./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.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_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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_c6614356-e61e-4613-8634-be1f95f710db/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 55e583a0a9f7f2653eed51c0b81d821a7cc045000a63c3ac74a8989888b39b3b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:03:34,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:03:34,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:03:34,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:03:34,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:03:34,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:03:34,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:03:34,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:03:34,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:03:34,201 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:03:34,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:03:34,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:03:34,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:03:34,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:03:34,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:03:34,203 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:03:34,203 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:03:34,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:03:34,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:03:34,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:03:34,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:03:34,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:03:34,205 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_c6614356-e61e-4613-8634-be1f95f710db/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 -> 55e583a0a9f7f2653eed51c0b81d821a7cc045000a63c3ac74a8989888b39b3b [2024-12-02 12:03:34,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:03:34,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:03:34,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:03:34,461 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:03:34,461 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:03:34,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i [2024-12-02 12:03:37,114 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/8a6539451/4c67763bf1344f5da83916d150d95570/FLAG3d9d44107 [2024-12-02 12:03:37,319 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:03:37,319 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i [2024-12-02 12:03:37,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/8a6539451/4c67763bf1344f5da83916d150d95570/FLAG3d9d44107 [2024-12-02 12:03:37,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/8a6539451/4c67763bf1344f5da83916d150d95570 [2024-12-02 12:03:37,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:03:37,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:03:37,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:03:37,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:03:37,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:03:37,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bd9f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37, skipping insertion in model container [2024-12-02 12:03:37,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:03:37,470 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_c6614356-e61e-4613-8634-be1f95f710db/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i[917,930] [2024-12-02 12:03:37,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:03:37,520 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:03:37,528 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_c6614356-e61e-4613-8634-be1f95f710db/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i[917,930] [2024-12-02 12:03:37,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:03:37,563 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:03:37,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37 WrapperNode [2024-12-02 12:03:37,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:03:37,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:03:37,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:03:37,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:03:37,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,604 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2024-12-02 12:03:37,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:03:37,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:03:37,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:03:37,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:03:37,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,628 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 12:03:37,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,634 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:03:37,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:03:37,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:03:37,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:03:37,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (1/1) ... [2024-12-02 12:03:37,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:03:37,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:03:37,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:03:37,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:03:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:03:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:03:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:03:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:03:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:03:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:03:37,750 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:03:37,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:03:38,025 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-02 12:03:38,025 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:03:38,034 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:03:38,034 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:03:38,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:03:38 BoogieIcfgContainer [2024-12-02 12:03:38,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:03:38,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:03:38,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:03:38,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:03:38,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:03:37" (1/3) ... [2024-12-02 12:03:38,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2503d077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:03:38, skipping insertion in model container [2024-12-02 12:03:38,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:37" (2/3) ... [2024-12-02 12:03:38,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2503d077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:03:38, skipping insertion in model container [2024-12-02 12:03:38,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:03:38" (3/3) ... [2024-12-02 12:03:38,043 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-64.i [2024-12-02 12:03:38,053 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:03:38,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-64.i that has 2 procedures, 68 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:03:38,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:03:38,106 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;@7bddc391, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:03:38,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:03:38,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 45 states have (on average 1.4) internal successors, (63), 46 states have internal predecessors, (63), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:03:38,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:03:38,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:38,118 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:38,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:03:38,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash 245606244, now seen corresponding path program 1 times [2024-12-02 12:03:38,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:38,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316667994] [2024-12-02 12:03:38,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:38,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-12-02 12:03:38,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:38,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316667994] [2024-12-02 12:03:38,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316667994] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:03:38,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739160859] [2024-12-02 12:03:38,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:38,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:03:38,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:03:38,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:03:38,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:03:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:38,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:03:38,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:03:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-12-02 12:03:38,528 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:03:38,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739160859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:38,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:03:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:03:38,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882823469] [2024-12-02 12:03:38,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:38,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:03:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:38,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:03:38,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:03:38,550 INFO L87 Difference]: Start difference. First operand has 68 states, 45 states have (on average 1.4) internal successors, (63), 46 states have internal predecessors, (63), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:03:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:38,574 INFO L93 Difference]: Finished difference Result 129 states and 220 transitions. [2024-12-02 12:03:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:03:38,576 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2024-12-02 12:03:38,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:38,582 INFO L225 Difference]: With dead ends: 129 [2024-12-02 12:03:38,582 INFO L226 Difference]: Without dead ends: 64 [2024-12-02 12:03:38,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 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 12:03:38,587 INFO L435 NwaCegarLoop]: 96 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, 96 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 12:03:38,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:03:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-12-02 12:03:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-12-02 12:03:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:03:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 96 transitions. [2024-12-02 12:03:38,622 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 96 transitions. Word has length 128 [2024-12-02 12:03:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:38,622 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 96 transitions. [2024-12-02 12:03:38,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:03:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 96 transitions. [2024-12-02 12:03:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:03:38,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:38,625 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:38,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:03:38,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:03:38,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:03:38,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash 465464880, now seen corresponding path program 1 times [2024-12-02 12:03:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:38,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462347733] [2024-12-02 12:03:38,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:38,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 12:03:40,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462347733] [2024-12-02 12:03:40,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462347733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:40,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:03:40,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:03:40,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555480819] [2024-12-02 12:03:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:40,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:03:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:40,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:03:40,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:03:40,412 INFO L87 Difference]: Start difference. First operand 64 states and 96 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:03:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:41,928 INFO L93 Difference]: Finished difference Result 318 states and 465 transitions. [2024-12-02 12:03:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 12:03:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2024-12-02 12:03:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:41,932 INFO L225 Difference]: With dead ends: 318 [2024-12-02 12:03:41,932 INFO L226 Difference]: Without dead ends: 257 [2024-12-02 12:03:41,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-12-02 12:03:41,934 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 341 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:03:41,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 604 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:03:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-12-02 12:03:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 75. [2024-12-02 12:03:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 53 states have internal predecessors, (73), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:03:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 113 transitions. [2024-12-02 12:03:41,952 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 113 transitions. Word has length 128 [2024-12-02 12:03:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:41,954 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 113 transitions. [2024-12-02 12:03:41,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:03:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 113 transitions. [2024-12-02 12:03:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 12:03:41,956 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:41,956 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:41,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:03:41,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:03:41,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1166529458, now seen corresponding path program 1 times [2024-12-02 12:03:41,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:41,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142516450] [2024-12-02 12:03:41,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:41,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-12-02 12:03:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142516450] [2024-12-02 12:03:42,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142516450] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:03:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672326325] [2024-12-02 12:03:42,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:42,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:03:42,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:03:42,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:03:42,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:03:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:42,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:03:42,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:03:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 429 proven. 39 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-02 12:03:43,433 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:03:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 69 proven. 42 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-12-02 12:03:44,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672326325] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:03:44,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:03:44,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 27 [2024-12-02 12:03:44,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765678924] [2024-12-02 12:03:44,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:03:44,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 12:03:44,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:44,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 12:03:44,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-12-02 12:03:44,375 INFO L87 Difference]: Start difference. First operand 75 states and 113 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 8 states have call successors, (60), 4 states have call predecessors, (60), 9 states have return successors, (60), 8 states have call predecessors, (60), 8 states have call successors, (60) [2024-12-02 12:03:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:45,786 INFO L93 Difference]: Finished difference Result 255 states and 364 transitions. [2024-12-02 12:03:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-12-02 12:03:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 8 states have call successors, (60), 4 states have call predecessors, (60), 9 states have return successors, (60), 8 states have call predecessors, (60), 8 states have call successors, (60) Word has length 128 [2024-12-02 12:03:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:45,789 INFO L225 Difference]: With dead ends: 255 [2024-12-02 12:03:45,789 INFO L226 Difference]: Without dead ends: 183 [2024-12-02 12:03:45,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=599, Invalid=2157, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 12:03:45,792 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 566 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:03:45,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 841 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:03:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-12-02 12:03:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 131. [2024-12-02 12:03:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 83 states have (on average 1.180722891566265) internal successors, (98), 83 states have internal predecessors, (98), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:03:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 178 transitions. [2024-12-02 12:03:45,818 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 178 transitions. Word has length 128 [2024-12-02 12:03:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:45,819 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 178 transitions. [2024-12-02 12:03:45,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 8 states have call successors, (60), 4 states have call predecessors, (60), 9 states have return successors, (60), 8 states have call predecessors, (60), 8 states have call successors, (60) [2024-12-02 12:03:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 178 transitions. [2024-12-02 12:03:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 12:03:45,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:45,821 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:45,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:03:46,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:03:46,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:03:46,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:46,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1286547333, now seen corresponding path program 1 times [2024-12-02 12:03:46,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:46,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678605132] [2024-12-02 12:03:46,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:46,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:03:46,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191600427] [2024-12-02 12:03:46,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:46,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:03:46,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:03:46,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:03:46,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:03:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:03:46,334 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 12:03:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:03:46,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 12:03:46,440 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 12:03:46,441 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:03:46,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:03:46,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:03:46,645 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 12:03:46,697 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:03:46,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:03:46 BoogieIcfgContainer [2024-12-02 12:03:46,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:03:46,701 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:03:46,701 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:03:46,701 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:03:46,702 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:03:38" (3/4) ... [2024-12-02 12:03:46,704 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 12:03:46,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:03:46,705 INFO L158 Benchmark]: Toolchain (without parser) took 9358.28ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 117.4MB in the beginning and 181.6MB in the end (delta: -64.1MB). Peak memory consumption was 124.5MB. Max. memory is 16.1GB. [2024-12-02 12:03:46,706 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:03:46,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.66ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 104.4MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:03:46,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.76ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 101.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:03:46,706 INFO L158 Benchmark]: Boogie Preprocessor took 40.16ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 99.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:03:46,707 INFO L158 Benchmark]: RCFGBuilder took 389.67ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 79.2MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:03:46,707 INFO L158 Benchmark]: TraceAbstraction took 8663.37ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 78.7MB in the beginning and 181.6MB in the end (delta: -102.9MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2024-12-02 12:03:46,707 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 335.5MB. Free memory was 181.6MB in the beginning and 181.6MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:03:46,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.66ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 104.4MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.76ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 101.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.16ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 99.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.67ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 79.2MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8663.37ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 78.7MB in the beginning and 181.6MB in the end (delta: -102.9MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 335.5MB. Free memory was 181.6MB in the beginning and 181.6MB in the end (delta: 45.2kB). 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 83, overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someBinaryFLOATComparisonOperation at line 85, overapproximation of someBinaryFLOATComparisonOperation at line 87, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] unsigned long int var_1_2 = 128; [L24] unsigned long int var_1_3 = 2941876006; [L25] unsigned long int var_1_5 = 256; [L26] float var_1_6 = 63.5; [L27] float var_1_7 = -0.151; [L28] float var_1_8 = 0.8; [L29] double var_1_9 = 9.5; [L30] unsigned char var_1_10 = 0; [L31] unsigned char var_1_11 = 0; [L32] unsigned char var_1_12 = 0; [L33] signed short int var_1_13 = -2; [L34] unsigned char var_1_16 = 10; [L35] unsigned short int var_1_17 = 8; [L36] unsigned char var_1_18 = 16; [L37] unsigned char last_1_var_1_16 = 10; VAL [isInitial=0, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_2=128, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L112] isInitial = 1 [L113] FCALL initially() [L115] CALL updateLastVariables() [L105] last_1_var_1_16 = var_1_16 VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_2=128, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L115] RET updateLastVariables() [L116] CALL updateVariables() [L72] var_1_2 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L73] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L74] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L74] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=2941876006, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L75] var_1_3 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L76] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L77] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L77] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=256, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L78] var_1_5 = __VERIFIER_nondet_ulong() [L79] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L79] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L80] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L80] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L81] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L81] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_6=127/2, var_1_8=4/5, var_1_9=19/2] [L82] var_1_6 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_8=4/5, var_1_9=19/2] [L83] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_8=4/5, var_1_9=19/2] [L84] var_1_7 = __VERIFIER_nondet_float() [L85] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_8=4/5, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_8=4/5, var_1_9=19/2] [L85] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_8=4/5, var_1_9=19/2] [L86] var_1_8 = __VERIFIER_nondet_float() [L87] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_9=19/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_9=19/2] [L87] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12, var_1_9=19/2] [L88] var_1_9 = __VERIFIER_nondet_double() [L89] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L89] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L90] var_1_11 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L91] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L92] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L92] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=0, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L93] var_1_12 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L94] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L95] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L95] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=8, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L96] var_1_17 = __VERIFIER_nondet_ushort() [L97] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L97] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L98] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L98] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L99] CALL assume_abort_if_not(var_1_17 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L99] RET assume_abort_if_not(var_1_17 != 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=16, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L100] var_1_18 = __VERIFIER_nondet_uchar() [L101] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L101] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L102] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L102] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L116] RET updateVariables() [L117] CALL step() [L41] signed long int stepLocal_1 = last_1_var_1_16; [L42] unsigned long int stepLocal_0 = var_1_3; VAL [isInitial=1, last_1_var_1_16=10, stepLocal_0=-6442450945, stepLocal_1=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L43] COND TRUE stepLocal_1 <= (var_1_3 - last_1_var_1_16) VAL [isInitial=1, last_1_var_1_16=10, stepLocal_0=-6442450945, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=9/10, var_1_3=-6442450945, var_1_5=12] [L44] COND FALSE !(stepLocal_0 < (((((last_1_var_1_16 / var_1_5)) > (last_1_var_1_16)) ? ((last_1_var_1_16 / var_1_5)) : (last_1_var_1_16)))) [L49] var_1_1 = var_1_9 VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=2, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L52] COND TRUE var_1_1 < var_1_1 [L53] var_1_10 = (! (var_1_11 && var_1_12)) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=2, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L55] EXPR var_1_2 & (var_1_5 / var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=10, var_1_17=14, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L55] unsigned long int stepLocal_2 = var_1_2 & (var_1_5 / var_1_17); [L56] COND FALSE !(stepLocal_2 > var_1_3) [L63] var_1_16 = var_1_18 VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=0, var_1_17=14, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L65] COND FALSE !(\read(var_1_10)) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=0, var_1_17=14, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L117] RET step() [L118] CALL, EXPR property() [L108] EXPR ((((last_1_var_1_16 <= (var_1_3 - last_1_var_1_16)) ? ((var_1_3 < (((((last_1_var_1_16 / var_1_5)) > (last_1_var_1_16)) ? ((last_1_var_1_16 / var_1_5)) : (last_1_var_1_16)))) ? (((var_1_6 + var_1_7) > var_1_8) ? (var_1_1 == ((double) var_1_9)) : 1) : (var_1_1 == ((double) var_1_9))) : 1) && ((var_1_1 < var_1_1) ? (var_1_10 == ((unsigned char) (! (var_1_11 && var_1_12)))) : 1)) && (var_1_10 ? ((var_1_12 || (var_1_1 < (var_1_1 * var_1_1))) ? (var_1_13 == ((signed short int) (var_1_16 + var_1_16))) : 1) : 1)) && (((var_1_2 & (var_1_5 / var_1_17)) > var_1_3) ? ((! var_1_10) ? (var_1_16 == ((unsigned char) var_1_18)) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_18))) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=0, var_1_17=14, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L108-L109] return ((((last_1_var_1_16 <= (var_1_3 - last_1_var_1_16)) ? ((var_1_3 < (((((last_1_var_1_16 / var_1_5)) > (last_1_var_1_16)) ? ((last_1_var_1_16 / var_1_5)) : (last_1_var_1_16)))) ? (((var_1_6 + var_1_7) > var_1_8) ? (var_1_1 == ((double) var_1_9)) : 1) : (var_1_1 == ((double) var_1_9))) : 1) && ((var_1_1 < var_1_1) ? (var_1_10 == ((unsigned char) (! (var_1_11 && var_1_12)))) : 1)) && (var_1_10 ? ((var_1_12 || (var_1_1 < (var_1_1 * var_1_1))) ? (var_1_13 == ((signed short int) (var_1_16 + var_1_16))) : 1) : 1)) && (((var_1_2 & (var_1_5 / var_1_17)) > var_1_3) ? ((! var_1_10) ? (var_1_16 == ((unsigned char) var_1_18)) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_18))) ; [L118] RET, EXPR property() [L118] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=0, var_1_17=14, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=-6442450945, var_1_5=12, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_16=10, var_1_10=0, var_1_11=1, var_1_12=1, var_1_13=-2, var_1_16=0, var_1_17=14, var_1_18=0, var_1_1=2, var_1_2=0, var_1_3=-6442450945, var_1_5=12, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 4, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 918 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 907 mSDsluCounter, 1541 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1246 mSDsCounter, 311 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1214 IncrementalHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 311 mSolverCounterUnsat, 295 mSDtfsCounter, 1214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 448 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 61, 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, 3 MinimizatonAttempts, 234 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 898 NumberOfCodeBlocks, 898 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 3173 SizeOfPredicates, 10 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4390/4560 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 12:03:46,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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_c6614356-e61e-4613-8634-be1f95f710db/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 55e583a0a9f7f2653eed51c0b81d821a7cc045000a63c3ac74a8989888b39b3b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:03:48,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:03:48,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 12:03:48,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:03:48,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:03:48,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:03:48,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:03:48,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:03:48,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:03:48,760 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:03:48,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:03:48,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:03:48,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:03:48,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:03:48,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 12:03:48,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:03:48,762 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:03:48,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:03:48,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:03:48,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 12:03:48,763 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 12:03:48,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:03:48,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:03:48,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:03:48,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:03:48,764 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_c6614356-e61e-4613-8634-be1f95f710db/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 -> 55e583a0a9f7f2653eed51c0b81d821a7cc045000a63c3ac74a8989888b39b3b [2024-12-02 12:03:48,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:03:49,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:03:49,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:03:49,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:03:49,007 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:03:49,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i [2024-12-02 12:03:51,787 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/7a58fd08a/d77d78c6d4844116accb0feaee86a454/FLAG82866c121 [2024-12-02 12:03:51,976 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:03:51,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i [2024-12-02 12:03:51,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/7a58fd08a/d77d78c6d4844116accb0feaee86a454/FLAG82866c121 [2024-12-02 12:03:51,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/data/7a58fd08a/d77d78c6d4844116accb0feaee86a454 [2024-12-02 12:03:51,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:03:52,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:03:52,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:03:52,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:03:52,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:03:52,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:03:51" (1/1) ... [2024-12-02 12:03:52,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5506c4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52, skipping insertion in model container [2024-12-02 12:03:52,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:03:51" (1/1) ... [2024-12-02 12:03:52,020 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:03:52,126 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_c6614356-e61e-4613-8634-be1f95f710db/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i[917,930] [2024-12-02 12:03:52,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:03:52,179 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:03:52,189 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_c6614356-e61e-4613-8634-be1f95f710db/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-64.i[917,930] [2024-12-02 12:03:52,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:03:52,221 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:03:52,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52 WrapperNode [2024-12-02 12:03:52,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:03:52,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:03:52,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:03:52,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:03:52,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,257 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2024-12-02 12:03:52,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:03:52,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:03:52,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:03:52,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:03:52,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,281 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 12:03:52,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,290 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:03:52,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:03:52,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:03:52,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:03:52,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (1/1) ... [2024-12-02 12:03:52,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:03:52,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:03:52,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:03:52,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:03:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:03:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 12:03:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:03:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:03:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:03:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:03:52,407 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:03:52,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:03:56,247 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 12:03:56,247 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:03:56,255 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:03:56,255 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:03:56,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:03:56 BoogieIcfgContainer [2024-12-02 12:03:56,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:03:56,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:03:56,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:03:56,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:03:56,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:03:51" (1/3) ... [2024-12-02 12:03:56,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5f9eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:03:56, skipping insertion in model container [2024-12-02 12:03:56,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:03:52" (2/3) ... [2024-12-02 12:03:56,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5f9eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:03:56, skipping insertion in model container [2024-12-02 12:03:56,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:03:56" (3/3) ... [2024-12-02 12:03:56,262 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-64.i [2024-12-02 12:03:56,273 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:03:56,274 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-64.i that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:03:56,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:03:56,317 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;@5da3b651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:03:56,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:03:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:03:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 12:03:56,326 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:56,327 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:56,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:03:56,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash -911701312, now seen corresponding path program 1 times [2024-12-02 12:03:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:03:56,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242046863] [2024-12-02 12:03:56,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:56,338 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 12:03:56,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:03:56,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:03:56,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:03:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:56,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:03:56,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:03:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-12-02 12:03:56,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:03:56,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:03:56,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242046863] [2024-12-02 12:03:56,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242046863] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:56,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:03:56,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:03:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867943524] [2024-12-02 12:03:56,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:56,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:03:56,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:03:56,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:03:56,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:03:56,855 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:03:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:56,875 INFO L93 Difference]: Finished difference Result 111 states and 192 transitions. [2024-12-02 12:03:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:03:56,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2024-12-02 12:03:56,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:56,882 INFO L225 Difference]: With dead ends: 111 [2024-12-02 12:03:56,882 INFO L226 Difference]: Without dead ends: 55 [2024-12-02 12:03:56,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 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 12:03:56,887 INFO L435 NwaCegarLoop]: 81 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, 81 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 12:03:56,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:03:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-12-02 12:03:56,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-12-02 12:03:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 12:03:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 81 transitions. [2024-12-02 12:03:56,924 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 81 transitions. Word has length 125 [2024-12-02 12:03:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:56,925 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 81 transitions. [2024-12-02 12:03:56,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:03:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 81 transitions. [2024-12-02 12:03:56,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 12:03:56,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:56,928 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:03:56,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:03:57,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:03:57,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:03:57,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1717989682, now seen corresponding path program 1 times [2024-12-02 12:03:57,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:03:57,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253136943] [2024-12-02 12:03:57,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:57,130 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 12:03:57,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:03:57,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:03:57,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:03:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:57,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 12:03:57,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 12:04:19,734 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:19,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:04:19,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253136943] [2024-12-02 12:04:19,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253136943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:19,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:19,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:04:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90135552] [2024-12-02 12:04:19,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:19,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:04:19,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:04:19,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:04:19,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:04:19,737 INFO L87 Difference]: Start difference. First operand 55 states and 81 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 12:04:22,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:04:24,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:04:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:25,803 INFO L93 Difference]: Finished difference Result 179 states and 263 transitions. [2024-12-02 12:04:25,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:04:25,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-12-02 12:04:25,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:25,830 INFO L225 Difference]: With dead ends: 179 [2024-12-02 12:04:25,830 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 12:04:25,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:04:25,831 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 69 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:25,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 436 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-12-02 12:04:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 12:04:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2024-12-02 12:04:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:04:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2024-12-02 12:04:25,856 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 125 [2024-12-02 12:04:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:25,857 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2024-12-02 12:04:25,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 12:04:25,857 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2024-12-02 12:04:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 12:04:25,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:25,860 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:25,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 12:04:26,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:04:26,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:26,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1482512312, now seen corresponding path program 1 times [2024-12-02 12:04:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:04:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673846204] [2024-12-02 12:04:26,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:26,061 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 12:04:26,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:04:26,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:04:26,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:04:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:26,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 12:04:26,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 12:04:27,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:27,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:04:27,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673846204] [2024-12-02 12:04:27,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673846204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:27,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:27,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:04:27,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913875234] [2024-12-02 12:04:27,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:27,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:04:27,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:27,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:27,153 INFO L87 Difference]: Start difference. First operand 102 states and 151 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 12:04:28,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:04:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:28,421 INFO L93 Difference]: Finished difference Result 157 states and 232 transitions. [2024-12-02 12:04:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 126 [2024-12-02 12:04:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:28,447 INFO L225 Difference]: With dead ends: 157 [2024-12-02 12:04:28,447 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 12:04:28,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 12:04:28,448 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:28,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 74 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:04:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 12:04:28,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-12-02 12:04:28,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 57 states have (on average 1.1228070175438596) internal successors, (64), 57 states have internal predecessors, (64), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:04:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 144 transitions. [2024-12-02 12:04:28,465 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 144 transitions. Word has length 126 [2024-12-02 12:04:28,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:28,465 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 144 transitions. [2024-12-02 12:04:28,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 12:04:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 144 transitions. [2024-12-02 12:04:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 12:04:28,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:28,468 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:28,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 12:04:28,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:04:28,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:28,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:28,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1447203203, now seen corresponding path program 1 times [2024-12-02 12:04:28,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:04:28,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059694961] [2024-12-02 12:04:28,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:28,670 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 12:04:28,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:04:28,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:04:28,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:04:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:29,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:04:29,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 399 proven. 27 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-12-02 12:04:48,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:07:06,111 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:07:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059694961] [2024-12-02 12:07:06,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059694961] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:07:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1102433404] [2024-12-02 12:07:06,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:07:06,112 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:07:06,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:07:06,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:07:06,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-02 12:07:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:07:07,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:07:07,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:08:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 399 proven. 27 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-12-02 12:08:28,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:10:35,866 WARN L286 SmtUtils]: Spent 13.58s on a formula simplification. DAG size of input: 127 DAG size of output: 122 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:11:30,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1102433404] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:11:30,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:11:30,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2024-12-02 12:11:30,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551313533] [2024-12-02 12:11:30,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:11:30,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 12:11:30,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:11:30,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 12:11:30,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-12-02 12:11:30,548 INFO L87 Difference]: Start difference. First operand 100 states and 144 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 4 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 12:11:55,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:11:58,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:12:03,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:12:03,926 INFO L93 Difference]: Finished difference Result 165 states and 220 transitions. [2024-12-02 12:12:03,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 12:12:03,927 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 4 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 126 [2024-12-02 12:12:03,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:12:03,929 INFO L225 Difference]: With dead ends: 165 [2024-12-02 12:12:03,929 INFO L226 Difference]: Without dead ends: 163 [2024-12-02 12:12:03,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 110.3s TimeCoverageRelationStatistics Valid=348, Invalid=1292, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 12:12:03,931 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 171 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:12:03,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 408 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2024-12-02 12:12:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-12-02 12:12:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 138. [2024-12-02 12:12:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 82 states have (on average 1.0975609756097562) internal successors, (90), 83 states have internal predecessors, (90), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 12:12:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 190 transitions. [2024-12-02 12:12:03,961 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 190 transitions. Word has length 126 [2024-12-02 12:12:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:12:03,962 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 190 transitions. [2024-12-02 12:12:03,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 4 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-12-02 12:12:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 190 transitions. [2024-12-02 12:12:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 12:12:03,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:12:03,965 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:03,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-02 12:12:04,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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)] Ended with exit code 0 [2024-12-02 12:12:04,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:12:04,365 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:12:04,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:12:04,366 INFO L85 PathProgramCache]: Analyzing trace with hash -835619767, now seen corresponding path program 1 times [2024-12-02 12:12:04,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:12:04,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587905874] [2024-12-02 12:12:04,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:04,366 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 12:12:04,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:12:04,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:12:04,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 (7)] Waiting until timeout for monitored process [2024-12-02 12:12:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:04,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:12:04,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 340 proven. 87 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-12-02 12:12:06,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:12:11,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:12:11,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587905874] [2024-12-02 12:12:11,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587905874] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:12:11,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1633457633] [2024-12-02 12:12:11,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:12:11,593 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:12:11,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:12:11,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:12:11,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-02 12:12:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:12:12,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:12:12,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:12:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 12:12:46,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:12:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1633457633] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:12:46,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:12:46,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-12-02 12:12:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139040730] [2024-12-02 12:12:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:12:46,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:12:46,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:12:46,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:12:46,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:12:46,686 INFO L87 Difference]: Start difference. First operand 138 states and 190 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 12:12:54,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:12:57,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:13:05,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:05,417 INFO L93 Difference]: Finished difference Result 161 states and 215 transitions. [2024-12-02 12:13:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:13:05,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 127 [2024-12-02 12:13:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:05,420 INFO L225 Difference]: With dead ends: 161 [2024-12-02 12:13:05,420 INFO L226 Difference]: Without dead ends: 159 [2024-12-02 12:13:05,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-12-02 12:13:05,421 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 28 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:05,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 424 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-12-02 12:13:05,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-12-02 12:13:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 138. [2024-12-02 12:13:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 82 states have (on average 1.0975609756097562) internal successors, (90), 83 states have internal predecessors, (90), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 12:13:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 190 transitions. [2024-12-02 12:13:05,445 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 190 transitions. Word has length 127 [2024-12-02 12:13:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:05,445 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 190 transitions. [2024-12-02 12:13:05,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-12-02 12:13:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 190 transitions. [2024-12-02 12:13:05,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-12-02 12:13:05,449 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:13:05,449 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:13:05,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 (7)] Forceful destruction successful, exit code 0 [2024-12-02 12:13:05,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-02 12:13:05,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 12:13:05,850 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:13:05,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:13:05,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1481008156, now seen corresponding path program 1 times [2024-12-02 12:13:05,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:13:05,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150781713] [2024-12-02 12:13:05,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:13:05,851 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 12:13:05,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:13:05,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:13:05,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 (9)] Waiting until timeout for monitored process [2024-12-02 12:13:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:13:06,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:13:06,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:13:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3161 backedges. 1793 proven. 51 refuted. 0 times theorem prover too weak. 1317 trivial. 0 not checked. [2024-12-02 12:13:08,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:13:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3161 backedges. 40 proven. 111 refuted. 0 times theorem prover too weak. 3010 trivial. 0 not checked. [2024-12-02 12:13:09,309 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:13:09,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150781713] [2024-12-02 12:13:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150781713] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:13:09,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:13:09,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-12-02 12:13:09,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124495289] [2024-12-02 12:13:09,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:13:09,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:13:09,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:13:09,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:13:09,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:13:09,311 INFO L87 Difference]: Start difference. First operand 138 states and 190 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 5 states have call successors, (80), 4 states have call predecessors, (80), 6 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2024-12-02 12:13:14,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:13:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:13:14,381 INFO L93 Difference]: Finished difference Result 269 states and 358 transitions. [2024-12-02 12:13:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:13:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 5 states have call successors, (80), 4 states have call predecessors, (80), 6 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) Word has length 247 [2024-12-02 12:13:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:13:14,383 INFO L225 Difference]: With dead ends: 269 [2024-12-02 12:13:14,383 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:13:14,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:13:14,385 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 124 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:13:14,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 246 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 12:13:14,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:13:14,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:13:14,387 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 12:13:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:13:14,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2024-12-02 12:13:14,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:13:14,387 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:13:14,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 5 states have call successors, (80), 4 states have call predecessors, (80), 6 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2024-12-02 12:13:14,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:13:14,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:13:14,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:13:14,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 (9)] Ended with exit code 0 [2024-12-02 12:13:14,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/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 12:13:14,593 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 12:13:14,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:13:31,047 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:13:31,056 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:13:31,056 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:13:31,056 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:13:31,057 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:13:31,057 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:13:31,057 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 12:13:31,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:13:31 BoogieIcfgContainer [2024-12-02 12:13:31,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:13:31,060 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:13:31,060 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:13:31,060 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:13:31,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:03:56" (3/4) ... [2024-12-02 12:13:31,062 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:13:31,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 12:13:31,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 12:13:31,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 12:13:31,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 12:13:31,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:13:31,147 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:13:31,148 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:13:31,148 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:13:31,149 INFO L158 Benchmark]: Toolchain (without parser) took 579148.90ms. Allocated memory was 92.3MB in the beginning and 704.6MB in the end (delta: 612.4MB). Free memory was 69.0MB in the beginning and 445.3MB in the end (delta: -376.3MB). Peak memory consumption was 230.8MB. Max. memory is 16.1GB. [2024-12-02 12:13:31,149 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:13:31,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.60ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 55.4MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:13:31,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.52ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 53.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:13:31,150 INFO L158 Benchmark]: Boogie Preprocessor took 42.94ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 51.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:13:31,150 INFO L158 Benchmark]: RCFGBuilder took 3953.96ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 65.3MB in the end (delta: -14.0MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-12-02 12:13:31,151 INFO L158 Benchmark]: TraceAbstraction took 574802.49ms. Allocated memory was 92.3MB in the beginning and 704.6MB in the end (delta: 612.4MB). Free memory was 64.6MB in the beginning and 453.6MB in the end (delta: -389.0MB). Peak memory consumption was 227.2MB. Max. memory is 16.1GB. [2024-12-02 12:13:31,151 INFO L158 Benchmark]: Witness Printer took 88.22ms. Allocated memory is still 704.6MB. Free memory was 453.6MB in the beginning and 445.3MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:13:31,152 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 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.60ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 55.4MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.52ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 53.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.94ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 51.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3953.96ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 65.3MB in the end (delta: -14.0MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 574802.49ms. Allocated memory was 92.3MB in the beginning and 704.6MB in the end (delta: 612.4MB). Free memory was 64.6MB in the beginning and 453.6MB in the end (delta: -389.0MB). Peak memory consumption was 227.2MB. Max. memory is 16.1GB. * Witness Printer took 88.22ms. Allocated memory is still 704.6MB. Free memory was 453.6MB in the beginning and 445.3MB in the end (delta: 8.3MB). There was no memory consumed. 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: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - 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, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 558.3s, OverallIterations: 6, TraceHistogramMax: 40, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 64.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 39.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 1669 SdHoareTripleChecker+Invalid, 37.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1253 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1491 IncrementalHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 416 mSDtfsCounter, 1491 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1436 GetRequests, 1345 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 135.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=4, InterpolantAutomatonStates: 62, 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, 6 MinimizatonAttempts, 72 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 487.4s InterpolantComputationTime, 1129 NumberOfCodeBlocks, 1129 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1367 ConstructedInterpolants, 0 QuantifiedInterpolants, 7638 SizeOfPredicates, 71 NumberOfNonLiveVariables, 1760 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 11339/11642 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: ((0 == var_1_10) && (last_1_var_1_16 <= ((var_1_3 + -last_1_var_1_16) % 4294967296))) RESULT: Ultimate proved your program to be correct! [2024-12-02 12:13:31,360 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-12-02 12:13:31,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6614356-e61e-4613-8634-be1f95f710db/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE