./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.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_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/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_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/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_2305cd26-0217-40ac-b77c-086687068074/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 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:04:07,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:04:07,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:04:07,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:04:07,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:04:07,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:04:07,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:04:07,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:04:07,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:04:07,182 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:04:07,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:04:07,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:04:07,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:04:07,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:04:07,182 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:04:07,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:04:07,183 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:04:07,184 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:04:07,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:04:07,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:04:07,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:04:07,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:04:07,185 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_2305cd26-0217-40ac-b77c-086687068074/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 -> 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd [2024-12-02 06:04:07,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:04:07,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:04:07,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:04:07,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:04:07,419 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:04:07,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2024-12-02 06:04:10,080 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/10c2ab059/86292230b90f49c5b3f97e07397a6635/FLAGecda92057 [2024-12-02 06:04:10,258 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:04:10,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2024-12-02 06:04:10,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/10c2ab059/86292230b90f49c5b3f97e07397a6635/FLAGecda92057 [2024-12-02 06:04:10,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/10c2ab059/86292230b90f49c5b3f97e07397a6635 [2024-12-02 06:04:10,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:04:10,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:04:10,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:04:10,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:04:10,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:04:10,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba89983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10, skipping insertion in model container [2024-12-02 06:04:10,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,297 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:04:10,401 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_2305cd26-0217-40ac-b77c-086687068074/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2024-12-02 06:04:10,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:04:10,454 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:04:10,462 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_2305cd26-0217-40ac-b77c-086687068074/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2024-12-02 06:04:10,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:04:10,496 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:04:10,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10 WrapperNode [2024-12-02 06:04:10,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:04:10,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:04:10,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:04:10,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:04:10,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,535 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-12-02 06:04:10,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:04:10,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:04:10,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:04:10,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:04:10,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,559 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 06:04:10,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,566 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:04:10,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:04:10,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:04:10,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:04:10,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (1/1) ... [2024-12-02 06:04:10,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:04:10,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:04:10,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:04:10,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:04:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:04:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:04:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:04:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:04:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:04:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:04:10,683 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:04:10,684 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:04:10,906 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 06:04:10,906 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:04:10,915 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:04:10,916 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:04:10,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:10 BoogieIcfgContainer [2024-12-02 06:04:10,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:04:10,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:04:10,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:04:10,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:04:10,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:04:10" (1/3) ... [2024-12-02 06:04:10,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13245c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:10, skipping insertion in model container [2024-12-02 06:04:10,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:10" (2/3) ... [2024-12-02 06:04:10,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13245c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:10, skipping insertion in model container [2024-12-02 06:04:10,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:10" (3/3) ... [2024-12-02 06:04:10,925 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-70.i [2024-12-02 06:04:10,939 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:04:10,940 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-70.i that has 2 procedures, 60 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:04:10,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:04:10,994 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;@5e37bfe1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:04:10,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:04:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 46 states have internal predecessors, (61), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:11,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 06:04:11,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:11,007 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:11,007 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:11,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash 361599463, now seen corresponding path program 1 times [2024-12-02 06:04:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:11,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474471988] [2024-12-02 06:04:11,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 06:04:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474471988] [2024-12-02 06:04:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474471988] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:04:11,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347277022] [2024-12-02 06:04:11,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:11,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:04:11,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:04:11,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:04:11,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:04:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:11,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:04:11,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 06:04:11,361 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:11,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347277022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:11,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:04:11,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:04:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039884142] [2024-12-02 06:04:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:11,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:04:11,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:11,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:04:11,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:04:11,388 INFO L87 Difference]: Start difference. First operand has 60 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 46 states have internal predecessors, (61), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:04:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:11,408 INFO L93 Difference]: Finished difference Result 113 states and 176 transitions. [2024-12-02 06:04:11,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:04:11,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2024-12-02 06:04:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:11,415 INFO L225 Difference]: With dead ends: 113 [2024-12-02 06:04:11,415 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 06:04:11,418 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 06:04:11,421 INFO L435 NwaCegarLoop]: 78 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, 78 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 06:04:11,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:04:11,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 06:04:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 06:04:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 42 states have internal predecessors, (54), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:11,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2024-12-02 06:04:11,447 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 87 [2024-12-02 06:04:11,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:11,448 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2024-12-02 06:04:11,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:04:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2024-12-02 06:04:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 06:04:11,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:11,450 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:11,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:04:11,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:04:11,651 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:11,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:11,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1722646049, now seen corresponding path program 1 times [2024-12-02 06:04:11,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:11,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761383511] [2024-12-02 06:04:11,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:11,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:11,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:11,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761383511] [2024-12-02 06:04:11,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761383511] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:11,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:11,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:04:11,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69284533] [2024-12-02 06:04:11,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:11,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:04:11,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:11,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:04:11,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:04:11,813 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:11,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:11,871 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-12-02 06:04:11,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:04:11,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2024-12-02 06:04:11,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:11,873 INFO L225 Difference]: With dead ends: 109 [2024-12-02 06:04:11,873 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 06:04:11,874 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 06:04:11,874 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:11,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:04:11,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 06:04:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 06:04:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2024-12-02 06:04:11,882 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 87 [2024-12-02 06:04:11,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:11,884 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2024-12-02 06:04:11,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:11,884 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-12-02 06:04:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:11,885 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:11,885 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:11,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:04:11,886 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:11,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:11,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1093098808, now seen corresponding path program 1 times [2024-12-02 06:04:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:11,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095403943] [2024-12-02 06:04:11,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:11,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:12,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:12,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095403943] [2024-12-02 06:04:12,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095403943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:12,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:12,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:04:12,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227078173] [2024-12-02 06:04:12,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:12,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:04:12,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:12,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:04:12,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:04:12,085 INFO L87 Difference]: Start difference. First operand 56 states and 77 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:12,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:12,150 INFO L93 Difference]: Finished difference Result 109 states and 151 transitions. [2024-12-02 06:04:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:04:12,151 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:12,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:12,152 INFO L225 Difference]: With dead ends: 109 [2024-12-02 06:04:12,152 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 06:04:12,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 06:04:12,153 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:12,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:04:12,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 06:04:12,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 06:04:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 42 states have internal predecessors, (52), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2024-12-02 06:04:12,160 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 89 [2024-12-02 06:04:12,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:12,160 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2024-12-02 06:04:12,160 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2024-12-02 06:04:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:12,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:12,162 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:12,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:04:12,162 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:12,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:12,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1426861126, now seen corresponding path program 1 times [2024-12-02 06:04:12,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:12,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770845671] [2024-12-02 06:04:12,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:12,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:12,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:12,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770845671] [2024-12-02 06:04:12,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770845671] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:12,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:12,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:04:12,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057845111] [2024-12-02 06:04:12,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:12,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:04:12,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:12,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:04:12,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:04:12,961 INFO L87 Difference]: Start difference. First operand 56 states and 76 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:13,488 INFO L93 Difference]: Finished difference Result 185 states and 245 transitions. [2024-12-02 06:04:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:04:13,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:13,491 INFO L225 Difference]: With dead ends: 185 [2024-12-02 06:04:13,491 INFO L226 Difference]: Without dead ends: 132 [2024-12-02 06:04:13,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:04:13,492 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 105 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:13,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 332 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:04:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-12-02 06:04:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 95. [2024-12-02 06:04:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 79 states have internal predecessors, (99), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 127 transitions. [2024-12-02 06:04:13,505 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 127 transitions. Word has length 89 [2024-12-02 06:04:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:13,505 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 127 transitions. [2024-12-02 06:04:13,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 127 transitions. [2024-12-02 06:04:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:13,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:13,507 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:13,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:04:13,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:13,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash -746802756, now seen corresponding path program 1 times [2024-12-02 06:04:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:13,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465297075] [2024-12-02 06:04:13,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:13,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:15,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:15,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465297075] [2024-12-02 06:04:15,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465297075] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:15,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:15,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:04:15,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290196448] [2024-12-02 06:04:15,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:15,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:04:15,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:15,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:04:15,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:04:15,022 INFO L87 Difference]: Start difference. First operand 95 states and 127 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:15,271 INFO L93 Difference]: Finished difference Result 213 states and 281 transitions. [2024-12-02 06:04:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:04:15,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:15,274 INFO L225 Difference]: With dead ends: 213 [2024-12-02 06:04:15,274 INFO L226 Difference]: Without dead ends: 121 [2024-12-02 06:04:15,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:04:15,276 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 74 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:15,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 167 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:04:15,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-12-02 06:04:15,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 102. [2024-12-02 06:04:15,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 85 states have (on average 1.2588235294117647) internal successors, (107), 86 states have internal predecessors, (107), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:15,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 135 transitions. [2024-12-02 06:04:15,287 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 135 transitions. Word has length 89 [2024-12-02 06:04:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:15,287 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 135 transitions. [2024-12-02 06:04:15,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 135 transitions. [2024-12-02 06:04:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:15,289 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:15,289 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:15,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:04:15,289 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:15,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1588242492, now seen corresponding path program 1 times [2024-12-02 06:04:15,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:15,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483757274] [2024-12-02 06:04:15,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:15,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:19,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:19,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483757274] [2024-12-02 06:04:19,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483757274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:19,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:19,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:04:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195339450] [2024-12-02 06:04:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:19,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:04:19,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:19,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:04:19,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:04:19,068 INFO L87 Difference]: Start difference. First operand 102 states and 135 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:20,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:20,177 INFO L93 Difference]: Finished difference Result 246 states and 321 transitions. [2024-12-02 06:04:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:04:20,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:20,179 INFO L225 Difference]: With dead ends: 246 [2024-12-02 06:04:20,179 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 06:04:20,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:04:20,180 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 157 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:20,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 303 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:04:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 06:04:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 104. [2024-12-02 06:04:20,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2024-12-02 06:04:20,191 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 89 [2024-12-02 06:04:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:20,191 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2024-12-02 06:04:20,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2024-12-02 06:04:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:20,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:20,193 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:20,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:04:20,193 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:20,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2026666434, now seen corresponding path program 1 times [2024-12-02 06:04:20,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:20,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955718447] [2024-12-02 06:04:20,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:20,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:20,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:20,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955718447] [2024-12-02 06:04:20,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955718447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:20,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:20,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:04:20,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669179760] [2024-12-02 06:04:20,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:20,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:04:20,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:20,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:04:20,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:04:20,923 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:21,136 INFO L93 Difference]: Finished difference Result 224 states and 295 transitions. [2024-12-02 06:04:21,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:04:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:21,138 INFO L225 Difference]: With dead ends: 224 [2024-12-02 06:04:21,138 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 06:04:21,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:04:21,139 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 24 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:21,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 241 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:04:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 06:04:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 95. [2024-12-02 06:04:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 126 transitions. [2024-12-02 06:04:21,150 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 126 transitions. Word has length 89 [2024-12-02 06:04:21,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:21,150 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 126 transitions. [2024-12-02 06:04:21,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,151 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 126 transitions. [2024-12-02 06:04:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:21,152 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:21,152 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:21,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:04:21,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:21,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:21,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1847037816, now seen corresponding path program 1 times [2024-12-02 06:04:21,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:21,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239387381] [2024-12-02 06:04:21,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:21,192 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:21,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:21,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239387381] [2024-12-02 06:04:21,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239387381] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:21,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:21,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:04:21,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688338313] [2024-12-02 06:04:21,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:21,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:04:21,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:21,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:04:21,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:04:21,194 INFO L87 Difference]: Start difference. First operand 95 states and 126 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:21,215 INFO L93 Difference]: Finished difference Result 191 states and 252 transitions. [2024-12-02 06:04:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:04:21,216 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:21,217 INFO L225 Difference]: With dead ends: 191 [2024-12-02 06:04:21,217 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 06:04:21,217 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 06:04:21,218 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 36 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:21,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 165 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:04:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 06:04:21,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-12-02 06:04:21,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 79 states have internal predecessors, (97), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 125 transitions. [2024-12-02 06:04:21,227 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 125 transitions. Word has length 89 [2024-12-02 06:04:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:21,227 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 125 transitions. [2024-12-02 06:04:21,227 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2024-12-02 06:04:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 06:04:21,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:21,228 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:21,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:04:21,229 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:21,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:21,229 INFO L85 PathProgramCache]: Analyzing trace with hash 567174138, now seen corresponding path program 1 times [2024-12-02 06:04:21,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:21,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692507029] [2024-12-02 06:04:21,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:21,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:21,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692507029] [2024-12-02 06:04:21,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692507029] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:21,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:21,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:04:21,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863174013] [2024-12-02 06:04:21,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:21,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:04:21,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:21,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:04:21,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:04:21,348 INFO L87 Difference]: Start difference. First operand 95 states and 125 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:21,383 INFO L93 Difference]: Finished difference Result 191 states and 250 transitions. [2024-12-02 06:04:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:04:21,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-12-02 06:04:21,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:21,384 INFO L225 Difference]: With dead ends: 191 [2024-12-02 06:04:21,384 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 06:04:21,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:04:21,385 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 26 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:21,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 265 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:04:21,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 06:04:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-12-02 06:04:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 79 states have internal predecessors, (96), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 124 transitions. [2024-12-02 06:04:21,393 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 124 transitions. Word has length 89 [2024-12-02 06:04:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:21,393 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 124 transitions. [2024-12-02 06:04:21,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 124 transitions. [2024-12-02 06:04:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:04:21,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:21,394 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:21,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:04:21,395 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:21,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:21,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1590435370, now seen corresponding path program 1 times [2024-12-02 06:04:21,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:21,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589003630] [2024-12-02 06:04:21,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:21,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:21,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589003630] [2024-12-02 06:04:21,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589003630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:21,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:21,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:04:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984315843] [2024-12-02 06:04:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:21,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:04:21,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:21,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:04:21,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:04:21,442 INFO L87 Difference]: Start difference. First operand 95 states and 124 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:21,479 INFO L93 Difference]: Finished difference Result 187 states and 245 transitions. [2024-12-02 06:04:21,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:04:21,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2024-12-02 06:04:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:21,481 INFO L225 Difference]: With dead ends: 187 [2024-12-02 06:04:21,481 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 06:04:21,481 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 06:04:21,482 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:21,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:04:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 06:04:21,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-12-02 06:04:21,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2024-12-02 06:04:21,491 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 92 [2024-12-02 06:04:21,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:21,491 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2024-12-02 06:04:21,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2024-12-02 06:04:21,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 06:04:21,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:21,492 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:21,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:04:21,493 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:21,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash 790629379, now seen corresponding path program 1 times [2024-12-02 06:04:21,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:21,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671744509] [2024-12-02 06:04:21,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:21,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 06:04:21,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:21,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671744509] [2024-12-02 06:04:21,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671744509] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:04:21,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634797812] [2024-12-02 06:04:21,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:21,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:04:21,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:04:21,711 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:04:21,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:04:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:21,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 06:04:21,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 113 proven. 24 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-12-02 06:04:22,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:04:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 06:04:22,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634797812] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:04:22,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:04:22,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2024-12-02 06:04:22,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642517138] [2024-12-02 06:04:22,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:04:22,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:04:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:22,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:04:22,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:04:22,248 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 06:04:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:22,917 INFO L93 Difference]: Finished difference Result 286 states and 356 transitions. [2024-12-02 06:04:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 06:04:22,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 94 [2024-12-02 06:04:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:22,919 INFO L225 Difference]: With dead ends: 286 [2024-12-02 06:04:22,919 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 06:04:22,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=277, Invalid=653, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:04:22,921 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 363 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:22,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 203 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:04:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 06:04:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 114. [2024-12-02 06:04:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 96 states have (on average 1.15625) internal successors, (111), 97 states have internal predecessors, (111), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-12-02 06:04:22,934 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 94 [2024-12-02 06:04:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:22,934 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-12-02 06:04:22,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 06:04:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-12-02 06:04:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 06:04:22,935 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:22,936 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:22,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:04:23,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 06:04:23,136 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:23,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 984098179, now seen corresponding path program 1 times [2024-12-02 06:04:23,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:23,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081620701] [2024-12-02 06:04:23,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:23,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 06:04:23,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:04:23,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081620701] [2024-12-02 06:04:23,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081620701] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:04:23,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161119101] [2024-12-02 06:04:23,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:23,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:04:23,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:04:23,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:04:23,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:04:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:23,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 06:04:23,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 06:04:24,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:04:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 06:04:24,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161119101] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:04:24,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:04:24,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 9] total 25 [2024-12-02 06:04:24,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859111881] [2024-12-02 06:04:24,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:04:24,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 06:04:24,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:04:24,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 06:04:24,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:04:24,271 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 06:04:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:25,079 INFO L93 Difference]: Finished difference Result 238 states and 286 transitions. [2024-12-02 06:04:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 06:04:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 94 [2024-12-02 06:04:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:25,081 INFO L225 Difference]: With dead ends: 238 [2024-12-02 06:04:25,081 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 06:04:25,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=328, Invalid=1312, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 06:04:25,082 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 332 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:25,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 367 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:04:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 06:04:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 118. [2024-12-02 06:04:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.1111111111111112) internal successors, (110), 100 states have internal predecessors, (110), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 138 transitions. [2024-12-02 06:04:25,094 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 138 transitions. Word has length 94 [2024-12-02 06:04:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:25,095 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 138 transitions. [2024-12-02 06:04:25,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 06:04:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 138 transitions. [2024-12-02 06:04:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 06:04:25,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:25,096 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:25,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 06:04:25,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 06:04:25,297 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:25,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:25,297 INFO L85 PathProgramCache]: Analyzing trace with hash -27019071, now seen corresponding path program 1 times [2024-12-02 06:04:25,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:04:25,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262929444] [2024-12-02 06:04:25,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:25,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:04:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:04:25,318 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:04:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:04:25,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 06:04:25,363 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:04:25,364 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:04:25,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:04:25,368 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:04:25,415 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:04:25,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:04:25 BoogieIcfgContainer [2024-12-02 06:04:25,418 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:04:25,419 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:04:25,419 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:04:25,419 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:04:25,419 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:10" (3/4) ... [2024-12-02 06:04:25,421 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 06:04:25,422 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:04:25,423 INFO L158 Benchmark]: Toolchain (without parser) took 15142.83ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 116.9MB in the beginning and 277.5MB in the end (delta: -160.6MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2024-12-02 06:04:25,423 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:04:25,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.90ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 103.7MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:04:25,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.58ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 101.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:04:25,424 INFO L158 Benchmark]: Boogie Preprocessor took 41.85ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 97.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:04:25,424 INFO L158 Benchmark]: RCFGBuilder took 338.34ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 79.6MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:04:25,425 INFO L158 Benchmark]: TraceAbstraction took 14499.79ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 79.1MB in the beginning and 277.5MB in the end (delta: -198.4MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-12-02 06:04:25,425 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 385.9MB. Free memory was 277.5MB in the beginning and 277.5MB in the end (delta: 51.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:04:25,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.90ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 103.7MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.58ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 101.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.85ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 97.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.34ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 79.6MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14499.79ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 79.1MB in the beginning and 277.5MB in the end (delta: -198.4MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 385.9MB. Free memory was 277.5MB in the beginning and 277.5MB in the end (delta: 51.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 57, overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryDOUBLEComparisonOperation at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 72. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_4 = 19138; [L25] signed char var_1_6 = 25; [L26] signed long int var_1_7 = -50; [L27] double var_1_8 = 8.3; [L28] double var_1_9 = 255.6; [L29] double var_1_10 = 10000000.375; [L30] double var_1_11 = 0.0; [L31] double var_1_12 = 255.375; [L32] unsigned char var_1_13 = 50; [L33] unsigned char var_1_14 = 2; [L34] signed char var_1_15 = 1; [L35] signed char var_1_16 = 5; VAL [isInitial=0, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L89] isInitial = 1 [L90] FCALL initially() [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=19138, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L64] var_1_4 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L65] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L66] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L66] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10, var_1_9=1278/5] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L68] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=80000003/8, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L69] var_1_10 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L70] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=0, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L71] var_1_11 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L72] RET assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=2043/8, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L73] var_1_12 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L74] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_13=50, var_1_14=2, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L75] var_1_14 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_13=50, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L77] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L77] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=5, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L78] var_1_16 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L79] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L80] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L80] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_13=50, var_1_14=0, var_1_15=1, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L93] RET updateVariables() [L94] CALL step() [L39] var_1_13 = var_1_14 [L40] var_1_15 = var_1_16 VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=0, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L41] COND TRUE \read(var_1_2) [L42] var_1_1 = ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L44] COND FALSE !(var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L47] unsigned short int stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR var_1_13 << var_1_13 VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR var_1_13 << var_1_13 VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, stepLocal_0=16383, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=-50, var_1_8=83/10] [L48] COND FALSE !(stepLocal_0 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) [L51] var_1_7 = (var_1_13 + (var_1_1 + var_1_4)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988, var_1_8=83/10] [L53] unsigned char stepLocal_1 = var_1_13; VAL [isInitial=1, stepLocal_1=0, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988, var_1_8=83/10] [L54] COND FALSE !(var_1_13 < stepLocal_1) [L57] var_1_8 = ((var_1_11 - var_1_12) - var_1_9) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L94] RET step() [L95] CALL, EXPR property() [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR var_1_13 << var_1_13 VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR var_1_13 << var_1_13 VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR ((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13)) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85] EXPR ((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4))))) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L85-L86] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) ((17222 - var_1_13) + (((((29916) < (var_1_4)) ? (29916) : (var_1_4))) - var_1_13)))) : 1) && ((var_1_2 && (var_1_4 >= (var_1_13 + var_1_1))) ? (var_1_6 == ((signed char) 8)) : 1)) && ((var_1_4 <= ((((var_1_13) > ((var_1_13 << var_1_13))) ? (var_1_13) : ((var_1_13 << var_1_13))))) ? (var_1_7 == ((signed long int) (((((var_1_13 - var_1_13)) < (var_1_4)) ? ((var_1_13 - var_1_13)) : (var_1_4))))) : (var_1_7 == ((signed long int) (var_1_13 + (var_1_1 + var_1_4)))))) && ((var_1_13 < var_1_13) ? (var_1_8 == ((double) (var_1_9 - var_1_10))) : (var_1_8 == ((double) ((var_1_11 - var_1_12) - var_1_9))))) && (var_1_13 == ((unsigned char) var_1_14))) && (var_1_15 == ((signed char) var_1_16)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] [L19] reach_error() VAL [isInitial=1, var_1_13=0, var_1_14=0, var_1_15=126, var_1_16=126, var_1_1=33605, var_1_2=1, var_1_4=16383, var_1_6=25, var_1_7=49988] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 13, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1125 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1117 mSDsluCounter, 2492 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1632 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1832 IncrementalHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 860 mSDtfsCounter, 1832 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 579 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=12, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 224 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 1446 NumberOfCodeBlocks, 1446 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1523 ConstructedInterpolants, 0 QuantifiedInterpolants, 6327 SizeOfPredicates, 6 NumberOfNonLiveVariables, 668 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 4292/4488 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 06:04:25,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/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_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/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 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:04:27,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:04:27,452 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 06:04:27,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:04:27,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:04:27,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:04:27,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:04:27,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:04:27,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:04:27,482 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:04:27,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:04:27,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:04:27,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:04:27,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:04:27,483 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:04:27,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:04:27,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:04:27,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:04:27,485 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:04:27,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:04:27,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:04:27,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:04:27,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:04:27,487 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_2305cd26-0217-40ac-b77c-086687068074/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 -> 9fafab56630000a79d8eb06cf156a630d9ee1a5dd58dfc1d8991b95956e4dffd [2024-12-02 06:04:27,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:04:27,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:04:27,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:04:27,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:04:27,718 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:04:27,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2024-12-02 06:04:30,348 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/9e785b892/b48e4bcd02044053bf62837a7a2cc79a/FLAG86fa74a23 [2024-12-02 06:04:30,545 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:04:30,546 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i [2024-12-02 06:04:30,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/9e785b892/b48e4bcd02044053bf62837a7a2cc79a/FLAG86fa74a23 [2024-12-02 06:04:30,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/data/9e785b892/b48e4bcd02044053bf62837a7a2cc79a [2024-12-02 06:04:30,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:04:30,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:04:30,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:04:30,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:04:30,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:04:30,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42adf2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30, skipping insertion in model container [2024-12-02 06:04:30,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:04:30,692 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_2305cd26-0217-40ac-b77c-086687068074/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2024-12-02 06:04:30,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:04:30,742 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:04:30,751 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_2305cd26-0217-40ac-b77c-086687068074/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-70.i[913,926] [2024-12-02 06:04:30,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:04:30,783 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:04:30,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30 WrapperNode [2024-12-02 06:04:30,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:04:30,785 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:04:30,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:04:30,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:04:30,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,818 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2024-12-02 06:04:30,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:04:30,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:04:30,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:04:30,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:04:30,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,839 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 06:04:30,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,846 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,852 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:04:30,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:04:30,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:04:30,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:04:30,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (1/1) ... [2024-12-02 06:04:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:04:30,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:04:30,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:04:30,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:04:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:04:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 06:04:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:04:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:04:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:04:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:04:30,964 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:04:30,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:04:32,793 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 06:04:32,793 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:04:32,800 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:04:32,800 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:04:32,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:32 BoogieIcfgContainer [2024-12-02 06:04:32,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:04:32,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:04:32,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:04:32,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:04:32,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:04:30" (1/3) ... [2024-12-02 06:04:32,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fff838e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:32, skipping insertion in model container [2024-12-02 06:04:32,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:04:30" (2/3) ... [2024-12-02 06:04:32,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fff838e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:04:32, skipping insertion in model container [2024-12-02 06:04:32,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:04:32" (3/3) ... [2024-12-02 06:04:32,810 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-70.i [2024-12-02 06:04:32,824 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:04:32,825 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-70.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:04:32,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:04:32,882 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;@1f6b4e2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:04:32,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:04:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:32,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 06:04:32,892 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:32,892 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:32,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:32,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1062525254, now seen corresponding path program 1 times [2024-12-02 06:04:32,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:32,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002747679] [2024-12-02 06:04:32,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:32,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:32,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:32,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:32,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 06:04:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:33,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:04:33,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 06:04:33,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:33,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:33,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002747679] [2024-12-02 06:04:33,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002747679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:33,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:33,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:04:33,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43388747] [2024-12-02 06:04:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:33,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:04:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:33,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:04:33,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:04:33,265 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:04:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:33,282 INFO L93 Difference]: Finished difference Result 83 states and 132 transitions. [2024-12-02 06:04:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:04:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2024-12-02 06:04:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:33,289 INFO L225 Difference]: With dead ends: 83 [2024-12-02 06:04:33,289 INFO L226 Difference]: Without dead ends: 41 [2024-12-02 06:04:33,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 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 06:04:33,293 INFO L435 NwaCegarLoop]: 56 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, 56 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 06:04:33,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:04:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-12-02 06:04:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-12-02 06:04:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-12-02 06:04:33,326 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 83 [2024-12-02 06:04:33,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:33,326 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-12-02 06:04:33,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 06:04:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-12-02 06:04:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 06:04:33,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:33,329 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:33,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 06:04:33,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:33,530 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:33,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash 960529726, now seen corresponding path program 1 times [2024-12-02 06:04:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:33,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185270232] [2024-12-02 06:04:33,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:33,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:33,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:33,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:33,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 06:04:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:33,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:04:33,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 06:04:33,907 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:04:33,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:33,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185270232] [2024-12-02 06:04:33,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185270232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:04:33,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:04:33,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:04:33,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300853611] [2024-12-02 06:04:33,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:04:33,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:04:33,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:33,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:04:33,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:04:33,910 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:35,436 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2024-12-02 06:04:35,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:04:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2024-12-02 06:04:35,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:35,447 INFO L225 Difference]: With dead ends: 79 [2024-12-02 06:04:35,447 INFO L226 Difference]: Without dead ends: 41 [2024-12-02 06:04:35,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 06:04:35,448 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:35,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:04:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-12-02 06:04:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-12-02 06:04:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 06:04:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2024-12-02 06:04:35,454 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 83 [2024-12-02 06:04:35,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:35,456 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2024-12-02 06:04:35,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 06:04:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2024-12-02 06:04:35,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 06:04:35,457 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:35,457 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:35,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 06:04:35,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:35,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:35,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash 962376768, now seen corresponding path program 1 times [2024-12-02 06:04:35,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:35,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760795841] [2024-12-02 06:04:35,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:35,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:35,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:35,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:35,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 06:04:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:35,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:04:35,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 06:04:36,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:04:36,773 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:04:36,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760795841] [2024-12-02 06:04:36,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760795841] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:04:36,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [121476281] [2024-12-02 06:04:36,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:36,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 06:04:36,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 06:04:36,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 06:04:36,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-02 06:04:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:37,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 06:04:37,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:04:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 98 proven. 48 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 06:04:38,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:04:38,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [121476281] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:04:38,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:04:38,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2024-12-02 06:04:38,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309126348] [2024-12-02 06:04:38,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:04:38,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:04:38,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:04:38,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:04:38,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:04:38,219 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 06:04:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:04:40,577 INFO L93 Difference]: Finished difference Result 111 states and 140 transitions. [2024-12-02 06:04:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:04:40,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 83 [2024-12-02 06:04:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:04:40,579 INFO L225 Difference]: With dead ends: 111 [2024-12-02 06:04:40,579 INFO L226 Difference]: Without dead ends: 73 [2024-12-02 06:04:40,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:04:40,581 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:04:40,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 126 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 06:04:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-12-02 06:04:40,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2024-12-02 06:04:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.127659574468085) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 06:04:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2024-12-02 06:04:40,593 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 83 [2024-12-02 06:04:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:04:40,594 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2024-12-02 06:04:40,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 06:04:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2024-12-02 06:04:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 06:04:40,595 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:04:40,595 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:40,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 06:04:40,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-02 06:04:40,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 06:04:40,996 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:04:40,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:04:40,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1642435138, now seen corresponding path program 1 times [2024-12-02 06:04:40,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:04:40,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981740996] [2024-12-02 06:04:40,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:04:40,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:04:40,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:04:40,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:04:41,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2305cd26-0217-40ac-b77c-086687068074/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 06:04:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:04:41,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 06:04:41,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:38,744 WARN L286 SmtUtils]: Spent 20.81s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 06:11:47,700 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:12:52,139 WARN L286 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:13:02,488 WARN L286 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:13:12,873 WARN L286 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:13:35,521 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:13:45,455 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:14:23,543 WARN L286 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:14:30,741 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:14:41,467 WARN L286 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:14:48,541 WARN L286 SmtUtils]: Spent 6.16s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:14:59,255 WARN L286 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:15:05,215 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:15:15,670 WARN L286 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:15:21,571 WARN L286 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:15:27,598 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:15:39,835 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:15:49,585 WARN L286 SmtUtils]: Spent 6.59s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:16:07,195 WARN L286 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:16:16,552 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:16:29,325 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:16:35,688 WARN L286 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:16:41,768 WARN L286 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 06:16:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 164 proven. 69 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 06:16:45,899 INFO L312 TraceCheckSpWp]: Computing backward predicates...