/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/1_3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:42:06,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:42:06,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:42:06,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 17:42:06,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:42:06,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:42:06,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:42:06,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:42:06,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:42:06,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:42:06,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:42:06,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:42:06,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:42:06,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:42:06,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:42:06,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:42:06,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 17:42:06,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:42:06,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:42:06,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:42:06,427 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 17:42:06,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:42:06,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:42:06,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:42:06,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:42:06,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:42:06,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:42:06,458 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:42:06,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:42:06,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:42:06,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:42:06,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:42:06,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:42:06,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:42:06,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:42:06,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:42:06,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:42:06,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:42:06,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:42:06,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:42:06,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:42:06,462 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:42:06,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:42:06,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:42:06,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:42:06,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:42:06,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:42:06,687 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:42:06,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/1_3.i [2022-01-10 17:42:06,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624b02bea/6b3666df0f1a44d2aa34bf1739989c0f/FLAGc021dc016 [2022-01-10 17:42:07,066 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:42:07,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/1_3.i [2022-01-10 17:42:07,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624b02bea/6b3666df0f1a44d2aa34bf1739989c0f/FLAGc021dc016 [2022-01-10 17:42:07,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624b02bea/6b3666df0f1a44d2aa34bf1739989c0f [2022-01-10 17:42:07,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:42:07,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:42:07,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:42:07,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:42:07,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:42:07,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c630c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07, skipping insertion in model container [2022-01-10 17:42:07,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:42:07,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:42:07,601 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/1_3.i[285,298] [2022-01-10 17:42:07,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:07,658 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:42:07,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:42:07,676 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/1_3.i[285,298] [2022-01-10 17:42:07,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:07,691 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:42:07,702 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/1_3.i[285,298] [2022-01-10 17:42:07,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:42:07,720 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:42:07,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07 WrapperNode [2022-01-10 17:42:07,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:42:07,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:42:07,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:42:07,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:42:07,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,750 INFO L137 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 54 [2022-01-10 17:42:07,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:42:07,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:42:07,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:42:07,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:42:07,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:42:07,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:42:07,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:42:07,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:42:07,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (1/1) ... [2022-01-10 17:42:07,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:42:07,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:42:07,802 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 17:42:07,803 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 17:42:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:42:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:42:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 17:42:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 17:42:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:42:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:42:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 17:42:07,884 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:42:07,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:42:07,999 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:42:08,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:42:08,004 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 17:42:08,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:08 BoogieIcfgContainer [2022-01-10 17:42:08,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:42:08,007 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:42:08,007 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:42:08,008 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:42:08,010 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:08" (1/1) ... [2022-01-10 17:42:08,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:42:08 BasicIcfg [2022-01-10 17:42:08,063 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:42:08,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:42:08,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:42:08,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:42:08,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:42:07" (1/4) ... [2022-01-10 17:42:08,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b12e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:42:08, skipping insertion in model container [2022-01-10 17:42:08,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:42:07" (2/4) ... [2022-01-10 17:42:08,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b12e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:42:08, skipping insertion in model container [2022-01-10 17:42:08,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:42:08" (3/4) ... [2022-01-10 17:42:08,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551b12e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:42:08, skipping insertion in model container [2022-01-10 17:42:08,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:42:08" (4/4) ... [2022-01-10 17:42:08,070 INFO L111 eAbstractionObserver]: Analyzing ICFG 1_3.iTransformedIcfg [2022-01-10 17:42:08,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:42:08,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 17:42:08,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:42:08,114 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 17:42:08,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 17:42:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 17:42:08,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 17:42:08,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:42:08,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 17:42:08,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:42:08,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:42:08,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2012661157, now seen corresponding path program 1 times [2022-01-10 17:42:08,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:42:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711021884] [2022-01-10 17:42:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:42:08,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:42:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:42:08,740 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 17:42:08,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:42:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711021884] [2022-01-10 17:42:08,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711021884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:42:08,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:42:08,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:42:08,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99548178] [2022-01-10 17:42:08,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:42:08,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 17:42:08,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:42:08,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 17:42:08,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:42:08,786 INFO L87 Difference]: Start difference. First operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 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 17:42:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:42:08,966 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-01-10 17:42:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 17:42:08,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 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 6 [2022-01-10 17:42:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:42:08,978 INFO L225 Difference]: With dead ends: 29 [2022-01-10 17:42:08,978 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 17:42:08,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 17:42:08,985 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:42:08,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 32 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:42:08,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 17:42:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 17:42:09,006 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 17:42:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-01-10 17:42:09,009 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2022-01-10 17:42:09,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:42:09,009 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-01-10 17:42:09,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 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 17:42:09,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-01-10 17:42:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 17:42:09,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:42:09,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:42:09,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:42:09,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:42:09,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:42:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1444169484, now seen corresponding path program 1 times [2022-01-10 17:42:09,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:42:09,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128400632] [2022-01-10 17:42:09,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:42:09,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:42:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:42:09,082 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 17:42:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:42:09,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 17:42:09,158 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 17:42:09,160 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 17:42:09,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 17:42:09,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:42:09,168 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 17:42:09,171 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 17:42:09,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:42:09 BasicIcfg [2022-01-10 17:42:09,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 17:42:09,222 INFO L158 Benchmark]: Toolchain (without parser) took 1734.51ms. Allocated memory was 173.0MB in the beginning and 238.0MB in the end (delta: 65.0MB). Free memory was 115.3MB in the beginning and 133.0MB in the end (delta: -17.7MB). Peak memory consumption was 47.3MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,222 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 17:42:09,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.90ms. Allocated memory was 173.0MB in the beginning and 238.0MB in the end (delta: 65.0MB). Free memory was 115.0MB in the beginning and 210.0MB in the end (delta: -95.0MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.47ms. Allocated memory is still 238.0MB. Free memory was 210.0MB in the beginning and 208.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,224 INFO L158 Benchmark]: Boogie Preprocessor took 20.39ms. Allocated memory is still 238.0MB. Free memory was 208.5MB in the beginning and 207.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,225 INFO L158 Benchmark]: RCFGBuilder took 233.81ms. Allocated memory is still 238.0MB. Free memory was 207.4MB in the beginning and 195.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,225 INFO L158 Benchmark]: IcfgTransformer took 56.86ms. Allocated memory is still 238.0MB. Free memory was 195.3MB in the beginning and 192.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,226 INFO L158 Benchmark]: TraceAbstraction took 1156.18ms. Allocated memory is still 238.0MB. Free memory was 191.7MB in the beginning and 133.0MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2022-01-10 17:42:09,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.90ms. Allocated memory was 173.0MB in the beginning and 238.0MB in the end (delta: 65.0MB). Free memory was 115.0MB in the beginning and 210.0MB in the end (delta: -95.0MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.47ms. Allocated memory is still 238.0MB. Free memory was 210.0MB in the beginning and 208.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.39ms. Allocated memory is still 238.0MB. Free memory was 208.5MB in the beginning and 207.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 233.81ms. Allocated memory is still 238.0MB. Free memory was 207.4MB in the beginning and 195.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 56.86ms. Allocated memory is still 238.0MB. Free memory was 195.3MB in the beginning and 192.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1156.18ms. Allocated memory is still 238.0MB. Free memory was 191.7MB in the beginning and 133.0MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. 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: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] rr * ptr1 = 0; [L53] CALL, EXPR getPtr() [L39] CALL, EXPR getrr() [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; VAL [\result={-1:0}, r={-1:0}] [L39] RET, EXPR getrr() [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; VAL [\result={-1:0}, r={-1:0}] [L53] RET, EXPR getPtr() [L53] ptr1 = getPtr() [L54] CALL freePtr(ptr1) [L46] EXPR ptr -> state VAL [ptr={-1:0}, ptr={-1:0}, ptr -> state=-1] [L46] (ptr -> state == 1) ? (0) : __blast_assert () VAL [ptr={-1:0}, ptr={-1:0}, ptr -> state=-1] [L47] ptr -> state = 2 VAL [ptr={-1:0}, ptr={-1:0}] [L54] RET freePtr(ptr1) [L56] CALL freePtr(ptr1) [L46] EXPR ptr -> state VAL [ptr={-1:0}, ptr={-1:0}, ptr -> state=-2] [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L46] CALL __blast_assert () [L8] reach_error() - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 17:42:09,246 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...