./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.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_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/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_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/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_549581eb-4629-46ce-9450-74e41dc153c9/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 a3df27f87602fca8935d2269a873dfd3f1a5195383d477434680a0bc703d239a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:03:56,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:03:56,192 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:03:56,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:03:56,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:03:56,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:03:56,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:03:56,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:03:56,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:03:56,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:03:56,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:03:56,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:03:56,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:03:56,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:03:56,255 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:03:56,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:03:56,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:03:56,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:03:56,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:03:56,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:03:56,257 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:03:56,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:03:56,258 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:03:56,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:03:56,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:03:56,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:03:56,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:03:56,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:03:56,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:03:56,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:03:56,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:03:56,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:03:56,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:03:56,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:03:56,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:03:56,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:03:56,262 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_549581eb-4629-46ce-9450-74e41dc153c9/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 -> a3df27f87602fca8935d2269a873dfd3f1a5195383d477434680a0bc703d239a [2024-11-28 03:03:56,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:03:56,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:03:56,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:03:56,637 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:03:56,637 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:03:56,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2024-11-28 03:03:59,855 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/data/e9d84add4/16f90d4dc9f74f9099abe05fdc616964/FLAG2f43e2e21 [2024-11-28 03:04:00,192 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:04:00,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2024-11-28 03:04:00,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/data/e9d84add4/16f90d4dc9f74f9099abe05fdc616964/FLAG2f43e2e21 [2024-11-28 03:04:00,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/data/e9d84add4/16f90d4dc9f74f9099abe05fdc616964 [2024-11-28 03:04:00,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:04:00,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:04:00,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:04:00,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:04:00,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:04:00,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa3c49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00, skipping insertion in model container [2024-11-28 03:04:00,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:04:00,551 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_549581eb-4629-46ce-9450-74e41dc153c9/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c[26518,26531] [2024-11-28 03:04:00,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:04:00,570 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:04:00,650 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_549581eb-4629-46ce-9450-74e41dc153c9/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.UNBOUNDED.pals.c[26518,26531] [2024-11-28 03:04:00,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:04:00,677 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:04:00,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00 WrapperNode [2024-11-28 03:04:00,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:04:00,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:04:00,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:04:00,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:04:00,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,752 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 530 [2024-11-28 03:04:00,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:04:00,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:04:00,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:04:00,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:04:00,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,808 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 03:04:00,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,826 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:04:00,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:04:00,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:04:00,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:04:00,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (1/1) ... [2024-11-28 03:04:00,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:04:00,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:04:00,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:04:00,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_549581eb-4629-46ce-9450-74e41dc153c9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:04:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:04:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:04:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:04:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:04:01,107 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:04:01,109 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:04:01,944 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-28 03:04:01,944 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:04:01,959 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:04:01,961 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:04:01,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:01 BoogieIcfgContainer [2024-11-28 03:04:01,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:04:01,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:04:01,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:04:01,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:04:01,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:04:00" (1/3) ... [2024-11-28 03:04:01,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c39772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:01, skipping insertion in model container [2024-11-28 03:04:01,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:00" (2/3) ... [2024-11-28 03:04:01,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c39772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:01, skipping insertion in model container [2024-11-28 03:04:01,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:01" (3/3) ... [2024-11-28 03:04:01,978 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c [2024-11-28 03:04:01,993 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:04:01,997 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c that has 1 procedures, 133 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:04:02,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:04:02,072 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;@3c6d0eaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:04:02,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:04:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 131 states have (on average 1.7938931297709924) internal successors, (235), 132 states have internal predecessors, (235), 0 states have call successors, (0), 0 states 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 03:04:02,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 03:04:02,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:02,085 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] [2024-11-28 03:04:02,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:02,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:02,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1185784111, now seen corresponding path program 1 times [2024-11-28 03:04:02,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:02,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604588282] [2024-11-28 03:04:02,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:02,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:02,568 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 03:04:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604588282] [2024-11-28 03:04:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604588282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:02,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:02,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:04:02,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904882061] [2024-11-28 03:04:02,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:02,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:04:02,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:02,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:04:02,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:04:02,607 INFO L87 Difference]: Start difference. First operand has 133 states, 131 states have (on average 1.7938931297709924) internal successors, (235), 132 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 03:04:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:02,632 INFO L93 Difference]: Finished difference Result 196 states and 339 transitions. [2024-11-28 03:04:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:04:02,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-28 03:04:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:02,642 INFO L225 Difference]: With dead ends: 196 [2024-11-28 03:04:02,642 INFO L226 Difference]: Without dead ends: 129 [2024-11-28 03:04:02,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:04:02,648 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:02,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-28 03:04:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-28 03:04:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.78125) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states 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 03:04:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 228 transitions. [2024-11-28 03:04:02,700 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 228 transitions. Word has length 29 [2024-11-28 03:04:02,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:02,701 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 228 transitions. [2024-11-28 03:04:02,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 03:04:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 228 transitions. [2024-11-28 03:04:02,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 03:04:02,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:02,704 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] [2024-11-28 03:04:02,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:04:02,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:02,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:02,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1319797617, now seen corresponding path program 1 times [2024-11-28 03:04:02,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:02,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382795121] [2024-11-28 03:04:02,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:02,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:03,205 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 03:04:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:03,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382795121] [2024-11-28 03:04:03,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382795121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:03,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:03,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:04:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343769833] [2024-11-28 03:04:03,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:03,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:04:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:03,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:04:03,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:03,209 INFO L87 Difference]: Start difference. First operand 129 states and 228 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 03:04:03,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:03,378 INFO L93 Difference]: Finished difference Result 195 states and 332 transitions. [2024-11-28 03:04:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:04:03,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-28 03:04:03,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:03,384 INFO L225 Difference]: With dead ends: 195 [2024-11-28 03:04:03,384 INFO L226 Difference]: Without dead ends: 129 [2024-11-28 03:04:03,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:04:03,385 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:03,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 838 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:04:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-28 03:04:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-28 03:04:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3046875) internal successors, (167), 128 states have internal predecessors, (167), 0 states have call successors, (0), 0 states 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 03:04:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2024-11-28 03:04:03,403 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 29 [2024-11-28 03:04:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:03,403 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2024-11-28 03:04:03,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 03:04:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2024-11-28 03:04:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 03:04:03,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:03,409 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, 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 03:04:03,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:04:03,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:03,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1496007295, now seen corresponding path program 1 times [2024-11-28 03:04:03,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:03,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376702394] [2024-11-28 03:04:03,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:03,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:04,053 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 03:04:04,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:04,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376702394] [2024-11-28 03:04:04,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376702394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:04,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:04,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:04:04,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923414542] [2024-11-28 03:04:04,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:04,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:04:04,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:04,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:04:04,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:04:04,056 INFO L87 Difference]: Start difference. First operand 129 states and 167 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 03:04:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:04,922 INFO L93 Difference]: Finished difference Result 1121 states and 1767 transitions. [2024-11-28 03:04:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:04:04,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-28 03:04:04,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:04,932 INFO L225 Difference]: With dead ends: 1121 [2024-11-28 03:04:04,932 INFO L226 Difference]: Without dead ends: 1059 [2024-11-28 03:04:04,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:04:04,937 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1981 mSDsluCounter, 4380 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:04,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 4541 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:04:04,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-28 03:04:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 189. [2024-11-28 03:04:05,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 1.4042553191489362) internal successors, (264), 188 states have internal predecessors, (264), 0 states have call successors, (0), 0 states 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 03:04:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 264 transitions. [2024-11-28 03:04:05,015 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 264 transitions. Word has length 89 [2024-11-28 03:04:05,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:05,016 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 264 transitions. [2024-11-28 03:04:05,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 03:04:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 264 transitions. [2024-11-28 03:04:05,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 03:04:05,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:05,021 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, 1, 1, 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 03:04:05,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:04:05,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:05,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:05,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1728245231, now seen corresponding path program 1 times [2024-11-28 03:04:05,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:05,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96446240] [2024-11-28 03:04:05,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:05,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:05,344 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 03:04:05,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:05,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96446240] [2024-11-28 03:04:05,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96446240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:05,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:05,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:05,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195475606] [2024-11-28 03:04:05,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:05,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:05,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:05,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:05,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:05,347 INFO L87 Difference]: Start difference. First operand 189 states and 264 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 03:04:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:05,393 INFO L93 Difference]: Finished difference Result 422 states and 639 transitions. [2024-11-28 03:04:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:05,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-28 03:04:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:05,396 INFO L225 Difference]: With dead ends: 422 [2024-11-28 03:04:05,396 INFO L226 Difference]: Without dead ends: 300 [2024-11-28 03:04:05,397 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 03:04:05,397 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 69 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:05,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 256 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-28 03:04:05,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 296. [2024-11-28 03:04:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.471186440677966) internal successors, (434), 295 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 434 transitions. [2024-11-28 03:04:05,414 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 434 transitions. Word has length 91 [2024-11-28 03:04:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:05,414 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 434 transitions. [2024-11-28 03:04:05,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 03:04:05,415 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 434 transitions. [2024-11-28 03:04:05,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 03:04:05,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:05,422 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, 1, 1, 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 03:04:05,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:04:05,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:05,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:05,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1794738743, now seen corresponding path program 1 times [2024-11-28 03:04:05,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:05,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926634269] [2024-11-28 03:04:05,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:05,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:06,392 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 03:04:06,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:06,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926634269] [2024-11-28 03:04:06,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926634269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:06,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:06,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:04:06,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093332480] [2024-11-28 03:04:06,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:06,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:04:06,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:06,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:04:06,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:04:06,396 INFO L87 Difference]: Start difference. First operand 296 states and 434 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 03:04:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:07,135 INFO L93 Difference]: Finished difference Result 527 states and 802 transitions. [2024-11-28 03:04:07,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:04:07,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-28 03:04:07,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:07,138 INFO L225 Difference]: With dead ends: 527 [2024-11-28 03:04:07,140 INFO L226 Difference]: Without dead ends: 298 [2024-11-28 03:04:07,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:04:07,144 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 644 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:07,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 840 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:04:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-28 03:04:07,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2024-11-28 03:04:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.464406779661017) internal successors, (432), 295 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 03:04:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 432 transitions. [2024-11-28 03:04:07,170 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 432 transitions. Word has length 91 [2024-11-28 03:04:07,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:07,170 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 432 transitions. [2024-11-28 03:04:07,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 03:04:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 432 transitions. [2024-11-28 03:04:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:04:07,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:07,177 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, 1, 1, 1, 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 03:04:07,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:04:07,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:07,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash -612396632, now seen corresponding path program 1 times [2024-11-28 03:04:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969371940] [2024-11-28 03:04:07,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:07,721 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 03:04:07,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969371940] [2024-11-28 03:04:07,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969371940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:07,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:07,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:04:07,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199639915] [2024-11-28 03:04:07,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:07,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:04:07,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:07,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:04:07,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:04:07,724 INFO L87 Difference]: Start difference. First operand 296 states and 432 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 03:04:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:07,786 INFO L93 Difference]: Finished difference Result 304 states and 441 transitions. [2024-11-28 03:04:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:04:07,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-28 03:04:07,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:07,789 INFO L225 Difference]: With dead ends: 304 [2024-11-28 03:04:07,789 INFO L226 Difference]: Without dead ends: 302 [2024-11-28 03:04:07,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:04:07,790 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:07,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1114 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:04:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-28 03:04:07,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-28 03:04:07,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.451827242524917) internal successors, (437), 301 states have internal predecessors, (437), 0 states have call successors, (0), 0 states 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 03:04:07,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 437 transitions. [2024-11-28 03:04:07,819 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 437 transitions. Word has length 92 [2024-11-28 03:04:07,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:07,820 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 437 transitions. [2024-11-28 03:04:07,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 03:04:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 437 transitions. [2024-11-28 03:04:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:07,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:07,823 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, 1, 1, 1, 1, 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 03:04:07,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:04:07,824 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:07,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash 759003703, now seen corresponding path program 1 times [2024-11-28 03:04:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:07,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495240899] [2024-11-28 03:04:07,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:07,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:07,974 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 03:04:07,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:07,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495240899] [2024-11-28 03:04:07,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495240899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:07,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416436184] [2024-11-28 03:04:07,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:07,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:07,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:07,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:07,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:07,976 INFO L87 Difference]: Start difference. First operand 302 states and 437 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:08,014 INFO L93 Difference]: Finished difference Result 756 states and 1149 transitions. [2024-11-28 03:04:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:08,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:08,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:08,018 INFO L225 Difference]: With dead ends: 756 [2024-11-28 03:04:08,019 INFO L226 Difference]: Without dead ends: 521 [2024-11-28 03:04:08,019 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 03:04:08,020 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 88 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:08,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 349 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-28 03:04:08,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2024-11-28 03:04:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.494208494208494) internal successors, (774), 518 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 774 transitions. [2024-11-28 03:04:08,059 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 774 transitions. Word has length 93 [2024-11-28 03:04:08,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:08,059 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 774 transitions. [2024-11-28 03:04:08,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,060 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 774 transitions. [2024-11-28 03:04:08,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:08,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:08,062 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, 1, 1, 1, 1, 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 03:04:08,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:04:08,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:08,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:08,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1593894089, now seen corresponding path program 1 times [2024-11-28 03:04:08,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:08,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952445432] [2024-11-28 03:04:08,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:08,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:08,204 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 03:04:08,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:08,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952445432] [2024-11-28 03:04:08,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952445432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:08,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:08,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055275393] [2024-11-28 03:04:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:08,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:08,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:08,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:08,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:08,206 INFO L87 Difference]: Start difference. First operand 519 states and 774 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:08,244 INFO L93 Difference]: Finished difference Result 1391 states and 2132 transitions. [2024-11-28 03:04:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:08,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:08,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:08,251 INFO L225 Difference]: With dead ends: 1391 [2024-11-28 03:04:08,251 INFO L226 Difference]: Without dead ends: 939 [2024-11-28 03:04:08,252 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 03:04:08,253 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 86 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:08,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:08,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-28 03:04:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 937. [2024-11-28 03:04:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.5128205128205128) internal successors, (1416), 936 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states 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 03:04:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1416 transitions. [2024-11-28 03:04:08,311 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1416 transitions. Word has length 93 [2024-11-28 03:04:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:08,312 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1416 transitions. [2024-11-28 03:04:08,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1416 transitions. [2024-11-28 03:04:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:08,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:08,313 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, 1, 1, 1, 1, 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 03:04:08,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:04:08,313 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:08,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1430979529, now seen corresponding path program 1 times [2024-11-28 03:04:08,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:08,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958488387] [2024-11-28 03:04:08,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:08,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:08,456 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 03:04:08,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:08,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958488387] [2024-11-28 03:04:08,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958488387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:08,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:08,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998824257] [2024-11-28 03:04:08,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:08,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:08,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:08,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:08,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:08,463 INFO L87 Difference]: Start difference. First operand 937 states and 1416 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:08,523 INFO L93 Difference]: Finished difference Result 2613 states and 4002 transitions. [2024-11-28 03:04:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:08,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:08,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:08,531 INFO L225 Difference]: With dead ends: 2613 [2024-11-28 03:04:08,531 INFO L226 Difference]: Without dead ends: 1743 [2024-11-28 03:04:08,532 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 03:04:08,533 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 84 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:08,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-28 03:04:08,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1741. [2024-11-28 03:04:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 1.5149425287356322) internal successors, (2636), 1740 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states 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 03:04:08,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2636 transitions. [2024-11-28 03:04:08,607 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2636 transitions. Word has length 93 [2024-11-28 03:04:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:08,607 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 2636 transitions. [2024-11-28 03:04:08,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2636 transitions. [2024-11-28 03:04:08,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:08,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:08,609 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, 1, 1, 1, 1, 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 03:04:08,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:04:08,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:08,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1167123145, now seen corresponding path program 1 times [2024-11-28 03:04:08,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:08,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101269429] [2024-11-28 03:04:08,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:08,769 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 03:04:08,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:08,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101269429] [2024-11-28 03:04:08,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101269429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:08,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:08,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:08,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422627802] [2024-11-28 03:04:08,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:08,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:08,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:08,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:08,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:08,773 INFO L87 Difference]: Start difference. First operand 1741 states and 2636 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:08,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:08,876 INFO L93 Difference]: Finished difference Result 4961 states and 7550 transitions. [2024-11-28 03:04:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:08,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:08,891 INFO L225 Difference]: With dead ends: 4961 [2024-11-28 03:04:08,891 INFO L226 Difference]: Without dead ends: 3287 [2024-11-28 03:04:08,895 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 03:04:08,895 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:08,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-11-28 03:04:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3285. [2024-11-28 03:04:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 3284 states have (on average 1.5066991473812423) internal successors, (4948), 3284 states have internal predecessors, (4948), 0 states have call successors, (0), 0 states 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 03:04:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4948 transitions. [2024-11-28 03:04:09,043 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4948 transitions. Word has length 93 [2024-11-28 03:04:09,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:09,044 INFO L471 AbstractCegarLoop]: Abstraction has 3285 states and 4948 transitions. [2024-11-28 03:04:09,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:09,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4948 transitions. [2024-11-28 03:04:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:09,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:09,045 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, 1, 1, 1, 1, 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 03:04:09,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:04:09,046 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:09,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:09,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2144329929, now seen corresponding path program 1 times [2024-11-28 03:04:09,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:09,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938035968] [2024-11-28 03:04:09,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:09,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:09,174 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 03:04:09,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:09,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938035968] [2024-11-28 03:04:09,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938035968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:09,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:09,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:09,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475670054] [2024-11-28 03:04:09,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:09,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:09,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:09,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:09,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:09,176 INFO L87 Difference]: Start difference. First operand 3285 states and 4948 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:09,352 INFO L93 Difference]: Finished difference Result 9465 states and 14262 transitions. [2024-11-28 03:04:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:09,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:09,378 INFO L225 Difference]: With dead ends: 9465 [2024-11-28 03:04:09,379 INFO L226 Difference]: Without dead ends: 6247 [2024-11-28 03:04:09,383 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 03:04:09,385 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 78 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:09,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2024-11-28 03:04:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6245. [2024-11-28 03:04:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6245 states, 6244 states have (on average 1.4919923126201153) internal successors, (9316), 6244 states have internal predecessors, (9316), 0 states have call successors, (0), 0 states 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 03:04:09,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6245 states to 6245 states and 9316 transitions. [2024-11-28 03:04:09,722 INFO L78 Accepts]: Start accepts. Automaton has 6245 states and 9316 transitions. Word has length 93 [2024-11-28 03:04:09,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:09,723 INFO L471 AbstractCegarLoop]: Abstraction has 6245 states and 9316 transitions. [2024-11-28 03:04:09,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:09,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6245 states and 9316 transitions. [2024-11-28 03:04:09,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:09,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:09,728 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, 1, 1, 1, 1, 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 03:04:09,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:04:09,729 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:09,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -363397065, now seen corresponding path program 1 times [2024-11-28 03:04:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:09,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624763290] [2024-11-28 03:04:09,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:09,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:09,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624763290] [2024-11-28 03:04:09,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624763290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:09,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:09,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988138225] [2024-11-28 03:04:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:09,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:09,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:09,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:09,897 INFO L87 Difference]: Start difference. First operand 6245 states and 9316 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:10,237 INFO L93 Difference]: Finished difference Result 18089 states and 26918 transitions. [2024-11-28 03:04:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:10,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:10,301 INFO L225 Difference]: With dead ends: 18089 [2024-11-28 03:04:10,302 INFO L226 Difference]: Without dead ends: 11911 [2024-11-28 03:04:10,309 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 03:04:10,310 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 76 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:10,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11911 states. [2024-11-28 03:04:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11911 to 11909. [2024-11-28 03:04:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11909 states, 11908 states have (on average 1.472959355055425) internal successors, (17540), 11908 states have internal predecessors, (17540), 0 states have call successors, (0), 0 states 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 03:04:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11909 states to 11909 states and 17540 transitions. [2024-11-28 03:04:10,922 INFO L78 Accepts]: Start accepts. Automaton has 11909 states and 17540 transitions. Word has length 93 [2024-11-28 03:04:10,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:10,923 INFO L471 AbstractCegarLoop]: Abstraction has 11909 states and 17540 transitions. [2024-11-28 03:04:10,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 11909 states and 17540 transitions. [2024-11-28 03:04:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:04:10,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:10,928 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, 1, 1, 1, 1, 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 03:04:10,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:04:10,928 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:10,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash 71138871, now seen corresponding path program 1 times [2024-11-28 03:04:10,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:10,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268151762] [2024-11-28 03:04:10,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:11,057 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 03:04:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268151762] [2024-11-28 03:04:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268151762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:11,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494951774] [2024-11-28 03:04:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:11,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:11,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:11,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:11,060 INFO L87 Difference]: Start difference. First operand 11909 states and 17540 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:11,716 INFO L93 Difference]: Finished difference Result 34569 states and 50694 transitions. [2024-11-28 03:04:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:11,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-28 03:04:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:11,792 INFO L225 Difference]: With dead ends: 34569 [2024-11-28 03:04:11,792 INFO L226 Difference]: Without dead ends: 22727 [2024-11-28 03:04:11,810 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 03:04:11,811 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:11,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 357 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22727 states. [2024-11-28 03:04:12,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22727 to 22725. [2024-11-28 03:04:12,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22725 states, 22724 states have (on average 1.4506248899841576) internal successors, (32964), 22724 states have internal predecessors, (32964), 0 states have call successors, (0), 0 states 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 03:04:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22725 states to 22725 states and 32964 transitions. [2024-11-28 03:04:12,941 INFO L78 Accepts]: Start accepts. Automaton has 22725 states and 32964 transitions. Word has length 93 [2024-11-28 03:04:12,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:12,941 INFO L471 AbstractCegarLoop]: Abstraction has 22725 states and 32964 transitions. [2024-11-28 03:04:12,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 03:04:12,942 INFO L276 IsEmpty]: Start isEmpty. Operand 22725 states and 32964 transitions. [2024-11-28 03:04:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:04:12,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:12,943 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, 1, 1, 1, 1, 1, 1, 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 03:04:12,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:04:12,943 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:12,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:12,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1748186322, now seen corresponding path program 1 times [2024-11-28 03:04:12,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:12,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935676077] [2024-11-28 03:04:12,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:12,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:04:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935676077] [2024-11-28 03:04:13,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935676077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:13,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:13,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:04:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350976690] [2024-11-28 03:04:13,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:13,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:04:13,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:13,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:04:13,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:04:13,070 INFO L87 Difference]: Start difference. First operand 22725 states and 32964 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 03:04:13,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:13,797 INFO L93 Difference]: Finished difference Result 46284 states and 67530 transitions. [2024-11-28 03:04:13,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:04:13,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-28 03:04:13,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:13,888 INFO L225 Difference]: With dead ends: 46284 [2024-11-28 03:04:13,888 INFO L226 Difference]: Without dead ends: 33737 [2024-11-28 03:04:13,907 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 03:04:13,908 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 87 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:13,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:04:13,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2024-11-28 03:04:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 33735. [2024-11-28 03:04:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33735 states, 33734 states have (on average 1.4439437955771626) internal successors, (48710), 33734 states have internal predecessors, (48710), 0 states have call successors, (0), 0 states 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 03:04:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33735 states to 33735 states and 48710 transitions. [2024-11-28 03:04:15,501 INFO L78 Accepts]: Start accepts. Automaton has 33735 states and 48710 transitions. Word has length 95 [2024-11-28 03:04:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:15,503 INFO L471 AbstractCegarLoop]: Abstraction has 33735 states and 48710 transitions. [2024-11-28 03:04:15,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 03:04:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 33735 states and 48710 transitions. [2024-11-28 03:04:15,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:04:15,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:15,514 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:04:15,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:04:15,514 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:15,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash -467827745, now seen corresponding path program 1 times [2024-11-28 03:04:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:15,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600044347] [2024-11-28 03:04:15,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:04:16,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600044347] [2024-11-28 03:04:16,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600044347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:16,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:16,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:04:16,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444938523] [2024-11-28 03:04:16,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:16,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:04:16,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:16,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:04:16,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:04:16,106 INFO L87 Difference]: Start difference. First operand 33735 states and 48710 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 03:04:20,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:20,792 INFO L93 Difference]: Finished difference Result 309849 states and 447311 transitions. [2024-11-28 03:04:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:04:20,793 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 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 118 [2024-11-28 03:04:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:21,779 INFO L225 Difference]: With dead ends: 309849 [2024-11-28 03:04:21,779 INFO L226 Difference]: Without dead ends: 276183 [2024-11-28 03:04:21,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:04:21,903 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 1681 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:21,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 2311 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:04:22,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276183 states. [2024-11-28 03:04:25,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276183 to 67399. [2024-11-28 03:04:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67399 states, 67398 states have (on average 1.4387073800409507) internal successors, (96966), 67398 states have internal predecessors, (96966), 0 states have call successors, (0), 0 states 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 03:04:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67399 states to 67399 states and 96966 transitions. [2024-11-28 03:04:26,095 INFO L78 Accepts]: Start accepts. Automaton has 67399 states and 96966 transitions. Word has length 118 [2024-11-28 03:04:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:26,095 INFO L471 AbstractCegarLoop]: Abstraction has 67399 states and 96966 transitions. [2024-11-28 03:04:26,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 03:04:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 67399 states and 96966 transitions. [2024-11-28 03:04:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:04:26,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:26,106 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:04:26,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:04:26,107 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:26,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1474241759, now seen corresponding path program 1 times [2024-11-28 03:04:26,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:26,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059706688] [2024-11-28 03:04:26,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:26,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:04:26,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:26,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059706688] [2024-11-28 03:04:26,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059706688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:26,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:26,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:04:26,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211221169] [2024-11-28 03:04:26,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:26,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:04:26,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:26,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:04:26,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:04:26,584 INFO L87 Difference]: Start difference. First operand 67399 states and 96966 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 03:04:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:33,424 INFO L93 Difference]: Finished difference Result 343513 states and 495567 transitions. [2024-11-28 03:04:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:04:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 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 118 [2024-11-28 03:04:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:33,872 INFO L225 Difference]: With dead ends: 343513 [2024-11-28 03:04:33,872 INFO L226 Difference]: Without dead ends: 309847 [2024-11-28 03:04:33,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:04:33,927 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 1706 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:33,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 2144 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:04:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309847 states. [2024-11-28 03:04:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309847 to 117959. [2024-11-28 03:04:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117959 states, 117958 states have (on average 1.4329676664575526) internal successors, (169030), 117958 states have internal predecessors, (169030), 0 states have call successors, (0), 0 states 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 03:04:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117959 states to 117959 states and 169030 transitions. [2024-11-28 03:04:38,994 INFO L78 Accepts]: Start accepts. Automaton has 117959 states and 169030 transitions. Word has length 118 [2024-11-28 03:04:38,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:38,994 INFO L471 AbstractCegarLoop]: Abstraction has 117959 states and 169030 transitions. [2024-11-28 03:04:38,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 03:04:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 117959 states and 169030 transitions. [2024-11-28 03:04:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:04:39,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:39,006 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:04:39,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:04:39,007 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:04:39,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1637156319, now seen corresponding path program 1 times [2024-11-28 03:04:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:39,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977222348] [2024-11-28 03:04:39,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:04:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:04:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:04:39,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:39,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977222348] [2024-11-28 03:04:39,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977222348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:04:39,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:04:39,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:04:39,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483975146] [2024-11-28 03:04:39,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:04:39,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:04:39,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:39,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:04:39,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:04:39,463 INFO L87 Difference]: Start difference. First operand 117959 states and 169030 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 03:04:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:47,449 INFO L93 Difference]: Finished difference Result 377177 states and 543823 transitions. [2024-11-28 03:04:47,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:04:47,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 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 118 [2024-11-28 03:04:47,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:47,882 INFO L225 Difference]: With dead ends: 377177 [2024-11-28 03:04:47,882 INFO L226 Difference]: Without dead ends: 343511 [2024-11-28 03:04:47,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:04:47,942 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 1747 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:47,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2041 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:04:48,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343511 states.