/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/ldv-regression/test28-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:42:53,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:42:53,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:42:53,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 17:42:53,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:42:53,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:42:53,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:42:53,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:42:53,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:42:53,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:42:53,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:42:53,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:42:53,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:42:53,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:42:53,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:42:53,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:42:53,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 17:42:53,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:42:53,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:42:53,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:42:53,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:42:53,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:42:53,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:42:53,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:42:53,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:42:53,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:42:53,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:42:53,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:42:53,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:42:53,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:42:53,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:42:53,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:42:53,240 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:42:53,240 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:42:53,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:42:53,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:42:53,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:42:53,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:42:53,453 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:42:53,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28-1.c [2022-01-10 17:42:53,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23ed1071/1281c971cc774925ab310bbd4324d9bd/FLAGa45c21a16 [2022-01-10 17:42:53,866 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:42:53,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-1.c [2022-01-10 17:42:53,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23ed1071/1281c971cc774925ab310bbd4324d9bd/FLAGa45c21a16 [2022-01-10 17:42:53,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23ed1071/1281c971cc774925ab310bbd4324d9bd [2022-01-10 17:42:53,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:42:53,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:42:53,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:42:53,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:42:53,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:42:53,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:42:53" (1/1) ... [2022-01-10 17:42:53,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fcd881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:53, skipping insertion in model container [2022-01-10 17:42:53,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:42:53" (1/1) ... [2022-01-10 17:42:53,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:42:53,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:42:54,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-1.c[613,626] [2022-01-10 17:42:54,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:54,073 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:42:54,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-1.c[613,626] [2022-01-10 17:42:54,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:54,101 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:42:54,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54 WrapperNode [2022-01-10 17:42:54,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:42:54,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:42:54,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:42:54,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:42:54,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,165 INFO L137 Inliner]: procedures = 15, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-01-10 17:42:54,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:42:54,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:42:54,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:42:54,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:42:54,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:42:54,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:42:54,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:42:54,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:42:54,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:42:54,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:42:54,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:42:54,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:42:54,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:42:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:42:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 17:42:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 17:42:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:42:54,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:42:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 17:42:54,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 17:42:54,328 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:42:54,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:42:54,463 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:42:54,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:42:54,467 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 17:42:54,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:54 BoogieIcfgContainer [2022-01-10 17:42:54,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:42:54,468 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:42:54,469 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:42:54,480 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:42:54,483 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:54" (1/1) ... [2022-01-10 17:42:54,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:42:54 BasicIcfg [2022-01-10 17:42:54,554 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:42:54,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:42:54,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:42:54,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:42:54,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:42:53" (1/4) ... [2022-01-10 17:42:54,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77fd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:42:54, skipping insertion in model container [2022-01-10 17:42:54,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:54" (2/4) ... [2022-01-10 17:42:54,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77fd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:42:54, skipping insertion in model container [2022-01-10 17:42:54,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:54" (3/4) ... [2022-01-10 17:42:54,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77fd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:42:54, skipping insertion in model container [2022-01-10 17:42:54,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:42:54" (4/4) ... [2022-01-10 17:42:54,573 INFO L111 eAbstractionObserver]: Analyzing ICFG test28-1.cTransformedIcfg [2022-01-10 17:42:54,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:42:54,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 17:42:54,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:42:54,606 INFO L339 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:42:54,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 17:42:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2022-01-10 17:42:54,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 17:42:54,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:42:54,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:42:54,617 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:42:54,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:42:54,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1936021114, now seen corresponding path program 1 times [2022-01-10 17:42:54,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:42:54,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473767134] [2022-01-10 17:42:54,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:42:54,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:42:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:42:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:42:54,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:42:54,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473767134] [2022-01-10 17:42:54,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473767134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:42:54,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:42:54,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:42:54,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236403486] [2022-01-10 17:42:54,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:42:54,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:42:54,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:42:54,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:42:54,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:42:54,848 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-01-10 17:42:54,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:42:54,913 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-01-10 17:42:54,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:42:54,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) Word has length 9 [2022-01-10 17:42:54,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:42:54,921 INFO L225 Difference]: With dead ends: 28 [2022-01-10 17:42:54,921 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 17:42:54,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:42:54,931 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:42:54,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 22 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:42:54,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 17:42:54,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2022-01-10 17:42:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-01-10 17:42:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-01-10 17:42:54,953 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2022-01-10 17:42:54,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:42:54,953 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-01-10 17:42:54,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-01-10 17:42:54,954 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-01-10 17:42:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 17:42:54,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:42:54,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:42:54,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:42:54,954 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:42:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:42:54,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1935097593, now seen corresponding path program 1 times [2022-01-10 17:42:54,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:42:54,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77689131] [2022-01-10 17:42:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:42:54,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:42:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:42:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:42:55,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:42:55,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77689131] [2022-01-10 17:42:55,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77689131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:42:55,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:42:55,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:42:55,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282532596] [2022-01-10 17:42:55,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:42:55,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:42:55,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:42:55,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:42:55,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:42:55,044 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-01-10 17:42:55,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:42:55,067 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-01-10 17:42:55,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:42:55,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Word has length 9 [2022-01-10 17:42:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:42:55,068 INFO L225 Difference]: With dead ends: 19 [2022-01-10 17:42:55,068 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 17:42:55,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:42:55,069 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:42:55,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:42:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 17:42:55,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 17:42:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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) [2022-01-10 17:42:55,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-01-10 17:42:55,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2022-01-10 17:42:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:42:55,072 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-01-10 17:42:55,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-01-10 17:42:55,072 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-01-10 17:42:55,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 17:42:55,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:42:55,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:42:55,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:42:55,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:42:55,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:42:55,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1048517433, now seen corresponding path program 1 times [2022-01-10 17:42:55,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:42:55,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753719945] [2022-01-10 17:42:55,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:42:55,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:42:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:42:55,095 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 17:42:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:42:55,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 17:42:55,145 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 17:42:55,146 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 17:42:55,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:42:55,161 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-10 17:42:55,163 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 17:42:55,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:42:55 BasicIcfg [2022-01-10 17:42:55,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 17:42:55,190 INFO L158 Benchmark]: Toolchain (without parser) took 1305.30ms. Allocated memory was 198.2MB in the beginning and 328.2MB in the end (delta: 130.0MB). Free memory was 143.8MB in the beginning and 239.0MB in the end (delta: -95.2MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,190 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory was 160.0MB in the beginning and 160.0MB in the end (delta: 72.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 17:42:55,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.30ms. Allocated memory was 198.2MB in the beginning and 328.2MB in the end (delta: 130.0MB). Free memory was 143.6MB in the beginning and 300.9MB in the end (delta: -157.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.22ms. Allocated memory is still 328.2MB. Free memory was 300.4MB in the beginning and 299.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,192 INFO L158 Benchmark]: Boogie Preprocessor took 37.21ms. Allocated memory is still 328.2MB. Free memory was 298.8MB in the beginning and 297.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,193 INFO L158 Benchmark]: RCFGBuilder took 264.32ms. Allocated memory is still 328.2MB. Free memory was 297.7MB in the beginning and 286.2MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,193 INFO L158 Benchmark]: IcfgTransformer took 85.99ms. Allocated memory is still 328.2MB. Free memory was 286.2MB in the beginning and 283.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,193 INFO L158 Benchmark]: TraceAbstraction took 620.91ms. Allocated memory is still 328.2MB. Free memory was 282.5MB in the beginning and 239.0MB in the end (delta: 43.5MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-01-10 17:42:55,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory was 160.0MB in the beginning and 160.0MB in the end (delta: 72.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.30ms. Allocated memory was 198.2MB in the beginning and 328.2MB in the end (delta: 130.0MB). Free memory was 143.6MB in the beginning and 300.9MB in the end (delta: -157.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.22ms. Allocated memory is still 328.2MB. Free memory was 300.4MB in the beginning and 299.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.21ms. Allocated memory is still 328.2MB. Free memory was 298.8MB in the beginning and 297.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 264.32ms. Allocated memory is still 328.2MB. Free memory was 297.7MB in the beginning and 286.2MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 85.99ms. Allocated memory is still 328.2MB. Free memory was 286.2MB in the beginning and 283.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 620.91ms. Allocated memory is still 328.2MB. Free memory was 282.5MB in the beginning and 239.0MB in the end (delta: 43.5MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * 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: 29]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] struct dummy d1, d2; [L15] int n = __VERIFIER_nondet_int(); [L16] EXPR n ? &d1 : &d2 VAL [d1={-2:0}, d2={-3:0}, n=0, n ? &d1 : &d2={-3:0}] [L16] struct dummy *pd = n ? &d1 : &d2; [L17] COND TRUE pd == &d2 [L18] pd->a = 0 [L19] pd->b = __VERIFIER_nondet_int() [L23] pd == &d2 && d2.b != 0 [L23] EXPR d2.b [L23] pd == &d2 && d2.b != 0 VAL [d1={-2:0}, d2={-3:0}, d2.b=-1, n=0, pd={-3:0}, pd == &d2 && d2.b != 0=1] [L23] COND TRUE pd == &d2 && d2.b != 0 [L29] reach_error() VAL [d1={-2:0}, d2={-3:0}, n=0, pd={-3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 17 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-01-10 17:42:55,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...