./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.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_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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_a4c912f8-4f26-4697-91dc-d8132e869365/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 a85c63270a82c8ef0a288aa71699029145198375482b0774861abf1408115eb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:00:29,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:00:29,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:00:29,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:00:29,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:00:29,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:00:29,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:00:29,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:00:29,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:00:29,254 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:00:29,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:00:29,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:00:29,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:00:29,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:00:29,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:00:29,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:00:29,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:00:29,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:00:29,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:00:29,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:00:29,257 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_a4c912f8-4f26-4697-91dc-d8132e869365/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 -> a85c63270a82c8ef0a288aa71699029145198375482b0774861abf1408115eb1 [2024-12-02 08:00:29,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:00:29,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:00:29,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:00:29,485 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:00:29,486 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:00:29,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i [2024-12-02 08:00:32,126 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/04b023800/619a1a9e91094f4fb4486733c1a3a1ad/FLAG19722a0b6 [2024-12-02 08:00:32,329 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:00:32,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i [2024-12-02 08:00:32,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/04b023800/619a1a9e91094f4fb4486733c1a3a1ad/FLAG19722a0b6 [2024-12-02 08:00:32,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/04b023800/619a1a9e91094f4fb4486733c1a3a1ad [2024-12-02 08:00:32,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:00:32,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:00:32,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:00:32,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:00:32,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:00:32,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e244c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32, skipping insertion in model container [2024-12-02 08:00:32,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:00:32,475 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i[919,932] [2024-12-02 08:00:32,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:00:32,533 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:00:32,541 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_a4c912f8-4f26-4697-91dc-d8132e869365/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i[919,932] [2024-12-02 08:00:32,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:00:32,577 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:00:32,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32 WrapperNode [2024-12-02 08:00:32,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:00:32,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:00:32,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:00:32,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:00:32,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,624 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-12-02 08:00:32,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:00:32,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:00:32,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:00:32,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:00:32,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,649 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 08:00:32,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:00:32,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:00:32,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:00:32,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:00:32,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (1/1) ... [2024-12-02 08:00:32,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:00:32,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:00:32,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:00:32,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:00:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:00:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:00:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:00:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:00:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:00:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:00:32,767 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:00:32,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:00:33,004 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 08:00:33,004 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:00:33,012 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:00:33,012 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:00:33,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:00:33 BoogieIcfgContainer [2024-12-02 08:00:33,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:00:33,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:00:33,015 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:00:33,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:00:33,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:00:32" (1/3) ... [2024-12-02 08:00:33,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7323099f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:00:33, skipping insertion in model container [2024-12-02 08:00:33,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:32" (2/3) ... [2024-12-02 08:00:33,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7323099f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:00:33, skipping insertion in model container [2024-12-02 08:00:33,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:00:33" (3/3) ... [2024-12-02 08:00:33,021 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-42.i [2024-12-02 08:00:33,032 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:00:33,033 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-42.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:00:33,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:00:33,089 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;@53387f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:00:33,089 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:00:33,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 08:00:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 08:00:33,098 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:33,099 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:33,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:33,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:33,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1418780733, now seen corresponding path program 1 times [2024-12-02 08:00:33,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:33,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065841380] [2024-12-02 08:00:33,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:33,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 08:00:33,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:33,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065841380] [2024-12-02 08:00:33,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065841380] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:00:33,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471104078] [2024-12-02 08:00:33,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:33,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:33,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:00:33,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:00:33,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:00:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:33,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:00:33,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 08:00:33,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:00:33,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471104078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:33,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:00:33,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:00:33,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401944650] [2024-12-02 08:00:33,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:33,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:00:33,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:33,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:00:33,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:00:33,472 INFO L87 Difference]: Start difference. First operand has 49 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:00:33,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:33,488 INFO L93 Difference]: Finished difference Result 91 states and 154 transitions. [2024-12-02 08:00:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:00:33,489 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2024-12-02 08:00:33,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:33,493 INFO L225 Difference]: With dead ends: 91 [2024-12-02 08:00:33,494 INFO L226 Difference]: Without dead ends: 45 [2024-12-02 08:00:33,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:00:33,499 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:33,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:00:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-12-02 08:00:33,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-12-02 08:00:33,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 08:00:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2024-12-02 08:00:33,530 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 83 [2024-12-02 08:00:33,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:33,531 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2024-12-02 08:00:33,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:00:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2024-12-02 08:00:33,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 08:00:33,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:33,534 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:33,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:00:33,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:33,735 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:33,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1590152577, now seen corresponding path program 1 times [2024-12-02 08:00:33,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:33,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060672835] [2024-12-02 08:00:33,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 08:00:34,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:34,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060672835] [2024-12-02 08:00:34,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060672835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:34,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:34,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:00:34,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245008059] [2024-12-02 08:00:34,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:34,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:00:34,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:34,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:00:34,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:00:34,073 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:34,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:34,190 INFO L93 Difference]: Finished difference Result 130 states and 193 transitions. [2024-12-02 08:00:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:00:34,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2024-12-02 08:00:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:34,193 INFO L225 Difference]: With dead ends: 130 [2024-12-02 08:00:34,193 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 08:00:34,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:00:34,195 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 60 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:34,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 180 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:00:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 08:00:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 71. [2024-12-02 08:00:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:00:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 103 transitions. [2024-12-02 08:00:34,210 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 103 transitions. Word has length 83 [2024-12-02 08:00:34,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:34,210 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 103 transitions. [2024-12-02 08:00:34,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:34,211 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2024-12-02 08:00:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:00:34,212 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:34,212 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:34,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:00:34,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:34,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash -944077514, now seen corresponding path program 1 times [2024-12-02 08:00:34,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:34,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225525188] [2024-12-02 08:00:34,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:34,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 08:00:34,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225525188] [2024-12-02 08:00:34,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225525188] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:34,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:34,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:00:34,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607103687] [2024-12-02 08:00:34,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:34,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:00:34,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:34,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:00:34,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:00:34,450 INFO L87 Difference]: Start difference. First operand 71 states and 103 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:34,629 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2024-12-02 08:00:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:00:34,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 84 [2024-12-02 08:00:34,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:34,632 INFO L225 Difference]: With dead ends: 169 [2024-12-02 08:00:34,633 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 08:00:34,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:00:34,634 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 65 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:34,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 183 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:00:34,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 08:00:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2024-12-02 08:00:34,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:00:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 164 transitions. [2024-12-02 08:00:34,661 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 164 transitions. Word has length 84 [2024-12-02 08:00:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:34,662 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 164 transitions. [2024-12-02 08:00:34,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 164 transitions. [2024-12-02 08:00:34,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:00:34,663 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:34,663 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:34,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:00:34,664 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:34,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash -243012936, now seen corresponding path program 1 times [2024-12-02 08:00:34,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:34,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247838965] [2024-12-02 08:00:34,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:34,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 51 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 08:00:35,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247838965] [2024-12-02 08:00:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247838965] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:00:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259634270] [2024-12-02 08:00:35,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:35,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:35,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:00:35,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:00:35,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:00:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:35,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:00:35,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 9 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 08:00:35,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:00:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 51 proven. 12 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 08:00:35,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259634270] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:00:35,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:00:35,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 15 [2024-12-02 08:00:35,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070807005] [2024-12-02 08:00:35,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:00:35,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:00:35,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:35,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:00:35,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:00:35,691 INFO L87 Difference]: Start difference. First operand 111 states and 164 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:00:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:36,547 INFO L93 Difference]: Finished difference Result 391 states and 537 transitions. [2024-12-02 08:00:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-12-02 08:00:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 84 [2024-12-02 08:00:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:36,550 INFO L225 Difference]: With dead ends: 391 [2024-12-02 08:00:36,551 INFO L226 Difference]: Without dead ends: 309 [2024-12-02 08:00:36,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=1410, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 08:00:36,553 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 168 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:36,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 382 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:00:36,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-12-02 08:00:36,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 187. [2024-12-02 08:00:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 126 states have internal predecessors, (156), 48 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 08:00:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 252 transitions. [2024-12-02 08:00:36,602 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 252 transitions. Word has length 84 [2024-12-02 08:00:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:36,603 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 252 transitions. [2024-12-02 08:00:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 08:00:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 252 transitions. [2024-12-02 08:00:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:00:36,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:36,604 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:36,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:00:36,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:36,805 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:36,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash -636039946, now seen corresponding path program 1 times [2024-12-02 08:00:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:36,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256780770] [2024-12-02 08:00:36,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:36,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:00:36,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648665355] [2024-12-02 08:00:36,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:36,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:36,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:00:36,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:00:36,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:00:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:36,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:00:36,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:37,287 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 08:00:37,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:00:37,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:00:37,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256780770] [2024-12-02 08:00:37,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:00:37,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648665355] [2024-12-02 08:00:37,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648665355] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:00:37,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:00:37,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-12-02 08:00:37,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876962584] [2024-12-02 08:00:37,822 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 08:00:37,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:00:37,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:00:37,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:00:37,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:00:37,823 INFO L87 Difference]: Start difference. First operand 187 states and 252 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:00:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:38,164 INFO L93 Difference]: Finished difference Result 562 states and 743 transitions. [2024-12-02 08:00:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:00:38,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2024-12-02 08:00:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:38,169 INFO L225 Difference]: With dead ends: 562 [2024-12-02 08:00:38,169 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 08:00:38,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:00:38,171 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 107 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:38,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 281 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:00:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 08:00:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 350. [2024-12-02 08:00:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 240 states have (on average 1.2166666666666666) internal successors, (292), 240 states have internal predecessors, (292), 84 states have call successors, (84), 25 states have call predecessors, (84), 25 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 08:00:38,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 460 transitions. [2024-12-02 08:00:38,227 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 460 transitions. Word has length 84 [2024-12-02 08:00:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:38,228 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 460 transitions. [2024-12-02 08:00:38,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:00:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 460 transitions. [2024-12-02 08:00:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 08:00:38,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:38,229 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:38,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 08:00:38,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:38,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:38,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:38,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1540376711, now seen corresponding path program 1 times [2024-12-02 08:00:38,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:00:38,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76034616] [2024-12-02 08:00:38,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:38,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:00:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:00:38,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759277394] [2024-12-02 08:00:38,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:38,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:00:38,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:00:38,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:00:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:00:38,564 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:00:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:00:38,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:00:38,632 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:00:38,633 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:00:38,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:00:38,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:00:38,837 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 08:00:38,889 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:00:38,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:00:38 BoogieIcfgContainer [2024-12-02 08:00:38,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:00:38,892 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:00:38,892 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:00:38,893 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:00:38,893 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:00:33" (3/4) ... [2024-12-02 08:00:38,895 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:00:38,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:00:38,896 INFO L158 Benchmark]: Toolchain (without parser) took 6541.56ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 93.1MB in the beginning and 83.6MB in the end (delta: 9.5MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2024-12-02 08:00:38,896 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:00:38,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.83ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 79.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:00:38,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.58ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:00:38,897 INFO L158 Benchmark]: Boogie Preprocessor took 41.75ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 71.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:00:38,897 INFO L158 Benchmark]: RCFGBuilder took 345.82ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 52.8MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:00:38,898 INFO L158 Benchmark]: TraceAbstraction took 5876.95ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 52.3MB in the beginning and 83.7MB in the end (delta: -31.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-12-02 08:00:38,898 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 201.3MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 39.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:00:38,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.83ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 79.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.58ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.75ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 71.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 345.82ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 52.8MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5876.95ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 52.3MB in the beginning and 83.7MB in the end (delta: -31.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 201.3MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 39.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 52, overapproximation of someBinaryFLOATComparisonOperation at line 115, overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 77, overapproximation of someBinaryFLOATComparisonOperation at line 101, overapproximation of someUnaryDOUBLEoperation at line 30. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed char var_1_5 = -8; [L24] unsigned char var_1_6 = 10; [L25] unsigned char var_1_7 = 128; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 0; [L29] signed short int var_1_13 = 200; [L30] float var_1_14 = -0.8; [L31] float var_1_15 = 127.25; [L32] float var_1_16 = 3.5; [L33] unsigned short int var_1_17 = 16; [L34] unsigned char var_1_19 = 1; [L35] unsigned char var_1_20 = 0; [L36] signed short int last_1_var_1_1 = 16; [L37] unsigned char last_1_var_1_6 = 10; [L38] unsigned char last_1_var_1_8 = 1; [L39] signed short int last_1_var_1_13 = 200; VAL [isInitial=0, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-8, var_1_6=10, var_1_7=128, var_1_8=1] [L119] isInitial = 1 [L120] FCALL initially() [L122] CALL updateLastVariables() [L109] last_1_var_1_1 = var_1_1 [L110] last_1_var_1_6 = var_1_6 [L111] last_1_var_1_8 = var_1_8 [L112] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-8, var_1_6=10, var_1_7=128, var_1_8=1] [L122] RET updateLastVariables() [L123] CALL updateVariables() [L88] var_1_5 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_5 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L89] RET assume_abort_if_not(var_1_5 >= -127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L90] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L90] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=128, var_1_8=1] [L91] var_1_7 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_7 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L92] RET assume_abort_if_not(var_1_7 >= 127) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L93] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L93] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=0, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L94] var_1_11 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L95] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L96] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L96] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L97] var_1_12 = __VERIFIER_nondet_uchar() [L98] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L98] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L99] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L99] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_15=509/4, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L100] var_1_15 = __VERIFIER_nondet_float() [L101] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L101] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_16=7/2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L102] var_1_16 = __VERIFIER_nondet_float() [L103] CALL assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L103] RET assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L104] var_1_20 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L105] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L106] CALL assume_abort_if_not(var_1_20 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L106] RET assume_abort_if_not(var_1_20 <= 0) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L123] RET updateVariables() [L124] CALL step() [L43] COND TRUE (((((last_1_var_1_1) < (8)) ? (last_1_var_1_1) : (8))) <= var_1_5) || last_1_var_1_8 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L44] COND FALSE !(last_1_var_1_1 <= last_1_var_1_6) [L47] var_1_14 = var_1_16 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L52] COND FALSE !(var_1_14 <= var_1_15) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=10, var_1_7=-313, var_1_8=1] [L55] COND TRUE var_1_5 >= -2 [L56] var_1_6 = (var_1_7 - 100) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=1] [L58] COND TRUE last_1_var_1_13 >= (var_1_6 / var_1_7) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=200, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=1] [L59] COND TRUE var_1_6 != ((((((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) > (var_1_5)) ? (((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) : (var_1_5))) [L60] var_1_13 = var_1_7 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=1] [L67] COND FALSE !(var_1_6 > var_1_6) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=16, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=1] [L70] COND TRUE \read(var_1_19) [L71] var_1_1 = ((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=99, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=1] [L77] COND FALSE !((49.5f <= var_1_14) && (var_1_19 && var_1_19)) [L84] var_1_8 = var_1_12 VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=99, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=0] [L124] RET step() [L125] CALL, EXPR property() [L115-L116] return ((((((var_1_19 ? (var_1_1 == ((signed short int) ((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) : ((((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) >= var_1_6) ? (var_1_1 == ((signed short int) var_1_5)) : 1)) && ((var_1_5 >= -2) ? (var_1_6 == ((unsigned char) (var_1_7 - 100))) : 1)) && (((49.5f <= var_1_14) && (var_1_19 && var_1_19)) ? ((var_1_13 < var_1_7) ? (var_1_8 == ((unsigned char) (var_1_19 || var_1_11))) : (var_1_8 == ((unsigned char) var_1_11))) : (var_1_8 == ((unsigned char) var_1_12)))) && ((last_1_var_1_13 >= (var_1_6 / var_1_7)) ? ((var_1_6 != ((((((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) > (var_1_5)) ? (((((var_1_6) > (last_1_var_1_13)) ? (var_1_6) : (last_1_var_1_13)))) : (var_1_5)))) ? (var_1_13 == ((signed short int) var_1_7)) : (var_1_13 == ((signed short int) last_1_var_1_13))) : (var_1_13 == ((signed short int) var_1_6)))) && (((((((last_1_var_1_1) < (8)) ? (last_1_var_1_1) : (8))) <= var_1_5) || last_1_var_1_8) ? ((last_1_var_1_1 <= last_1_var_1_6) ? (var_1_14 == ((float) (var_1_15 + var_1_16))) : (var_1_14 == ((float) var_1_16))) : (var_1_14 == ((float) var_1_16)))) && ((var_1_6 > var_1_6) ? (var_1_17 == ((unsigned short int) ((((25) > ((var_1_13 + var_1_6))) ? (25) : ((var_1_13 + var_1_6)))))) : 1)) && ((var_1_14 <= var_1_15) ? (var_1_19 == ((unsigned char) (var_1_12 || var_1_20))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=99, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=0] [L125] RET, EXPR property() [L125] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=99, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=200, last_1_var_1_1=16, last_1_var_1_6=10, last_1_var_1_8=1, var_1_11=1, var_1_12=0, var_1_13=199, var_1_14=2, var_1_16=2, var_1_17=16, var_1_19=1, var_1_1=99, var_1_20=0, var_1_5=-2, var_1_6=99, var_1_7=-313, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 414 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 400 mSDsluCounter, 1092 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 754 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 629 IncrementalHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 338 mSDtfsCounter, 629 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 461 GetRequests, 394 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=5, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 222 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 661 ConstructedInterpolants, 0 QuantifiedInterpolants, 1922 SizeOfPredicates, 8 NumberOfNonLiveVariables, 653 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 2033/2112 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 08:00:38,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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_a4c912f8-4f26-4697-91dc-d8132e869365/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 a85c63270a82c8ef0a288aa71699029145198375482b0774861abf1408115eb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:00:40,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:00:40,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:00:40,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:00:40,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:00:40,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:00:40,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:00:40,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:00:40,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:00:40,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:00:40,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:00:40,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:00:40,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:00:40,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:00:40,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:00:40,942 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:00:40,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:00:40,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:00:40,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:00:40,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:00:40,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:00:40,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:00:40,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:00:40,945 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_a4c912f8-4f26-4697-91dc-d8132e869365/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 -> a85c63270a82c8ef0a288aa71699029145198375482b0774861abf1408115eb1 [2024-12-02 08:00:41,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:00:41,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:00:41,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:00:41,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:00:41,178 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:00:41,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i [2024-12-02 08:00:43,883 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/f3f4ea97d/20508812d1fa43588da65bb3b6b4d5b9/FLAG786e66208 [2024-12-02 08:00:44,058 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:00:44,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i [2024-12-02 08:00:44,065 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/f3f4ea97d/20508812d1fa43588da65bb3b6b4d5b9/FLAG786e66208 [2024-12-02 08:00:44,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/data/f3f4ea97d/20508812d1fa43588da65bb3b6b4d5b9 [2024-12-02 08:00:44,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:00:44,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:00:44,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:00:44,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:00:44,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:00:44,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5155ee9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44, skipping insertion in model container [2024-12-02 08:00:44,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:00:44,547 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_a4c912f8-4f26-4697-91dc-d8132e869365/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i[919,932] [2024-12-02 08:00:44,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:00:44,595 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:00:44,602 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_a4c912f8-4f26-4697-91dc-d8132e869365/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-42.i[919,932] [2024-12-02 08:00:44,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:00:44,633 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:00:44,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44 WrapperNode [2024-12-02 08:00:44,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:00:44,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:00:44,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:00:44,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:00:44,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,663 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2024-12-02 08:00:44,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:00:44,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:00:44,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:00:44,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:00:44,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,687 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 08:00:44,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,695 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:00:44,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:00:44,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:00:44,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:00:44,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (1/1) ... [2024-12-02 08:00:44,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:00:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:00:44,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:00:44,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:00:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:00:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:00:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:00:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:00:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:00:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:00:44,812 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:00:44,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:00:45,196 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 08:00:45,196 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:00:45,204 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:00:45,204 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:00:45,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:00:45 BoogieIcfgContainer [2024-12-02 08:00:45,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:00:45,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:00:45,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:00:45,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:00:45,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:00:44" (1/3) ... [2024-12-02 08:00:45,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c1362a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:00:45, skipping insertion in model container [2024-12-02 08:00:45,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:00:44" (2/3) ... [2024-12-02 08:00:45,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c1362a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:00:45, skipping insertion in model container [2024-12-02 08:00:45,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:00:45" (3/3) ... [2024-12-02 08:00:45,212 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-42.i [2024-12-02 08:00:45,223 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:00:45,224 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-42.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:00:45,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:00:45,273 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;@55423009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:00:45,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:00:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 08:00:45,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 08:00:45,282 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:45,283 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:45,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:45,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:45,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1418780733, now seen corresponding path program 1 times [2024-12-02 08:00:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:00:45,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762469158] [2024-12-02 08:00:45,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:45,296 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 08:00:45,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:00:45,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:45,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:45,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:00:45,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 08:00:45,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:00:45,546 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:00:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762469158] [2024-12-02 08:00:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762469158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:45,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:45,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:00:45,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356586138] [2024-12-02 08:00:45,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:45,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:00:45,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:00:45,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:00:45,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:00:45,567 INFO L87 Difference]: Start difference. First operand has 49 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 35 states have internal predecessors, (50), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:00:45,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:45,583 INFO L93 Difference]: Finished difference Result 91 states and 154 transitions. [2024-12-02 08:00:45,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:00:45,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2024-12-02 08:00:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:45,589 INFO L225 Difference]: With dead ends: 91 [2024-12-02 08:00:45,589 INFO L226 Difference]: Without dead ends: 45 [2024-12-02 08:00:45,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:00:45,593 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:45,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:00:45,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-12-02 08:00:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-12-02 08:00:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 08:00:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2024-12-02 08:00:45,625 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 83 [2024-12-02 08:00:45,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:45,625 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2024-12-02 08:00:45,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 08:00:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2024-12-02 08:00:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 08:00:45,628 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:45,628 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:45,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 08:00:45,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:45,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:45,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1590152577, now seen corresponding path program 1 times [2024-12-02 08:00:45,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:00:45,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093032950] [2024-12-02 08:00:45,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:45,830 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 08:00:45,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:00:45,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:45,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:45,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:00:45,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 08:00:46,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:00:46,257 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:00:46,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093032950] [2024-12-02 08:00:46,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093032950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:46,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:46,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:00:46,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368039605] [2024-12-02 08:00:46,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:46,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:00:46,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:00:46,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:00:46,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:00:46,260 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:46,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:46,668 INFO L93 Difference]: Finished difference Result 130 states and 193 transitions. [2024-12-02 08:00:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:00:46,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2024-12-02 08:00:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:46,675 INFO L225 Difference]: With dead ends: 130 [2024-12-02 08:00:46,675 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 08:00:46,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:00:46,676 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 57 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:46,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 180 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:00:46,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 08:00:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 71. [2024-12-02 08:00:46,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 44 states have (on average 1.25) internal successors, (55), 44 states have internal predecessors, (55), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 08:00:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 103 transitions. [2024-12-02 08:00:46,690 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 103 transitions. Word has length 83 [2024-12-02 08:00:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:46,690 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 103 transitions. [2024-12-02 08:00:46,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2024-12-02 08:00:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:00:46,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:46,692 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:46,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:46,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:46,892 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:46,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash -944077514, now seen corresponding path program 1 times [2024-12-02 08:00:46,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:00:46,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087641583] [2024-12-02 08:00:46,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:46,894 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 08:00:46,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:00:46,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:46,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:47,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:00:47,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 08:00:47,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:00:47,576 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:00:47,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087641583] [2024-12-02 08:00:47,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087641583] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:00:47,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:00:47,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:00:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714359722] [2024-12-02 08:00:47,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:00:47,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:00:47,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:00:47,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:00:47,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:00:47,578 INFO L87 Difference]: Start difference. First operand 71 states and 103 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:48,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:48,088 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2024-12-02 08:00:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:00:48,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 84 [2024-12-02 08:00:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:48,091 INFO L225 Difference]: With dead ends: 169 [2024-12-02 08:00:48,091 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 08:00:48,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:00:48,092 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 62 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:48,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 181 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:00:48,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 08:00:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2024-12-02 08:00:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:00:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 164 transitions. [2024-12-02 08:00:48,113 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 164 transitions. Word has length 84 [2024-12-02 08:00:48,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:48,114 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 164 transitions. [2024-12-02 08:00:48,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 08:00:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 164 transitions. [2024-12-02 08:00:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:00:48,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:48,115 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:48,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:48,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:48,316 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:48,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:48,317 INFO L85 PathProgramCache]: Analyzing trace with hash -243012936, now seen corresponding path program 1 times [2024-12-02 08:00:48,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:00:48,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201345880] [2024-12-02 08:00:48,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:48,317 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 08:00:48,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:00:48,319 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:48,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:48,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:00:48,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 9 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 08:00:48,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:00:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 51 proven. 12 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 08:00:48,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:00:48,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201345880] [2024-12-02 08:00:48,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201345880] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:00:48,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:00:48,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2024-12-02 08:00:48,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762772393] [2024-12-02 08:00:48,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:00:48,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:00:48,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:00:48,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:00:48,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:00:48,966 INFO L87 Difference]: Start difference. First operand 111 states and 164 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 08:00:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:00:49,897 INFO L93 Difference]: Finished difference Result 295 states and 405 transitions. [2024-12-02 08:00:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 08:00:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 84 [2024-12-02 08:00:49,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:00:49,900 INFO L225 Difference]: With dead ends: 295 [2024-12-02 08:00:49,901 INFO L226 Difference]: Without dead ends: 213 [2024-12-02 08:00:49,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:00:49,903 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 173 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:00:49,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 241 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:00:49,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-12-02 08:00:49,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 187. [2024-12-02 08:00:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 126 states have internal predecessors, (156), 48 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 08:00:49,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 252 transitions. [2024-12-02 08:00:49,931 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 252 transitions. Word has length 84 [2024-12-02 08:00:49,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:00:49,932 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 252 transitions. [2024-12-02 08:00:49,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 08:00:49,932 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 252 transitions. [2024-12-02 08:00:49,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 08:00:49,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:00:49,933 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:49,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:50,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:50,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:00:50,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:00:50,135 INFO L85 PathProgramCache]: Analyzing trace with hash -636039946, now seen corresponding path program 1 times [2024-12-02 08:00:50,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:00:50,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824363379] [2024-12-02 08:00:50,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:50,135 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 08:00:50,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:00:50,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:50,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/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 08:00:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:50,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:00:50,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:00:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 87 proven. 27 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 08:00:50,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:00:50,905 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:00:50,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824363379] [2024-12-02 08:00:50,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824363379] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:00:50,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1604983875] [2024-12-02 08:00:50,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:00:50,905 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:00:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:00:50,907 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:00:50,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4c912f8-4f26-4697-91dc-d8132e869365/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-02 08:00:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:00:51,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:00:51,308 INFO L279 TraceCheckSpWp]: Computing forward predicates...