./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.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_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/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_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/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_4179293a-a979-46af-9bd0-06f4716e4096/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 c3ae342bfdc7bf76083bf4321cb5b6b26fe707bda9cd6edf475282aebbd1033a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:33:43,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:33:43,668 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:33:43,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:33:43,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:33:43,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:33:43,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:33:43,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:33:43,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:33:43,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:33:43,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:33:43,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:33:43,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:33:43,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:33:43,708 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:33:43,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:33:43,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:33:43,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:33:43,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:33:43,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:33:43,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:33:43,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:33:43,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:33:43,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:33:43,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:33:43,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:33:43,711 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:33:43,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:33:43,711 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:33:43,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:33:43,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:33:43,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:33:43,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:43,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:33:43,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:33:43,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:33:43,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:43,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:33:43,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:33:43,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:33:43,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:33:43,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:33:43,714 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_4179293a-a979-46af-9bd0-06f4716e4096/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 -> c3ae342bfdc7bf76083bf4321cb5b6b26fe707bda9cd6edf475282aebbd1033a [2024-11-27 20:33:44,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:33:44,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:33:44,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:33:44,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:33:44,070 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:33:44,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-27 20:33:47,543 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/data/3fa714fd4/394eecbff8244f798d81c32b2e51fc8e/FLAGa4bec2826 [2024-11-27 20:33:47,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:33:47,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-27 20:33:47,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/data/3fa714fd4/394eecbff8244f798d81c32b2e51fc8e/FLAGa4bec2826 [2024-11-27 20:33:48,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/data/3fa714fd4/394eecbff8244f798d81c32b2e51fc8e [2024-11-27 20:33:48,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:33:48,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:33:48,026 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:48,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:33:48,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:33:48,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ea965a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48, skipping insertion in model container [2024-11-27 20:33:48,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:33:48,415 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_4179293a-a979-46af-9bd0-06f4716e4096/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c[12764,12777] [2024-11-27 20:33:48,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:48,431 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:33:48,564 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_4179293a-a979-46af-9bd0-06f4716e4096/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c[12764,12777] [2024-11-27 20:33:48,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:33:48,594 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:33:48,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48 WrapperNode [2024-11-27 20:33:48,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:33:48,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:48,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:33:48,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:33:48,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,662 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-11-27 20:33:48,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:33:48,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:33:48,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:33:48,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:33:48,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,695 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]. [2024-11-27 20:33:48,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,705 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:33:48,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:33:48,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:33:48,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:33:48,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (1/1) ... [2024-11-27 20:33:48,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:33:48,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:48,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:33:48,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4179293a-a979-46af-9bd0-06f4716e4096/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:33:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:33:48,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:33:48,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:33:48,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:33:48,964 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:33:48,966 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:33:49,773 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-27 20:33:49,773 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:33:49,796 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:33:49,799 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:33:49,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:49 BoogieIcfgContainer [2024-11-27 20:33:49,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:33:49,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:33:49,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:33:49,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:33:49,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:33:48" (1/3) ... [2024-11-27 20:33:49,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5337d2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:49, skipping insertion in model container [2024-11-27 20:33:49,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:33:48" (2/3) ... [2024-11-27 20:33:49,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5337d2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:33:49, skipping insertion in model container [2024-11-27 20:33:49,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:33:49" (3/3) ... [2024-11-27 20:33:49,822 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-11-27 20:33:49,840 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:33:49,842 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c that has 1 procedures, 120 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:33:49,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:33:49,928 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;@6168e610, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:33:49,929 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:33:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 118 states have (on average 1.7796610169491525) internal successors, (210), 119 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:33:49,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:49,946 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] [2024-11-27 20:33:49,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:49,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash 186106102, now seen corresponding path program 1 times [2024-11-27 20:33:49,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:49,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497436231] [2024-11-27 20:33:49,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:50,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:50,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:50,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497436231] [2024-11-27 20:33:50,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497436231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:50,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:50,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:33:50,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302594046] [2024-11-27 20:33:50,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:50,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:33:50,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:50,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:33:50,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:33:50,518 INFO L87 Difference]: Start difference. First operand has 120 states, 118 states have (on average 1.7796610169491525) internal successors, (210), 119 states have internal predecessors, (210), 0 states have call successors, (0), 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:50,561 INFO L93 Difference]: Finished difference Result 184 states and 318 transitions. [2024-11-27 20:33:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:33:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-27 20:33:50,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:50,577 INFO L225 Difference]: With dead ends: 184 [2024-11-27 20:33:50,577 INFO L226 Difference]: Without dead ends: 116 [2024-11-27 20:33:50,581 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 [2024-11-27 20:33:50,585 INFO L435 NwaCegarLoop]: 207 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, 207 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 [2024-11-27 20:33:50,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:50,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-27 20:33:50,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-27 20:33:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.7652173913043478) internal successors, (203), 115 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 203 transitions. [2024-11-27 20:33:50,628 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 203 transitions. Word has length 38 [2024-11-27 20:33:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:50,628 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 203 transitions. [2024-11-27 20:33:50,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 203 transitions. [2024-11-27 20:33:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:33:50,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:50,630 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] [2024-11-27 20:33:50,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:33:50,631 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:50,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash 608807928, now seen corresponding path program 1 times [2024-11-27 20:33:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:50,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524073920] [2024-11-27 20:33:50,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:50,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:51,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524073920] [2024-11-27 20:33:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524073920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:51,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:51,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:33:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894075905] [2024-11-27 20:33:51,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:51,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:33:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:51,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:33:51,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:51,078 INFO L87 Difference]: Start difference. First operand 116 states and 203 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:51,208 INFO L93 Difference]: Finished difference Result 238 states and 409 transitions. [2024-11-27 20:33:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:33:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-11-27 20:33:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:51,211 INFO L225 Difference]: With dead ends: 238 [2024-11-27 20:33:51,211 INFO L226 Difference]: Without dead ends: 175 [2024-11-27 20:33:51,211 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 [2024-11-27 20:33:51,212 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 100 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:51,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 763 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-27 20:33:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 116. [2024-11-27 20:33:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5304347826086957) internal successors, (176), 115 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 176 transitions. [2024-11-27 20:33:51,224 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 176 transitions. Word has length 38 [2024-11-27 20:33:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:51,224 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 176 transitions. [2024-11-27 20:33:51,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 176 transitions. [2024-11-27 20:33:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:33:51,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:51,227 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] [2024-11-27 20:33:51,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:33:51,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:51,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash -948435249, now seen corresponding path program 1 times [2024-11-27 20:33:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:51,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011392486] [2024-11-27 20:33:51,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:51,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:51,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011392486] [2024-11-27 20:33:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011392486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:51,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:51,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:33:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434389305] [2024-11-27 20:33:51,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:51,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:33:51,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:51,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:33:51,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:33:51,516 INFO L87 Difference]: Start difference. First operand 116 states and 176 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:51,604 INFO L93 Difference]: Finished difference Result 225 states and 361 transitions. [2024-11-27 20:33:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:33:51,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-27 20:33:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:51,609 INFO L225 Difference]: With dead ends: 225 [2024-11-27 20:33:51,613 INFO L226 Difference]: Without dead ends: 166 [2024-11-27 20:33:51,614 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 [2024-11-27 20:33:51,615 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 75 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:51,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 375 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-27 20:33:51,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2024-11-27 20:33:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 1.5582822085889572) internal successors, (254), 163 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 254 transitions. [2024-11-27 20:33:51,637 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 254 transitions. Word has length 64 [2024-11-27 20:33:51,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:51,638 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 254 transitions. [2024-11-27 20:33:51,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 254 transitions. [2024-11-27 20:33:51,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 20:33:51,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:51,640 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] [2024-11-27 20:33:51,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:33:51,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:51,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:51,642 INFO L85 PathProgramCache]: Analyzing trace with hash -776693932, now seen corresponding path program 1 times [2024-11-27 20:33:51,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:51,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751578364] [2024-11-27 20:33:51,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:51,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:51,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:51,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751578364] [2024-11-27 20:33:51,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751578364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:51,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:51,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:33:51,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94960752] [2024-11-27 20:33:51,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:51,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:33:51,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:51,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:33:51,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:33:51,869 INFO L87 Difference]: Start difference. First operand 164 states and 254 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:51,910 INFO L93 Difference]: Finished difference Result 274 states and 440 transitions. [2024-11-27 20:33:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:33:51,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-27 20:33:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:51,915 INFO L225 Difference]: With dead ends: 274 [2024-11-27 20:33:51,916 INFO L226 Difference]: Without dead ends: 215 [2024-11-27 20:33:51,916 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 [2024-11-27 20:33:51,921 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 84 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:51,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 401 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-27 20:33:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2024-11-27 20:33:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.5849056603773586) internal successors, (336), 212 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 336 transitions. [2024-11-27 20:33:51,956 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 336 transitions. Word has length 66 [2024-11-27 20:33:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:51,957 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 336 transitions. [2024-11-27 20:33:51,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 336 transitions. [2024-11-27 20:33:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 20:33:51,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:51,962 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] [2024-11-27 20:33:51,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:33:51,963 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:51,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:51,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1527416535, now seen corresponding path program 1 times [2024-11-27 20:33:51,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:51,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647767091] [2024-11-27 20:33:51,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:51,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:52,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:52,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:52,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647767091] [2024-11-27 20:33:52,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647767091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:52,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:52,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:33:52,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115125258] [2024-11-27 20:33:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:52,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:33:52,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:52,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:33:52,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:33:52,278 INFO L87 Difference]: Start difference. First operand 213 states and 336 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:52,327 INFO L93 Difference]: Finished difference Result 498 states and 813 transitions. [2024-11-27 20:33:52,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:33:52,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-27 20:33:52,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:52,331 INFO L225 Difference]: With dead ends: 498 [2024-11-27 20:33:52,331 INFO L226 Difference]: Without dead ends: 345 [2024-11-27 20:33:52,332 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 [2024-11-27 20:33:52,333 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 77 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:52,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 388 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:52,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-27 20:33:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2024-11-27 20:33:52,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 342 states have (on average 1.6111111111111112) internal successors, (551), 342 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 551 transitions. [2024-11-27 20:33:52,361 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 551 transitions. Word has length 66 [2024-11-27 20:33:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:52,361 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 551 transitions. [2024-11-27 20:33:52,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 551 transitions. [2024-11-27 20:33:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 20:33:52,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:52,364 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] [2024-11-27 20:33:52,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:33:52,365 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:52,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:52,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1324722980, now seen corresponding path program 1 times [2024-11-27 20:33:52,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:52,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816735063] [2024-11-27 20:33:52,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:52,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:52,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:52,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816735063] [2024-11-27 20:33:52,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816735063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:52,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:52,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:33:52,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389205278] [2024-11-27 20:33:52,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:52,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:33:52,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:52,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:33:52,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:33:52,541 INFO L87 Difference]: Start difference. First operand 343 states and 551 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:52,607 INFO L93 Difference]: Finished difference Result 622 states and 1016 transitions. [2024-11-27 20:33:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:33:52,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-27 20:33:52,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:52,611 INFO L225 Difference]: With dead ends: 622 [2024-11-27 20:33:52,611 INFO L226 Difference]: Without dead ends: 469 [2024-11-27 20:33:52,613 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 [2024-11-27 20:33:52,618 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 78 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:52,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 393 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-27 20:33:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 467. [2024-11-27 20:33:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 1.6158798283261802) internal successors, (753), 466 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 753 transitions. [2024-11-27 20:33:52,675 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 753 transitions. Word has length 68 [2024-11-27 20:33:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:52,675 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 753 transitions. [2024-11-27 20:33:52,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 753 transitions. [2024-11-27 20:33:52,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 20:33:52,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:52,677 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] [2024-11-27 20:33:52,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:33:52,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:52,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash -328040993, now seen corresponding path program 1 times [2024-11-27 20:33:52,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:52,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545977241] [2024-11-27 20:33:52,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:52,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545977241] [2024-11-27 20:33:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545977241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:52,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:52,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:33:52,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206809386] [2024-11-27 20:33:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:52,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:33:52,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:52,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:33:52,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:33:52,951 INFO L87 Difference]: Start difference. First operand 467 states and 753 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:53,015 INFO L93 Difference]: Finished difference Result 1206 states and 1970 transitions. [2024-11-27 20:33:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:33:53,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-27 20:33:53,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:53,022 INFO L225 Difference]: With dead ends: 1206 [2024-11-27 20:33:53,023 INFO L226 Difference]: Without dead ends: 805 [2024-11-27 20:33:53,024 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 [2024-11-27 20:33:53,027 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 71 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:53,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 381 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-27 20:33:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 803. [2024-11-27 20:33:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 1.612219451371571) internal successors, (1293), 802 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1293 transitions. [2024-11-27 20:33:53,070 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1293 transitions. Word has length 68 [2024-11-27 20:33:53,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:53,070 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1293 transitions. [2024-11-27 20:33:53,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,071 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1293 transitions. [2024-11-27 20:33:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 20:33:53,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:53,072 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] [2024-11-27 20:33:53,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:33:53,073 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:53,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:53,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1076857188, now seen corresponding path program 1 times [2024-11-27 20:33:53,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:53,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906893940] [2024-11-27 20:33:53,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:53,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:53,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:53,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906893940] [2024-11-27 20:33:53,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906893940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:53,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:53,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:33:53,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429778924] [2024-11-27 20:33:53,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:53,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:33:53,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:53,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:33:53,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:33:53,232 INFO L87 Difference]: Start difference. First operand 803 states and 1293 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:53,298 INFO L93 Difference]: Finished difference Result 1512 states and 2456 transitions. [2024-11-27 20:33:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:33:53,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-27 20:33:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:53,305 INFO L225 Difference]: With dead ends: 1512 [2024-11-27 20:33:53,305 INFO L226 Difference]: Without dead ends: 1111 [2024-11-27 20:33:53,306 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 [2024-11-27 20:33:53,307 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 72 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:53,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 385 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:33:53,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-11-27 20:33:53,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1109. [2024-11-27 20:33:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1108 states have (on average 1.6046931407942238) internal successors, (1778), 1108 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1778 transitions. [2024-11-27 20:33:53,396 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1778 transitions. Word has length 70 [2024-11-27 20:33:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:53,396 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1778 transitions. [2024-11-27 20:33:53,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1778 transitions. [2024-11-27 20:33:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 20:33:53,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:53,399 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] [2024-11-27 20:33:53,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:33:53,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:53,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:53,400 INFO L85 PathProgramCache]: Analyzing trace with hash 381856743, now seen corresponding path program 1 times [2024-11-27 20:33:53,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:53,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120492108] [2024-11-27 20:33:53,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:53,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:53,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120492108] [2024-11-27 20:33:53,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120492108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:53,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:53,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:33:53,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932623992] [2024-11-27 20:33:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:53,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:33:53,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:53,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:33:53,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:53,717 INFO L87 Difference]: Start difference. First operand 1109 states and 1778 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:54,140 INFO L93 Difference]: Finished difference Result 5627 states and 9218 transitions. [2024-11-27 20:33:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:33:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-27 20:33:54,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:54,167 INFO L225 Difference]: With dead ends: 5627 [2024-11-27 20:33:54,167 INFO L226 Difference]: Without dead ends: 4590 [2024-11-27 20:33:54,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:33:54,174 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 588 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:54,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1096 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:33:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2024-11-27 20:33:54,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 2078. [2024-11-27 20:33:54,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2077 states have (on average 1.6013480982185846) internal successors, (3326), 2077 states have internal predecessors, (3326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 3326 transitions. [2024-11-27 20:33:54,315 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 3326 transitions. Word has length 70 [2024-11-27 20:33:54,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:54,316 INFO L471 AbstractCegarLoop]: Abstraction has 2078 states and 3326 transitions. [2024-11-27 20:33:54,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 3326 transitions. [2024-11-27 20:33:54,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-27 20:33:54,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:54,319 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] [2024-11-27 20:33:54,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:33:54,319 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:54,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:54,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1324791755, now seen corresponding path program 1 times [2024-11-27 20:33:54,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:54,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672209317] [2024-11-27 20:33:54,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:54,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:54,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672209317] [2024-11-27 20:33:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672209317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:54,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:54,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:33:54,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227882804] [2024-11-27 20:33:54,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:54,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:33:54,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:54,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:33:54,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:54,518 INFO L87 Difference]: Start difference. First operand 2078 states and 3326 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:54,763 INFO L93 Difference]: Finished difference Result 6782 states and 11006 transitions. [2024-11-27 20:33:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:33:54,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-27 20:33:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:54,786 INFO L225 Difference]: With dead ends: 6782 [2024-11-27 20:33:54,787 INFO L226 Difference]: Without dead ends: 4776 [2024-11-27 20:33:54,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:54,793 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 286 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:54,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 499 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:54,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2024-11-27 20:33:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 3408. [2024-11-27 20:33:54,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3408 states, 3407 states have (on average 1.603756970942178) internal successors, (5464), 3407 states have internal predecessors, (5464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:54,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 5464 transitions. [2024-11-27 20:33:54,975 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 5464 transitions. Word has length 71 [2024-11-27 20:33:54,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:54,976 INFO L471 AbstractCegarLoop]: Abstraction has 3408 states and 5464 transitions. [2024-11-27 20:33:54,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 5464 transitions. [2024-11-27 20:33:54,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 20:33:54,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:54,981 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] [2024-11-27 20:33:54,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:33:54,981 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:54,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:54,982 INFO L85 PathProgramCache]: Analyzing trace with hash 660010398, now seen corresponding path program 1 times [2024-11-27 20:33:54,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:54,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825332981] [2024-11-27 20:33:54,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:54,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:55,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:55,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825332981] [2024-11-27 20:33:55,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825332981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:55,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:55,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:33:55,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691436410] [2024-11-27 20:33:55,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:55,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:33:55,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:55,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:33:55,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:55,133 INFO L87 Difference]: Start difference. First operand 3408 states and 5464 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:55,458 INFO L93 Difference]: Finished difference Result 10958 states and 17658 transitions. [2024-11-27 20:33:55,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:33:55,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-27 20:33:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:55,490 INFO L225 Difference]: With dead ends: 10958 [2024-11-27 20:33:55,491 INFO L226 Difference]: Without dead ends: 7622 [2024-11-27 20:33:55,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:55,498 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 284 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:55,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 555 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7622 states. [2024-11-27 20:33:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7622 to 5486. [2024-11-27 20:33:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 1.593436645396536) internal successors, (8740), 5485 states have internal predecessors, (8740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 8740 transitions. [2024-11-27 20:33:55,774 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 8740 transitions. Word has length 72 [2024-11-27 20:33:55,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:55,775 INFO L471 AbstractCegarLoop]: Abstraction has 5486 states and 8740 transitions. [2024-11-27 20:33:55,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 8740 transitions. [2024-11-27 20:33:55,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-27 20:33:55,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:55,776 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] [2024-11-27 20:33:55,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:33:55,777 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:55,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:55,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1695629154, now seen corresponding path program 1 times [2024-11-27 20:33:55,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:55,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752616681] [2024-11-27 20:33:55,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:55,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:55,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:55,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:55,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752616681] [2024-11-27 20:33:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752616681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:55,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:55,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:33:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322740130] [2024-11-27 20:33:55,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:55,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:33:55,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:55,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:33:55,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:33:55,933 INFO L87 Difference]: Start difference. First operand 5486 states and 8740 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:56,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:56,395 INFO L93 Difference]: Finished difference Result 17318 states and 27702 transitions. [2024-11-27 20:33:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:33:56,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-27 20:33:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:56,442 INFO L225 Difference]: With dead ends: 17318 [2024-11-27 20:33:56,442 INFO L226 Difference]: Without dead ends: 11904 [2024-11-27 20:33:56,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:56,450 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 282 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:56,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 557 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11904 states. [2024-11-27 20:33:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11904 to 8652. [2024-11-27 20:33:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8652 states, 8651 states have (on average 1.5827072014795978) internal successors, (13692), 8651 states have internal predecessors, (13692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 13692 transitions. [2024-11-27 20:33:56,828 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 13692 transitions. Word has length 73 [2024-11-27 20:33:56,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:56,828 INFO L471 AbstractCegarLoop]: Abstraction has 8652 states and 13692 transitions. [2024-11-27 20:33:56,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:56,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 13692 transitions. [2024-11-27 20:33:56,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:33:56,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:56,830 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] [2024-11-27 20:33:56,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:33:56,830 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:56,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash -420511046, now seen corresponding path program 1 times [2024-11-27 20:33:56,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:56,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179593447] [2024-11-27 20:33:56,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:56,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:57,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:57,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179593447] [2024-11-27 20:33:57,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179593447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:57,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:57,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:33:57,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114342863] [2024-11-27 20:33:57,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:57,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:33:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:57,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:33:57,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:57,227 INFO L87 Difference]: Start difference. First operand 8652 states and 13692 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:57,647 INFO L93 Difference]: Finished difference Result 17234 states and 27291 transitions. [2024-11-27 20:33:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:33:57,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-27 20:33:57,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:57,686 INFO L225 Difference]: With dead ends: 17234 [2024-11-27 20:33:57,686 INFO L226 Difference]: Without dead ends: 8654 [2024-11-27 20:33:57,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:33:57,699 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 211 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:57,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 462 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:57,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2024-11-27 20:33:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 8652. [2024-11-27 20:33:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8652 states, 8651 states have (on average 1.5682580048549302) internal successors, (13567), 8651 states have internal predecessors, (13567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 13567 transitions. [2024-11-27 20:33:58,099 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 13567 transitions. Word has length 75 [2024-11-27 20:33:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:58,099 INFO L471 AbstractCegarLoop]: Abstraction has 8652 states and 13567 transitions. [2024-11-27 20:33:58,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 13567 transitions. [2024-11-27 20:33:58,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-27 20:33:58,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:58,101 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] [2024-11-27 20:33:58,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:33:58,101 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:58,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:58,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1617035231, now seen corresponding path program 1 times [2024-11-27 20:33:58,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:58,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129851157] [2024-11-27 20:33:58,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:58,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:33:58,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:58,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129851157] [2024-11-27 20:33:58,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129851157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:58,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:33:58,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:33:58,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830680875] [2024-11-27 20:33:58,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:58,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:33:58,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:58,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:33:58,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:33:58,424 INFO L87 Difference]: Start difference. First operand 8652 states and 13567 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:58,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:58,874 INFO L93 Difference]: Finished difference Result 24788 states and 39021 transitions. [2024-11-27 20:33:58,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:33:58,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-27 20:33:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:58,920 INFO L225 Difference]: With dead ends: 24788 [2024-11-27 20:33:58,920 INFO L226 Difference]: Without dead ends: 16208 [2024-11-27 20:33:58,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:33:58,934 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 69 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:58,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 620 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16208 states. [2024-11-27 20:33:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16208 to 16206. [2024-11-27 20:33:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16206 states, 16205 states have (on average 1.5524838012958964) internal successors, (25158), 16205 states have internal predecessors, (25158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16206 states to 16206 states and 25158 transitions. [2024-11-27 20:33:59,643 INFO L78 Accepts]: Start accepts. Automaton has 16206 states and 25158 transitions. Word has length 78 [2024-11-27 20:33:59,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:59,644 INFO L471 AbstractCegarLoop]: Abstraction has 16206 states and 25158 transitions. [2024-11-27 20:33:59,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:33:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 16206 states and 25158 transitions. [2024-11-27 20:33:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-27 20:33:59,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:59,645 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] [2024-11-27 20:33:59,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:33:59,645 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:33:59,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:59,646 INFO L85 PathProgramCache]: Analyzing trace with hash 982939683, now seen corresponding path program 1 times [2024-11-27 20:33:59,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:59,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432029826] [2024-11-27 20:33:59,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:59,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:00,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:00,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432029826] [2024-11-27 20:34:00,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432029826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:00,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:34:00,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568190514] [2024-11-27 20:34:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:00,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:00,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:00,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:00,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:00,064 INFO L87 Difference]: Start difference. First operand 16206 states and 25158 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:00,365 INFO L93 Difference]: Finished difference Result 17294 states and 26607 transitions. [2024-11-27 20:34:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:34:00,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-27 20:34:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:00,412 INFO L225 Difference]: With dead ends: 17294 [2024-11-27 20:34:00,413 INFO L226 Difference]: Without dead ends: 17292 [2024-11-27 20:34:00,419 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 [2024-11-27 20:34:00,419 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:00,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 678 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:00,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17292 states. [2024-11-27 20:34:01,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17292 to 17292. [2024-11-27 20:34:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17292 states, 17291 states have (on average 1.5172633161760454) internal successors, (26235), 17291 states have internal predecessors, (26235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:01,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17292 states to 17292 states and 26235 transitions. [2024-11-27 20:34:01,132 INFO L78 Accepts]: Start accepts. Automaton has 17292 states and 26235 transitions. Word has length 79 [2024-11-27 20:34:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:01,133 INFO L471 AbstractCegarLoop]: Abstraction has 17292 states and 26235 transitions. [2024-11-27 20:34:01,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 17292 states and 26235 transitions. [2024-11-27 20:34:01,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:34:01,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:01,137 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:01,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:34:01,138 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:01,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash 770649831, now seen corresponding path program 1 times [2024-11-27 20:34:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:01,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859713385] [2024-11-27 20:34:01,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:01,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:01,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:01,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859713385] [2024-11-27 20:34:01,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859713385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:01,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:01,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:01,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29123985] [2024-11-27 20:34:01,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:01,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:01,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:01,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:01,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:01,342 INFO L87 Difference]: Start difference. First operand 17292 states and 26235 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:02,152 INFO L93 Difference]: Finished difference Result 51614 states and 78234 transitions. [2024-11-27 20:34:02,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:02,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-27 20:34:02,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:02,263 INFO L225 Difference]: With dead ends: 51614 [2024-11-27 20:34:02,263 INFO L226 Difference]: Without dead ends: 34390 [2024-11-27 20:34:02,293 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 [2024-11-27 20:34:02,294 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 111 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:02,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 414 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34390 states. [2024-11-27 20:34:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34390 to 34388. [2024-11-27 20:34:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34388 states, 34387 states have (on average 1.5025154855032425) internal successors, (51667), 34387 states have internal predecessors, (51667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:03,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34388 states to 34388 states and 51667 transitions. [2024-11-27 20:34:03,383 INFO L78 Accepts]: Start accepts. Automaton has 34388 states and 51667 transitions. Word has length 105 [2024-11-27 20:34:03,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:03,383 INFO L471 AbstractCegarLoop]: Abstraction has 34388 states and 51667 transitions. [2024-11-27 20:34:03,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:03,384 INFO L276 IsEmpty]: Start isEmpty. Operand 34388 states and 51667 transitions. [2024-11-27 20:34:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:34:03,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:03,388 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:34:03,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:34:03,389 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:03,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1885130500, now seen corresponding path program 1 times [2024-11-27 20:34:03,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:03,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215215768] [2024-11-27 20:34:03,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:03,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:34:03,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:03,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215215768] [2024-11-27 20:34:03,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215215768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:03,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:03,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412013951] [2024-11-27 20:34:03,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:03,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:03,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:03,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:03,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:03,547 INFO L87 Difference]: Start difference. First operand 34388 states and 51667 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:04,816 INFO L93 Difference]: Finished difference Result 102686 states and 154133 transitions. [2024-11-27 20:34:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-27 20:34:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:05,016 INFO L225 Difference]: With dead ends: 102686 [2024-11-27 20:34:05,016 INFO L226 Difference]: Without dead ends: 68401 [2024-11-27 20:34:05,053 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 [2024-11-27 20:34:05,054 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 96 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:05,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 389 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68401 states. [2024-11-27 20:34:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68401 to 68399. [2024-11-27 20:34:07,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68399 states, 68398 states have (on average 1.4876312172870552) internal successors, (101751), 68398 states have internal predecessors, (101751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68399 states to 68399 states and 101751 transitions. [2024-11-27 20:34:07,247 INFO L78 Accepts]: Start accepts. Automaton has 68399 states and 101751 transitions. Word has length 105 [2024-11-27 20:34:07,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:07,248 INFO L471 AbstractCegarLoop]: Abstraction has 68399 states and 101751 transitions. [2024-11-27 20:34:07,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 68399 states and 101751 transitions. [2024-11-27 20:34:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:34:07,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:07,258 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:34:07,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:34:07,259 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:07,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1087609887, now seen corresponding path program 1 times [2024-11-27 20:34:07,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:07,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798809500] [2024-11-27 20:34:07,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:07,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:34:07,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:07,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798809500] [2024-11-27 20:34:07,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798809500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:07,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:07,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:07,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431932010] [2024-11-27 20:34:07,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:07,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:07,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:07,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:07,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:07,465 INFO L87 Difference]: Start difference. First operand 68399 states and 101751 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:09,910 INFO L93 Difference]: Finished difference Result 204307 states and 303632 transitions. [2024-11-27 20:34:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:09,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-27 20:34:09,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:10,197 INFO L225 Difference]: With dead ends: 204307 [2024-11-27 20:34:10,197 INFO L226 Difference]: Without dead ends: 136089 [2024-11-27 20:34:10,239 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 [2024-11-27 20:34:10,240 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:10,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 404 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:10,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136089 states. [2024-11-27 20:34:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136089 to 136087. [2024-11-27 20:34:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136087 states, 136086 states have (on average 1.4726569963111562) internal successors, (200408), 136086 states have internal predecessors, (200408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136087 states to 136087 states and 200408 transitions. [2024-11-27 20:34:14,050 INFO L78 Accepts]: Start accepts. Automaton has 136087 states and 200408 transitions. Word has length 105 [2024-11-27 20:34:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:14,052 INFO L471 AbstractCegarLoop]: Abstraction has 136087 states and 200408 transitions. [2024-11-27 20:34:14,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:14,053 INFO L276 IsEmpty]: Start isEmpty. Operand 136087 states and 200408 transitions. [2024-11-27 20:34:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:34:14,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:14,067 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:34:14,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:34:14,067 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:14,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -371748373, now seen corresponding path program 1 times [2024-11-27 20:34:14,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:14,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757561979] [2024-11-27 20:34:14,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:14,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757561979] [2024-11-27 20:34:14,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757561979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:14,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368517275] [2024-11-27 20:34:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:14,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:14,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:14,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:14,203 INFO L87 Difference]: Start difference. First operand 136087 states and 200408 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:19,146 INFO L93 Difference]: Finished difference Result 406447 states and 597967 transitions. [2024-11-27 20:34:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:19,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-27 20:34:19,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:19,644 INFO L225 Difference]: With dead ends: 406447 [2024-11-27 20:34:19,644 INFO L226 Difference]: Without dead ends: 270777 [2024-11-27 20:34:19,767 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 [2024-11-27 20:34:19,768 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 130 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:19,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 420 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270777 states. [2024-11-27 20:34:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270777 to 270775. [2024-11-27 20:34:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270775 states, 270774 states have (on average 1.4575734745581186) internal successors, (394673), 270774 states have internal predecessors, (394673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270775 states to 270775 states and 394673 transitions. [2024-11-27 20:34:27,059 INFO L78 Accepts]: Start accepts. Automaton has 270775 states and 394673 transitions. Word has length 105 [2024-11-27 20:34:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:27,059 INFO L471 AbstractCegarLoop]: Abstraction has 270775 states and 394673 transitions. [2024-11-27 20:34:27,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 270775 states and 394673 transitions. [2024-11-27 20:34:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:34:27,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:27,124 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:34:27,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:34:27,125 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:34:27,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:27,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1873831081, now seen corresponding path program 1 times [2024-11-27 20:34:27,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:27,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340298047] [2024-11-27 20:34:27,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:27,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:34:27,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:27,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340298047] [2024-11-27 20:34:27,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340298047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:27,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:27,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:27,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527386607] [2024-11-27 20:34:27,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:27,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:27,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:27,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:27,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:27,247 INFO L87 Difference]: Start difference. First operand 270775 states and 394673 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:34:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:33,370 INFO L93 Difference]: Finished difference Result 570995 states and 837411 transitions. [2024-11-27 20:34:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:33,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 105 [2024-11-27 20:34:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:34,066 INFO L225 Difference]: With dead ends: 570995 [2024-11-27 20:34:34,066 INFO L226 Difference]: Without dead ends: 437873 [2024-11-27 20:34:34,146 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 [2024-11-27 20:34:34,147 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:34,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 316 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437873 states.