./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.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_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:21:58,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:21:58,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:21:58,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:21:58,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:21:58,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:21:58,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:21:58,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:21:58,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:21:58,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:21:58,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:21:58,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:21:58,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:21:58,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:21:58,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:21:58,218 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:58,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:21:58,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:58,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:21:58,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:21:58,220 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_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 -> cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b [2024-12-02 07:21:58,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:21:58,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:21:58,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:21:58,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:21:58,457 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:21:58,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-12-02 07:22:01,111 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/25d80ef46/186d1633ba634371bbdf0583f906ccf9/FLAG2c29a959e [2024-12-02 07:22:01,334 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:22:01,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-12-02 07:22:01,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/25d80ef46/186d1633ba634371bbdf0583f906ccf9/FLAG2c29a959e [2024-12-02 07:22:01,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/25d80ef46/186d1633ba634371bbdf0583f906ccf9 [2024-12-02 07:22:01,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:22:01,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:22:01,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:22:01,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:22:01,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:22:01,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f58dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01, skipping insertion in model container [2024-12-02 07:22:01,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:22:01,827 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_8196c3de-7457-42ae-8fea-10c7b4ef6681/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-12-02 07:22:01,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:22:01,873 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:22:01,883 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_8196c3de-7457-42ae-8fea-10c7b4ef6681/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-12-02 07:22:01,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:22:01,915 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:22:01,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01 WrapperNode [2024-12-02 07:22:01,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:22:01,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:22:01,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:22:01,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:22:01,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,955 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-12-02 07:22:01,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:22:01,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:22:01,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:22:01,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:22:01,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,967 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,980 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 07:22:01,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,986 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:01,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:22:01,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:22:01,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:22:01,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:22:01,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (1/1) ... [2024-12-02 07:22:02,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:22:02,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:02,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:22:02,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:22:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:22:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:22:02,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:22:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:22:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:22:02,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:22:02,111 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:22:02,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:22:02,315 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 07:22:02,315 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:22:02,322 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:22:02,323 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 07:22:02,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:02 BoogieIcfgContainer [2024-12-02 07:22:02,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:22:02,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:22:02,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:22:02,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:22:02,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:22:01" (1/3) ... [2024-12-02 07:22:02,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e32db03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:22:02, skipping insertion in model container [2024-12-02 07:22:02,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:01" (2/3) ... [2024-12-02 07:22:02,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e32db03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:22:02, skipping insertion in model container [2024-12-02 07:22:02,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:02" (3/3) ... [2024-12-02 07:22:02,330 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-12-02 07:22:02,343 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:22:02,344 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-52.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:22:02,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:22:02,397 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;@766b4db9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:22:02,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:22:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 07:22:02,410 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:02,411 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:02,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:02,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1480064288, now seen corresponding path program 1 times [2024-12-02 07:22:02,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:02,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208547448] [2024-12-02 07:22:02,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:02,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:22:02,631 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:22:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:22:02,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:22:02,766 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:22:02,767 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:22:02,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:22:02,772 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 07:22:02,823 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:22:02,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:22:02 BoogieIcfgContainer [2024-12-02 07:22:02,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:22:02,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:22:02,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:22:02,827 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:22:02,827 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:02" (3/4) ... [2024-12-02 07:22:02,830 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:22:02,831 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:22:02,832 INFO L158 Benchmark]: Toolchain (without parser) took 1152.05ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 103.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-12-02 07:22:02,832 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:22:02,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.71ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 104.8MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:22:02,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.27ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:22:02,833 INFO L158 Benchmark]: Boogie Preprocessor took 39.40ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 97.8MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:22:02,833 INFO L158 Benchmark]: RCFGBuilder took 327.52ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 80.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:22:02,834 INFO L158 Benchmark]: TraceAbstraction took 501.43ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 103.2MB in the end (delta: -23.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-12-02 07:22:02,834 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 103.2MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:22:02,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.71ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 104.8MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.27ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.40ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 97.8MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.52ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 80.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 501.43ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 103.2MB in the end (delta: -23.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 103.2MB in the end (delta: 15.8kB). 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 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 92. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -4; [L23] double var_1_2 = 255.6; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 8; [L29] double var_1_10 = 255.2; [L30] unsigned char var_1_11 = 64; [L31] unsigned char var_1_12 = 100; [L32] unsigned char var_1_13 = 32; [L33] unsigned char var_1_14 = 64; [L34] unsigned char var_1_15 = 0; VAL [isInitial=0, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_2=1278/5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L96] isInitial = 1 [L97] FCALL initially() [L98] int k_loop; [L99] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_2=1278/5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L99] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_2=1278/5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L100] FCALL updateLastVariables() [L101] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L61] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L62] var_1_6 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L63] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L66] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L68] var_1_8 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_9=8] [L69] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_9=8] [L70] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L70] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L71] var_1_10 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L72] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L74] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L75] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L75] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L76] var_1_12 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_12 >= 64) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L77] RET assume_abort_if_not(var_1_12 >= 64) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L78] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L78] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L81] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L81] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L84] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L84] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L86] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L87] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L87] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=8] [L101] RET updateVariables() [L102] CALL step() [L38] COND TRUE (- var_1_2) <= var_1_10 [L39] var_1_9 = ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] [L43] COND TRUE var_1_2 < 63.75 [L44] var_1_1 = (10 - var_1_9) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] [L48] signed long int stepLocal_0 = (var_1_9 / -256) * 32; VAL [isInitial=1, stepLocal_0=0, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=1, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] [L49] COND FALSE !(var_1_9 > stepLocal_0) [L56] var_1_5 = var_1_7 VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=-255, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] [L102] RET step() [L103] CALL, EXPR property() [L92-L93] return (((var_1_2 < 63.75) ? (var_1_1 == ((signed short int) (10 - var_1_9))) : (var_1_1 == ((signed short int) (4 + var_1_9)))) && ((var_1_9 > ((var_1_9 / -256) * 32)) ? (var_1_6 ? (var_1_5 == ((unsigned char) (! (var_1_7 && (! var_1_8))))) : (var_1_5 == ((unsigned char) var_1_7))) : (var_1_5 == ((unsigned char) var_1_7)))) && (((- var_1_2) <= var_1_10) ? (var_1_9 == ((unsigned char) ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))))) : (var_1_9 == ((unsigned char) var_1_12))) ; VAL [\result=0, isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=-255, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=-255, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_11=63, var_1_12=64, var_1_13=127, var_1_14=0, var_1_15=0, var_1_1=10, var_1_5=-255, var_1_6=1, var_1_7=-255, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 07:22:02,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:22:04,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:22:04,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:22:04,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:22:04,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:22:04,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:22:04,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:22:04,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:22:04,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:22:04,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:22:04,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:22:04,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:22:04,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:22:04,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:22:04,840 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:22:04,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:22:04,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:22:04,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:22:04,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:22:04,841 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:22:04,842 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:22:04,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:22:04,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:22:04,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:22:04,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:22:04,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:22:04,844 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_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 -> cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b [2024-12-02 07:22:05,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:22:05,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:22:05,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:22:05,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:22:05,069 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:22:05,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-12-02 07:22:07,673 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/7f18c99e4/1ab8e78f3d3a4eefb484d293f575babf/FLAG599a5b367 [2024-12-02 07:22:07,871 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:22:07,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-12-02 07:22:07,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/7f18c99e4/1ab8e78f3d3a4eefb484d293f575babf/FLAG599a5b367 [2024-12-02 07:22:08,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/data/7f18c99e4/1ab8e78f3d3a4eefb484d293f575babf [2024-12-02 07:22:08,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:22:08,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:22:08,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:22:08,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:22:08,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:22:08,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2125d908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08, skipping insertion in model container [2024-12-02 07:22:08,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:22:08,357 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_8196c3de-7457-42ae-8fea-10c7b4ef6681/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-12-02 07:22:08,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:22:08,405 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:22:08,413 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_8196c3de-7457-42ae-8fea-10c7b4ef6681/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-12-02 07:22:08,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:22:08,445 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:22:08,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08 WrapperNode [2024-12-02 07:22:08,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:22:08,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:22:08,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:22:08,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:22:08,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,477 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-12-02 07:22:08,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:22:08,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:22:08,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:22:08,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:22:08,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,496 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 07:22:08,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,503 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:22:08,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:22:08,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:22:08,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:22:08,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (1/1) ... [2024-12-02 07:22:08,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:22:08,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:08,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:22:08,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:22:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:22:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:22:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:22:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:22:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:22:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:22:08,615 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:22:08,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:22:08,795 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 07:22:08,795 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:22:08,803 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:22:08,803 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 07:22:08,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:08 BoogieIcfgContainer [2024-12-02 07:22:08,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:22:08,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:22:08,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:22:08,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:22:08,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:22:08" (1/3) ... [2024-12-02 07:22:08,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b1074a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:22:08, skipping insertion in model container [2024-12-02 07:22:08,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:08" (2/3) ... [2024-12-02 07:22:08,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b1074a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:22:08, skipping insertion in model container [2024-12-02 07:22:08,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:08" (3/3) ... [2024-12-02 07:22:08,811 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-12-02 07:22:08,821 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:22:08,822 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-52.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:22:08,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:22:08,867 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;@47fb88bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:22:08,867 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:22:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 07:22:08,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:08,878 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:08,878 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:08,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:08,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1480064288, now seen corresponding path program 1 times [2024-12-02 07:22:08,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:08,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213924121] [2024-12-02 07:22:08,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:08,891 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 07:22:08,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:08,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:08,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:09,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:22:09,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:22:18,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:18,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:18,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213924121] [2024-12-02 07:22:18,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213924121] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:18,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:18,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:22:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244793562] [2024-12-02 07:22:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:18,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:22:18,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:18,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:22:18,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:18,728 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:19,177 INFO L93 Difference]: Finished difference Result 147 states and 224 transitions. [2024-12-02 07:22:19,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:22:19,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-12-02 07:22:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:19,187 INFO L225 Difference]: With dead ends: 147 [2024-12-02 07:22:19,187 INFO L226 Difference]: Without dead ends: 81 [2024-12-02 07:22:19,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:19,193 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 66 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:19,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 303 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:22:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-12-02 07:22:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2024-12-02 07:22:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:19,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2024-12-02 07:22:19,221 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 114 [2024-12-02 07:22:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:19,222 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2024-12-02 07:22:19,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2024-12-02 07:22:19,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 07:22:19,224 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:19,224 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:19,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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)] Forceful destruction successful, exit code 0 [2024-12-02 07:22:19,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:19,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:19,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:19,426 INFO L85 PathProgramCache]: Analyzing trace with hash 294943074, now seen corresponding path program 1 times [2024-12-02 07:22:19,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:19,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653522792] [2024-12-02 07:22:19,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:19,426 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 07:22:19,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:19,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:19,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:19,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:22:19,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:22:27,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:27,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:27,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653522792] [2024-12-02 07:22:27,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653522792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:27,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:27,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:22:27,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952025437] [2024-12-02 07:22:27,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:27,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:22:27,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:27,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:22:27,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:27,190 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:27,878 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2024-12-02 07:22:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:22:27,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-12-02 07:22:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:27,881 INFO L225 Difference]: With dead ends: 86 [2024-12-02 07:22:27,881 INFO L226 Difference]: Without dead ends: 84 [2024-12-02 07:22:27,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:27,882 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 31 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:27,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 366 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-12-02 07:22:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 55. [2024-12-02 07:22:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2024-12-02 07:22:27,891 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 114 [2024-12-02 07:22:27,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:27,891 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2024-12-02 07:22:27,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2024-12-02 07:22:27,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 07:22:27,893 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:27,893 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:27,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:28,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:28,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:28,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2005556382, now seen corresponding path program 1 times [2024-12-02 07:22:28,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:28,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506013487] [2024-12-02 07:22:28,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:28,095 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 07:22:28,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:28,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:28,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:28,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 07:22:28,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 07:22:28,367 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:22:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:22:28,588 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:28,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506013487] [2024-12-02 07:22:28,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506013487] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:22:28,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:22:28,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2024-12-02 07:22:28,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037232427] [2024-12-02 07:22:28,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:22:28,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:22:28,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:28,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:22:28,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:22:28,591 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-12-02 07:22:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:29,436 INFO L93 Difference]: Finished difference Result 216 states and 293 transitions. [2024-12-02 07:22:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 07:22:29,437 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 114 [2024-12-02 07:22:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:29,439 INFO L225 Difference]: With dead ends: 216 [2024-12-02 07:22:29,439 INFO L226 Difference]: Without dead ends: 164 [2024-12-02 07:22:29,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:22:29,441 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 144 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:29,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 337 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-12-02 07:22:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 63. [2024-12-02 07:22:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 41 states have internal predecessors, (47), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:29,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2024-12-02 07:22:29,458 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 114 [2024-12-02 07:22:29,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:29,459 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2024-12-02 07:22:29,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2024-12-02 07:22:29,459 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2024-12-02 07:22:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:22:29,460 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:29,460 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:29,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 07:22:29,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:29,661 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:29,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:29,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1127087024, now seen corresponding path program 1 times [2024-12-02 07:22:29,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:29,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878531118] [2024-12-02 07:22:29,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:29,662 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 07:22:29,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:29,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:29,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:29,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:22:29,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:22:35,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:35,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:35,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878531118] [2024-12-02 07:22:35,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878531118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:35,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:35,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:35,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687110510] [2024-12-02 07:22:35,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:35,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:35,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:35,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:35,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:35,189 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:35,753 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2024-12-02 07:22:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:35,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:22:35,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:35,756 INFO L225 Difference]: With dead ends: 101 [2024-12-02 07:22:35,756 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 07:22:35,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:22:35,756 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 46 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:35,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 291 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:22:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 07:22:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 66. [2024-12-02 07:22:35,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-12-02 07:22:35,763 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 115 [2024-12-02 07:22:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:35,763 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-12-02 07:22:35,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:35,763 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2024-12-02 07:22:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:22:35,764 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:35,764 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:35,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 07:22:35,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:35,965 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:35,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:35,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1128934066, now seen corresponding path program 1 times [2024-12-02 07:22:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:35,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952323531] [2024-12-02 07:22:35,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:35,966 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 07:22:35,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:35,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:35,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:36,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 07:22:36,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:22:43,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:43,295 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:43,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952323531] [2024-12-02 07:22:43,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952323531] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:43,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:43,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:22:43,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835387586] [2024-12-02 07:22:43,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:43,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:22:43,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:43,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:22:43,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:22:43,296 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:43,913 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2024-12-02 07:22:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:43,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:22:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:43,915 INFO L225 Difference]: With dead ends: 92 [2024-12-02 07:22:43,915 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 07:22:43,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:43,916 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 28 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:43,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 329 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:22:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 07:22:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 66. [2024-12-02 07:22:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-12-02 07:22:43,922 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 115 [2024-12-02 07:22:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:43,922 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-12-02 07:22:43,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:43,922 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2024-12-02 07:22:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:22:43,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:43,923 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:43,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:44,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:44,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:44,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:44,124 INFO L85 PathProgramCache]: Analyzing trace with hash 317740398, now seen corresponding path program 1 times [2024-12-02 07:22:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:44,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632260879] [2024-12-02 07:22:44,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:44,125 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 07:22:44,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:44,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:44,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:44,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:22:44,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:22:49,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:49,711 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:49,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632260879] [2024-12-02 07:22:49,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632260879] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:49,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:49,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:49,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340286121] [2024-12-02 07:22:49,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:49,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:49,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:49,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:49,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:49,712 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:50,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:50,264 INFO L93 Difference]: Finished difference Result 96 states and 119 transitions. [2024-12-02 07:22:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:50,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:22:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:50,266 INFO L225 Difference]: With dead ends: 96 [2024-12-02 07:22:50,266 INFO L226 Difference]: Without dead ends: 94 [2024-12-02 07:22:50,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:22:50,267 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 39 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:50,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 310 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-12-02 07:22:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 67. [2024-12-02 07:22:50,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 90 transitions. [2024-12-02 07:22:50,277 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 90 transitions. Word has length 115 [2024-12-02 07:22:50,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:50,278 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 90 transitions. [2024-12-02 07:22:50,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 90 transitions. [2024-12-02 07:22:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:22:50,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:50,279 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:50,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:50,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:50,480 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:50,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash 319587440, now seen corresponding path program 1 times [2024-12-02 07:22:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:50,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753417124] [2024-12-02 07:22:50,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:50,480 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 07:22:50,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:50,482 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:50,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 07:22:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:50,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 07:22:50,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:22:57,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:57,838 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:22:57,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753417124] [2024-12-02 07:22:57,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753417124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:57,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:57,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:22:57,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600726461] [2024-12-02 07:22:57,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:57,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:22:57,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:22:57,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:22:57,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:22:57,839 INFO L87 Difference]: Start difference. First operand 67 states and 90 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:58,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:58,416 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2024-12-02 07:22:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:22:58,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:22:58,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:58,418 INFO L225 Difference]: With dead ends: 87 [2024-12-02 07:22:58,418 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 07:22:58,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:58,419 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 26 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:58,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 318 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:22:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 07:22:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 64. [2024-12-02 07:22:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:22:58,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2024-12-02 07:22:58,428 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 115 [2024-12-02 07:22:58,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:58,429 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2024-12-02 07:22:58,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:22:58,429 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2024-12-02 07:22:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:22:58,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:58,430 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:22:58,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 07:22:58,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:58,631 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:58,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:58,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1807145394, now seen corresponding path program 1 times [2024-12-02 07:22:58,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:22:58,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374827050] [2024-12-02 07:22:58,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:58,632 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 07:22:58,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:22:58,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:22:58,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 07:22:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:58,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 07:22:58,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:23:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 07:23:06,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:23:37,117 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:23:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374827050] [2024-12-02 07:23:37,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374827050] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:23:37,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [306812342] [2024-12-02 07:23:37,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:37,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:23:37,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:23:37,120 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:23:37,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-02 07:23:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:37,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:23:37,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:23:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:23:43,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:23:43,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [306812342] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:43,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:23:43,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 18 [2024-12-02 07:23:43,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132457510] [2024-12-02 07:23:43,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:43,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:23:43,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:23:43,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:23:43,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=450, Unknown=1, NotChecked=0, Total=552 [2024-12-02 07:23:43,043 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:23:44,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:23:44,180 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2024-12-02 07:23:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:23:44,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:23:44,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:23:44,182 INFO L225 Difference]: With dead ends: 89 [2024-12-02 07:23:44,182 INFO L226 Difference]: Without dead ends: 87 [2024-12-02 07:23:44,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=125, Invalid=524, Unknown=1, NotChecked=0, Total=650 [2024-12-02 07:23:44,183 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 49 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:23:44,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 348 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:23:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-12-02 07:23:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 67. [2024-12-02 07:23:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:23:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 89 transitions. [2024-12-02 07:23:44,192 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 89 transitions. Word has length 115 [2024-12-02 07:23:44,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:23:44,192 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 89 transitions. [2024-12-02 07:23:44,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:23:44,192 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2024-12-02 07:23:44,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:23:44,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:23:44,194 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:44,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-02 07:23:44,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 07:23:44,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:23:44,594 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:23:44,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:44,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1808992436, now seen corresponding path program 1 times [2024-12-02 07:23:44,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:23:44,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069773313] [2024-12-02 07:23:44,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:23:44,595 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 07:23:44,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:23:44,597 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:23:44,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 (11)] Waiting until timeout for monitored process [2024-12-02 07:23:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:44,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 07:23:44,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:23:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 07:23:54,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:24:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:24:31,368 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:24:31,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069773313] [2024-12-02 07:24:31,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069773313] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:24:31,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:24:31,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-12-02 07:24:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048943450] [2024-12-02 07:24:31,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:24:31,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:24:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:24:31,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:24:31,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:24:31,370 INFO L87 Difference]: Start difference. First operand 67 states and 89 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:24:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:24:40,424 INFO L93 Difference]: Finished difference Result 93 states and 117 transitions. [2024-12-02 07:24:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:24:40,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:24:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:24:40,427 INFO L225 Difference]: With dead ends: 93 [2024-12-02 07:24:40,427 INFO L226 Difference]: Without dead ends: 91 [2024-12-02 07:24:40,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:24:40,427 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 28 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:24:40,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 360 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 07:24:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-12-02 07:24:40,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 66. [2024-12-02 07:24:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:24:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2024-12-02 07:24:40,434 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 115 [2024-12-02 07:24:40,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:24:40,434 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2024-12-02 07:24:40,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:24:40,434 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2024-12-02 07:24:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:24:40,435 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:24:40,435 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:24:40,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 (11)] Ended with exit code 0 [2024-12-02 07:24:40,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:24:40,636 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:24:40,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:40,636 INFO L85 PathProgramCache]: Analyzing trace with hash 997798768, now seen corresponding path program 1 times [2024-12-02 07:24:40,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:24:40,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195415960] [2024-12-02 07:24:40,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:24:40,636 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 07:24:40,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:24:40,638 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:24:40,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 (12)] Waiting until timeout for monitored process [2024-12-02 07:24:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:24:40,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 07:24:40,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:24:50,848 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 07:24:50,848 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:25:27,116 WARN L286 SmtUtils]: Spent 14.68s on a formula simplification. DAG size of input: 171 DAG size of output: 161 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:25:43,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:25:43,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195415960] [2024-12-02 07:25:43,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195415960] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:25:43,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1380072909] [2024-12-02 07:25:43,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:25:43,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:25:43,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:25:43,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:25:43,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-12-02 07:25:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:25:43,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 07:25:43,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:25:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:25:51,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:25:51,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1380072909] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:25:51,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:25:51,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 18 [2024-12-02 07:25:51,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698270509] [2024-12-02 07:25:51,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:25:51,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:25:51,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:25:51,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:25:51,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:25:51,039 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:25:53,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:25:53,353 INFO L93 Difference]: Finished difference Result 87 states and 109 transitions. [2024-12-02 07:25:53,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:25:53,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:25:53,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:25:53,356 INFO L225 Difference]: With dead ends: 87 [2024-12-02 07:25:53,356 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 07:25:53,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:25:53,357 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 26 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:25:53,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 471 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:25:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 07:25:53,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 66. [2024-12-02 07:25:53,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:25:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 87 transitions. [2024-12-02 07:25:53,368 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 87 transitions. Word has length 115 [2024-12-02 07:25:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:25:53,369 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 87 transitions. [2024-12-02 07:25:53,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:25:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 87 transitions. [2024-12-02 07:25:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 07:25:53,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:25:53,370 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:25:53,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 (12)] Forceful destruction successful, exit code 0 [2024-12-02 07:25:53,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-12-02 07:25:53,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 07:25:53,770 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:25:53,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:25:53,771 INFO L85 PathProgramCache]: Analyzing trace with hash 999645810, now seen corresponding path program 1 times [2024-12-02 07:25:53,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:25:53,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853425010] [2024-12-02 07:25:53,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:25:53,771 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 07:25:53,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:25:53,772 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:25:53,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 (14)] Waiting until timeout for monitored process [2024-12-02 07:25:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:25:53,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 07:25:53,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:26:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 07:26:04,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:26:35,709 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse34 ((_ zero_extend 24) c_~var_1_9~0)) (.cse38 ((_ zero_extend 24) c_~var_1_12~0))) (let ((.cse20 (= .cse34 .cse38)) (.cse30 ((_ zero_extend 24) c_~var_1_7~0)) (.cse32 (fp.leq (fp.neg c_~var_1_2~0) c_~var_1_10~0)) (.cse41 ((_ zero_extend 24) c_~var_1_5~0)) (.cse17 (bvsgt .cse34 (bvmul (_ bv32 32) (bvsdiv .cse34 (_ bv4294967040 32))))) (.cse33 ((_ sign_extend 16) c_~var_1_1~0)) (.cse24 (= (_ bv0 8) c_~var_1_6~0))) (let ((.cse25 (not .cse24)) (.cse13 (= ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv10 32) (bvneg .cse34)))) .cse33)) (.cse11 (forall ((~var_1_15~0 (_ BitVec 8)) (~var_1_14~0 (_ BitVec 8)) (~var_1_13~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse44 (bvadd ((_ zero_extend 24) ~var_1_14~0) ((_ zero_extend 24) ~var_1_15~0)))) (or (bvslt (bvadd (bvneg ((_ zero_extend 24) ~var_1_13~0)) .cse38 ((_ zero_extend 24) ~var_1_11~0)) .cse44) (= .cse34 ((_ zero_extend 24) ((_ extract 7 0) .cse44))))))) (.cse15 (forall ((~var_1_15~0 (_ BitVec 8)) (~var_1_14~0 (_ BitVec 8)) (~var_1_13~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse43 (bvadd (bvneg ((_ zero_extend 24) ~var_1_13~0)) .cse38 ((_ zero_extend 24) ~var_1_11~0)))) (or (not (bvslt .cse43 (bvadd ((_ zero_extend 24) ~var_1_14~0) ((_ zero_extend 24) ~var_1_15~0)))) (= .cse34 ((_ zero_extend 24) ((_ extract 7 0) .cse43))))))) (.cse6 (forall ((~var_1_15~0 (_ BitVec 8)) (~var_1_14~0 (_ BitVec 8)) (~var_1_13~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (not (bvslt (bvadd (bvneg ((_ zero_extend 24) ~var_1_13~0)) .cse38 ((_ zero_extend 24) ~var_1_11~0)) (bvadd ((_ zero_extend 24) ~var_1_14~0) ((_ zero_extend 24) ~var_1_15~0)))))) (.cse8 (forall ((~var_1_15~0 (_ BitVec 8)) (~var_1_14~0 (_ BitVec 8)) (~var_1_13~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse42 (bvadd ((_ zero_extend 24) ~var_1_14~0) ((_ zero_extend 24) ~var_1_15~0)))) (or (not (= .cse34 ((_ zero_extend 24) ((_ extract 7 0) .cse42)))) (bvslt (bvadd (bvneg ((_ zero_extend 24) ~var_1_13~0)) .cse38 ((_ zero_extend 24) ~var_1_11~0)) .cse42))))) (.cse14 (not .cse17)) (.cse5 (= (_ bv0 8) c_~var_1_7~0)) (.cse9 (= (_ bv1 32) .cse41)) (.cse22 (not .cse32)) (.cse31 (= .cse41 .cse30)) (.cse23 (or .cse32 .cse20)) (.cse0 (fp.lt c_~var_1_2~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 255.0 4.0))))) (and (or .cse0 (let ((.cse21 (= .cse33 ((_ sign_extend 16) ((_ extract 15 0) (bvadd .cse34 (_ bv4 32))))))) (let ((.cse1 (not .cse13)) (.cse2 (or .cse17 .cse6)) (.cse3 (or .cse6 .cse21)) (.cse4 (or .cse6 .cse32 .cse20)) (.cse10 (or .cse15 (and .cse20 .cse22))) (.cse18 (and .cse31 .cse23 .cse21)) (.cse19 (and .cse31 .cse20 .cse21 .cse22))) (and (or (let ((.cse7 (and .cse5 .cse23 .cse21 .cse9)) (.cse12 (and .cse5 .cse20 .cse21 .cse22 .cse9))) (and (or .cse1 (and .cse2 .cse3 .cse4 (or .cse5 .cse6) (or .cse7 .cse8) (or .cse6 .cse9) .cse10 (or .cse11 .cse12))) (or .cse13 (let ((.cse16 (and (or .cse14 .cse12) (or .cse17 .cse19)))) (and (or .cse7 .cse14 .cse6) (or .cse15 .cse16) (or .cse8 (and (or .cse7 .cse14) (or .cse17 .cse18))) (or .cse17 .cse18 .cse6) (or .cse11 .cse16)))))) .cse24) (or .cse25 (let ((.cse26 (or .cse11 .cse19)) (.cse27 (or .cse31 .cse6)) (.cse28 (or .cse6 (= (_ bv1 32) .cse30) (not .cse9))) (.cse29 (or .cse18 .cse8))) (and (or .cse1 (and .cse2 .cse26 .cse3 .cse4 .cse27 .cse10 .cse28 .cse29)) (or .cse13 (and .cse26 .cse3 .cse4 .cse27 .cse10 .cse28 .cse29))))))))) (or (let ((.cse35 (and .cse31 .cse23)) (.cse36 (and .cse31 .cse20 .cse22))) (and (or .cse25 (and (or .cse35 .cse8) (or .cse11 .cse36) .cse13 (or .cse35 (forall ((~var_1_15~0 (_ BitVec 8)) (~var_1_14~0 (_ BitVec 8)) (~var_1_13~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse37 (bvadd (bvneg ((_ zero_extend 24) ~var_1_13~0)) .cse38 ((_ zero_extend 24) ~var_1_11~0)))) (or (not (bvslt .cse37 (bvadd ((_ zero_extend 24) ~var_1_14~0) ((_ zero_extend 24) ~var_1_15~0)))) (not (= .cse34 ((_ zero_extend 24) ((_ extract 7 0) .cse37)))))))) (or .cse15 .cse36))) (or (let ((.cse39 (and (or .cse17 .cse36) (or .cse14 (and .cse5 .cse20 .cse22 .cse9)))) (.cse40 (and .cse5 .cse23 .cse9))) (and (or .cse17 .cse35 .cse6) .cse13 (or .cse11 .cse39) (or .cse39 .cse15) (or .cse14 .cse6 .cse40) (or (and (or .cse14 .cse40) (or .cse17 .cse35)) .cse8))) .cse24))) (not .cse0)))))) is different from false [2024-12-02 07:26:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:26:44,397 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:26:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853425010] [2024-12-02 07:26:44,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853425010] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:26:44,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:26:44,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-12-02 07:26:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358876216] [2024-12-02 07:26:44,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:26:44,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:26:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:26:44,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:26:44,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=220, Unknown=1, NotChecked=30, Total=306 [2024-12-02 07:26:44,398 INFO L87 Difference]: Start difference. First operand 66 states and 87 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:26:54,858 WARN L286 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 163 DAG size of output: 163 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:26:58,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:26:58,552 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2024-12-02 07:26:58,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:26:58,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-12-02 07:26:58,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:26:58,555 INFO L225 Difference]: With dead ends: 83 [2024-12-02 07:26:58,555 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 07:26:58,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=70, Invalid=313, Unknown=1, NotChecked=36, Total=420 [2024-12-02 07:26:58,555 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 19 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:26:58,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 320 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 51 Unchecked, 1.3s Time] [2024-12-02 07:26:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 07:26:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 07:26:58,556 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 07:26:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 07:26:58,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2024-12-02 07:26:58,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:26:58,556 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 07:26:58,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:26:58,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 07:26:58,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 07:26:58,558 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:26:58,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 (14)] Forceful destruction successful, exit code 0 [2024-12-02 07:26:58,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/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 07:26:58,761 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:26:58,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 07:27:05,367 WARN L286 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 242 DAG size of output: 345 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 07:27:44,278 WARN L286 SmtUtils]: Spent 38.06s on a formula simplification. DAG size of input: 345 DAG size of output: 7 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 07:27:51,241 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:27:51,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:27:51 BoogieIcfgContainer [2024-12-02 07:27:51,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:27:51,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:27:51,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:27:51,252 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:27:51,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:08" (3/4) ... [2024-12-02 07:27:51,255 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:27:51,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 07:27:51,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 07:27:51,264 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 07:27:51,264 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 07:27:51,264 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 07:27:51,340 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:27:51,340 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:27:51,340 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:27:51,341 INFO L158 Benchmark]: Toolchain (without parser) took 343096.02ms. Allocated memory was 92.3MB in the beginning and 788.5MB in the end (delta: 696.3MB). Free memory was 69.8MB in the beginning and 393.7MB in the end (delta: -323.9MB). Peak memory consumption was 371.0MB. Max. memory is 16.1GB. [2024-12-02 07:27:51,341 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:27:51,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.35ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 56.5MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:27:51,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.50ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 54.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:27:51,342 INFO L158 Benchmark]: Boogie Preprocessor took 33.45ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 52.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:27:51,342 INFO L158 Benchmark]: RCFGBuilder took 291.47ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 67.5MB in the end (delta: -14.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-02 07:27:51,342 INFO L158 Benchmark]: TraceAbstraction took 342446.06ms. Allocated memory was 92.3MB in the beginning and 788.5MB in the end (delta: 696.3MB). Free memory was 66.9MB in the beginning and 398.2MB in the end (delta: -331.3MB). Peak memory consumption was 477.0MB. Max. memory is 16.1GB. [2024-12-02 07:27:51,342 INFO L158 Benchmark]: Witness Printer took 88.16ms. Allocated memory is still 788.5MB. Free memory was 398.2MB in the beginning and 393.7MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:27:51,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.35ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 56.5MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.50ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 54.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.45ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 52.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 291.47ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 67.5MB in the end (delta: -14.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * TraceAbstraction took 342446.06ms. Allocated memory was 92.3MB in the beginning and 788.5MB in the end (delta: 696.3MB). Free memory was 66.9MB in the beginning and 398.2MB in the end (delta: -331.3MB). Peak memory consumption was 477.0MB. Max. memory is 16.1GB. * Witness Printer took 88.16ms. Allocated memory is still 788.5MB. Free memory was 398.2MB in the beginning and 393.7MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 289.9s, OverallIterations: 11, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 514 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 502 mSDsluCounter, 3753 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 51 IncrementalHoareTripleChecker+Unchecked, 2891 mSDsCounter, 144 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1515 IncrementalHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 144 mSolverCounterUnsat, 862 mSDtfsCounter, 1515 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1889 GetRequests, 1721 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 71.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=6, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 325 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 254.4s InterpolantComputationTime, 1492 NumberOfCodeBlocks, 1492 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1820 ConstructedInterpolants, 10 QuantifiedInterpolants, 14344 SizeOfPredicates, 185 NumberOfNonLiveVariables, 2363 ConjunctsInSsa, 175 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 9591/9792 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((var_1_12 <= 127) && (var_1_12 >= 64)) RESULT: Ultimate proved your program to be correct! [2024-12-02 07:27:51,552 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-12-02 07:27:51,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8196c3de-7457-42ae-8fea-10c7b4ef6681/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE