./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-36.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_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/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_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/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_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/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 eac3468c0f4088651ddf076a06043d0b9c6e6e24604d04dedd9321326c1496b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:50:10,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:50:10,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:50:10,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:50:10,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:50:10,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:50:10,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:50:10,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:50:10,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:50:10,472 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:50:10,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:50:10,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:50:10,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:50:10,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:50:10,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:50:10,474 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:50:10,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:10,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:10,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:50:10,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:50:10,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:50:10,476 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_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/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 -> eac3468c0f4088651ddf076a06043d0b9c6e6e24604d04dedd9321326c1496b7 [2024-12-02 05:50:10,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:50:10,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:50:10,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:50:10,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:50:10,714 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:50:10,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-36.i [2024-12-02 05:50:13,383 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/data/2b2a537c2/3af0ac38efdb4118affb61733a6b55b0/FLAGb8a3635d3 [2024-12-02 05:50:13,593 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:50:13,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-36.i [2024-12-02 05:50:13,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/data/2b2a537c2/3af0ac38efdb4118affb61733a6b55b0/FLAGb8a3635d3 [2024-12-02 05:50:13,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/data/2b2a537c2/3af0ac38efdb4118affb61733a6b55b0 [2024-12-02 05:50:13,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:50:13,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:50:13,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:50:13,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:50:13,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:50:13,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f6cfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13, skipping insertion in model container [2024-12-02 05:50:13,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:50:13,765 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_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-36.i[915,928] [2024-12-02 05:50:13,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:50:13,804 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:50:13,815 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_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-36.i[915,928] [2024-12-02 05:50:13,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:50:13,845 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:50:13,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13 WrapperNode [2024-12-02 05:50:13,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:50:13,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:50:13,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:50:13,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:50:13,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,875 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2024-12-02 05:50:13,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:50:13,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:50:13,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:50:13,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:50:13,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,894 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 05:50:13,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,899 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:50:13,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:50:13,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:50:13,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:50:13,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (1/1) ... [2024-12-02 05:50:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:13,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:13,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:50:13,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:50:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:50:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 05:50:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 05:50:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:50:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:50:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:50:14,023 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:50:14,025 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:50:14,181 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 05:50:14,181 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:50:14,192 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:50:14,192 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:50:14,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:14 BoogieIcfgContainer [2024-12-02 05:50:14,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:50:14,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:50:14,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:50:14,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:50:14,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:50:13" (1/3) ... [2024-12-02 05:50:14,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ac5970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:14, skipping insertion in model container [2024-12-02 05:50:14,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:13" (2/3) ... [2024-12-02 05:50:14,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ac5970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:14, skipping insertion in model container [2024-12-02 05:50:14,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:14" (3/3) ... [2024-12-02 05:50:14,202 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-36.i [2024-12-02 05:50:14,214 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:50:14,216 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-36.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:50:14,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:50:14,272 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;@523a3393, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:50:14,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:50:14,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 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 05:50:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 05:50:14,282 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:14,283 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] [2024-12-02 05:50:14,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:14,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash 897699725, now seen corresponding path program 1 times [2024-12-02 05:50:14,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:14,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586180039] [2024-12-02 05:50:14,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:14,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:14,457 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 05:50:14,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:14,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586180039] [2024-12-02 05:50:14,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586180039] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:50:14,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850595853] [2024-12-02 05:50:14,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:14,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:14,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:50:14,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:50:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:14,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:50:14,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:50:14,579 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 05:50:14,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:50:14,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850595853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:14,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:50:14,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 05:50:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322874751] [2024-12-02 05:50:14,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:14,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:50:14,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:14,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:50:14,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:50:14,609 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 05:50:14,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:14,629 INFO L93 Difference]: Finished difference Result 77 states and 126 transitions. [2024-12-02 05:50:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:50:14,630 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 78 [2024-12-02 05:50:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:14,635 INFO L225 Difference]: With dead ends: 77 [2024-12-02 05:50:14,635 INFO L226 Difference]: Without dead ends: 38 [2024-12-02 05:50:14,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 79 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 05:50:14,640 INFO L435 NwaCegarLoop]: 53 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, 53 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 05:50:14,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-12-02 05:50:14,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-12-02 05:50:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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 05:50:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-12-02 05:50:14,673 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 78 [2024-12-02 05:50:14,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:14,673 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-12-02 05:50:14,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 05:50:14,674 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-12-02 05:50:14,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 05:50:14,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:14,676 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] [2024-12-02 05:50:14,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:50:14,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 05:50:14,877 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:14,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash -557582451, now seen corresponding path program 1 times [2024-12-02 05:50:14,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:14,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921730377] [2024-12-02 05:50:14,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:14,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:15,622 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 05:50:15,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:15,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921730377] [2024-12-02 05:50:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921730377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:15,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:15,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:50:15,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94367804] [2024-12-02 05:50:15,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:15,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:15,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:15,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:15,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:15,625 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 05:50:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:15,788 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2024-12-02 05:50:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 78 [2024-12-02 05:50:15,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:15,790 INFO L225 Difference]: With dead ends: 49 [2024-12-02 05:50:15,791 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 05:50:15,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:15,792 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 9 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:15,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 189 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 05:50:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2024-12-02 05:50:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.2580645161290323) 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 05:50:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2024-12-02 05:50:15,800 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 78 [2024-12-02 05:50:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:15,801 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-12-02 05:50:15,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 05:50:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2024-12-02 05:50:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 05:50:15,803 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:15,803 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] [2024-12-02 05:50:15,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:50:15,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:15,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:15,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1217424911, now seen corresponding path program 1 times [2024-12-02 05:50:15,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:15,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653689955] [2024-12-02 05:50:15,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:15,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:16,201 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 05:50:16,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:16,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653689955] [2024-12-02 05:50:16,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653689955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:16,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:16,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:50:16,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37160630] [2024-12-02 05:50:16,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:16,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:50:16,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:16,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:50:16,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:16,202 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 05:50:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:16,369 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2024-12-02 05:50:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:50:16,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 78 [2024-12-02 05:50:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:16,371 INFO L225 Difference]: With dead ends: 47 [2024-12-02 05:50:16,371 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 05:50:16,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:50:16,372 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:16,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 247 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:50:16,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 05:50:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 05:50:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 05:50:16,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-12-02 05:50:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:16,373 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 05:50:16,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 05:50:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 05:50:16,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 05:50:16,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 05:50:16,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:50:16,379 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 05:50:16,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 05:50:16,401 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 05:50:16,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:50:16 BoogieIcfgContainer [2024-12-02 05:50:16,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 05:50:16,411 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 05:50:16,411 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 05:50:16,411 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 05:50:16,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:14" (3/4) ... [2024-12-02 05:50:16,414 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 05:50:16,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 05:50:16,422 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 05:50:16,422 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 05:50:16,422 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 05:50:16,422 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 05:50:16,494 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 05:50:16,495 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 05:50:16,495 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 05:50:16,496 INFO L158 Benchmark]: Toolchain (without parser) took 2874.72ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 51.0MB in the end (delta: 65.7MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2024-12-02 05:50:16,496 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:50:16,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.92ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 105.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 05:50:16,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.44ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:50:16,497 INFO L158 Benchmark]: Boogie Preprocessor took 28.99ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 05:50:16,497 INFO L158 Benchmark]: RCFGBuilder took 286.51ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 89.4MB in the end (delta: 12.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:50:16,497 INFO L158 Benchmark]: TraceAbstraction took 2215.58ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 56.0MB in the end (delta: 32.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2024-12-02 05:50:16,497 INFO L158 Benchmark]: Witness Printer took 83.62ms. Allocated memory is still 142.6MB. Free memory was 56.0MB in the beginning and 51.0MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:50:16,499 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.92ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 105.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.44ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.99ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 286.51ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 89.4MB in the end (delta: 12.5MB). There was no memory consumed. Max. memory is 16.1GB. * TraceAbstraction took 2215.58ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 56.0MB in the end (delta: 32.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 83.62ms. Allocated memory is still 142.6MB. Free memory was 56.0MB in the beginning and 51.0MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 489 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 339 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 150 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1034/1056 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 05:50:16,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683e6168-89df-4c25-8f9e-7a4fd7a2fe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE