./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension2-2.c --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_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/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_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/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_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/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 f55631880498cb5413deabbfbce35cfd825fe7b4c570de963a68b466888b738a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:59:47,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:59:47,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:59:47,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:59:47,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:59:47,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:59:47,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:59:47,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:59:47,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:59:47,461 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:59:47,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:59:47,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:59:47,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:59:47,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:59:47,462 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:59:47,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:59:47,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:59:47,462 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:59:47,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:59:47,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:59:47,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:59:47,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:59:47,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:59:47,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:59:47,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:59:47,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:59:47,466 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_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/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 -> f55631880498cb5413deabbfbce35cfd825fe7b4c570de963a68b466888b738a [2024-12-02 11:59:47,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:59:47,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:59:47,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:59:47,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:59:47,701 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:59:47,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/bitvector-regression/signextension2-2.c [2024-12-02 11:59:50,428 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/data/f6cc6c4a6/847edaec0c3640739c2a14ddcf262150/FLAG02da985ea [2024-12-02 11:59:50,614 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:59:50,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/sv-benchmarks/c/bitvector-regression/signextension2-2.c [2024-12-02 11:59:50,620 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/data/f6cc6c4a6/847edaec0c3640739c2a14ddcf262150/FLAG02da985ea [2024-12-02 11:59:50,634 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/data/f6cc6c4a6/847edaec0c3640739c2a14ddcf262150 [2024-12-02 11:59:50,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:59:50,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:59:50,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:59:50,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:59:50,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:59:50,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba81ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50, skipping insertion in model container [2024-12-02 11:59:50,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:59:50,783 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_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/sv-benchmarks/c/bitvector-regression/signextension2-2.c[589,602] [2024-12-02 11:59:50,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:59:50,797 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:59:50,808 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_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/sv-benchmarks/c/bitvector-regression/signextension2-2.c[589,602] [2024-12-02 11:59:50,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:59:50,822 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:59:50,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50 WrapperNode [2024-12-02 11:59:50,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:59:50,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:59:50,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:59:50,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:59:50,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,850 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-12-02 11:59:50,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:59:50,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:59:50,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:59:50,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:59:50,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,870 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 11:59:50,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,873 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:59:50,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:59:50,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:59:50,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:59:50,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (1/1) ... [2024-12-02 11:59:50,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:59:50,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:59:50,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:59:50,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:59:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:59:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:59:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:59:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:59:50,983 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:59:50,985 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:59:51,074 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 11:59:51,074 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:59:51,084 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:59:51,084 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:59:51,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:51 BoogieIcfgContainer [2024-12-02 11:59:51,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:59:51,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:59:51,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:59:51,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:59:51,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:59:50" (1/3) ... [2024-12-02 11:59:51,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a755530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:59:51, skipping insertion in model container [2024-12-02 11:59:51,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:50" (2/3) ... [2024-12-02 11:59:51,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a755530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:59:51, skipping insertion in model container [2024-12-02 11:59:51,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:51" (3/3) ... [2024-12-02 11:59:51,095 INFO L128 eAbstractionObserver]: Analyzing ICFG signextension2-2.c [2024-12-02 11:59:51,112 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:59:51,114 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG signextension2-2.c that has 1 procedures, 8 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:59:51,155 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:59:51,165 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;@60968153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:59:51,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:59:51,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:59:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-02 11:59:51,173 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:59:51,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-12-02 11:59:51,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:59:51,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:51,178 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2024-12-02 11:59:51,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:59:51,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726192710] [2024-12-02 11:59:51,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:51,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:51,269 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:59:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:59:51,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:59:51,303 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:59:51,304 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:59:51,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:59:51,309 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:59:51,323 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:59:51,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:59:51 BoogieIcfgContainer [2024-12-02 11:59:51,325 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:59:51,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:59:51,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:59:51,326 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:59:51,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:51" (3/4) ... [2024-12-02 11:59:51,328 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 11:59:51,356 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 2. [2024-12-02 11:59:51,390 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:59:51,390 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:59:51,390 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:59:51,391 INFO L158 Benchmark]: Toolchain (without parser) took 753.25ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 52.6MB in the end (delta: 39.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-02 11:59:51,392 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:59:51,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.41ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 81.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:59:51,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.50ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.1MB in the end (delta: 912.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:59:51,393 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:59:51,393 INFO L158 Benchmark]: RCFGBuilder took 206.44ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 70.1MB in the end (delta: 8.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:59:51,393 INFO L158 Benchmark]: TraceAbstraction took 238.08ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 56.6MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:59:51,394 INFO L158 Benchmark]: Witness Printer took 64.50ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 52.8MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:59:51,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.41ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 81.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.50ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.1MB in the end (delta: 912.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 206.44ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 70.1MB in the end (delta: 8.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 238.08ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 56.6MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 64.50ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 52.8MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] unsigned int allOne = -1; [L8] int castToInt = allOne; [L9] long castToLong = allOne; [L10] long castToLong2 = castToInt; [L11] unsigned long castToULong = allOne; VAL [castToInt=-1, castToLong2=-1, castToLong=-1, castToULong=-1] [L13-L14] COND TRUE castToInt == -1 && castToLong == 4294967295UL && castToLong2 == -1 && castToULong == 4294967295UL [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 11:59:51,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e246c1c3-1ae2-4e57-b1d7-3edc549c3bb0/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE