./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/bitvector-regression/signextension2-2.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/signextension2-2.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/bitvector-regression/signextension2-2.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/signextension2-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:12:41,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:12:41,201 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:12:41,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:12:41,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:12:41,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:12:41,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:12:41,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:12:41,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:12:41,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:12:41,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:12:41,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:12:41,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:12:41,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:12:41,246 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:12:41,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:12:41,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:12:41,247 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:12:41,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:12:41,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:12:41,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:12:41,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:12:41,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:12:41,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:12:41,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:12:41,252 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:12:41,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:12:41,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:12:41,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:12:41,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:12:41,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:12:41,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:12:41,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:12:41,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:12:41,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:12:41,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:12:41,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:12:41,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:12:41,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:12:41,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:12:41,256 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:12:41,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:12:41,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:12:41,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:12:41,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:12:41,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:12:41,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:12:41,579 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:12:41,580 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:12:41,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/signextension2-2.yml/witness.yml [2024-08-14 14:12:41,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:12:41,685 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:12:41,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension2-2.c [2024-08-14 14:12:43,179 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:12:43,377 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:12:43,378 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-2.c [2024-08-14 14:12:43,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e55a10d1/3f2bac4f3ada4730b9721df42f79f48c/FLAG1e1e12dfd [2024-08-14 14:12:43,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e55a10d1/3f2bac4f3ada4730b9721df42f79f48c [2024-08-14 14:12:43,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:12:43,403 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:12:43,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:43,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:12:43,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:12:43,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:41" (1/2) ... [2024-08-14 14:12:43,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fa05a4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:43, skipping insertion in model container [2024-08-14 14:12:43,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:41" (1/2) ... [2024-08-14 14:12:43,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b713850 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:12:43, skipping insertion in model container [2024-08-14 14:12:43,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:43" (2/2) ... [2024-08-14 14:12:43,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fa05a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43, skipping insertion in model container [2024-08-14 14:12:43,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:12:43" (2/2) ... [2024-08-14 14:12:43,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:12:43,634 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-2.c[589,602] [2024-08-14 14:12:43,641 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:43,657 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:12:43,674 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-2.c[589,602] [2024-08-14 14:12:43,675 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:12:43,700 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:12:43,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43 WrapperNode [2024-08-14 14:12:43,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:12:43,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:12:43,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:12:43,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:12:43,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,741 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]. [2024-08-14 14:12:43,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:12:43,754 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:12:43,754 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:12:43,754 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:12:43,755 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (1/1) ... [2024-08-14 14:12:43,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:12:43,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:12:43,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:12:43,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:12:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:12:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:12:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:12:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:12:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:12:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:12:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:12:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:12:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:12:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:12:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:12:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:12:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:12:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:12:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:12:43,926 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:12:43,928 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:12:44,052 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-08-14 14:12:44,052 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:12:44,064 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:12:44,065 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:12:44,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:44 BoogieIcfgContainer [2024-08-14 14:12:44,067 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:12:44,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:12:44,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:12:44,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:12:44,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:12:41" (1/4) ... [2024-08-14 14:12:44,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaa8b0f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:12:44, skipping insertion in model container [2024-08-14 14:12:44,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:12:43" (2/4) ... [2024-08-14 14:12:44,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaa8b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:44, skipping insertion in model container [2024-08-14 14:12:44,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:12:43" (3/4) ... [2024-08-14 14:12:44,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaa8b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:12:44, skipping insertion in model container [2024-08-14 14:12:44,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:12:44" (4/4) ... [2024-08-14 14:12:44,080 INFO L119 eAbstractionObserver]: Analyzing ICFG signextension2-2.c [2024-08-14 14:12:44,080 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:12:44,101 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:12:44,102 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:12:44,131 INFO L92 WitnessUtils]: Constructing product of automaton with 15 states and violation witness of the following lengths: [2] [2024-08-14 14:12:44,135 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 15 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-08-14 14:12:44,166 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 19 states to 9 states. [2024-08-14 14:12:44,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:12:44,198 INFO L357 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, mHoare=false, 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;@6c6edf2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:12:44,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:12:44,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2024-08-14 14:12:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-08-14 14:12:44,205 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:12:44,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:12:44,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:12:44,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:12:44,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1377292700, now seen corresponding path program 1 times [2024-08-14 14:12:44,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:12:44,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667113936] [2024-08-14 14:12:44,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:12:44,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:12:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:44,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:12:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:12:44,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:12:44,383 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:12:44,385 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:12:44,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:12:44,396 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:12:44,401 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:12:44,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:12:44 BoogieIcfgContainer [2024-08-14 14:12:44,413 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:12:44,414 INFO L158 Benchmark]: Toolchain (without parser) took 1010.83ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 60.8MB in the beginning and 138.1MB in the end (delta: -77.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:44,414 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 132.1MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:44,414 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 132.1MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:12:44,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.88ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 60.5MB in the beginning and 170.2MB in the end (delta: -109.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,415 INFO L158 Benchmark]: Boogie Preprocessor took 50.52ms. Allocated memory is still 199.2MB. Free memory was 170.2MB in the beginning and 168.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,416 INFO L158 Benchmark]: IcfgBuilder took 313.13ms. Allocated memory is still 199.2MB. Free memory was 168.1MB in the beginning and 155.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,416 INFO L158 Benchmark]: TraceAbstraction took 342.59ms. Allocated memory is still 199.2MB. Free memory was 155.5MB in the beginning and 138.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-08-14 14:12:44,418 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.22ms. Allocated memory is still 132.1MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 132.1MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.88ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 60.5MB in the beginning and 170.2MB in the end (delta: -109.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.52ms. Allocated memory is still 199.2MB. Free memory was 170.2MB in the beginning and 168.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 313.13ms. Allocated memory is still 199.2MB. Free memory was 168.1MB in the beginning and 155.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 342.59ms. Allocated memory is still 199.2MB. Free memory was 155.5MB in the beginning and 138.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. 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 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=9occurred 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, 8 NumberOfCodeBlocks, 8 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 RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:12:44,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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