./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 3ad6401ee446a34982dd0c8d0ba268337aa0159c5f8a85e383082a041a6d1435 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:40:48,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:40:48,659 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:40:48,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:40:48,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:40:48,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:40:48,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:40:48,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:40:48,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:40:48,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:40:48,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:40:48,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:40:48,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:40:48,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:40:48,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:40:48,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:40:48,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:40:48,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:40:48,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:40:48,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:40:48,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:40:48,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:40:48,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:40:48,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:40:48,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:40:48,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:40:48,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:40:48,691 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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 -> 3ad6401ee446a34982dd0c8d0ba268337aa0159c5f8a85e383082a041a6d1435 [2024-12-02 07:40:48,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:40:48,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:40:48,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:40:48,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:40:48,952 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:40:48,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i [2024-12-02 07:40:51,798 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/973dbb68e/49033313c81a4ed4b0db6ce5ca0169d9/FLAGf7fb1de54 [2024-12-02 07:40:52,024 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:40:52,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i [2024-12-02 07:40:52,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/973dbb68e/49033313c81a4ed4b0db6ce5ca0169d9/FLAGf7fb1de54 [2024-12-02 07:40:52,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/973dbb68e/49033313c81a4ed4b0db6ce5ca0169d9 [2024-12-02 07:40:52,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:40:52,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:40:52,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:40:52,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:40:52,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:40:52,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a3ca7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52, skipping insertion in model container [2024-12-02 07:40:52,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:40:52,237 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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i[915,928] [2024-12-02 07:40:52,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:40:52,287 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:40:52,297 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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i[915,928] [2024-12-02 07:40:52,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:40:52,330 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:40:52,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52 WrapperNode [2024-12-02 07:40:52,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:40:52,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:40:52,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:40:52,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:40:52,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,369 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-12-02 07:40:52,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:40:52,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:40:52,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:40:52,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:40:52,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,395 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 07:40:52,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,399 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:40:52,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:40:52,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:40:52,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:40:52,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (1/1) ... [2024-12-02 07:40:52,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:40:52,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:40:52,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:40:52,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:40:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:40:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:40:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:40:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:40:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:40:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:40:52,543 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:40:52,546 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:40:52,729 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 07:40:52,729 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:40:52,739 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:40:52,739 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:40:52,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:52 BoogieIcfgContainer [2024-12-02 07:40:52,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:40:52,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:40:52,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:40:52,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:40:52,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:40:52" (1/3) ... [2024-12-02 07:40:52,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ee3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:40:52, skipping insertion in model container [2024-12-02 07:40:52,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:52" (2/3) ... [2024-12-02 07:40:52,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670ee3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:40:52, skipping insertion in model container [2024-12-02 07:40:52,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:52" (3/3) ... [2024-12-02 07:40:52,747 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-55.i [2024-12-02 07:40:52,758 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:40:52,759 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-55.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:40:52,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:40:52,811 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;@18ee2704, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:40:52,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:40:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:40:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:40:52,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:52,822 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:52,822 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:52,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash -93781093, now seen corresponding path program 1 times [2024-12-02 07:40:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:52,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562687409] [2024-12-02 07:40:52,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:52,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:40:53,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:40:53,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562687409] [2024-12-02 07:40:53,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562687409] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:40:53,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427600143] [2024-12-02 07:40:53,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:53,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:53,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:40:53,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:40:53,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:40:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:53,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:40:53,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:40:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:40:53,210 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:40:53,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427600143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:40:53,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:40:53,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:40:53,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143325589] [2024-12-02 07:40:53,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:40:53,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:40:53,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:40:53,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:40:53,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:40:53,242 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:40:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:53,267 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-12-02 07:40:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:40:53,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2024-12-02 07:40:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:53,276 INFO L225 Difference]: With dead ends: 95 [2024-12-02 07:40:53,276 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 07:40:53,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 07:40:53,282 INFO L435 NwaCegarLoop]: 68 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, 68 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 07:40:53,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:40:53,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 07:40:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 07:40:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:40:53,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-12-02 07:40:53,326 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 106 [2024-12-02 07:40:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:53,327 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-12-02 07:40:53,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:40:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-12-02 07:40:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:40:53,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:53,330 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:53,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:40:53,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:40:53,531 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:53,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:53,532 INFO L85 PathProgramCache]: Analyzing trace with hash 807760285, now seen corresponding path program 1 times [2024-12-02 07:40:53,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:40:53,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339613607] [2024-12-02 07:40:53,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:53,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:40:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:40:53,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906066209] [2024-12-02 07:40:53,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:53,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:53,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:40:53,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:40:53,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:40:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:40:53,853 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:40:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:40:53,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:40:53,943 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:40:53,944 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:40:53,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:40:54,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:40:54,148 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:40:54,197 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:40:54,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:40:54 BoogieIcfgContainer [2024-12-02 07:40:54,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:40:54,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:40:54,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:40:54,201 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:40:54,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:40:52" (3/4) ... [2024-12-02 07:40:54,204 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:40:54,204 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:40:54,205 INFO L158 Benchmark]: Toolchain (without parser) took 2151.98ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 49.2MB in the end (delta: 42.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-12-02 07:40:54,206 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:40:54,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.29ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.5MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:40:54,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.03ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:40:54,206 INFO L158 Benchmark]: Boogie Preprocessor took 38.44ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:40:54,207 INFO L158 Benchmark]: RCFGBuilder took 330.15ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 60.6MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:40:54,207 INFO L158 Benchmark]: TraceAbstraction took 1458.94ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 49.8MB in the end (delta: 10.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-12-02 07:40:54,207 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 117.4MB. Free memory was 49.2MB in the beginning and 49.2MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:40:54,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.29ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.5MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.03ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.44ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.15ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 60.6MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1458.94ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 49.8MB in the end (delta: 10.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 117.4MB. Free memory was 49.2MB in the beginning and 49.2MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryArithmeticFLOAToperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 25; [L27] unsigned short int var_1_8 = 5; [L28] unsigned short int var_1_9 = 1; [L29] signed char var_1_12 = 1; [L30] float var_1_13 = 127.75; [L31] float var_1_14 = 0.0; [L32] float var_1_15 = 255.7; [L33] float var_1_16 = 7.6; [L34] unsigned long int var_1_17 = 64; [L35] signed long int var_1_18 = 0; VAL [isInitial=0, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L102] isInitial = 1 [L103] FCALL initially() [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L74] var_1_6 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L76] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=5, var_1_9=1] [L77] var_1_8 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_8 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L79] RET assume_abort_if_not(var_1_8 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L80] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L81] var_1_9 = __VERIFIER_nondet_ushort() [L82] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L82] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L83] CALL assume_abort_if_not(var_1_9 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L83] RET assume_abort_if_not(var_1_9 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535] [L84] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L84] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L85] var_1_12 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L86] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L87] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L88] var_1_14 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L89] RET assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L90] var_1_15 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L91] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L92] var_1_16 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L93] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L106] RET updateVariables() [L107] CALL step() [L39] var_1_13 = ((var_1_14 - var_1_15) - var_1_16) [L40] var_1_17 = var_1_6 [L41] var_1_18 = var_1_9 [L42] unsigned short int stepLocal_3 = var_1_9; [L43] unsigned long int stepLocal_2 = var_1_17; VAL [isInitial=1, stepLocal_2=1, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=25, var_1_8=65535, var_1_9=1] [L44] COND FALSE !(stepLocal_2 <= ((var_1_17 / var_1_8) / var_1_9)) [L51] var_1_7 = var_1_12 VAL [isInitial=1, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L53] signed char stepLocal_1 = var_1_7; [L54] unsigned char stepLocal_0 = var_1_7 >= var_1_7; VAL [isInitial=1, stepLocal_0=1, stepLocal_1=-127, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L55] COND FALSE !(\read(var_1_2)) [L64] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=1, stepLocal_1=-127, stepLocal_3=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((var_1_2 ? (((var_1_7 >= var_1_7) && var_1_5) ? ((var_1_7 >= var_1_7) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) var_1_6))) : 1) : (var_1_1 == ((unsigned short int) var_1_6))) && ((var_1_17 <= ((var_1_17 / var_1_8) / var_1_9)) ? ((var_1_9 == (var_1_18 * (~ var_1_18))) ? (var_1_7 == ((signed char) var_1_12)) : (var_1_7 == ((signed char) var_1_12))) : (var_1_7 == ((signed char) var_1_12)))) && (var_1_13 == ((float) ((var_1_14 - var_1_15) - var_1_16)))) && (var_1_17 == ((unsigned long int) var_1_6))) && (var_1_18 == ((signed long int) var_1_9)) ; VAL [\result=0, isInitial=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_12=-127, var_1_17=1, var_1_18=1, var_1_1=1, var_1_2=0, var_1_5=1, var_1_6=1, var_1_7=-127, var_1_8=65535, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 68 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 250 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1056/1088 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 07:40:54,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 3ad6401ee446a34982dd0c8d0ba268337aa0159c5f8a85e383082a041a6d1435 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:40:56,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:40:56,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:40:56,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:40:56,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:40:56,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:40:56,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:40:56,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:40:56,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:40:56,342 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:40:56,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:40:56,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:40:56,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:40:56,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:40:56,343 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:40:56,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:40:56,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:40:56,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:40:56,344 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:40:56,344 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:40:56,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:40:56,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:40:56,345 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:40:56,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:40:56,346 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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 -> 3ad6401ee446a34982dd0c8d0ba268337aa0159c5f8a85e383082a041a6d1435 [2024-12-02 07:40:56,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:40:56,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:40:56,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:40:56,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:40:56,620 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:40:56,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i [2024-12-02 07:40:59,485 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/6eed5e45b/3934f9e838204874ac45f94c6e354dbb/FLAGdc43b71af [2024-12-02 07:40:59,703 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:40:59,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i [2024-12-02 07:40:59,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/6eed5e45b/3934f9e838204874ac45f94c6e354dbb/FLAGdc43b71af [2024-12-02 07:40:59,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/data/6eed5e45b/3934f9e838204874ac45f94c6e354dbb [2024-12-02 07:40:59,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:40:59,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:40:59,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:40:59,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:40:59,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:40:59,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:59" (1/1) ... [2024-12-02 07:40:59,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b46b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:40:59, skipping insertion in model container [2024-12-02 07:40:59,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:40:59" (1/1) ... [2024-12-02 07:40:59,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:40:59,915 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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i[915,928] [2024-12-02 07:40:59,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:40:59,972 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:40:59,984 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_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-55.i[915,928] [2024-12-02 07:41:00,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:41:00,020 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:41:00,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00 WrapperNode [2024-12-02 07:41:00,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:41:00,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:41:00,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:41:00,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:41:00,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,057 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-12-02 07:41:00,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:41:00,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:41:00,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:41:00,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:41:00,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,080 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 07:41:00,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,087 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:41:00,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:41:00,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:41:00,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:41:00,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (1/1) ... [2024-12-02 07:41:00,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:41:00,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:41:00,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:41:00,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:41:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:41:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:41:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:41:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:41:00,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:41:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:41:00,219 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:41:00,221 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:41:01,080 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 07:41:01,080 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:41:01,089 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:41:01,089 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:41:01,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:41:01 BoogieIcfgContainer [2024-12-02 07:41:01,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:41:01,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:41:01,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:41:01,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:41:01,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:40:59" (1/3) ... [2024-12-02 07:41:01,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d73c15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:41:01, skipping insertion in model container [2024-12-02 07:41:01,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:41:00" (2/3) ... [2024-12-02 07:41:01,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d73c15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:41:01, skipping insertion in model container [2024-12-02 07:41:01,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:41:01" (3/3) ... [2024-12-02 07:41:01,096 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-55.i [2024-12-02 07:41:01,107 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:41:01,108 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-55.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:41:01,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:41:01,157 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;@13b76f63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:41:01,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:41:01,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:41:01,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:41:01,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:41:01,168 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:01,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:41:01,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:41:01,172 INFO L85 PathProgramCache]: Analyzing trace with hash -93781093, now seen corresponding path program 1 times [2024-12-02 07:41:01,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:41:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534126623] [2024-12-02 07:41:01,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:41:01,181 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 07:41:01,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:41:01,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:41:01,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:41:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:41:01,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:41:01,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:41:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-12-02 07:41:01,477 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:41:01,478 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:41:01,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534126623] [2024-12-02 07:41:01,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534126623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:41:01,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:41:01,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:41:01,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230222414] [2024-12-02 07:41:01,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:41:01,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:41:01,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:41:01,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:41:01,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:41:01,499 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:41:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:41:01,519 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-12-02 07:41:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:41:01,520 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2024-12-02 07:41:01,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:41:01,524 INFO L225 Difference]: With dead ends: 95 [2024-12-02 07:41:01,524 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 07:41:01,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 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 07:41:01,529 INFO L435 NwaCegarLoop]: 68 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, 68 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 07:41:01,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:41:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 07:41:01,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-12-02 07:41:01,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:41:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-12-02 07:41:01,560 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 106 [2024-12-02 07:41:01,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:41:01,560 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-12-02 07:41:01,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:41:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-12-02 07:41:01,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 07:41:01,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:41:01,563 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:01,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:41:01,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:41:01,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:41:01,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:41:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 807760285, now seen corresponding path program 1 times [2024-12-02 07:41:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:41:01,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553842851] [2024-12-02 07:41:01,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:41:01,766 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 07:41:01,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:41:01,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:41:01,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:41:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:41:02,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 07:41:02,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:41:43,250 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:41:50,748 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 07:41:50,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:41:50,748 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:41:50,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553842851] [2024-12-02 07:41:50,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553842851] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:41:50,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:41:50,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:41:50,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703528794] [2024-12-02 07:41:50,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:41:50,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:41:50,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:41:50,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:41:50,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:41:50,751 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:41:56,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 07:42:04,891 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:42:11,916 WARN L286 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:42:23,354 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:42:41,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:42:41,215 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2024-12-02 07:42:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:42:41,216 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 106 [2024-12-02 07:42:41,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:42:41,217 INFO L225 Difference]: With dead ends: 99 [2024-12-02 07:42:41,217 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 07:42:41,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:42:41,218 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 90 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:42:41,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 344 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2024-12-02 07:42:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 07:42:41,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2024-12-02 07:42:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:42:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-12-02 07:42:41,230 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 106 [2024-12-02 07:42:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:42:41,230 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-12-02 07:42:41,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 15 states have internal predecessors, (33), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:42:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-12-02 07:42:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 07:42:41,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:42:41,231 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:41,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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)] Forceful destruction successful, exit code 0 [2024-12-02 07:42:41,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:42:41,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:42:41,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:42:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1134723106, now seen corresponding path program 1 times [2024-12-02 07:42:41,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:42:41,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752280755] [2024-12-02 07:42:41,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:42:41,433 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 07:42:41,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:42:41,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:42:41,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:42:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:42:41,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 07:42:41,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:43:42,689 WARN L286 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:43:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 07:43:55,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:43:55,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:43:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752280755] [2024-12-02 07:43:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752280755] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:43:55,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:43:55,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:43:55,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562769082] [2024-12-02 07:43:55,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:43:55,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:43:55,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:43:55,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:43:55,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:43:55,699 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 17 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:44:10,199 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:44:18,133 WARN L286 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:44:47,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:44:47,806 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions. [2024-12-02 07:44:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 07:44:47,807 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 17 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 107 [2024-12-02 07:44:47,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:44:47,809 INFO L225 Difference]: With dead ends: 102 [2024-12-02 07:44:47,809 INFO L226 Difference]: Without dead ends: 100 [2024-12-02 07:44:47,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 72.4s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:44:47,810 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 56 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:44:47,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 341 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2024-12-02 07:44:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-12-02 07:44:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2024-12-02 07:44:47,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:44:47,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-12-02 07:44:47,827 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 107 [2024-12-02 07:44:47,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:44:47,827 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-12-02 07:44:47,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 17 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:44:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-12-02 07:44:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 07:44:47,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:47,829 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:47,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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)] Forceful destruction successful, exit code 0 [2024-12-02 07:44:48,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:44:48,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:48,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1055008782, now seen corresponding path program 1 times [2024-12-02 07:44:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:44:48,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031082620] [2024-12-02 07:44:48,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:48,031 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 07:44:48,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:44:48,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:44:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:44:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:48,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 07:44:48,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:45:10,985 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:45:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 07:45:51,400 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:45:51,400 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:45:51,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031082620] [2024-12-02 07:45:51,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031082620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:51,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:51,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:45:51,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240549225] [2024-12-02 07:45:51,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:51,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:45:51,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:45:51,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:45:51,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:45:51,402 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:46:09,122 WARN L286 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:46:17,221 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:46:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:48,265 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2024-12-02 07:46:48,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 07:46:48,266 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 108 [2024-12-02 07:46:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:48,267 INFO L225 Difference]: With dead ends: 108 [2024-12-02 07:46:48,267 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 07:46:48,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 62.9s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:46:48,268 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 70 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:48,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 398 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 23.3s Time] [2024-12-02 07:46:48,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 07:46:48,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 87. [2024-12-02 07:46:48,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 07:46:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2024-12-02 07:46:48,277 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 108 [2024-12-02 07:46:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:48,278 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2024-12-02 07:46:48,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 16 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:46:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2024-12-02 07:46:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 07:46:48,280 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:48,280 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:48,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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)] Forceful destruction successful, exit code 0 [2024-12-02 07:46:48,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:46:48,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:48,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1053161740, now seen corresponding path program 1 times [2024-12-02 07:46:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:46:48,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658983008] [2024-12-02 07:46:48,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:48,481 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 07:46:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:46:48,483 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:46:48,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 07:46:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:48,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:46:48,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:46:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:46:48,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:46:48,700 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:46:48,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658983008] [2024-12-02 07:46:48,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658983008] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:48,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:48,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:46:48,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993912341] [2024-12-02 07:46:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:48,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:48,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:46:48,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:48,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:48,702 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:46:49,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:49,556 INFO L93 Difference]: Finished difference Result 146 states and 194 transitions. [2024-12-02 07:46:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:49,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-12-02 07:46:49,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:49,558 INFO L225 Difference]: With dead ends: 146 [2024-12-02 07:46:49,558 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 07:46:49,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 07:46:49,559 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:49,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:46:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 07:46:49,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 07:46:49,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 07:46:49,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-12-02 07:46:49,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:49,561 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 07:46:49,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:46:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 07:46:49,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 07:46:49,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:46:49,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 07:46:49,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/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 07:46:49,766 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 07:46:49,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 07:47:02,355 WARN L286 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 108 DAG size of output: 8 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 07:47:14,767 WARN L286 SmtUtils]: Spent 12.31s on a formula simplification. DAG size of input: 106 DAG size of output: 3 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 07:47:14,770 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:47:14,779 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 07:47:14,779 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 07:47:14,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:47:14 BoogieIcfgContainer [2024-12-02 07:47:14,781 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:47:14,781 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:47:14,781 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:47:14,781 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:47:14,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:41:01" (3/4) ... [2024-12-02 07:47:14,783 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:47:14,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 07:47:14,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 07:47:14,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 07:47:14,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 07:47:14,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:47:14,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:47:14,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:47:14,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:47:14,867 INFO L158 Benchmark]: Toolchain (without parser) took 375133.81ms. Allocated memory was 92.3MB in the beginning and 276.8MB in the end (delta: 184.5MB). Free memory was 69.5MB in the beginning and 203.7MB in the end (delta: -134.2MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-12-02 07:47:14,867 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:47:14,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.25ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 56.3MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:47:14,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.30ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 54.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:47:14,868 INFO L158 Benchmark]: Boogie Preprocessor took 39.28ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:47:14,868 INFO L158 Benchmark]: RCFGBuilder took 992.14ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 67.7MB in the end (delta: -15.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-02 07:47:14,868 INFO L158 Benchmark]: TraceAbstraction took 373689.86ms. Allocated memory was 92.3MB in the beginning and 276.8MB in the end (delta: 184.5MB). Free memory was 67.1MB in the beginning and 212.0MB in the end (delta: -145.0MB). Peak memory consumption was 153.8MB. Max. memory is 16.1GB. [2024-12-02 07:47:14,869 INFO L158 Benchmark]: Witness Printer took 85.19ms. Allocated memory is still 276.8MB. Free memory was 212.0MB in the beginning and 203.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:47:14,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.25ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 56.3MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.30ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 54.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.28ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 992.14ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 67.7MB in the end (delta: -15.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 373689.86ms. Allocated memory was 92.3MB in the beginning and 276.8MB in the end (delta: 184.5MB). Free memory was 67.1MB in the beginning and 212.0MB in the end (delta: -145.0MB). Peak memory consumption was 153.8MB. Max. memory is 16.1GB. * Witness Printer took 85.19ms. Allocated memory is still 276.8MB. Free memory was 212.0MB in the beginning and 203.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 348.6s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 160.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 58.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 218 mSDsluCounter, 1267 SdHoareTripleChecker+Invalid, 57.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 931 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1923 IncrementalHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 336 mSDtfsCounter, 1923 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 191.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=2, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 185.9s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 530 ConstructedInterpolants, 0 QuantifiedInterpolants, 2737 SizeOfPredicates, 43 NumberOfNonLiveVariables, 886 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 07:47:14,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00a72e4-b44b-4dcb-b4c1-4c38a84b7956/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE