./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.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_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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_86c05c84-8300-4882-bfb8-e5a016f19759/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 f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:52:02,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:52:02,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:52:02,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:52:02,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:52:02,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:52:02,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:52:02,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:52:02,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:52:02,487 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:52:02,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:52:02,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:52:02,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:52:02,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:52:02,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:52:02,489 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:02,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:52:02,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:02,490 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:52:02,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:52:02,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:52:02,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:52:02,491 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_86c05c84-8300-4882-bfb8-e5a016f19759/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 -> f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 [2024-12-02 13:52:02,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:52:02,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:52:02,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:52:02,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:52:02,750 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:52:02,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-12-02 13:52:05,477 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/5a914bfd5/b67a887c3c0a4cf2914511cf1116d973/FLAG874723613 [2024-12-02 13:52:05,683 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:52:05,683 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-12-02 13:52:05,692 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/5a914bfd5/b67a887c3c0a4cf2914511cf1116d973/FLAG874723613 [2024-12-02 13:52:05,709 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/5a914bfd5/b67a887c3c0a4cf2914511cf1116d973 [2024-12-02 13:52:05,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:52:05,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:52:05,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:52:05,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:52:05,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:52:05,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:05,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75174171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05, skipping insertion in model container [2024-12-02 13:52:05,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:05,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:52:05,872 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_86c05c84-8300-4882-bfb8-e5a016f19759/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i[913,926] [2024-12-02 13:52:05,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:52:05,925 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:52:05,936 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_86c05c84-8300-4882-bfb8-e5a016f19759/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i[913,926] [2024-12-02 13:52:05,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:52:05,972 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:52:05,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05 WrapperNode [2024-12-02 13:52:05,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:52:05,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:52:05,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:52:05,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:52:05,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:05,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,008 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-12-02 13:52:06,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:52:06,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:52:06,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:52:06,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:52:06,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,034 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 13:52:06,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,038 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:52:06,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:52:06,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:52:06,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:52:06,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (1/1) ... [2024-12-02 13:52:06,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:06,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:52:06,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:52:06,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:52:06,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:52:06,110 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:52:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:52:06,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:52:06,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:52:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:52:06,177 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:52:06,179 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:52:06,380 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 13:52:06,380 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:52:06,392 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:52:06,392 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:52:06,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:06 BoogieIcfgContainer [2024-12-02 13:52:06,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:52:06,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:52:06,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:52:06,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:52:06,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:52:05" (1/3) ... [2024-12-02 13:52:06,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ecc3af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:06, skipping insertion in model container [2024-12-02 13:52:06,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:05" (2/3) ... [2024-12-02 13:52:06,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ecc3af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:06, skipping insertion in model container [2024-12-02 13:52:06,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:06" (3/3) ... [2024-12-02 13:52:06,403 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-15.i [2024-12-02 13:52:06,421 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:52:06,423 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-15.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:52:06,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:52:06,498 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;@7b22e44a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:52:06,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:52:06,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 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 13:52:06,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:52:06,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:06,513 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] [2024-12-02 13:52:06,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:06,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:06,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1601258831, now seen corresponding path program 1 times [2024-12-02 13:52:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:06,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330551387] [2024-12-02 13:52:06,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:06,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:06,732 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 13:52:06,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:06,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330551387] [2024-12-02 13:52:06,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330551387] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:52:06,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769723954] [2024-12-02 13:52:06,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:06,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:52:06,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:52:06,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:52:06,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:52:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:06,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:52:06,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:52:06,874 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 13:52:06,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:52:06,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769723954] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:06,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:52:06,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:52:06,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928621743] [2024-12-02 13:52:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:06,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:52:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:06,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:52:06,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:52:06,897 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 13:52:06,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:06,916 INFO L93 Difference]: Finished difference Result 85 states and 138 transitions. [2024-12-02 13:52:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:52:06,918 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (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 82 [2024-12-02 13:52:06,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:06,923 INFO L225 Difference]: With dead ends: 85 [2024-12-02 13:52:06,923 INFO L226 Difference]: Without dead ends: 42 [2024-12-02 13:52:06,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 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 13:52:06,928 INFO L435 NwaCegarLoop]: 58 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, 58 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 13:52:06,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:06,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-12-02 13:52:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-12-02 13:52:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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 13:52:06,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-12-02 13:52:06,959 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 82 [2024-12-02 13:52:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:06,959 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-12-02 13:52:06,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (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 13:52:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-12-02 13:52:06,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:52:06,962 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:06,962 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] [2024-12-02 13:52:06,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:52:07,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:52:07,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:07,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:07,164 INFO L85 PathProgramCache]: Analyzing trace with hash 109782457, now seen corresponding path program 1 times [2024-12-02 13:52:07,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:07,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269536961] [2024-12-02 13:52:07,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:07,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:07,576 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 13:52:07,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:07,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269536961] [2024-12-02 13:52:07,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269536961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:07,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:07,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:52:07,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169491001] [2024-12-02 13:52:07,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:07,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:52:07,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:07,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:52:07,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:52:07,578 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 13:52:07,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:07,628 INFO L93 Difference]: Finished difference Result 95 states and 131 transitions. [2024-12-02 13:52:07,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:52:07,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 82 [2024-12-02 13:52:07,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:07,630 INFO L225 Difference]: With dead ends: 95 [2024-12-02 13:52:07,630 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 13:52:07,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:52:07,632 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 15 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:07,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 121 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 13:52:07,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2024-12-02 13:52:07,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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 13:52:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2024-12-02 13:52:07,641 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 82 [2024-12-02 13:52:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:07,642 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2024-12-02 13:52:07,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 13:52:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-12-02 13:52:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:52:07,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:07,645 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] [2024-12-02 13:52:07,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:52:07,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:07,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:07,645 INFO L85 PathProgramCache]: Analyzing trace with hash -19505799, now seen corresponding path program 1 times [2024-12-02 13:52:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613410170] [2024-12-02 13:52:07,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:07,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:07,734 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 13:52:07,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:52:07,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613410170] [2024-12-02 13:52:07,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613410170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:07,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:07,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:52:07,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555178847] [2024-12-02 13:52:07,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:07,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:07,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:52:07,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:07,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:07,736 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 13:52:07,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:07,765 INFO L93 Difference]: Finished difference Result 127 states and 175 transitions. [2024-12-02 13:52:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:07,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 82 [2024-12-02 13:52:07,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:07,767 INFO L225 Difference]: With dead ends: 127 [2024-12-02 13:52:07,767 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 13:52:07,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:07,768 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 28 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:07,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 116 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 13:52:07,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2024-12-02 13:52:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 13:52:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2024-12-02 13:52:07,782 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 82 [2024-12-02 13:52:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:07,782 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2024-12-02 13:52:07,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 13:52:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2024-12-02 13:52:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:52:07,784 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:07,784 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 13:52:07,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:52:07,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:07,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:07,785 INFO L85 PathProgramCache]: Analyzing trace with hash -636021362, now seen corresponding path program 1 times [2024-12-02 13:52:07,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:52:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466184844] [2024-12-02 13:52:07,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:07,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:52:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:52:07,877 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:52:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:52:07,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:52:07,942 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:52:07,942 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:52:07,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:52:07,946 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 13:52:07,988 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:52:07,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:52:07 BoogieIcfgContainer [2024-12-02 13:52:07,991 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:52:07,991 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:52:07,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:52:07,992 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:52:07,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:06" (3/4) ... [2024-12-02 13:52:07,994 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:52:07,994 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:52:07,995 INFO L158 Benchmark]: Toolchain (without parser) took 2282.15ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 66.0MB in the end (delta: 52.4MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-12-02 13:52:07,995 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:52:07,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.12ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 105.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:52:07,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.15ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:52:07,996 INFO L158 Benchmark]: Boogie Preprocessor took 38.62ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:52:07,996 INFO L158 Benchmark]: RCFGBuilder took 344.96ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 88.4MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:52:07,997 INFO L158 Benchmark]: TraceAbstraction took 1595.75ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 66.8MB in the end (delta: 21.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-12-02 13:52:07,997 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 142.6MB. Free memory was 66.8MB in the beginning and 66.0MB in the end (delta: 764.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:52:07,998 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 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.12ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 105.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.15ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.62ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 344.96ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 88.4MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1595.75ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 66.8MB in the end (delta: 21.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 142.6MB. Free memory was 66.8MB in the beginning and 66.0MB in the end (delta: 764.5kB). 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 60, overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someBinaryDOUBLEComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 81. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -128; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_6 = 1; [L25] signed char var_1_7 = 8; [L26] unsigned long int var_1_8 = 1; [L27] unsigned long int var_1_9 = 1885310857; [L28] signed long int var_1_10 = -10; [L29] double var_1_11 = 32.6; [L30] double var_1_12 = 9.75; [L31] double var_1_13 = 5.1; [L32] double var_1_14 = 128.1; [L33] double var_1_15 = 63.9; [L34] signed long int last_1_var_1_10 = -10; VAL [isInitial=0, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=1, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L95] isInitial = 1 [L96] FCALL initially() [L98] CALL updateLastVariables() [L88] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=1, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L98] RET updateLastVariables() [L99] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L67] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L68] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L68] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=8, var_1_8=1, var_1_9=1885310857] [L72] var_1_7 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1885310857] [L73] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1885310857] [L74] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1885310857] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1885310857] [L74] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1885310857] [L75] var_1_9 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_9 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L76] RET assume_abort_if_not(var_1_9 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L77] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L77] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_12=39/4, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L78] var_1_12 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L79] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_13=51/10, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L80] var_1_13 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L81] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_14=1281/10, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L82] var_1_14 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L83] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_15=639/10, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L84] var_1_15 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L85] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=1, var_1_9=1073741824] [L99] RET updateVariables() [L100] CALL step() [L38] COND TRUE \read(var_1_2) [L39] var_1_8 = ((1514707036u + ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))) - last_1_var_1_10) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-10, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L43] COND TRUE \read(var_1_2) [L44] var_1_10 = (var_1_8 + ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518424, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L46] unsigned char stepLocal_1 = var_1_2; [L47] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_10=-10, stepLocal_0=-1706518424, stepLocal_1=-255, var_1_10=-1706518424, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L48] COND TRUE stepLocal_1 || ((~ var_1_10) >= var_1_10) VAL [isInitial=1, last_1_var_1_10=-10, stepLocal_0=-1706518424, var_1_10=-1706518424, var_1_11=163/5, var_1_1=-128, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L49] COND FALSE !(stepLocal_0 < var_1_8) [L54] var_1_1 = 2 VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518424, var_1_11=163/5, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L59] COND TRUE var_1_1 >= var_1_1 [L60] var_1_11 = (var_1_12 - (((((var_1_13 + var_1_14)) > (var_1_15)) ? ((var_1_13 + var_1_14)) : (var_1_15)))) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518424, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L100] RET step() [L101] CALL, EXPR property() [L91-L92] return ((((var_1_2 || ((~ var_1_10) >= var_1_10)) ? ((var_1_10 < var_1_8) ? ((! var_1_6) ? (var_1_1 == ((signed char) var_1_7)) : 1) : (var_1_1 == ((signed char) 2))) : (var_1_1 == ((signed char) var_1_7))) && (var_1_2 ? (var_1_8 == ((unsigned long int) ((1514707036u + ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9)))) - last_1_var_1_10))) : (var_1_8 == ((unsigned long int) ((((last_1_var_1_10) > (var_1_9)) ? (last_1_var_1_10) : (var_1_9))))))) && (var_1_2 ? (var_1_10 == ((signed long int) (var_1_8 + ((((var_1_7) < 0 ) ? -(var_1_7) : (var_1_7)))))) : 1)) && ((var_1_1 >= var_1_1) ? (var_1_11 == ((double) (var_1_12 - (((((var_1_13 + var_1_14)) > (var_1_15)) ? ((var_1_13 + var_1_14)) : (var_1_15)))))) : (var_1_11 == ((double) ((((var_1_14) > (var_1_13)) ? (var_1_14) : (var_1_13)))))) ; VAL [\result=0, isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518424, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518424, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=-10, var_1_10=-1706518424, var_1_1=2, var_1_2=-255, var_1_6=1, var_1_7=2, var_1_8=2588448870, var_1_9=1073741824] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 186 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 411 NumberOfCodeBlocks, 411 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 461 SizeOfPredicates, 0 NumberOfNonLiveVariables, 201 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 13:52:08,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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_86c05c84-8300-4882-bfb8-e5a016f19759/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 f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:52:09,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:52:09,938 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:52:09,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:52:09,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:52:09,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:52:09,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:52:09,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:52:09,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:52:09,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:52:09,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:52:09,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:52:09,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:52:09,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:52:09,972 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:52:09,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:52:09,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:52:09,973 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:52:09,974 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:09,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:52:09,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:09,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:52:09,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:52:09,975 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_86c05c84-8300-4882-bfb8-e5a016f19759/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 -> f973169401bb1753394cb63d2104eadaf253c35457ff559a70aef9da15f26905 [2024-12-02 13:52:10,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:52:10,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:52:10,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:52:10,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:52:10,238 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:52:10,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-12-02 13:52:12,949 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/70bec3308/9dc59581b9cd4acc8bd7b402e3769fd2/FLAGa4e58eb47 [2024-12-02 13:52:13,133 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:52:13,133 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i [2024-12-02 13:52:13,141 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/70bec3308/9dc59581b9cd4acc8bd7b402e3769fd2/FLAGa4e58eb47 [2024-12-02 13:52:13,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/data/70bec3308/9dc59581b9cd4acc8bd7b402e3769fd2 [2024-12-02 13:52:13,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:52:13,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:52:13,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:52:13,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:52:13,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:52:13,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d37eaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13, skipping insertion in model container [2024-12-02 13:52:13,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:52:13,306 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_86c05c84-8300-4882-bfb8-e5a016f19759/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i[913,926] [2024-12-02 13:52:13,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:52:13,354 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:52:13,364 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_86c05c84-8300-4882-bfb8-e5a016f19759/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-15.i[913,926] [2024-12-02 13:52:13,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:52:13,393 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:52:13,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13 WrapperNode [2024-12-02 13:52:13,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:52:13,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:52:13,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:52:13,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:52:13,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,428 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-12-02 13:52:13,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:52:13,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:52:13,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:52:13,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:52:13,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,439 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,446 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 13:52:13,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:52:13,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:52:13,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:52:13,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:52:13,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (1/1) ... [2024-12-02 13:52:13,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:52:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:52:13,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:52:13,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:52:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:52:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:52:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:52:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:52:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:52:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:52:13,565 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:52:13,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:52:14,897 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-02 13:52:14,897 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:52:14,904 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:52:14,904 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:52:14,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:14 BoogieIcfgContainer [2024-12-02 13:52:14,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:52:14,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:52:14,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:52:14,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:52:14,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:52:13" (1/3) ... [2024-12-02 13:52:14,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db35210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:14, skipping insertion in model container [2024-12-02 13:52:14,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:52:13" (2/3) ... [2024-12-02 13:52:14,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db35210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:52:14, skipping insertion in model container [2024-12-02 13:52:14,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:52:14" (3/3) ... [2024-12-02 13:52:14,912 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-15.i [2024-12-02 13:52:14,923 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:52:14,924 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-15.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:52:14,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:52:14,970 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;@2ab8375e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:52:14,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:52:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 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 13:52:14,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:52:14,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:14,979 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] [2024-12-02 13:52:14,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:14,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:14,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1601258831, now seen corresponding path program 1 times [2024-12-02 13:52:14,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:52:14,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561449091] [2024-12-02 13:52:14,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:14,991 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 13:52:14,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:52:14,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:14,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:15,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:52:15,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:52:15,284 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 13:52:15,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:52:15,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:52:15,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561449091] [2024-12-02 13:52:15,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561449091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:15,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:15,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:52:15,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095150354] [2024-12-02 13:52:15,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:15,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:52:15,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:52:15,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:52:15,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:52:15,304 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 13:52:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:15,321 INFO L93 Difference]: Finished difference Result 85 states and 138 transitions. [2024-12-02 13:52:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:52:15,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 82 [2024-12-02 13:52:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:15,327 INFO L225 Difference]: With dead ends: 85 [2024-12-02 13:52:15,327 INFO L226 Difference]: Without dead ends: 42 [2024-12-02 13:52:15,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 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 13:52:15,331 INFO L435 NwaCegarLoop]: 58 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, 58 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 13:52:15,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:52:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-12-02 13:52:15,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-12-02 13:52:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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 13:52:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-12-02 13:52:15,359 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 82 [2024-12-02 13:52:15,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:15,359 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-12-02 13:52:15,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 13:52:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-12-02 13:52:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:52:15,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:15,362 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] [2024-12-02 13:52:15,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:15,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:15,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:15,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:15,563 INFO L85 PathProgramCache]: Analyzing trace with hash 109782457, now seen corresponding path program 1 times [2024-12-02 13:52:15,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:52:15,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997789895] [2024-12-02 13:52:15,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:15,564 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 13:52:15,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:52:15,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:15,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:15,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:52:15,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:52:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 13:52:16,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:52:16,319 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 13:52:16,320 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:52:16,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997789895] [2024-12-02 13:52:16,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997789895] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 13:52:16,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:52:16,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-12-02 13:52:16,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465843734] [2024-12-02 13:52:16,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:16,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:52:16,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:52:16,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:52:16,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:52:16,322 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 13:52:17,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:17,432 INFO L93 Difference]: Finished difference Result 95 states and 131 transitions. [2024-12-02 13:52:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:52:17,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 82 [2024-12-02 13:52:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:17,442 INFO L225 Difference]: With dead ends: 95 [2024-12-02 13:52:17,442 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 13:52:17,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:52:17,443 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 16 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:17,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 165 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:52:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 13:52:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2024-12-02 13:52:17,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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 13:52:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2024-12-02 13:52:17,448 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 82 [2024-12-02 13:52:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:17,449 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2024-12-02 13:52:17,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 13:52:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-12-02 13:52:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 13:52:17,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:17,450 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] [2024-12-02 13:52:17,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:17,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:17,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:17,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash -19505799, now seen corresponding path program 1 times [2024-12-02 13:52:17,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:52:17,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138252681] [2024-12-02 13:52:17,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:17,651 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 13:52:17,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:52:17,653 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:17,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:17,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:52:17,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:52:18,182 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 13:52:18,183 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:52:18,183 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:52:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138252681] [2024-12-02 13:52:18,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138252681] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:52:18,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:52:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:52:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949844560] [2024-12-02 13:52:18,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:52:18,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:52:18,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:52:18,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:52:18,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:52:18,185 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 13:52:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:52:19,027 INFO L93 Difference]: Finished difference Result 127 states and 175 transitions. [2024-12-02 13:52:19,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:52:19,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 82 [2024-12-02 13:52:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:52:19,030 INFO L225 Difference]: With dead ends: 127 [2024-12-02 13:52:19,030 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 13:52:19,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 13:52:19,031 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 13 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:52:19,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 116 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:52:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 13:52:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2024-12-02 13:52:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 13:52:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2024-12-02 13:52:19,045 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 82 [2024-12-02 13:52:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:52:19,046 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2024-12-02 13:52:19,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 13:52:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2024-12-02 13:52:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 13:52:19,047 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:52:19,047 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 13:52:19,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:19,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:19,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:52:19,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:52:19,249 INFO L85 PathProgramCache]: Analyzing trace with hash -636021362, now seen corresponding path program 1 times [2024-12-02 13:52:19,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:52:19,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114058881] [2024-12-02 13:52:19,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:52:19,249 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 13:52:19,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:52:19,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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 13:52:19,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c05c84-8300-4882-bfb8-e5a016f19759/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)] Waiting until timeout for monitored process [2024-12-02 13:52:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:52:19,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 13:52:19,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:53:40,626 WARN L286 SmtUtils]: Spent 35.49s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 14:04:40,516 WARN L286 SmtUtils]: Spent 13.47s on a formula simplification. DAG size of input: 2245 DAG size of output: 1667 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)