./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.7.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.7.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash c0b0d922404f93bf90f148b0b34d6b04484a0b34e30595630a47c208bc437046 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 09:31:47,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 09:31:47,284 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 09:31:47,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 09:31:47,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 09:31:47,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 09:31:47,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 09:31:47,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 09:31:47,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 09:31:47,303 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 09:31:47,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 09:31:47,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 09:31:47,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 09:31:47,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 09:31:47,303 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 09:31:47,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 09:31:47,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 09:31:47,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 09:31:47,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:31:47,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 09:31:47,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 09:31:47,305 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b0d922404f93bf90f148b0b34d6b04484a0b34e30595630a47c208bc437046 [2025-03-08 09:31:47,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 09:31:47,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 09:31:47,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 09:31:47,527 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 09:31:47,528 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 09:31:47,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.7.prop1-back-serstep.c [2025-03-08 09:31:48,656 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeed4cc9d/e2f130946cef4bedabc6c034732fcaa2/FLAGab30b7de0 [2025-03-08 09:31:49,091 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 09:31:49,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.7.prop1-back-serstep.c [2025-03-08 09:31:49,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeed4cc9d/e2f130946cef4bedabc6c034732fcaa2/FLAGab30b7de0 [2025-03-08 09:31:49,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeed4cc9d/e2f130946cef4bedabc6c034732fcaa2 [2025-03-08 09:31:49,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 09:31:49,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 09:31:49,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 09:31:49,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 09:31:49,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 09:31:49,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:31:49" (1/1) ... [2025-03-08 09:31:49,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f28439c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:49, skipping insertion in model container [2025-03-08 09:31:49,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:31:49" (1/1) ... [2025-03-08 09:31:49,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 09:31:49,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.7.prop1-back-serstep.c[1175,1188] [2025-03-08 09:31:50,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:31:50,374 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 09:31:50,380 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.7.prop1-back-serstep.c[1175,1188] [2025-03-08 09:31:51,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:31:51,126 INFO L204 MainTranslator]: Completed translation [2025-03-08 09:31:51,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51 WrapperNode [2025-03-08 09:31:51,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 09:31:51,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 09:31:51,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 09:31:51,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 09:31:51,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:51,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:54,376 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47865 [2025-03-08 09:31:54,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 09:31:54,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 09:31:54,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 09:31:54,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 09:31:54,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:54,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:55,286 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:55,723 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]. [2025-03-08 09:31:55,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:55,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:56,694 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:56,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:57,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:57,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:57,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 09:31:57,951 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 09:31:57,952 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 09:31:57,952 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 09:31:57,953 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:31:51" (1/1) ... [2025-03-08 09:31:57,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:31:57,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:31:57,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 09:31:57,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 09:31:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 09:31:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 09:31:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 09:31:58,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 09:31:59,866 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 09:31:59,867 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation