/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.plc.1.prop2-back-serstep.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 16:08:00,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 16:08:00,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 16:08:00,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 16:08:00,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 16:08:00,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 16:08:00,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 16:08:00,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 16:08:00,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 16:08:00,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 16:08:00,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 16:08:00,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 16:08:00,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 16:08:00,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 16:08:00,648 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 16:08:00,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 16:08:00,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 16:08:00,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 16:08:00,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 16:08:00,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 16:08:00,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 16:08:00,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 16:08:00,655 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 16:08:00,655 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 16:08:00,655 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 16:08:00,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 16:08:00,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 16:08:00,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 16:08:00,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 16:08:00,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 16:08:00,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 16:08:00,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 16:08:00,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 16:08:00,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 16:08:00,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 16:08:00,657 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 16:08:00,657 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 16:08:00,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 16:08:00,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 16:08:00,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 16:08:00,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 16:08:00,659 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 16:08:00,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 16:08:00,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 16:08:00,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 16:08:00,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 16:08:00,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 16:08:00,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.plc.1.prop2-back-serstep.c [2024-11-06 16:08:02,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 16:08:02,700 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 16:08:02,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.plc.1.prop2-back-serstep.c [2024-11-06 16:08:02,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c818679b2/a06829575e2c40228b269ed9e84feba7/FLAG5f44f16af [2024-11-06 16:08:03,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c818679b2/a06829575e2c40228b269ed9e84feba7 [2024-11-06 16:08:03,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 16:08:03,258 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 16:08:03,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 16:08:03,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 16:08:03,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 16:08:03,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:08:03" (1/1) ... [2024-11-06 16:08:03,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126726bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:03, skipping insertion in model container [2024-11-06 16:08:03,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:08:03" (1/1) ... [2024-11-06 16:08:03,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 16:08:03,925 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.plc.1.prop2-back-serstep.c[1171,1184] [2024-11-06 16:08:04,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 16:08:04,985 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 16:08:04,995 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.plc.1.prop2-back-serstep.c[1171,1184] [2024-11-06 16:08:05,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 16:08:05,635 INFO L204 MainTranslator]: Completed translation [2024-11-06 16:08:05,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05 WrapperNode [2024-11-06 16:08:05,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 16:08:05,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 16:08:05,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 16:08:05,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 16:08:05,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:05,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:06,433 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18810 [2024-11-06 16:08:06,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 16:08:06,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 16:08:06,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 16:08:06,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 16:08:06,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:06,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:06,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:06,872 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]. [2024-11-06 16:08:06,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:06,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:07,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:07,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:07,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:07,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:07,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 16:08:07,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 16:08:07,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 16:08:07,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 16:08:07,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:08:05" (1/1) ... [2024-11-06 16:08:07,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 16:08:07,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 16:08:07,356 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) [2024-11-06 16:08:07,364 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 [2024-11-06 16:08:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 16:08:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 16:08:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 16:08:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 16:08:08,936 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 16:08:08,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation