 != a5)) && (((long long) a17 + 124) <= 0))) || (((a2 <= 170) && (a5 <= 4)) && (a24 <= 13))) || ((14 <= a7) && (190 <= a2))) || (((a2 <= 170) && (a24 <= 14)) && (a7 == 12))) || ((((a2 <= 170) && (a24 <= 14)) && (3 != a5)) && (a5 <= 4))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:25:04,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f1f348-523c-4d6a-a6e4-1d33e6a77a26/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE