./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i --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_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/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_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/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_080c7a78-8649-4c6e-8918-a99234afa02a/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 857eb6400730c27462335624c39a58effd99f93ee6f972a1d8a0651a358303ab --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:56:36,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:56:36,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:56:36,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:56:36,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:56:36,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:56:36,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:56:36,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:56:36,808 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:56:36,809 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:56:36,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:56:36,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:56:36,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:56:36,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:56:36,811 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:56:36,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:56:36,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:56:36,812 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:56:36,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:56:36,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:56:36,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:56:36,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:56:36,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:56:36,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:56:36,813 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:56:36,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:56:36,814 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:56:36,814 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:56:36,814 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:56:36,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:56:36,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:56:36,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:56:36,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:56:36,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:56:36,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:56:36,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:56:36,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:56:36,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:56:36,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:56:36,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:56:36,816 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:56:36,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:56:36,817 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_080c7a78-8649-4c6e-8918-a99234afa02a/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 -> 857eb6400730c27462335624c39a58effd99f93ee6f972a1d8a0651a358303ab [2024-11-27 19:56:37,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:56:37,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:56:37,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:56:37,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:56:37,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:56:37,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i [2024-11-27 19:56:40,584 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/data/cfeea52c7/5da390fc265d4670a2092c8b15638d62/FLAG650c1bb6d [2024-11-27 19:56:40,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:56:40,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i [2024-11-27 19:56:40,870 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/data/cfeea52c7/5da390fc265d4670a2092c8b15638d62/FLAG650c1bb6d [2024-11-27 19:56:41,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/data/cfeea52c7/5da390fc265d4670a2092c8b15638d62 [2024-11-27 19:56:41,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:56:41,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:56:41,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:56:41,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:56:41,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:56:41,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6840f3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41, skipping insertion in model container [2024-11-27 19:56:41,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:56:41,380 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_080c7a78-8649-4c6e-8918-a99234afa02a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i[913,926] [2024-11-27 19:56:41,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:56:41,470 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:56:41,484 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_080c7a78-8649-4c6e-8918-a99234afa02a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i[913,926] [2024-11-27 19:56:41,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:56:41,557 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:56:41,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41 WrapperNode [2024-11-27 19:56:41,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:56:41,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:56:41,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:56:41,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:56:41,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,648 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-11-27 19:56:41,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:56:41,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:56:41,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:56:41,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:56:41,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,679 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 19:56:41,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:56:41,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:56:41,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:56:41,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:56:41,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (1/1) ... [2024-11-27 19:56:41,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:56:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:41,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:56:41,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:56:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:56:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:56:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:56:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:56:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:56:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:56:41,875 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:56:41,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:56:42,306 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-27 19:56:42,306 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:56:42,320 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:56:42,321 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:56:42,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:56:42 BoogieIcfgContainer [2024-11-27 19:56:42,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:56:42,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:56:42,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:56:42,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:56:42,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:56:41" (1/3) ... [2024-11-27 19:56:42,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4647cbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:56:42, skipping insertion in model container [2024-11-27 19:56:42,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:56:41" (2/3) ... [2024-11-27 19:56:42,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4647cbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:56:42, skipping insertion in model container [2024-11-27 19:56:42,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:56:42" (3/3) ... [2024-11-27 19:56:42,332 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-89.i [2024-11-27 19:56:42,349 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:56:42,350 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-89.i that has 2 procedures, 63 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:56:42,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:56:42,423 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;@6af10698, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:56:42,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:56:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 19:56:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 19:56:42,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:42,443 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:42,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:42,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1313284559, now seen corresponding path program 1 times [2024-11-27 19:56:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:42,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235041838] [2024-11-27 19:56:42,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:42,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 19:56:42,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235041838] [2024-11-27 19:56:42,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235041838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:42,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074775265] [2024-11-27 19:56:42,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:42,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:42,746 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:42,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:56:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:42,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:56:42,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-27 19:56:42,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:56:42,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074775265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:42,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:56:42,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:56:42,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629301492] [2024-11-27 19:56:42,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:43,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:56:43,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:43,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:56:43,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:56:43,028 INFO L87 Difference]: Start difference. First operand has 63 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-27 19:56:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:43,066 INFO L93 Difference]: Finished difference Result 119 states and 195 transitions. [2024-11-27 19:56:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:56:43,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2024-11-27 19:56:43,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:43,076 INFO L225 Difference]: With dead ends: 119 [2024-11-27 19:56:43,076 INFO L226 Difference]: Without dead ends: 59 [2024-11-27 19:56:43,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 19:56:43,084 INFO L435 NwaCegarLoop]: 85 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, 85 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 19:56:43,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:56:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-27 19:56:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-27 19:56:43,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 19:56:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 85 transitions. [2024-11-27 19:56:43,145 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 85 transitions. Word has length 87 [2024-11-27 19:56:43,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:43,146 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 85 transitions. [2024-11-27 19:56:43,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-27 19:56:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2024-11-27 19:56:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 19:56:43,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:43,152 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:43,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:56:43,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:56:43,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:43,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1981552013, now seen corresponding path program 1 times [2024-11-27 19:56:43,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:43,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285684242] [2024-11-27 19:56:43,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:56:44,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:44,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285684242] [2024-11-27 19:56:44,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285684242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:44,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:44,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:56:44,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35494967] [2024-11-27 19:56:44,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:44,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:56:44,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:44,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:56:44,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:56:44,361 INFO L87 Difference]: Start difference. First operand 59 states and 85 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:44,729 INFO L93 Difference]: Finished difference Result 172 states and 250 transitions. [2024-11-27 19:56:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:56:44,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-27 19:56:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:44,740 INFO L225 Difference]: With dead ends: 172 [2024-11-27 19:56:44,740 INFO L226 Difference]: Without dead ends: 116 [2024-11-27 19:56:44,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:56:44,742 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:44,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 282 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:56:44,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-27 19:56:44,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 85. [2024-11-27 19:56:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 56 states have internal predecessors, (71), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 19:56:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-27 19:56:44,791 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 87 [2024-11-27 19:56:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:44,791 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-27 19:56:44,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-11-27 19:56:44,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 19:56:44,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:44,795 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:44,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:56:44,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:44,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:44,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1612350705, now seen corresponding path program 1 times [2024-11-27 19:56:44,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:44,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242875795] [2024-11-27 19:56:44,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:44,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:56:49,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:49,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242875795] [2024-11-27 19:56:49,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242875795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:49,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:49,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:56:49,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516730156] [2024-11-27 19:56:49,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:49,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:56:49,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:49,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:56:49,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:56:49,911 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:50,578 INFO L93 Difference]: Finished difference Result 170 states and 246 transitions. [2024-11-27 19:56:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:56:50,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-27 19:56:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:50,580 INFO L225 Difference]: With dead ends: 170 [2024-11-27 19:56:50,580 INFO L226 Difference]: Without dead ends: 114 [2024-11-27 19:56:50,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:56:50,582 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 185 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:50,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 155 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:56:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-27 19:56:50,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2024-11-27 19:56:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 67 states have internal predecessors, (88), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 19:56:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 140 transitions. [2024-11-27 19:56:50,600 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 140 transitions. Word has length 87 [2024-11-27 19:56:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:50,600 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 140 transitions. [2024-11-27 19:56:50,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2024-11-27 19:56:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 19:56:50,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:50,602 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:50,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:56:50,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:50,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash -932292335, now seen corresponding path program 1 times [2024-11-27 19:56:50,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:50,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243350949] [2024-11-27 19:56:50,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:56:53,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:53,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243350949] [2024-11-27 19:56:53,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243350949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:53,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:53,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:56:53,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844532160] [2024-11-27 19:56:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:53,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:56:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:53,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:56:53,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:56:53,432 INFO L87 Difference]: Start difference. First operand 96 states and 140 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:54,128 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-11-27 19:56:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:56:54,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-27 19:56:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:54,131 INFO L225 Difference]: With dead ends: 181 [2024-11-27 19:56:54,131 INFO L226 Difference]: Without dead ends: 114 [2024-11-27 19:56:54,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:56:54,132 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 123 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:54,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 173 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:56:54,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-27 19:56:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 85. [2024-11-27 19:56:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.25) internal successors, (70), 56 states have internal predecessors, (70), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 19:56:54,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-11-27 19:56:54,163 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 87 [2024-11-27 19:56:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:54,163 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-11-27 19:56:54,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-11-27 19:56:54,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-27 19:56:54,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:54,167 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:54,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:56:54,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:54,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1191211448, now seen corresponding path program 1 times [2024-11-27 19:56:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:54,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650822361] [2024-11-27 19:56:54,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-27 19:56:55,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:55,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650822361] [2024-11-27 19:56:55,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650822361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:55,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930115651] [2024-11-27 19:56:55,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:55,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:55,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:55,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:55,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:56:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:55,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 19:56:55,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-27 19:56:56,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:56:56,744 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:56:56,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930115651] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:56,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:56:56,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 11] total 25 [2024-11-27 19:56:56,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729918550] [2024-11-27 19:56:56,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:56,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:56:56,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:56,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:56:56,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-11-27 19:56:56,748 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:57,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:57,166 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2024-11-27 19:56:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:56:57,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2024-11-27 19:56:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:57,170 INFO L225 Difference]: With dead ends: 92 [2024-11-27 19:56:57,172 INFO L226 Difference]: Without dead ends: 90 [2024-11-27 19:56:57,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:56:57,174 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 76 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:57,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 381 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:56:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-27 19:56:57,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-11-27 19:56:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 60 states have internal predecessors, (74), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 19:56:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-11-27 19:56:57,199 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 89 [2024-11-27 19:56:57,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:57,200 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-11-27 19:56:57,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:57,200 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-11-27 19:56:57,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-27 19:56:57,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:57,204 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:57,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:56:57,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:57,405 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:57,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1611278920, now seen corresponding path program 1 times [2024-11-27 19:56:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:57,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819432684] [2024-11-27 19:56:57,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:56:57,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819432684] [2024-11-27 19:56:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819432684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:57,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:57,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:56:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353162008] [2024-11-27 19:56:57,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:57,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:56:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:57,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:56:57,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:56:57,618 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:57,743 INFO L93 Difference]: Finished difference Result 155 states and 218 transitions. [2024-11-27 19:56:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:56:57,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-27 19:56:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:57,747 INFO L225 Difference]: With dead ends: 155 [2024-11-27 19:56:57,749 INFO L226 Difference]: Without dead ends: 95 [2024-11-27 19:56:57,750 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 19:56:57,751 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:57,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 148 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:56:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-27 19:56:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2024-11-27 19:56:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 63 states have internal predecessors, (77), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 19:56:57,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-11-27 19:56:57,780 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 91 [2024-11-27 19:56:57,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:57,780 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-11-27 19:56:57,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:56:57,781 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-11-27 19:56:57,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 19:56:57,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:57,782 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:56:57,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:56:57,783 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:57,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:57,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1697688837, now seen corresponding path program 1 times [2024-11-27 19:56:57,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:57,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816798781] [2024-11-27 19:56:57,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:57,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-27 19:56:59,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:59,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816798781] [2024-11-27 19:56:59,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816798781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:59,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608988496] [2024-11-27 19:56:59,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:59,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:59,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:59,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:59,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:56:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:59,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 19:56:59,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-27 19:57:00,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:57:00,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608988496] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:00,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:57:00,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 12] total 28 [2024-11-27 19:57:00,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706135474] [2024-11-27 19:57:00,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:00,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:57:00,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:00,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:57:00,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2024-11-27 19:57:00,667 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:01,041 INFO L93 Difference]: Finished difference Result 100 states and 137 transitions. [2024-11-27 19:57:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:57:01,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-27 19:57:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:01,044 INFO L225 Difference]: With dead ends: 100 [2024-11-27 19:57:01,044 INFO L226 Difference]: Without dead ends: 98 [2024-11-27 19:57:01,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-11-27 19:57:01,046 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 74 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:01,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 386 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:57:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-27 19:57:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2024-11-27 19:57:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.21875) internal successors, (78), 64 states have internal predecessors, (78), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 19:57:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-11-27 19:57:01,073 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 92 [2024-11-27 19:57:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:01,073 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-27 19:57:01,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:01,074 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-11-27 19:57:01,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 19:57:01,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:01,077 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:57:01,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:57:01,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:01,282 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:01,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:01,282 INFO L85 PathProgramCache]: Analyzing trace with hash 336284300, now seen corresponding path program 1 times [2024-11-27 19:57:01,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:01,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848197343] [2024-11-27 19:57:01,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:01,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:57:01,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:01,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848197343] [2024-11-27 19:57:01,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848197343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:01,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:01,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:57:01,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041966950] [2024-11-27 19:57:01,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:01,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:01,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:01,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:01,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:01,366 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:01,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:01,421 INFO L93 Difference]: Finished difference Result 186 states and 255 transitions. [2024-11-27 19:57:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:01,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2024-11-27 19:57:01,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:01,423 INFO L225 Difference]: With dead ends: 186 [2024-11-27 19:57:01,423 INFO L226 Difference]: Without dead ends: 122 [2024-11-27 19:57:01,424 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 19:57:01,424 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 31 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:01,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:01,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-27 19:57:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-27 19:57:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 83 states have (on average 1.180722891566265) internal successors, (98), 84 states have internal predecessors, (98), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 19:57:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2024-11-27 19:57:01,446 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 94 [2024-11-27 19:57:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:01,446 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2024-11-27 19:57:01,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2024-11-27 19:57:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 19:57:01,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:01,448 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:57:01,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:57:01,448 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:01,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash -264431386, now seen corresponding path program 1 times [2024-11-27 19:57:01,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:01,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878434586] [2024-11-27 19:57:01,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:01,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:57:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878434586] [2024-11-27 19:57:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878434586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:01,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:01,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:01,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339634895] [2024-11-27 19:57:01,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:01,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:01,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:01,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:01,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:01,527 INFO L87 Difference]: Start difference. First operand 121 states and 164 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:01,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:01,750 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2024-11-27 19:57:01,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:01,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-27 19:57:01,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:01,754 INFO L225 Difference]: With dead ends: 363 [2024-11-27 19:57:01,754 INFO L226 Difference]: Without dead ends: 275 [2024-11-27 19:57:01,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:01,756 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 153 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:01,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 153 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:57:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-27 19:57:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2024-11-27 19:57:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 152 states have (on average 1.1710526315789473) internal successors, (178), 154 states have internal predecessors, (178), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-27 19:57:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 284 transitions. [2024-11-27 19:57:01,799 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 284 transitions. Word has length 95 [2024-11-27 19:57:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:01,799 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 284 transitions. [2024-11-27 19:57:01,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:01,800 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 284 transitions. [2024-11-27 19:57:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 19:57:01,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:01,802 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:57:01,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:57:01,802 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:01,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash -867068570, now seen corresponding path program 1 times [2024-11-27 19:57:01,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:01,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037527220] [2024-11-27 19:57:01,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:57:03,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:03,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037527220] [2024-11-27 19:57:03,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037527220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:03,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:57:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594922537] [2024-11-27 19:57:03,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:03,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:57:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:03,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:57:03,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:57:03,678 INFO L87 Difference]: Start difference. First operand 212 states and 284 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:05,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:05,940 INFO L93 Difference]: Finished difference Result 263 states and 336 transitions. [2024-11-27 19:57:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 19:57:05,940 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-27 19:57:05,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:05,943 INFO L225 Difference]: With dead ends: 263 [2024-11-27 19:57:05,943 INFO L226 Difference]: Without dead ends: 261 [2024-11-27 19:57:05,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 19:57:05,945 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 145 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:05,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 596 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 19:57:05,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-27 19:57:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 224. [2024-11-27 19:57:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 164 states have (on average 1.170731707317073) internal successors, (192), 166 states have internal predecessors, (192), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-27 19:57:05,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 298 transitions. [2024-11-27 19:57:05,980 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 298 transitions. Word has length 105 [2024-11-27 19:57:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:05,981 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 298 transitions. [2024-11-27 19:57:05,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 298 transitions. [2024-11-27 19:57:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 19:57:05,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:05,983 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:57:05,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:57:05,983 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:05,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:05,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1127076136, now seen corresponding path program 1 times [2024-11-27 19:57:05,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:05,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075303582] [2024-11-27 19:57:05,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:05,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 19:57:06,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:06,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075303582] [2024-11-27 19:57:06,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075303582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:06,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:06,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:06,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715461464] [2024-11-27 19:57:06,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:06,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:06,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:06,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:06,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:06,096 INFO L87 Difference]: Start difference. First operand 224 states and 298 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:06,223 INFO L93 Difference]: Finished difference Result 399 states and 533 transitions. [2024-11-27 19:57:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:06,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-27 19:57:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:06,226 INFO L225 Difference]: With dead ends: 399 [2024-11-27 19:57:06,226 INFO L226 Difference]: Without dead ends: 208 [2024-11-27 19:57:06,227 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 19:57:06,228 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:06,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 192 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:06,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-27 19:57:06,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-27 19:57:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 148 states have (on average 1.162162162162162) internal successors, (172), 150 states have internal predecessors, (172), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-27 19:57:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-11-27 19:57:06,261 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 105 [2024-11-27 19:57:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:06,262 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-11-27 19:57:06,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-11-27 19:57:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-27 19:57:06,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:06,265 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:06,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:57:06,265 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:06,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 821982124, now seen corresponding path program 1 times [2024-11-27 19:57:06,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:06,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988315854] [2024-11-27 19:57:06,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:06,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:10,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-11-27 19:57:10,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:10,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988315854] [2024-11-27 19:57:10,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988315854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:10,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:10,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 19:57:10,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298639544] [2024-11-27 19:57:10,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:10,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:57:10,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:10,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:57:10,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:57:10,384 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:11,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:11,838 INFO L93 Difference]: Finished difference Result 408 states and 542 transitions. [2024-11-27 19:57:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:57:11,838 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 181 [2024-11-27 19:57:11,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:11,841 INFO L225 Difference]: With dead ends: 408 [2024-11-27 19:57:11,841 INFO L226 Difference]: Without dead ends: 315 [2024-11-27 19:57:11,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:57:11,843 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:11,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 807 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:57:11,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-27 19:57:11,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 293. [2024-11-27 19:57:11,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 215 states have (on average 1.1813953488372093) internal successors, (254), 219 states have internal predecessors, (254), 69 states have call successors, (69), 8 states have call predecessors, (69), 8 states have return successors, (69), 65 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-27 19:57:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 392 transitions. [2024-11-27 19:57:11,898 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 392 transitions. Word has length 181 [2024-11-27 19:57:11,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:11,900 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 392 transitions. [2024-11-27 19:57:11,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 392 transitions. [2024-11-27 19:57:11,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 19:57:11,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:11,904 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:11,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:57:11,904 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:11,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash -181504122, now seen corresponding path program 1 times [2024-11-27 19:57:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:11,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568772662] [2024-11-27 19:57:11,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:11,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-27 19:57:12,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:12,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568772662] [2024-11-27 19:57:12,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568772662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:12,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:12,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:12,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438407255] [2024-11-27 19:57:12,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:12,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:12,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:12,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:12,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:12,161 INFO L87 Difference]: Start difference. First operand 293 states and 392 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:12,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:12,368 INFO L93 Difference]: Finished difference Result 654 states and 877 transitions. [2024-11-27 19:57:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:12,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 187 [2024-11-27 19:57:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:12,374 INFO L225 Difference]: With dead ends: 654 [2024-11-27 19:57:12,374 INFO L226 Difference]: Without dead ends: 476 [2024-11-27 19:57:12,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:57:12,378 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 145 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:12,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 223 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-27 19:57:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 408. [2024-11-27 19:57:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 290 states have (on average 1.1275862068965516) internal successors, (327), 297 states have internal predecessors, (327), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-27 19:57:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 537 transitions. [2024-11-27 19:57:12,485 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 537 transitions. Word has length 187 [2024-11-27 19:57:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:12,486 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 537 transitions. [2024-11-27 19:57:12,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 537 transitions. [2024-11-27 19:57:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-27 19:57:12,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:12,493 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:12,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:57:12,493 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:12,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1603055788, now seen corresponding path program 1 times [2024-11-27 19:57:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118329605] [2024-11-27 19:57:12,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:12,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-27 19:57:14,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:14,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118329605] [2024-11-27 19:57:14,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118329605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:14,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:14,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:57:14,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792563318] [2024-11-27 19:57:14,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:14,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:57:14,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:14,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:57:14,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:57:14,390 INFO L87 Difference]: Start difference. First operand 408 states and 537 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:15,363 INFO L93 Difference]: Finished difference Result 535 states and 668 transitions. [2024-11-27 19:57:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:57:15,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 191 [2024-11-27 19:57:15,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:15,371 INFO L225 Difference]: With dead ends: 535 [2024-11-27 19:57:15,371 INFO L226 Difference]: Without dead ends: 533 [2024-11-27 19:57:15,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2024-11-27 19:57:15,372 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 165 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:15,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 597 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:57:15,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-27 19:57:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 432. [2024-11-27 19:57:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 314 states have (on average 1.1305732484076434) internal successors, (355), 321 states have internal predecessors, (355), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-27 19:57:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 565 transitions. [2024-11-27 19:57:15,473 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 565 transitions. Word has length 191 [2024-11-27 19:57:15,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:15,474 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 565 transitions. [2024-11-27 19:57:15,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 565 transitions. [2024-11-27 19:57:15,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-27 19:57:15,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:15,477 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:15,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:57:15,478 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:15,479 INFO L85 PathProgramCache]: Analyzing trace with hash -697766802, now seen corresponding path program 1 times [2024-11-27 19:57:15,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:15,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234324996] [2024-11-27 19:57:15,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:15,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-27 19:57:15,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:15,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234324996] [2024-11-27 19:57:15,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234324996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:15,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:15,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:57:15,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133678576] [2024-11-27 19:57:15,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:15,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:57:15,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:15,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:57:15,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:15,780 INFO L87 Difference]: Start difference. First operand 432 states and 565 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:16,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:16,081 INFO L93 Difference]: Finished difference Result 796 states and 1043 transitions. [2024-11-27 19:57:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:16,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 191 [2024-11-27 19:57:16,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:16,085 INFO L225 Difference]: With dead ends: 796 [2024-11-27 19:57:16,085 INFO L226 Difference]: Without dead ends: 479 [2024-11-27 19:57:16,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:57:16,087 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 137 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:16,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 357 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:57:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-27 19:57:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 329. [2024-11-27 19:57:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 233 states have (on average 1.1158798283261802) internal successors, (260), 239 states have internal predecessors, (260), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 19:57:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 430 transitions. [2024-11-27 19:57:16,159 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 430 transitions. Word has length 191 [2024-11-27 19:57:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:16,160 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 430 transitions. [2024-11-27 19:57:16,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:16,160 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 430 transitions. [2024-11-27 19:57:16,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-27 19:57:16,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:16,165 INFO L218 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:16,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:57:16,165 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:16,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash 115108212, now seen corresponding path program 2 times [2024-11-27 19:57:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:16,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297310618] [2024-11-27 19:57:16,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:57:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:16,215 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 19:57:16,216 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:57:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3044 trivial. 0 not checked. [2024-11-27 19:57:17,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:17,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297310618] [2024-11-27 19:57:17,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297310618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:17,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:17,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 19:57:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024515016] [2024-11-27 19:57:17,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:17,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:57:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:17,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:57:17,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:57:17,713 INFO L87 Difference]: Start difference. First operand 329 states and 430 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:18,533 INFO L93 Difference]: Finished difference Result 373 states and 473 transitions. [2024-11-27 19:57:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:57:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 267 [2024-11-27 19:57:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:18,538 INFO L225 Difference]: With dead ends: 373 [2024-11-27 19:57:18,538 INFO L226 Difference]: Without dead ends: 371 [2024-11-27 19:57:18,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:57:18,540 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:18,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 506 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:57:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-27 19:57:18,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 325. [2024-11-27 19:57:18,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 229 states have (on average 1.1135371179039302) internal successors, (255), 235 states have internal predecessors, (255), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 19:57:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 425 transitions. [2024-11-27 19:57:18,617 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 425 transitions. Word has length 267 [2024-11-27 19:57:18,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:18,617 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 425 transitions. [2024-11-27 19:57:18,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 425 transitions. [2024-11-27 19:57:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-27 19:57:18,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:18,625 INFO L218 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:18,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 19:57:18,625 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:18,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:18,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1042737457, now seen corresponding path program 1 times [2024-11-27 19:57:18,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:18,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039252677] [2024-11-27 19:57:18,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:18,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2024-11-27 19:57:18,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:18,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039252677] [2024-11-27 19:57:18,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039252677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:18,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:18,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:57:18,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765577901] [2024-11-27 19:57:18,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:18,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:18,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:18,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:18,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:18,759 INFO L87 Difference]: Start difference. First operand 325 states and 425 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:18,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:18,947 INFO L93 Difference]: Finished difference Result 713 states and 940 transitions. [2024-11-27 19:57:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:18,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 272 [2024-11-27 19:57:18,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:18,951 INFO L225 Difference]: With dead ends: 713 [2024-11-27 19:57:18,952 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:57:18,954 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 19:57:18,955 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 55 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:18,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 189 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:57:18,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:57:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:57:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:57:18,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2024-11-27 19:57:18,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:18,960 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:57:18,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-27 19:57:18,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:57:18,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:57:18,963 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 19:57:18,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 19:57:18,968 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:18,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:57:41,866 WARN L286 SmtUtils]: Spent 22.38s on a formula simplification. DAG size of input: 268 DAG size of output: 308 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 19:57:47,571 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:57:47,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:57:47 BoogieIcfgContainer [2024-11-27 19:57:47,591 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:57:47,591 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:57:47,591 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:57:47,592 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:57:47,593 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:56:42" (3/4) ... [2024-11-27 19:57:47,595 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:57:47,601 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 19:57:47,611 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-27 19:57:47,611 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 19:57:47,611 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 19:57:47,612 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:57:47,722 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:57:47,723 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:57:47,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:57:47,724 INFO L158 Benchmark]: Toolchain (without parser) took 66574.75ms. Allocated memory was 117.4MB in the beginning and 595.6MB in the end (delta: 478.2MB). Free memory was 92.7MB in the beginning and 265.2MB in the end (delta: -172.5MB). Peak memory consumption was 301.2MB. Max. memory is 16.1GB. [2024-11-27 19:57:47,725 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:57:47,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.26ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.5MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:57:47,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.95ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:57:47,725 INFO L158 Benchmark]: Boogie Preprocessor took 51.80ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:57:47,726 INFO L158 Benchmark]: RCFGBuilder took 620.36ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 55.0MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:57:47,726 INFO L158 Benchmark]: TraceAbstraction took 65266.67ms. Allocated memory was 117.4MB in the beginning and 595.6MB in the end (delta: 478.2MB). Free memory was 54.4MB in the beginning and 269.3MB in the end (delta: -214.9MB). Peak memory consumption was 312.4MB. Max. memory is 16.1GB. [2024-11-27 19:57:47,727 INFO L158 Benchmark]: Witness Printer took 131.61ms. Allocated memory is still 595.6MB. Free memory was 269.3MB in the beginning and 265.2MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:57:47,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.26ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.5MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.95ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.80ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 620.36ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 55.0MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 65266.67ms. Allocated memory was 117.4MB in the beginning and 595.6MB in the end (delta: 478.2MB). Free memory was 54.4MB in the beginning and 269.3MB in the end (delta: -214.9MB). Peak memory consumption was 312.4MB. Max. memory is 16.1GB. * Witness Printer took 131.61ms. Allocated memory is still 595.6MB. Free memory was 269.3MB in the beginning and 265.2MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.6s, OverallIterations: 17, TraceHistogramMax: 39, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1582 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1582 mSDsluCounter, 5388 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3748 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3766 IncrementalHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 1640 mSDtfsCounter, 3766 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 648 GetRequests, 473 SyntacticMatches, 3 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=14, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 17 MinimizatonAttempts, 575 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 24.0s InterpolantComputationTime, 2576 NumberOfCodeBlocks, 2339 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2735 ConstructedInterpolants, 0 QuantifiedInterpolants, 12027 SizeOfPredicates, 12 NumberOfNonLiveVariables, 647 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 22 InterpolantComputations, 17 PerfectInterpolantSequences, 16263/16452 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: ((((((((var_1_8 != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((3 + var_1_10) < var_1_9) || (var_1_8 == ((252 + var_1_9) % 256))) && (((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)) <= 127))) && ((var_1_8 == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((((3 + var_1_10) < var_1_9) || ((256 + var_1_8) == ((252 + var_1_9) % 256))) && (128 <= ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) || ((256 + var_1_8) != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) && (((((var_1_9 <= (3 + var_1_10)) && ((256 + var_1_8) == ((252 + var_1_9) % 256))) || (((252 + var_1_9) % 256) < 128)) && ((127 < ((252 + var_1_9) % 256)) || ((var_1_8 == ((252 + var_1_9) % 256)) && (var_1_9 <= (3 + var_1_10))))) || ((256 + var_1_8) == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))))))) || (last_1_var_1_14 < (last_1_var_1_15 + 1))) && (var_1_13 == var_1_10)) && (var_1_8 == var_1_14)) && (var_1_15 == var_1_3)) || (((((((((((9 + last_1_var_1_14) <= last_1_var_1_15) && (0 <= 0)) && ((var_1_8 + 1) <= 0)) && (((var_1_14 / var_1_3) + 1) <= var_1_14)) && ((9 + var_1_14) <= var_1_15)) && ((var_1_7 == 0) || (var_1_5 == 0))) && (16 <= var_1_14)) && (var_1_15 <= 25)) && (var_1_1 == 0)) && (0 <= (((var_1_8 >= 0) ? (var_1_8 / 65536) : ((var_1_8 / 65536) - 1)) + 1)))) RESULT: Ultimate proved your program to be correct! [2024-11-27 19:57:47,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_080c7a78-8649-4c6e-8918-a99234afa02a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE