./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB --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 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:30:36,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:30:36,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:30:36,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:30:36,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:30:36,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:30:36,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:30:36,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:30:36,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:30:36,223 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:30:36,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:30:36,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:30:36,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:30:36,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:30:36,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:30:36,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:30:36,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:30:36,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:30:36,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:30:36,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:30:36,226 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:30:36,226 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:30:36,226 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:30:36,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:36,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:36,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:36,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:36,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:30:36,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:36,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:36,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:36,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:36,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:30:36,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:30:36,228 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:30:36,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:30:36,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:30:36,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:30:36,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:30:36,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:30:36,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:30:36,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:30:36,229 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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 [2024-11-28 03:30:36,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:30:36,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:30:36,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:30:36,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:30:36,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:30:36,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2024-11-28 03:30:40,461 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/6ba15f787/7f5c66184b9244ff891a0bd224c6b927/FLAG76350da83 [2024-11-28 03:30:40,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:30:40,755 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2024-11-28 03:30:40,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/6ba15f787/7f5c66184b9244ff891a0bd224c6b927/FLAG76350da83 [2024-11-28 03:30:40,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/6ba15f787/7f5c66184b9244ff891a0bd224c6b927 [2024-11-28 03:30:40,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:30:40,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:30:40,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:40,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:30:40,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:30:40,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:40" (1/1) ... [2024-11-28 03:30:40,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd651dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:40, skipping insertion in model container [2024-11-28 03:30:40,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:40" (1/1) ... [2024-11-28 03:30:40,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:30:41,040 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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2024-11-28 03:30:41,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:41,132 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:30:41,150 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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2024-11-28 03:30:41,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:41,217 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:30:41,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41 WrapperNode [2024-11-28 03:30:41,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:41,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:41,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:30:41,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:30:41,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,296 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2024-11-28 03:30:41,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:41,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:30:41,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:30:41,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:30:41,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,347 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]. [2024-11-28 03:30:41,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,352 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:30:41,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:30:41,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:30:41,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:30:41,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (1/1) ... [2024-11-28 03:30:41,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:41,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:41,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:30:41,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:30:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:30:41,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:30:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:30:41,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:30:41,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:30:41,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:30:41,571 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:30:41,574 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:30:41,984 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 03:30:41,984 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:30:42,006 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:30:42,006 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:30:42,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:42 BoogieIcfgContainer [2024-11-28 03:30:42,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:30:42,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:30:42,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:30:42,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:30:42,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:30:40" (1/3) ... [2024-11-28 03:30:42,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372f9ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:42, skipping insertion in model container [2024-11-28 03:30:42,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:41" (2/3) ... [2024-11-28 03:30:42,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372f9ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:42, skipping insertion in model container [2024-11-28 03:30:42,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:42" (3/3) ... [2024-11-28 03:30:42,027 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-31.i [2024-11-28 03:30:42,051 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:30:42,055 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-31.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:30:42,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:30:42,188 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;@67194427, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:30:42,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:30:42,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:30:42,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:30:42,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:42,210 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:42,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:42,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:42,222 INFO L85 PathProgramCache]: Analyzing trace with hash -297880325, now seen corresponding path program 1 times [2024-11-28 03:30:42,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:42,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788077154] [2024-11-28 03:30:42,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:42,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:42,713 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 03:30:42,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:42,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788077154] [2024-11-28 03:30:42,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788077154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:42,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:42,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:42,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165346346] [2024-11-28 03:30:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:42,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:30:42,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:42,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:30:42,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:30:42,769 INFO L87 Difference]: Start difference. First operand has 45 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:30:42,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:42,816 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2024-11-28 03:30:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:30:42,820 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-28 03:30:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:42,833 INFO L225 Difference]: With dead ends: 83 [2024-11-28 03:30:42,833 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 03:30:42,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:30:42,846 INFO L435 NwaCegarLoop]: 59 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, 59 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 [2024-11-28 03:30:42,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:42,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 03:30:42,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-28 03:30:42,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:30:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-11-28 03:30:42,943 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 74 [2024-11-28 03:30:42,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:42,946 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-11-28 03:30:42,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:30:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-11-28 03:30:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:30:42,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:42,955 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:42,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:30:42,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:42,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:42,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1477127037, now seen corresponding path program 1 times [2024-11-28 03:30:42,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:42,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084891890] [2024-11-28 03:30:42,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:43,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928511894] [2024-11-28 03:30:43,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:43,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:43,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:43,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:43,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:30:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:30:43,376 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:30:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:30:43,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:30:43,498 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:30:43,499 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:30:43,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:30:43,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:43,708 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:30:43,785 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:30:43,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:30:43 BoogieIcfgContainer [2024-11-28 03:30:43,795 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:30:43,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:30:43,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:30:43,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:30:43,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:42" (3/4) ... [2024-11-28 03:30:43,802 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:30:43,803 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:30:43,807 INFO L158 Benchmark]: Toolchain (without parser) took 3003.06ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 68.1MB in the end (delta: 23.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-28 03:30:43,807 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:43,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.09ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 78.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:43,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.98ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.8MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:30:43,810 INFO L158 Benchmark]: Boogie Preprocessor took 77.76ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:43,811 INFO L158 Benchmark]: RCFGBuilder took 632.53ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 60.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:30:43,812 INFO L158 Benchmark]: TraceAbstraction took 1782.47ms. Allocated memory is still 117.4MB. Free memory was 59.8MB in the beginning and 68.7MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:43,813 INFO L158 Benchmark]: Witness Printer took 6.96ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 68.1MB in the end (delta: 625.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:30:43,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.09ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 78.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.98ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.8MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.76ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 632.53ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 60.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1782.47ms. Allocated memory is still 117.4MB. Free memory was 59.8MB in the beginning and 68.7MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.96ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 68.1MB in the end (delta: 625.8kB). 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 someBinaryDOUBLEComparisonOperation at line 89, overapproximation of someBinaryDOUBLEComparisonOperation at line 96. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 200; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = 1107940323; [L25] unsigned char var_1_6 = 0; [L26] signed long int var_1_7 = 4; [L27] signed long int var_1_8 = -32; [L28] unsigned char var_1_9 = 64; [L29] unsigned char var_1_12 = 4; [L30] double var_1_13 = 0.97; [L31] double var_1_14 = 32.6; [L32] signed long int last_1_var_1_7 = 4; [L33] double last_1_var_1_13 = 0.97; VAL [isInitial=0, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L100] isInitial = 1 [L101] FCALL initially() [L103] CALL updateLastVariables() [L92] last_1_var_1_7 = var_1_7 [L93] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=0, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L103] RET updateLastVariables() [L104] CALL updateVariables() [L73] var_1_2 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L74] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L75] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L75] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L76] var_1_3 = __VERIFIER_nondet_long() [L77] CALL assume_abort_if_not(var_1_3 >= 1073741822) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L77] RET assume_abort_if_not(var_1_3 >= 1073741822) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L78] CALL assume_abort_if_not(var_1_3 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L78] RET assume_abort_if_not(var_1_3 <= 2147483646) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=0, var_1_7=4, var_1_8=-32, var_1_9=64] [L79] var_1_6 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_7=4, var_1_8=-32, var_1_9=64] [L80] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_7=4, var_1_8=-32, var_1_9=64] [L81] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=-32, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=-32, var_1_9=64] [L81] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=-32, var_1_9=64] [L82] var_1_8 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L83] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L84] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L84] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L85] var_1_12 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L86] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L87] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L87] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_14=163/5, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L88] var_1_14 = __VERIFIER_nondet_double() [L89] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L89] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=64] [L104] RET updateVariables() [L105] CALL step() [L37] COND FALSE !(! (var_1_3 < (var_1_8 * last_1_var_1_7))) [L44] var_1_9 = var_1_12 VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=4, var_1_8=268435456, var_1_9=1] [L46] COND FALSE !(var_1_9 < var_1_9) [L49] var_1_7 = (var_1_9 - var_1_3) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=97/100, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741822, var_1_8=268435456, var_1_9=1] [L51] COND FALSE !((var_1_9 + var_1_3) < var_1_9) [L62] var_1_13 = var_1_14 VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=2, var_1_14=2, var_1_1=200, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741822, var_1_8=268435456, var_1_9=1] [L64] COND TRUE \read(var_1_2) [L65] var_1_1 = ((var_1_3 - var_1_9) - var_1_9) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=2, var_1_14=2, var_1_1=1073741821, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741822, var_1_8=268435456, var_1_9=1] [L105] RET step() [L106] CALL, EXPR property() [L96-L97] return (((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_9) - var_1_9))) : ((var_1_6 && (var_1_3 < var_1_9)) ? (var_1_1 == ((signed long int) var_1_3)) : 1)) && ((var_1_9 < var_1_9) ? (var_1_7 == ((signed long int) (var_1_9 + var_1_9))) : (var_1_7 == ((signed long int) (var_1_9 - var_1_3))))) && ((! (var_1_3 < (var_1_8 * last_1_var_1_7))) ? ((((((last_1_var_1_13) < 0 ) ? -(last_1_var_1_13) : (last_1_var_1_13))) < last_1_var_1_13) ? (var_1_6 ? (var_1_9 == ((unsigned char) var_1_12)) : 1) : 1) : (var_1_9 == ((unsigned char) var_1_12)))) && (((var_1_9 + var_1_3) < var_1_9) ? ((var_1_2 && var_1_6) ? (var_1_6 ? (var_1_13 == ((double) 0.8)) : (var_1_13 == ((double) var_1_14))) : (var_1_13 == ((double) var_1_14))) : (var_1_13 == ((double) var_1_14))) ; VAL [\result=0, isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=2, var_1_14=2, var_1_1=1073741821, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741822, var_1_8=268435456, var_1_9=1] [L106] RET, EXPR property() [L106] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=2, var_1_14=2, var_1_1=1073741821, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741822, var_1_8=268435456, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=97/100, last_1_var_1_7=4, var_1_12=1, var_1_13=2, var_1_14=2, var_1_1=1073741821, var_1_2=1, var_1_3=1073741823, var_1_6=1, var_1_7=-1073741822, var_1_8=268435456, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 59 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 220/220 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 [2024-11-28 03:30:43,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB --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 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:30:47,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:30:47,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:30:47,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:30:47,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:30:47,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:30:47,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:30:47,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:30:47,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:30:47,584 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:30:47,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:30:47,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:30:47,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:30:47,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:30:47,587 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:30:47,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:30:47,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:30:47,587 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:30:47,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:30:47,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:30:47,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:30:47,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:47,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:30:47,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:47,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:30:47,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:30:47,590 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:30:47,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:30:47,592 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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 9930e7e7388f7dfeb601d848298c3301ebab0d86295164196a4204cce117c042 [2024-11-28 03:30:47,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:30:47,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:30:47,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:30:47,964 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:30:47,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:30:47,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2024-11-28 03:30:51,253 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/83864bd39/8342545dd14f4e57a066324f92ff32ce/FLAG345dfe628 [2024-11-28 03:30:51,585 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:30:51,586 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i [2024-11-28 03:30:51,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/83864bd39/8342545dd14f4e57a066324f92ff32ce/FLAG345dfe628 [2024-11-28 03:30:51,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/data/83864bd39/8342545dd14f4e57a066324f92ff32ce [2024-11-28 03:30:51,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:30:51,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:30:51,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:51,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:30:51,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:30:51,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:51" (1/1) ... [2024-11-28 03:30:51,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d708cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:51, skipping insertion in model container [2024-11-28 03:30:51,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:51" (1/1) ... [2024-11-28 03:30:51,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:30:51,896 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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2024-11-28 03:30:51,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:51,997 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:30:52,012 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_b88b99e9-12de-4cd2-b586-59c19f8d9b13/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-31.i[913,926] [2024-11-28 03:30:52,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:30:52,062 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:30:52,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52 WrapperNode [2024-11-28 03:30:52,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:30:52,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:52,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:30:52,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:30:52,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,108 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-28 03:30:52,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:30:52,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:30:52,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:30:52,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:30:52,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,143 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]. [2024-11-28 03:30:52,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,155 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:30:52,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:30:52,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:30:52,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:30:52,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (1/1) ... [2024-11-28 03:30:52,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:30:52,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:52,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:30:52,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:30:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:30:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:30:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:30:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:30:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:30:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:30:52,405 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:30:52,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:30:52,979 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 03:30:52,983 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:30:53,004 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:30:53,006 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:30:53,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:53 BoogieIcfgContainer [2024-11-28 03:30:53,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:30:53,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:30:53,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:30:53,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:30:53,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:30:51" (1/3) ... [2024-11-28 03:30:53,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53282d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:53, skipping insertion in model container [2024-11-28 03:30:53,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:52" (2/3) ... [2024-11-28 03:30:53,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53282d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:30:53, skipping insertion in model container [2024-11-28 03:30:53,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:53" (3/3) ... [2024-11-28 03:30:53,027 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-31.i [2024-11-28 03:30:53,050 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:30:53,052 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-31.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:30:53,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:30:53,176 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;@51f95085, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:30:53,177 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:30:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:30:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:30:53,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:53,199 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:53,200 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:53,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:53,208 INFO L85 PathProgramCache]: Analyzing trace with hash -297880325, now seen corresponding path program 1 times [2024-11-28 03:30:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:30:53,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254424416] [2024-11-28 03:30:53,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:53,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:30:53,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:30:53,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:30:53,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:30:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:53,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:30:53,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 03:30:53,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:30:53,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:30:53,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254424416] [2024-11-28 03:30:53,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254424416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:30:53,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:30:53,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:30:53,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829008591] [2024-11-28 03:30:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:30:53,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:30:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:30:53,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:30:53,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:30:53,666 INFO L87 Difference]: Start difference. First operand has 45 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:30:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:53,708 INFO L93 Difference]: Finished difference Result 82 states and 137 transitions. [2024-11-28 03:30:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:30:53,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-28 03:30:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:53,723 INFO L225 Difference]: With dead ends: 82 [2024-11-28 03:30:53,725 INFO L226 Difference]: Without dead ends: 40 [2024-11-28 03:30:53,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:30:53,736 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:53,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:30:53,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-28 03:30:53,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-28 03:30:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:30:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2024-11-28 03:30:53,808 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 74 [2024-11-28 03:30:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:53,810 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2024-11-28 03:30:53,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:30:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-11-28 03:30:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:30:53,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:53,817 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:53,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:54,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:30:54,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:30:54,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1477127037, now seen corresponding path program 1 times [2024-11-28 03:30:54,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:30:54,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853580545] [2024-11-28 03:30:54,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:54,025 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 [2024-11-28 03:30:54,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:30:54,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:30:54,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:30:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:54,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:30:54,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:31:43,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:31:43,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:43,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853580545] [2024-11-28 03:31:43,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853580545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:43,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:43,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:31:43,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526606104] [2024-11-28 03:31:43,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:43,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:31:43,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:31:43,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:31:43,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:31:43,461 INFO L87 Difference]: Start difference. First operand 40 states and 56 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:31:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:46,327 INFO L93 Difference]: Finished difference Result 113 states and 151 transitions. [2024-11-28 03:31:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:31:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2024-11-28 03:31:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:46,332 INFO L225 Difference]: With dead ends: 113 [2024-11-28 03:31:46,334 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 03:31:46,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:31:46,336 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 138 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:46,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 255 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:31:46,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 03:31:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 74. [2024-11-28 03:31:46,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:31:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-11-28 03:31:46,368 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 74 [2024-11-28 03:31:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:46,369 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-11-28 03:31:46,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:31:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-11-28 03:31:46,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:31:46,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:46,372 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:46,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:31:46,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:31:46,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:46,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:46,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1400200324, now seen corresponding path program 1 times [2024-11-28 03:31:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622231712] [2024-11-28 03:31:46,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:46,576 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 [2024-11-28 03:31:46,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:31:46,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:31:46,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:31:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:46,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:31:46,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:31:46,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:46,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:46,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622231712] [2024-11-28 03:31:46,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622231712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:46,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [288591564] [2024-11-28 03:31:46,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:46,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:31:46,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:31:46,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:31:46,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-28 03:31:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:47,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:31:47,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:31:47,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:47,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [288591564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:47,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:31:47,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2024-11-28 03:31:47,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206738759] [2024-11-28 03:31:47,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:31:47,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:31:47,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:31:47,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:31:47,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:31:47,956 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 03:31:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:48,340 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2024-11-28 03:31:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:31:48,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2024-11-28 03:31:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:48,347 INFO L225 Difference]: With dead ends: 123 [2024-11-28 03:31:48,347 INFO L226 Difference]: Without dead ends: 86 [2024-11-28 03:31:48,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:31:48,349 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:48,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 81 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:31:48,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-28 03:31:48,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2024-11-28 03:31:48,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:31:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2024-11-28 03:31:48,364 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 75 [2024-11-28 03:31:48,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:48,365 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2024-11-28 03:31:48,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-28 03:31:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2024-11-28 03:31:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:31:48,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:48,367 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:48,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:31:48,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:31:48,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:31:48,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:48,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1398353282, now seen corresponding path program 1 times [2024-11-28 03:31:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:48,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362086549] [2024-11-28 03:31:48,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:48,769 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 [2024-11-28 03:31:48,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:31:48,772 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:31:48,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 03:31:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:48,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:31:48,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:39,594 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:33:39,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:39,595 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:33:39,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362086549] [2024-11-28 03:33:39,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362086549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:39,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:39,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:33:39,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170388568] [2024-11-28 03:33:39,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:39,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:33:39,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:33:39,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:33:39,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:33:39,598 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:33:42,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:42,101 INFO L93 Difference]: Finished difference Result 119 states and 151 transitions. [2024-11-28 03:33:42,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:33:42,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-28 03:33:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:42,105 INFO L225 Difference]: With dead ends: 119 [2024-11-28 03:33:42,105 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 03:33:42,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:33:42,107 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 116 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:42,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 294 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:33:42,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 03:33:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 83. [2024-11-28 03:33:42,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:33:42,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2024-11-28 03:33:42,127 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 75 [2024-11-28 03:33:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:42,127 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2024-11-28 03:33:42,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:33:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2024-11-28 03:33:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:33:42,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:42,130 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:42,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 03:33:42,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:33:42,331 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:42,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1202629934, now seen corresponding path program 1 times [2024-11-28 03:33:42,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:42,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241956576] [2024-11-28 03:33:42,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:42,332 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 [2024-11-28 03:33:42,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:33:42,334 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:33:42,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:33:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:42,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:33:42,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-28 03:33:58,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:35:45,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:35:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241956576] [2024-11-28 03:35:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241956576] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:45,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:45,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 27 [2024-11-28 03:35:45,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315968362] [2024-11-28 03:35:45,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:45,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:35:45,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:35:45,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:35:45,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:35:45,319 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:35:59,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-28 03:36:22,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-28 03:36:24,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-28 03:36:29,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:29,480 INFO L93 Difference]: Finished difference Result 185 states and 223 transitions. [2024-11-28 03:36:29,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:36:29,484 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-28 03:36:29,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:29,486 INFO L225 Difference]: With dead ends: 185 [2024-11-28 03:36:29,486 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 03:36:29,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 33.5s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:36:29,490 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 186 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:29,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 299 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 350 Invalid, 2 Unknown, 0 Unchecked, 23.4s Time] [2024-11-28 03:36:29,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 03:36:29,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 143. [2024-11-28 03:36:29,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 100 states have internal predecessors, (115), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:36:29,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2024-11-28 03:36:29,538 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 75 [2024-11-28 03:36:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:29,539 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2024-11-28 03:36:29,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:36:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2024-11-28 03:36:29,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:36:29,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:29,545 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:29,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 03:36:29,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:36:29,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:36:29,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash 657344966, now seen corresponding path program 1 times [2024-11-28 03:36:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:36:29,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900842232] [2024-11-28 03:36:29,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:29,747 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 [2024-11-28 03:36:29,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:36:29,750 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:36:29,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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)] Waiting until timeout for monitored process [2024-11-28 03:36:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:29,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:36:29,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:37:00,757 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:37:00,758 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:00,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900842232] [2024-11-28 03:37:00,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900842232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:00,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:00,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:37:00,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988196967] [2024-11-28 03:37:00,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:00,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:37:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:37:00,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:37:00,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:37:00,760 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:37:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:06,716 INFO L93 Difference]: Finished difference Result 194 states and 243 transitions. [2024-11-28 03:37:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:37:06,719 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-28 03:37:06,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:06,722 INFO L225 Difference]: With dead ends: 194 [2024-11-28 03:37:06,722 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 03:37:06,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:37:06,725 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 94 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:06,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 356 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 03:37:06,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 03:37:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 147. [2024-11-28 03:37:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 102 states have (on average 1.1862745098039216) internal successors, (121), 104 states have internal predecessors, (121), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:37:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 189 transitions. [2024-11-28 03:37:06,777 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 189 transitions. Word has length 75 [2024-11-28 03:37:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:06,777 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 189 transitions. [2024-11-28 03:37:06,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:37:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 189 transitions. [2024-11-28 03:37:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:37:06,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:06,779 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:06,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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)] Forceful destruction successful, exit code 0 [2024-11-28 03:37:06,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:37:06,984 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:06,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:06,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1428526537, now seen corresponding path program 1 times [2024-11-28 03:37:06,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:37:06,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248610043] [2024-11-28 03:37:06,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:06,985 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 [2024-11-28 03:37:06,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:37:06,987 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:37:06,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:37:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:07,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:37:07,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-28 03:38:40,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:40:07,498 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:40:07,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248610043] [2024-11-28 03:40:07,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248610043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:07,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [944613325] [2024-11-28 03:40:07,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:07,498 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:40:07,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:40:07,500 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:40:07,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-28 03:40:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:08,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:40:08,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:41:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:41:46,695 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:41:46,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [944613325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:46,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:41:46,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 25 [2024-11-28 03:41:46,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83713747] [2024-11-28 03:41:46,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:46,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:41:46,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:41:46,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:41:46,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:41:46,698 INFO L87 Difference]: Start difference. First operand 147 states and 189 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:41:57,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:57,558 INFO L93 Difference]: Finished difference Result 195 states and 237 transitions. [2024-11-28 03:41:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:41:57,563 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2024-11-28 03:41:57,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:57,565 INFO L225 Difference]: With dead ends: 195 [2024-11-28 03:41:57,565 INFO L226 Difference]: Without dead ends: 193 [2024-11-28 03:41:57,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=213, Invalid=1269, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:41:57,567 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:57,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 192 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 03:41:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-28 03:41:57,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 153. [2024-11-28 03:41:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:41:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 195 transitions. [2024-11-28 03:41:57,613 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 195 transitions. Word has length 76 [2024-11-28 03:41:57,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:57,614 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 195 transitions. [2024-11-28 03:41:57,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:41:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 195 transitions. [2024-11-28 03:41:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:41:57,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:57,616 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:57,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:41:57,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-28 03:41:58,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:41:58,017 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:58,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:58,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1783808376, now seen corresponding path program 1 times [2024-11-28 03:41:58,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:41:58,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779686500] [2024-11-28 03:41:58,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:58,018 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 [2024-11-28 03:41:58,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:41:58,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:41:58,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 (11)] Waiting until timeout for monitored process [2024-11-28 03:41:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:58,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:41:58,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:42:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 03:42:21,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:42:21,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:42:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779686500] [2024-11-28 03:42:21,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779686500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:21,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:21,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:42:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469506601] [2024-11-28 03:42:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:21,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:42:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:42:21,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:42:21,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:42:21,616 INFO L87 Difference]: Start difference. First operand 153 states and 195 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:42:24,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:42:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:42:25,389 INFO L93 Difference]: Finished difference Result 204 states and 254 transitions. [2024-11-28 03:42:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:42:25,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2024-11-28 03:42:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:42:25,391 INFO L225 Difference]: With dead ends: 204 [2024-11-28 03:42:25,391 INFO L226 Difference]: Without dead ends: 202 [2024-11-28 03:42:25,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:42:25,392 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 87 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:42:25,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 277 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:42:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-28 03:42:25,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 156. [2024-11-28 03:42:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.209090909090909) internal successors, (133), 112 states have internal predecessors, (133), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:42:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 201 transitions. [2024-11-28 03:42:25,427 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 201 transitions. Word has length 76 [2024-11-28 03:42:25,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:42:25,427 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 201 transitions. [2024-11-28 03:42:25,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:42:25,427 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 201 transitions. [2024-11-28 03:42:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:42:25,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:25,429 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:25,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 (11)] Ended with exit code 0 [2024-11-28 03:42:25,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:42:25,630 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:42:25,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:25,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1041793707, now seen corresponding path program 1 times [2024-11-28 03:42:25,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:42:25,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975065687] [2024-11-28 03:42:25,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:25,631 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 [2024-11-28 03:42:25,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:42:25,633 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:42:25,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 (12)] Waiting until timeout for monitored process [2024-11-28 03:42:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:25,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:42:25,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:43:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:43:31,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:43:31,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:43:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975065687] [2024-11-28 03:43:31,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975065687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:43:31,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:43:31,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:43:31,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178391655] [2024-11-28 03:43:31,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:43:31,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:43:31,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:43:31,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:43:31,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:43:31,826 INFO L87 Difference]: Start difference. First operand 156 states and 201 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:43:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:43:36,657 INFO L93 Difference]: Finished difference Result 203 states and 252 transitions. [2024-11-28 03:43:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:43:36,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2024-11-28 03:43:36,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:43:36,662 INFO L225 Difference]: With dead ends: 203 [2024-11-28 03:43:36,662 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 03:43:36,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:43:36,665 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 99 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:43:36,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 337 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:43:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 03:43:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 155. [2024-11-28 03:43:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 109 states have (on average 1.201834862385321) internal successors, (131), 111 states have internal predecessors, (131), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:43:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 199 transitions. [2024-11-28 03:43:36,697 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 199 transitions. Word has length 76 [2024-11-28 03:43:36,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:43:36,697 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 199 transitions. [2024-11-28 03:43:36,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:43:36,697 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 199 transitions. [2024-11-28 03:43:36,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:43:36,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:43:36,699 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:43:36,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 (12)] Ended with exit code 0 [2024-11-28 03:43:36,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:43:36,899 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:43:36,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:43:36,900 INFO L85 PathProgramCache]: Analyzing trace with hash -846070359, now seen corresponding path program 1 times [2024-11-28 03:43:36,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:43:36,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373697909] [2024-11-28 03:43:36,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:43:36,900 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 [2024-11-28 03:43:36,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:43:36,902 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:43:36,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b88b99e9-12de-4cd2-b586-59c19f8d9b13/bin/uautomizer-verify-aQ6SnzHsRB/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 (13)] Waiting until timeout for monitored process [2024-11-28 03:43:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:43:37,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:43:37,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:43:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-28 03:43:50,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:45:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-28 03:45:17,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:45:17,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373697909] [2024-11-28 03:45:17,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373697909] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:45:17,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:45:17,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 27 [2024-11-28 03:45:17,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080201625] [2024-11-28 03:45:17,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:45:17,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:45:17,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:45:17,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:45:17,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:45:17,242 INFO L87 Difference]: Start difference. First operand 155 states and 199 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-28 03:45:30,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]