./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_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/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_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1 --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 [2024-12-02 11:47:41,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:47:41,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:47:41,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:47:41,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:47:41,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:47:41,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:47:41,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:47:41,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:47:41,834 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:47:41,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:47:41,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:47:41,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:47:41,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:47:41,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:47:41,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:47:41,836 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:47:41,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:47:41,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:47:41,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:47:41,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:47:41,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:47:41,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:47:41,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:47:41,838 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_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 11:47:42,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:47:42,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:47:42,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:47:42,073 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:47:42,073 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:47:42,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i [2024-12-02 11:47:44,740 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/data/d58da15fa/30a7a931c77b46218192012113bdafdf/FLAGc3e7ca94a [2024-12-02 11:47:44,928 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:47:44,929 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i [2024-12-02 11:47:44,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/data/d58da15fa/30a7a931c77b46218192012113bdafdf/FLAGc3e7ca94a [2024-12-02 11:47:44,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/data/d58da15fa/30a7a931c77b46218192012113bdafdf [2024-12-02 11:47:44,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:47:44,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:47:44,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:47:44,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:47:44,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:47:44,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:44" (1/1) ... [2024-12-02 11:47:44,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb03654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:44, skipping insertion in model container [2024-12-02 11:47:44,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:44" (1/1) ... [2024-12-02 11:47:44,986 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:47:45,114 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_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i[913,926] [2024-12-02 11:47:45,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:47:45,158 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:47:45,167 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_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i[913,926] [2024-12-02 11:47:45,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:47:45,200 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:47:45,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45 WrapperNode [2024-12-02 11:47:45,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:47:45,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:47:45,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:47:45,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:47:45,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,239 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-12-02 11:47:45,239 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:47:45,240 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:47:45,240 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:47:45,240 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:47:45,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,263 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]. [2024-12-02 11:47:45,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,268 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:47:45,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:47:45,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:47:45,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:47:45,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (1/1) ... [2024-12-02 11:47:45,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:47:45,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:45,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:47:45,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:47:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:47:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:47:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:47:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:47:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:47:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:47:45,395 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:47:45,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:47:45,644 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-02 11:47:45,644 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:47:45,652 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:47:45,652 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:47:45,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:45 BoogieIcfgContainer [2024-12-02 11:47:45,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:47:45,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:47:45,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:47:45,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:47:45,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:47:44" (1/3) ... [2024-12-02 11:47:45,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c1bf84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:47:45, skipping insertion in model container [2024-12-02 11:47:45,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:45" (2/3) ... [2024-12-02 11:47:45,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c1bf84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:47:45, skipping insertion in model container [2024-12-02 11:47:45,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:45" (3/3) ... [2024-12-02 11:47:45,662 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-89.i [2024-12-02 11:47:45,677 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:47:45,678 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. [2024-12-02 11:47:45,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:47:45,739 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;@1f289e53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:47:45,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:47:45,743 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) [2024-12-02 11:47:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 11:47:45,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:45,751 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] [2024-12-02 11:47:45,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:45,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:45,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1313284559, now seen corresponding path program 1 times [2024-12-02 11:47:45,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:45,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950864895] [2024-12-02 11:47:45,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:45,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:45,964 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:47:45,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:45,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950864895] [2024-12-02 11:47:45,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950864895] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:47:45,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657700414] [2024-12-02 11:47:45,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:45,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:45,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:47:45,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:47:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:46,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:47:46,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:47:46,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:47:46,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657700414] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:46,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:47:46,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:47:46,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905007333] [2024-12-02 11:47:46,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:46,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:47:46,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:46,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:47:46,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:47:46,122 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) [2024-12-02 11:47:46,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:46,144 INFO L93 Difference]: Finished difference Result 119 states and 195 transitions. [2024-12-02 11:47:46,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:47:46,146 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 [2024-12-02 11:47:46,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:46,152 INFO L225 Difference]: With dead ends: 119 [2024-12-02 11:47:46,153 INFO L226 Difference]: Without dead ends: 59 [2024-12-02 11:47:46,156 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 [2024-12-02 11:47:46,158 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 [2024-12-02 11:47:46,159 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] [2024-12-02 11:47:46,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-12-02 11:47:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-12-02 11:47:46,188 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) [2024-12-02 11:47:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 85 transitions. [2024-12-02 11:47:46,194 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 85 transitions. Word has length 87 [2024-12-02 11:47:46,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:46,194 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 85 transitions. [2024-12-02 11:47:46,195 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) [2024-12-02 11:47:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2024-12-02 11:47:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 11:47:46,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:46,197 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] [2024-12-02 11:47:46,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:47:46,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:47:46,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:46,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:46,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1981552013, now seen corresponding path program 1 times [2024-12-02 11:47:46,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:46,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21784076] [2024-12-02 11:47:46,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:46,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:46,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:46,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21784076] [2024-12-02 11:47:46,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21784076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:46,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:46,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:47:46,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409776665] [2024-12-02 11:47:46,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:46,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:47:46,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:46,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:47:46,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:47:46,889 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) [2024-12-02 11:47:47,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:47,107 INFO L93 Difference]: Finished difference Result 172 states and 250 transitions. [2024-12-02 11:47:47,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:47:47,108 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 [2024-12-02 11:47:47,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:47,110 INFO L225 Difference]: With dead ends: 172 [2024-12-02 11:47:47,110 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 11:47:47,110 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 [2024-12-02 11:47:47,111 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:47,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 282 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:47:47,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 11:47:47,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 85. [2024-12-02 11:47:47,130 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) [2024-12-02 11:47:47,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-12-02 11:47:47,132 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 87 [2024-12-02 11:47:47,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:47,132 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-12-02 11:47:47,132 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) [2024-12-02 11:47:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-12-02 11:47:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 11:47:47,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:47,134 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] [2024-12-02 11:47:47,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:47:47,135 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:47,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1612350705, now seen corresponding path program 1 times [2024-12-02 11:47:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:47,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496788615] [2024-12-02 11:47:47,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:50,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:50,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496788615] [2024-12-02 11:47:50,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496788615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:50,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:50,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:47:50,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354939884] [2024-12-02 11:47:50,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:50,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:47:50,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:50,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:47:50,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:47:50,005 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) [2024-12-02 11:47:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:50,517 INFO L93 Difference]: Finished difference Result 170 states and 246 transitions. [2024-12-02 11:47:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:47:50,517 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 [2024-12-02 11:47:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:50,519 INFO L225 Difference]: With dead ends: 170 [2024-12-02 11:47:50,519 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 11:47:50,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:47:50,520 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 185 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:50,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 155 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:47:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 11:47:50,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2024-12-02 11:47:50,535 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) [2024-12-02 11:47:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 140 transitions. [2024-12-02 11:47:50,537 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 140 transitions. Word has length 87 [2024-12-02 11:47:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:50,537 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 140 transitions. [2024-12-02 11:47:50,537 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) [2024-12-02 11:47:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2024-12-02 11:47:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 11:47:50,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:50,539 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] [2024-12-02 11:47:50,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:47:50,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:50,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash -932292335, now seen corresponding path program 1 times [2024-12-02 11:47:50,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:50,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063621484] [2024-12-02 11:47:50,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:52,555 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:52,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063621484] [2024-12-02 11:47:52,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063621484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:52,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:52,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:47:52,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878322268] [2024-12-02 11:47:52,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:52,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:47:52,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:52,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:47:52,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:47:52,557 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) [2024-12-02 11:47:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:52,971 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-12-02 11:47:52,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:47:52,972 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 [2024-12-02 11:47:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:52,973 INFO L225 Difference]: With dead ends: 181 [2024-12-02 11:47:52,973 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 11:47:52,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:47:52,974 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 123 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:52,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 173 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:47:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 11:47:52,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 85. [2024-12-02 11:47:52,987 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) [2024-12-02 11:47:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-12-02 11:47:52,988 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 87 [2024-12-02 11:47:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:52,989 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-12-02 11:47:52,989 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) [2024-12-02 11:47:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-12-02 11:47:52,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 11:47:52,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:52,990 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] [2024-12-02 11:47:52,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:47:52,990 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:52,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:52,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1191211448, now seen corresponding path program 1 times [2024-12-02 11:47:52,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:52,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553892664] [2024-12-02 11:47:52,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:52,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 11:47:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553892664] [2024-12-02 11:47:53,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553892664] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:47:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692769590] [2024-12-02 11:47:53,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:53,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:53,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:53,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:47:53,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:47:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:53,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:47:53,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-12-02 11:47:54,318 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:47:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:54,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692769590] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:47:54,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:47:54,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 11] total 25 [2024-12-02 11:47:54,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577980681] [2024-12-02 11:47:54,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:54,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:47:54,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:54,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:47:54,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:47:54,599 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) [2024-12-02 11:47:54,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:54,843 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2024-12-02 11:47:54,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:47:54,844 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 [2024-12-02 11:47:54,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:54,845 INFO L225 Difference]: With dead ends: 92 [2024-12-02 11:47:54,845 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 11:47:54,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:47:54,846 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 76 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:54,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 381 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:47:54,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 11:47:54,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-12-02 11:47:54,859 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) [2024-12-02 11:47:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-12-02 11:47:54,860 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 89 [2024-12-02 11:47:54,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:54,861 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-12-02 11:47:54,861 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) [2024-12-02 11:47:54,861 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-12-02 11:47:54,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 11:47:54,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:54,863 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] [2024-12-02 11:47:54,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 11:47:55,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:55,063 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:55,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:55,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1611278920, now seen corresponding path program 1 times [2024-12-02 11:47:55,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:55,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132134424] [2024-12-02 11:47:55,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:55,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:55,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:55,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132134424] [2024-12-02 11:47:55,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132134424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:55,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:55,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:47:55,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596487794] [2024-12-02 11:47:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:55,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:47:55,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:55,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:47:55,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:47:55,174 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) [2024-12-02 11:47:55,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:55,240 INFO L93 Difference]: Finished difference Result 155 states and 218 transitions. [2024-12-02 11:47:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:47:55,241 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 [2024-12-02 11:47:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:55,242 INFO L225 Difference]: With dead ends: 155 [2024-12-02 11:47:55,242 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 11:47:55,242 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 [2024-12-02 11:47:55,243 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-12-02 11:47:55,243 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] [2024-12-02 11:47:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 11:47:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2024-12-02 11:47:55,253 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) [2024-12-02 11:47:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-12-02 11:47:55,254 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 91 [2024-12-02 11:47:55,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:55,254 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-12-02 11:47:55,255 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) [2024-12-02 11:47:55,255 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-12-02 11:47:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 11:47:55,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:55,256 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] [2024-12-02 11:47:55,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:47:55,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:55,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1697688837, now seen corresponding path program 1 times [2024-12-02 11:47:55,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:55,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612216237] [2024-12-02 11:47:55,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:55,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 11:47:55,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612216237] [2024-12-02 11:47:55,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612216237] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:47:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293144738] [2024-12-02 11:47:55,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:55,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:55,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:47:55,920 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:47:55,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:47:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:55,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 11:47:56,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-12-02 11:47:56,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:47:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:56,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293144738] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:47:56,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:47:56,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 12] total 28 [2024-12-02 11:47:56,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516325167] [2024-12-02 11:47:56,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:56,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:47:56,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:56,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:47:56,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:47:56,901 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) [2024-12-02 11:47:57,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:57,144 INFO L93 Difference]: Finished difference Result 100 states and 137 transitions. [2024-12-02 11:47:57,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:47:57,145 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 [2024-12-02 11:47:57,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:57,146 INFO L225 Difference]: With dead ends: 100 [2024-12-02 11:47:57,146 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 11:47:57,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-12-02 11:47:57,147 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, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:57,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 386 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:47:57,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 11:47:57,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2024-12-02 11:47:57,163 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) [2024-12-02 11:47:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-12-02 11:47:57,164 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 92 [2024-12-02 11:47:57,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:57,164 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-12-02 11:47:57,165 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) [2024-12-02 11:47:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-12-02 11:47:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 11:47:57,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:57,166 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] [2024-12-02 11:47:57,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 11:47:57,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:57,366 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:57,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:57,367 INFO L85 PathProgramCache]: Analyzing trace with hash 336284300, now seen corresponding path program 1 times [2024-12-02 11:47:57,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:57,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229359174] [2024-12-02 11:47:57,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:57,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:57,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229359174] [2024-12-02 11:47:57,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229359174] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:57,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:57,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:47:57,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976041932] [2024-12-02 11:47:57,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:57,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:47:57,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:57,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:47:57,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:47:57,440 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) [2024-12-02 11:47:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:57,485 INFO L93 Difference]: Finished difference Result 186 states and 255 transitions. [2024-12-02 11:47:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:47:57,485 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 [2024-12-02 11:47:57,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:57,487 INFO L225 Difference]: With dead ends: 186 [2024-12-02 11:47:57,487 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 11:47:57,487 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 [2024-12-02 11:47:57,488 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 [2024-12-02 11:47:57,488 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] [2024-12-02 11:47:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 11:47:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-12-02 11:47:57,509 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) [2024-12-02 11:47:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2024-12-02 11:47:57,511 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 94 [2024-12-02 11:47:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:57,511 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2024-12-02 11:47:57,511 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) [2024-12-02 11:47:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2024-12-02 11:47:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 11:47:57,513 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:57,513 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] [2024-12-02 11:47:57,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:47:57,513 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:57,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:57,513 INFO L85 PathProgramCache]: Analyzing trace with hash -264431386, now seen corresponding path program 1 times [2024-12-02 11:47:57,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:57,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779124114] [2024-12-02 11:47:57,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:57,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:57,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:57,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779124114] [2024-12-02 11:47:57,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779124114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:57,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:57,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:47:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841215372] [2024-12-02 11:47:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:57,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:47:57,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:57,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:47:57,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:47:57,576 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) [2024-12-02 11:47:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:57,718 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2024-12-02 11:47:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:47:57,719 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 [2024-12-02 11:47:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:57,722 INFO L225 Difference]: With dead ends: 363 [2024-12-02 11:47:57,722 INFO L226 Difference]: Without dead ends: 275 [2024-12-02 11:47:57,722 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 [2024-12-02 11:47:57,723 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, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:57,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 153 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:47:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-12-02 11:47:57,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2024-12-02 11:47:57,747 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) [2024-12-02 11:47:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 284 transitions. [2024-12-02 11:47:57,749 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 284 transitions. Word has length 95 [2024-12-02 11:47:57,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:57,750 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 284 transitions. [2024-12-02 11:47:57,750 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) [2024-12-02 11:47:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 284 transitions. [2024-12-02 11:47:57,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 11:47:57,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:57,751 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] [2024-12-02 11:47:57,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:47:57,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:57,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash -867068570, now seen corresponding path program 1 times [2024-12-02 11:47:57,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:57,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316997085] [2024-12-02 11:47:57,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:47:59,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:59,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316997085] [2024-12-02 11:47:59,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316997085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:59,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:59,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:47:59,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970865529] [2024-12-02 11:47:59,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:59,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:47:59,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:59,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:47:59,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:47:59,075 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) [2024-12-02 11:48:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:00,376 INFO L93 Difference]: Finished difference Result 263 states and 336 transitions. [2024-12-02 11:48:00,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 11:48:00,377 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 [2024-12-02 11:48:00,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:00,378 INFO L225 Difference]: With dead ends: 263 [2024-12-02 11:48:00,378 INFO L226 Difference]: Without dead ends: 261 [2024-12-02 11:48:00,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:48:00,379 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 145 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:00,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 596 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:48:00,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-12-02 11:48:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 224. [2024-12-02 11:48:00,412 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) [2024-12-02 11:48:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 298 transitions. [2024-12-02 11:48:00,414 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 298 transitions. Word has length 105 [2024-12-02 11:48:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:00,414 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 298 transitions. [2024-12-02 11:48:00,414 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) [2024-12-02 11:48:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 298 transitions. [2024-12-02 11:48:00,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 11:48:00,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:00,415 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] [2024-12-02 11:48:00,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:48:00,416 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:00,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1127076136, now seen corresponding path program 1 times [2024-12-02 11:48:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:00,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757695504] [2024-12-02 11:48:00,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:00,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:48:00,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:00,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757695504] [2024-12-02 11:48:00,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757695504] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:00,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:00,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:48:00,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760127493] [2024-12-02 11:48:00,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:00,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:48:00,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:00,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:48:00,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:48:00,499 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) [2024-12-02 11:48:00,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:00,586 INFO L93 Difference]: Finished difference Result 399 states and 533 transitions. [2024-12-02 11:48:00,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:48:00,587 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 [2024-12-02 11:48:00,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:00,588 INFO L225 Difference]: With dead ends: 399 [2024-12-02 11:48:00,589 INFO L226 Difference]: Without dead ends: 208 [2024-12-02 11:48:00,589 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 [2024-12-02 11:48:00,590 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-12-02 11:48:00,590 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] [2024-12-02 11:48:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-12-02 11:48:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-12-02 11:48:00,613 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) [2024-12-02 11:48:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-12-02 11:48:00,615 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 105 [2024-12-02 11:48:00,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:00,615 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-12-02 11:48:00,615 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) [2024-12-02 11:48:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-12-02 11:48:00,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 11:48:00,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:00,617 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] [2024-12-02 11:48:00,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:48:00,618 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:00,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:00,618 INFO L85 PathProgramCache]: Analyzing trace with hash 821982124, now seen corresponding path program 1 times [2024-12-02 11:48:00,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:00,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748241172] [2024-12-02 11:48:00,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:00,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-12-02 11:48:03,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:03,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748241172] [2024-12-02 11:48:03,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748241172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:03,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:03,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:48:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069409945] [2024-12-02 11:48:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:03,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:48:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:03,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:48:03,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:48:03,127 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) [2024-12-02 11:48:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:04,106 INFO L93 Difference]: Finished difference Result 408 states and 542 transitions. [2024-12-02 11:48:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:48:04,106 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 [2024-12-02 11:48:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:04,108 INFO L225 Difference]: With dead ends: 408 [2024-12-02 11:48:04,108 INFO L226 Difference]: Without dead ends: 315 [2024-12-02 11:48:04,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:48:04,109 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:04,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 807 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:48:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-12-02 11:48:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 293. [2024-12-02 11:48:04,134 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) [2024-12-02 11:48:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 392 transitions. [2024-12-02 11:48:04,135 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 392 transitions. Word has length 181 [2024-12-02 11:48:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:04,136 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 392 transitions. [2024-12-02 11:48:04,136 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) [2024-12-02 11:48:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 392 transitions. [2024-12-02 11:48:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 11:48:04,138 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:04,138 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] [2024-12-02 11:48:04,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:48:04,138 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:04,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:04,139 INFO L85 PathProgramCache]: Analyzing trace with hash -181504122, now seen corresponding path program 1 times [2024-12-02 11:48:04,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:04,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106566483] [2024-12-02 11:48:04,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-12-02 11:48:04,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:04,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106566483] [2024-12-02 11:48:04,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106566483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:04,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:04,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:48:04,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864002554] [2024-12-02 11:48:04,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:04,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:48:04,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:04,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:48:04,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:48:04,275 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) [2024-12-02 11:48:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:04,427 INFO L93 Difference]: Finished difference Result 654 states and 877 transitions. [2024-12-02 11:48:04,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:48:04,428 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 [2024-12-02 11:48:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:04,431 INFO L225 Difference]: With dead ends: 654 [2024-12-02 11:48:04,431 INFO L226 Difference]: Without dead ends: 476 [2024-12-02 11:48:04,432 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 [2024-12-02 11:48:04,432 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 [2024-12-02 11:48:04,432 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] [2024-12-02 11:48:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-12-02 11:48:04,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 408. [2024-12-02 11:48:04,501 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) [2024-12-02 11:48:04,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 537 transitions. [2024-12-02 11:48:04,504 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 537 transitions. Word has length 187 [2024-12-02 11:48:04,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:04,505 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 537 transitions. [2024-12-02 11:48:04,505 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) [2024-12-02 11:48:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 537 transitions. [2024-12-02 11:48:04,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 11:48:04,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:04,507 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] [2024-12-02 11:48:04,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:48:04,507 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:04,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:04,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1603055788, now seen corresponding path program 1 times [2024-12-02 11:48:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434327720] [2024-12-02 11:48:04,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-12-02 11:48:05,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:05,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434327720] [2024-12-02 11:48:05,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434327720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:05,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:05,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:48:05,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514336095] [2024-12-02 11:48:05,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:05,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:48:05,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:05,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:48:05,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:48:05,783 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) [2024-12-02 11:48:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:06,449 INFO L93 Difference]: Finished difference Result 535 states and 668 transitions. [2024-12-02 11:48:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 11:48:06,450 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 [2024-12-02 11:48:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:06,453 INFO L225 Difference]: With dead ends: 535 [2024-12-02 11:48:06,453 INFO L226 Difference]: Without dead ends: 533 [2024-12-02 11:48:06,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:48:06,454 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 165 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:06,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 597 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:48:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-12-02 11:48:06,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 432. [2024-12-02 11:48:06,509 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) [2024-12-02 11:48:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 565 transitions. [2024-12-02 11:48:06,511 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 565 transitions. Word has length 191 [2024-12-02 11:48:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:06,511 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 565 transitions. [2024-12-02 11:48:06,511 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) [2024-12-02 11:48:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 565 transitions. [2024-12-02 11:48:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 11:48:06,513 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:06,513 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] [2024-12-02 11:48:06,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:48:06,513 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:06,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash -697766802, now seen corresponding path program 1 times [2024-12-02 11:48:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:06,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062248429] [2024-12-02 11:48:06,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:06,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-12-02 11:48:06,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:06,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062248429] [2024-12-02 11:48:06,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062248429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:06,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:06,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:48:06,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944574615] [2024-12-02 11:48:06,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:06,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:48:06,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:06,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:48:06,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:48:06,661 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) [2024-12-02 11:48:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:06,844 INFO L93 Difference]: Finished difference Result 796 states and 1043 transitions. [2024-12-02 11:48:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:48:06,845 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 [2024-12-02 11:48:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:06,847 INFO L225 Difference]: With dead ends: 796 [2024-12-02 11:48:06,847 INFO L226 Difference]: Without dead ends: 479 [2024-12-02 11:48:06,848 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 [2024-12-02 11:48:06,849 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 137 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:06,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 357 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:48:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-12-02 11:48:06,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 329. [2024-12-02 11:48:06,906 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) [2024-12-02 11:48:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 430 transitions. [2024-12-02 11:48:06,909 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 430 transitions. Word has length 191 [2024-12-02 11:48:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:06,909 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 430 transitions. [2024-12-02 11:48:06,910 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) [2024-12-02 11:48:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 430 transitions. [2024-12-02 11:48:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-12-02 11:48:06,912 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:06,912 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] [2024-12-02 11:48:06,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:48:06,912 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:06,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 115108212, now seen corresponding path program 2 times [2024-12-02 11:48:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:06,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15366905] [2024-12-02 11:48:06,913 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 11:48:06,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:06,939 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 11:48:06,939 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:48:07,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3044 trivial. 0 not checked. [2024-12-02 11:48:07,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:07,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15366905] [2024-12-02 11:48:07,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15366905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:07,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:07,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:48:07,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414616144] [2024-12-02 11:48:07,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:07,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:48:07,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:07,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:48:07,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:48:07,873 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) [2024-12-02 11:48:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:08,471 INFO L93 Difference]: Finished difference Result 373 states and 473 transitions. [2024-12-02 11:48:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:48:08,472 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 [2024-12-02 11:48:08,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:08,473 INFO L225 Difference]: With dead ends: 373 [2024-12-02 11:48:08,473 INFO L226 Difference]: Without dead ends: 371 [2024-12-02 11:48:08,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:48:08,474 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:08,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 506 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:48:08,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-12-02 11:48:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 325. [2024-12-02 11:48:08,519 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) [2024-12-02 11:48:08,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 425 transitions. [2024-12-02 11:48:08,520 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 425 transitions. Word has length 267 [2024-12-02 11:48:08,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:08,521 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 425 transitions. [2024-12-02 11:48:08,521 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) [2024-12-02 11:48:08,521 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 425 transitions. [2024-12-02 11:48:08,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-12-02 11:48:08,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:08,523 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] [2024-12-02 11:48:08,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:48:08,523 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:08,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:08,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1042737457, now seen corresponding path program 1 times [2024-12-02 11:48:08,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:08,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640451384] [2024-12-02 11:48:08,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:08,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2024-12-02 11:48:08,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:08,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640451384] [2024-12-02 11:48:08,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640451384] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:48:08,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:48:08,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:48:08,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372360318] [2024-12-02 11:48:08,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:48:08,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:48:08,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:08,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:48:08,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:48:08,587 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) [2024-12-02 11:48:08,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:08,676 INFO L93 Difference]: Finished difference Result 713 states and 940 transitions. [2024-12-02 11:48:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:48:08,676 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 [2024-12-02 11:48:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:08,677 INFO L225 Difference]: With dead ends: 713 [2024-12-02 11:48:08,677 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 11:48:08,679 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 [2024-12-02 11:48:08,679 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, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:08,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 189 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:48:08,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 11:48:08,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 11:48:08,679 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) [2024-12-02 11:48:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 11:48:08,680 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2024-12-02 11:48:08,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:08,680 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:48:08,680 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) [2024-12-02 11:48:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:48:08,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 11:48:08,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:48:08,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:48:08,685 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:48:08,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 11:48:30,483 WARN L286 SmtUtils]: Spent 21.55s 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) [2024-12-02 11:48:35,419 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:48:35,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:48:35 BoogieIcfgContainer [2024-12-02 11:48:35,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:48:35,433 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:48:35,433 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:48:35,433 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:48:35,434 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:45" (3/4) ... [2024-12-02 11:48:35,436 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 11:48:35,441 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 11:48:35,444 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 11:48:35,444 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 11:48:35,444 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 11:48:35,445 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 11:48:35,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:48:35,525 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:48:35,525 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:48:35,525 INFO L158 Benchmark]: Toolchain (without parser) took 50562.11ms. Allocated memory was 142.6MB in the beginning and 587.2MB in the end (delta: 444.6MB). Free memory was 119.0MB in the beginning and 327.9MB in the end (delta: -209.0MB). Peak memory consumption was 233.3MB. Max. memory is 16.1GB. [2024-12-02 11:48:35,526 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:48:35,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.19ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 106.1MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:48:35,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.15ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 103.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:48:35,526 INFO L158 Benchmark]: Boogie Preprocessor took 36.82ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 100.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:48:35,526 INFO L158 Benchmark]: RCFGBuilder took 375.59ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 81.5MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:48:35,527 INFO L158 Benchmark]: TraceAbstraction took 49777.43ms. Allocated memory was 142.6MB in the beginning and 587.2MB in the end (delta: 444.6MB). Free memory was 81.0MB in the beginning and 336.1MB in the end (delta: -255.1MB). Peak memory consumption was 320.1MB. Max. memory is 16.1GB. [2024-12-02 11:48:35,527 INFO L158 Benchmark]: Witness Printer took 91.43ms. Allocated memory is still 587.2MB. Free memory was 336.1MB in the beginning and 327.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:48:35,529 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.19ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 106.1MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.15ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 103.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.82ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 100.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.59ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 81.5MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 49777.43ms. Allocated memory was 142.6MB in the beginning and 587.2MB in the end (delta: 444.6MB). Free memory was 81.0MB in the beginning and 336.1MB in the end (delta: -255.1MB). Peak memory consumption was 320.1MB. Max. memory is 16.1GB. * Witness Printer took 91.43ms. Allocated memory is still 587.2MB. Free memory was 336.1MB in the beginning and 327.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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: 23.0s, OverallIterations: 17, TraceHistogramMax: 39, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1582 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1582 mSDsluCounter, 5388 SdHoareTripleChecker+Invalid, 3.4s 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, 4.0s 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: 0.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 575 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 14.8s 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! [2024-12-02 11:48:35,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46a728a-9dd0-4e55-ba0e-80324a1cf4df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE