./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.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_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f263d2bb0fd887b3497edbb0b9adbf8ce75a026e9853764f1c2fe7520ee07e1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:44:45,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:44:45,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:44:45,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:44:45,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:44:45,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:44:45,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:44:45,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:44:45,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:44:45,088 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:44:45,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:44:45,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:44:45,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:44:45,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:44:45,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:44:45,090 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:44:45,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:44:45,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:44:45,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:44:45,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:44:45,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:44:45,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:44:45,092 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_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f263d2bb0fd887b3497edbb0b9adbf8ce75a026e9853764f1c2fe7520ee07e1 [2024-12-02 07:44:45,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:44:45,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:44:45,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:44:45,328 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:44:45,328 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:44:45,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i [2024-12-02 07:44:47,918 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/89f9a18b8/dbb18a1e0d4d45f9b404d9c6841d04eb/FLAGdb14c484c [2024-12-02 07:44:48,132 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:44:48,133 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i [2024-12-02 07:44:48,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/89f9a18b8/dbb18a1e0d4d45f9b404d9c6841d04eb/FLAGdb14c484c [2024-12-02 07:44:48,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/89f9a18b8/dbb18a1e0d4d45f9b404d9c6841d04eb [2024-12-02 07:44:48,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:44:48,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:44:48,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:44:48,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:44:48,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:44:48,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92a8aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48, skipping insertion in model container [2024-12-02 07:44:48,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:44:48,643 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_c34a60bf-9c88-4903-917f-3e3d34e3a994/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i[913,926] [2024-12-02 07:44:48,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:44:48,685 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:44:48,695 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_c34a60bf-9c88-4903-917f-3e3d34e3a994/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i[913,926] [2024-12-02 07:44:48,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:44:48,719 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:44:48,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48 WrapperNode [2024-12-02 07:44:48,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:44:48,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:44:48,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:44:48,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:44:48,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,748 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2024-12-02 07:44:48,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:44:48,749 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:44:48,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:44:48,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:44:48,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,766 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:44:48,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,771 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:44:48,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:44:48,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:44:48,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:44:48,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (1/1) ... [2024-12-02 07:44:48,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:44:48,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:44:48,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:44:48,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:44:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:44:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:44:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:44:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:44:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:44:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:44:48,880 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:44:48,881 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:44:49,026 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 07:44:49,026 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:44:49,034 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:44:49,034 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:44:49,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:44:49 BoogieIcfgContainer [2024-12-02 07:44:49,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:44:49,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:44:49,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:44:49,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:44:49,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:44:48" (1/3) ... [2024-12-02 07:44:49,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b67bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:44:49, skipping insertion in model container [2024-12-02 07:44:49,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:48" (2/3) ... [2024-12-02 07:44:49,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b67bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:44:49, skipping insertion in model container [2024-12-02 07:44:49,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:44:49" (3/3) ... [2024-12-02 07:44:49,041 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-47.i [2024-12-02 07:44:49,052 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:44:49,053 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-47.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:44:49,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:44:49,104 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;@209f2bb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:44:49,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:44:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:44:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:44:49,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:49,113 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:49,114 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:49,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash 807039418, now seen corresponding path program 1 times [2024-12-02 07:44:49,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:44:49,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049901883] [2024-12-02 07:44:49,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:49,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:44:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 07:44:49,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:44:49,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049901883] [2024-12-02 07:44:49,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049901883] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:44:49,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406732989] [2024-12-02 07:44:49,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:49,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:44:49,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:44:49,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:44:49,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:44:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:49,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:44:49,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:44:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 07:44:49,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:44:49,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406732989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:44:49,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:44:49,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:44:49,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662889022] [2024-12-02 07:44:49,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:44:49,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:44:49,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:44:49,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:44:49,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:44:49,411 INFO L87 Difference]: Start difference. First operand has 42 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 07:44:49,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:44:49,425 INFO L93 Difference]: Finished difference Result 77 states and 123 transitions. [2024-12-02 07:44:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:44:49,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-12-02 07:44:49,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:44:49,437 INFO L225 Difference]: With dead ends: 77 [2024-12-02 07:44:49,437 INFO L226 Difference]: Without dead ends: 38 [2024-12-02 07:44:49,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:44:49,442 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:44:49,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:44:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-12-02 07:44:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-12-02 07:44:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:44:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-12-02 07:44:49,468 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 65 [2024-12-02 07:44:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:44:49,468 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-12-02 07:44:49,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 07:44:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-12-02 07:44:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:44:49,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:49,471 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:49,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:44:49,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:44:49,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:49,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -81580040, now seen corresponding path program 1 times [2024-12-02 07:44:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:44:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307343365] [2024-12-02 07:44:49,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:44:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:44:49,743 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:44:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:44:49,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:44:49,831 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:44:49,832 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:44:49,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:44:49,836 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:44:49,874 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:44:49,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:44:49 BoogieIcfgContainer [2024-12-02 07:44:49,876 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:44:49,877 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:44:49,877 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:44:49,877 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:44:49,877 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:44:49" (3/4) ... [2024-12-02 07:44:49,879 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:44:49,879 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:44:49,880 INFO L158 Benchmark]: Toolchain (without parser) took 1381.70ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 96.6MB in the end (delta: 21.3MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-12-02 07:44:49,880 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:44:49,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.60ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 105.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:44:49,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:44:49,881 INFO L158 Benchmark]: Boogie Preprocessor took 28.66ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:44:49,881 INFO L158 Benchmark]: RCFGBuilder took 256.30ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 89.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:44:49,882 INFO L158 Benchmark]: TraceAbstraction took 840.07ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 96.6MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:44:49,882 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:44:49,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.60ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 105.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 104.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.66ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 256.30ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 89.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 840.07ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 96.6MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 13.8kB). 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 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double var_1_8 = 3.5; [L24] signed char var_1_9 = 16; [L25] signed char var_1_10 = 16; [L26] signed char var_1_11 = 4; [L27] signed long int var_1_12 = 8; [L28] unsigned char var_1_13 = 1; [L29] unsigned char var_1_14 = 1; [L30] double var_1_15 = 3.8; [L31] signed long int last_1_var_1_12 = 8; VAL [isInitial=0, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_8=7/2, var_1_9=16] [L85] isInitial = 1 [L86] FCALL initially() [L88] CALL updateLastVariables() [L78] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_8=7/2, var_1_9=16] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_8 = __VERIFIER_nondet_double() [L63] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L63] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L64] var_1_10 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L65] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L66] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L66] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L67] var_1_11 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L68] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L69] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L69] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L70] var_1_13 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L71] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L72] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L72] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L73] var_1_14 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L74] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L75] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L75] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L89] RET updateVariables() [L90] CALL step() [L35] COND FALSE !(-4 > last_1_var_1_12) [L40] var_1_9 = var_1_10 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=7] [L42] unsigned char stepLocal_0 = ! var_1_13; VAL [isInitial=1, last_1_var_1_12=8, stepLocal_0=0, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=7] [L43] COND FALSE !(stepLocal_0 || var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=7] [L50] var_1_15 = var_1_8 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=983/40, var_1_8=53, var_1_9=7] [L51] COND FALSE !(var_1_15 <= var_1_15) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=983/40, var_1_8=53, var_1_9=7] [L56] COND TRUE var_1_12 > var_1_9 [L57] var_1_1 = var_1_8 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=7] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return ((((var_1_15 <= var_1_15) ? (((var_1_12 + var_1_12) >= (var_1_12 + var_1_9)) ? (var_1_1 == ((double) ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) : 1) : ((var_1_12 > var_1_9) ? (var_1_1 == ((double) var_1_8)) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? (var_1_9 == ((signed char) ((((var_1_10 + var_1_11) < 0 ) ? -(var_1_10 + var_1_11) : (var_1_10 + var_1_11))))) : 1) : (var_1_9 == ((signed char) var_1_10)))) && (((! var_1_13) || var_1_14) ? ((! var_1_14) ? (var_1_12 == ((signed long int) (((((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))) < 0 ) ? -((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))) : ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))))))) : (var_1_12 == ((signed long int) var_1_9))) : 1)) && (var_1_15 == ((double) var_1_8)) ; VAL [\result=0, isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=7] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=7] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=8, var_1_10=7, var_1_11=-6, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=7] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 53 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, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 272/288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 07:44:49,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f263d2bb0fd887b3497edbb0b9adbf8ce75a026e9853764f1c2fe7520ee07e1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:44:51,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:44:51,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:44:51,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:44:51,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:44:51,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:44:51,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:44:51,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:44:51,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:44:51,867 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:44:51,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:44:51,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:44:51,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:44:51,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:44:51,868 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:44:51,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:44:51,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:44:51,869 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:44:51,870 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:44:51,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:44:51,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:44:51,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:44:51,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:44:51,871 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_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f263d2bb0fd887b3497edbb0b9adbf8ce75a026e9853764f1c2fe7520ee07e1 [2024-12-02 07:44:52,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:44:52,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:44:52,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:44:52,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:44:52,119 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:44:52,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i [2024-12-02 07:44:54,752 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/5859e66b9/055eaf470d854a6aa6e8b769a9c8adaa/FLAGf00a535fa [2024-12-02 07:44:54,921 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:44:54,921 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i [2024-12-02 07:44:54,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/5859e66b9/055eaf470d854a6aa6e8b769a9c8adaa/FLAGf00a535fa [2024-12-02 07:44:55,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/data/5859e66b9/055eaf470d854a6aa6e8b769a9c8adaa [2024-12-02 07:44:55,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:44:55,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:44:55,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:44:55,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:44:55,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:44:55,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05b5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55, skipping insertion in model container [2024-12-02 07:44:55,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:44:55,420 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_c34a60bf-9c88-4903-917f-3e3d34e3a994/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i[913,926] [2024-12-02 07:44:55,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:44:55,467 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:44:55,475 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_c34a60bf-9c88-4903-917f-3e3d34e3a994/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-47.i[913,926] [2024-12-02 07:44:55,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:44:55,505 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:44:55,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55 WrapperNode [2024-12-02 07:44:55,506 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:44:55,506 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:44:55,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:44:55,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:44:55,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,538 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-12-02 07:44:55,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:44:55,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:44:55,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:44:55,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:44:55,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,558 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:44:55,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,565 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:44:55,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:44:55,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:44:55,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:44:55,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (1/1) ... [2024-12-02 07:44:55,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:44:55,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:44:55,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:44:55,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:44:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:44:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:44:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:44:55,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:44:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:44:55,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:44:55,676 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:44:55,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:44:55,845 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 07:44:55,845 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:44:55,853 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:44:55,853 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:44:55,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:44:55 BoogieIcfgContainer [2024-12-02 07:44:55,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:44:55,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:44:55,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:44:55,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:44:55,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:44:55" (1/3) ... [2024-12-02 07:44:55,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613efa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:44:55, skipping insertion in model container [2024-12-02 07:44:55,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:44:55" (2/3) ... [2024-12-02 07:44:55,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613efa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:44:55, skipping insertion in model container [2024-12-02 07:44:55,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:44:55" (3/3) ... [2024-12-02 07:44:55,867 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-47.i [2024-12-02 07:44:55,878 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:44:55,879 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-47.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:44:55,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:44:55,926 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;@6a965865, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:44:55,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:44:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:44:55,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:44:55,935 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:55,936 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:55,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:55,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash 807039418, now seen corresponding path program 1 times [2024-12-02 07:44:55,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:44:55,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774504920] [2024-12-02 07:44:55,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:55,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:44:55,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:44:55,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:44:55,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 07:44:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:56,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:44:56,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:44:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 07:44:56,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:44:56,091 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:44:56,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774504920] [2024-12-02 07:44:56,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774504920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:44:56,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:44:56,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:44:56,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052553375] [2024-12-02 07:44:56,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:44:56,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:44:56,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:44:56,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:44:56,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:44:56,112 INFO L87 Difference]: Start difference. First operand has 42 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 07:44:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:44:56,129 INFO L93 Difference]: Finished difference Result 77 states and 123 transitions. [2024-12-02 07:44:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:44:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-12-02 07:44:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:44:56,136 INFO L225 Difference]: With dead ends: 77 [2024-12-02 07:44:56,136 INFO L226 Difference]: Without dead ends: 38 [2024-12-02 07:44:56,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:44:56,141 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:44:56,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:44:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-12-02 07:44:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-12-02 07:44:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:44:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-12-02 07:44:56,168 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 65 [2024-12-02 07:44:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:44:56,168 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-12-02 07:44:56,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 07:44:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-12-02 07:44:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:44:56,171 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:56,171 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:56,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 07:44:56,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:44:56,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:56,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:56,372 INFO L85 PathProgramCache]: Analyzing trace with hash -81580040, now seen corresponding path program 1 times [2024-12-02 07:44:56,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:44:56,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379225993] [2024-12-02 07:44:56,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:56,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:44:56,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:44:56,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:44:56,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 07:44:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:56,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:44:56,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:44:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 07:44:57,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:44:57,949 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-12-02 07:44:57,949 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:44:57,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379225993] [2024-12-02 07:44:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379225993] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:44:57,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:44:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-02 07:44:57,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882380286] [2024-12-02 07:44:57,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:44:57,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:44:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:44:57,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:44:57,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:44:57,952 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:44:58,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:44:58,658 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2024-12-02 07:44:58,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:44:58,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65 [2024-12-02 07:44:58,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:44:58,661 INFO L225 Difference]: With dead ends: 78 [2024-12-02 07:44:58,661 INFO L226 Difference]: Without dead ends: 43 [2024-12-02 07:44:58,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:44:58,662 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 74 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:44:58,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 92 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:44:58,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-12-02 07:44:58,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-12-02 07:44:58,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:44:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2024-12-02 07:44:58,672 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 65 [2024-12-02 07:44:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:44:58,672 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2024-12-02 07:44:58,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:44:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2024-12-02 07:44:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:44:58,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:58,674 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:58,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 07:44:58,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:44:58,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:58,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:58,875 INFO L85 PathProgramCache]: Analyzing trace with hash -316154374, now seen corresponding path program 1 times [2024-12-02 07:44:58,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:44:58,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506552915] [2024-12-02 07:44:58,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:58,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:44:58,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:44:58,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:44:58,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 07:44:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:58,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 07:44:58,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:47:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 07:47:15,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:50:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 07:50:58,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:50:58,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506552915] [2024-12-02 07:50:58,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506552915] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:50:58,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:50:58,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 22 [2024-12-02 07:50:58,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550723928] [2024-12-02 07:50:58,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:50:58,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:50:58,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:50:58,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:50:58,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:50:58,095 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:51:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:51:07,322 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2024-12-02 07:51:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:51:07,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-12-02 07:51:07,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:51:07,324 INFO L225 Difference]: With dead ends: 64 [2024-12-02 07:51:07,324 INFO L226 Difference]: Without dead ends: 62 [2024-12-02 07:51:07,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:51:07,324 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 24 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:51:07,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 214 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:51:07,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-12-02 07:51:07,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 49. [2024-12-02 07:51:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:51:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2024-12-02 07:51:07,330 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 65 [2024-12-02 07:51:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:51:07,330 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2024-12-02 07:51:07,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:51:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2024-12-02 07:51:07,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 07:51:07,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:51:07,331 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:51:07,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 07:51:07,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:51:07,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:51:07,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:51:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash -318001416, now seen corresponding path program 1 times [2024-12-02 07:51:07,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:51:07,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445031120] [2024-12-02 07:51:07,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:51:07,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:51:07,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:51:07,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:51:07,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 07:51:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:51:07,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 07:51:07,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:55:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 07:55:28,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:59:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 07:59:22,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:59:22,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445031120] [2024-12-02 07:59:22,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445031120] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:59:22,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:59:22,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 22 [2024-12-02 07:59:22,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929534290] [2024-12-02 07:59:22,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:59:22,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:59:22,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:59:22,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:59:22,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:59:22,602 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:59:30,185 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 220 DAG size of output: 210 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:59:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:59:37,455 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2024-12-02 07:59:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:59:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-12-02 07:59:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:59:37,458 INFO L225 Difference]: With dead ends: 68 [2024-12-02 07:59:37,458 INFO L226 Difference]: Without dead ends: 66 [2024-12-02 07:59:37,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=179, Invalid=691, Unknown=0, NotChecked=0, Total=870 [2024-12-02 07:59:37,460 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:59:37,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 184 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:59:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-12-02 07:59:37,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2024-12-02 07:59:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 41 states have internal predecessors, (51), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 07:59:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2024-12-02 07:59:37,472 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 65 [2024-12-02 07:59:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:59:37,473 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2024-12-02 07:59:37,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:59:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2024-12-02 07:59:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 07:59:37,474 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:59:37,474 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:59:37,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-12-02 07:59:37,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:59:37,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:59:37,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:59:37,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1942992698, now seen corresponding path program 1 times [2024-12-02 07:59:37,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:59:37,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072199759] [2024-12-02 07:59:37,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:59:37,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:59:37,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:59:37,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:59:37,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 07:59:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:59:37,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:59:37,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:59:37,860 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 07:59:37,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:59:37,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:59:37,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072199759] [2024-12-02 07:59:37,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072199759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:59:37,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:59:37,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:59:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645002377] [2024-12-02 07:59:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:59:37,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:59:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:59:37,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:59:37,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:59:37,861 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:59:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:59:37,999 INFO L93 Difference]: Finished difference Result 146 states and 190 transitions. [2024-12-02 07:59:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:59:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-12-02 07:59:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:59:38,001 INFO L225 Difference]: With dead ends: 146 [2024-12-02 07:59:38,002 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 07:59:38,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:59:38,003 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 46 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:59:38,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 127 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:59:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 07:59:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2024-12-02 07:59:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.1875) internal successors, (76), 64 states have internal predecessors, (76), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:59:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-12-02 07:59:38,020 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 66 [2024-12-02 07:59:38,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:59:38,021 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-12-02 07:59:38,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:59:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-12-02 07:59:38,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:59:38,023 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:59:38,023 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:59:38,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 07:59:38,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:59:38,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:59:38,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:59:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1472222313, now seen corresponding path program 1 times [2024-12-02 07:59:38,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:59:38,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884088543] [2024-12-02 07:59:38,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:59:38,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:59:38,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:59:38,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:59:38,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 07:59:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:59:38,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:59:38,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:59:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2024-12-02 07:59:38,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:59:38,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:59:38,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884088543] [2024-12-02 07:59:38,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884088543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:59:38,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:59:38,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:59:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684608592] [2024-12-02 07:59:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:59:38,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:59:38,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:59:38,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:59:38,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:59:38,333 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:59:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:59:38,373 INFO L93 Difference]: Finished difference Result 134 states and 174 transitions. [2024-12-02 07:59:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:59:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 129 [2024-12-02 07:59:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:59:38,375 INFO L225 Difference]: With dead ends: 134 [2024-12-02 07:59:38,375 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 07:59:38,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:59:38,376 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:59:38,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 100 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:59:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 07:59:38,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 07:59:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:59:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 07:59:38,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2024-12-02 07:59:38,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:59:38,377 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 07:59:38,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-12-02 07:59:38,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 07:59:38,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 07:59:38,379 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:59:38,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 07:59:38,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34a60bf-9c88-4903-917f-3e3d34e3a994/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:59:38,582 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 07:59:38,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.