/usr/bin/java -ea -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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 15:59:54,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 15:59:54,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 15:59:54,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 15:59:54,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 15:59:54,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 15:59:54,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 15:59:54,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 15:59:54,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 15:59:54,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 15:59:54,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 15:59:54,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 15:59:54,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 15:59:54,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 15:59:54,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 15:59:54,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 15:59:54,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 15:59:54,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 15:59:54,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 15:59:54,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 15:59:54,100 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 15:59:54,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 15:59:54,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 15:59:54,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 15:59:54,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 15:59:54,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 15:59:54,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 15:59:54,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 15:59:54,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 15:59:54,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 15:59:54,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 15:59:54,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 15:59:54,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 15:59:54,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 15:59:54,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 15:59:54,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 15:59:54,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 15:59:54,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 15:59:54,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 15:59:54,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 15:59:54,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 15:59:54,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 15:59:54,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 15:59:54,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 15:59:54,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 15:59:54,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 15:59:54,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 15:59:54,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 15:59:54,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 15:59:54,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 15:59:54,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 15:59:54,131 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 15:59:54,131 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 15:59:54,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 15:59:54,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 15:59:54,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 15:59:54,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 15:59:54,368 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 15:59:54,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2022-04-27 15:59:54,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e395e6c8e/e0275c5de89a422f8ac6f85ae155b7df/FLAG0886e878d [2022-04-27 15:59:54,783 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 15:59:54,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2022-04-27 15:59:54,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e395e6c8e/e0275c5de89a422f8ac6f85ae155b7df/FLAG0886e878d [2022-04-27 15:59:55,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e395e6c8e/e0275c5de89a422f8ac6f85ae155b7df [2022-04-27 15:59:55,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 15:59:55,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 15:59:55,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 15:59:55,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 15:59:55,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 15:59:55,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5c5033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55, skipping insertion in model container [2022-04-27 15:59:55,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 15:59:55,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 15:59:55,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c[333,346] [2022-04-27 15:59:55,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 15:59:55,370 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 15:59:55,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c[333,346] [2022-04-27 15:59:55,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 15:59:55,397 INFO L208 MainTranslator]: Completed translation [2022-04-27 15:59:55,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55 WrapperNode [2022-04-27 15:59:55,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 15:59:55,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 15:59:55,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 15:59:55,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 15:59:55,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 15:59:55,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 15:59:55,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 15:59:55,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 15:59:55,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 15:59:55,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 15:59:55,446 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) [2022-04-27 15:59:55,451 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 [2022-04-27 15:59:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 15:59:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 15:59:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 15:59:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 15:59:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2022-04-27 15:59:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 15:59:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 15:59:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 15:59:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 15:59:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 15:59:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 15:59:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2022-04-27 15:59:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 15:59:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 15:59:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 15:59:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 15:59:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 15:59:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 15:59:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 15:59:55,512 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 15:59:55,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 15:59:55,566 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 15:59:55,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 15:59:55,571 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-27 15:59:55,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 03:59:55 BoogieIcfgContainer [2022-04-27 15:59:55,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 15:59:55,573 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 15:59:55,573 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 15:59:55,574 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 15:59:55,576 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 03:59:55" (1/1) ... [2022-04-27 15:59:55,577 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 15:59:55,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 03:59:55 BasicIcfg [2022-04-27 15:59:55,586 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 15:59:55,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 15:59:55,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 15:59:55,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 15:59:55,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 03:59:55" (1/4) ... [2022-04-27 15:59:55,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c50393c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 03:59:55, skipping insertion in model container [2022-04-27 15:59:55,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:59:55" (2/4) ... [2022-04-27 15:59:55,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c50393c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 03:59:55, skipping insertion in model container [2022-04-27 15:59:55,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 03:59:55" (3/4) ... [2022-04-27 15:59:55,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c50393c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 03:59:55, skipping insertion in model container [2022-04-27 15:59:55,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 03:59:55" (4/4) ... [2022-04-27 15:59:55,592 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.cJordan [2022-04-27 15:59:55,601 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 15:59:55,602 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 15:59:55,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 15:59:55,635 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ed95f68, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5794cc3e [2022-04-27 15:59:55,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 15:59:55,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-27 15:59:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-27 15:59:55,659 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 15:59:55,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 15:59:55,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 15:59:55,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 15:59:55,663 INFO L85 PathProgramCache]: Analyzing trace with hash -459487812, now seen corresponding path program 1 times [2022-04-27 15:59:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 15:59:55,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107916994] [2022-04-27 15:59:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 15:59:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 15:59:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:59:55,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 15:59:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:59:55,796 INFO L290 TraceCheckUtils]: 0: Hoare triple {31#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= (select |v_#length_1| 2) 24) (= v_~x~0_5 0) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, ~x~0=v_~x~0_5, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, ~x~0, #NULL.base] {26#true} is VALID [2022-04-27 15:59:55,796 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#true} [63] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#true} is VALID [2022-04-27 15:59:55,796 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#true} is VALID [2022-04-27 15:59:55,798 INFO L272 TraceCheckUtils]: 0: Hoare triple {26#true} [56] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 15:59:55,798 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= (select |v_#length_1| 2) 24) (= v_~x~0_5 0) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, ~x~0=v_~x~0_5, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, ~x~0, #NULL.base] {26#true} is VALID [2022-04-27 15:59:55,799 INFO L290 TraceCheckUtils]: 2: Hoare triple {26#true} [63] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#true} is VALID [2022-04-27 15:59:55,799 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#true} is VALID [2022-04-27 15:59:55,799 INFO L272 TraceCheckUtils]: 4: Hoare triple {26#true} [57] L-1-->L29: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#true} is VALID [2022-04-27 15:59:55,801 INFO L290 TraceCheckUtils]: 5: Hoare triple {26#true} [60] L29-->L26-1: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {27#false} is VALID [2022-04-27 15:59:55,801 INFO L272 TraceCheckUtils]: 6: Hoare triple {27#false} [64] L26-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (not (= v_~x~0_12 0)) 1 0)) InVars {~x~0=v_~x~0_12} OutVars{~x~0=v_~x~0_12, __VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond] {27#false} is VALID [2022-04-27 15:59:55,802 INFO L290 TraceCheckUtils]: 7: Hoare triple {27#false} [67] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {27#false} is VALID [2022-04-27 15:59:55,802 INFO L290 TraceCheckUtils]: 8: Hoare triple {27#false} [73] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {27#false} is VALID [2022-04-27 15:59:55,802 INFO L290 TraceCheckUtils]: 9: Hoare triple {27#false} [76] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {27#false} is VALID [2022-04-27 15:59:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 15:59:55,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 15:59:55,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107916994] [2022-04-27 15:59:55,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107916994] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 15:59:55,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 15:59:55,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 15:59:55,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842274092] [2022-04-27 15:59:55,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 15:59:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-04-27 15:59:55,814 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 15:59:55,816 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:59:55,841 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 15:59:55,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 15:59:55,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 15:59:55,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 15:59:55,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 15:59:55,872 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.5) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:59:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:59:55,948 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-04-27 15:59:55,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 15:59:55,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-04-27 15:59:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 15:59:55,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:59:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2022-04-27 15:59:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:59:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2022-04-27 15:59:55,955 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2022-04-27 15:59:55,987 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 15:59:55,992 INFO L225 Difference]: With dead ends: 19 [2022-04-27 15:59:55,992 INFO L226 Difference]: Without dead ends: 19 [2022-04-27 15:59:55,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 15:59:55,995 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 15:59:55,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 15:59:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-04-27 15:59:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-04-27 15:59:56,019 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 15:59:56,019 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 15:59:56,020 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 15:59:56,020 INFO L87 Difference]: Start difference. First operand 19 states. Second operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 15:59:56,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:59:56,022 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-04-27 15:59:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-04-27 15:59:56,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:59:56,023 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 15:59:56,023 INFO L74 IsIncluded]: Start isIncluded. First operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 19 states. [2022-04-27 15:59:56,023 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 19 states. [2022-04-27 15:59:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:59:56,025 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-04-27 15:59:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-04-27 15:59:56,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:59:56,026 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 15:59:56,026 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 15:59:56,026 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 15:59:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-27 15:59:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-04-27 15:59:56,028 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2022-04-27 15:59:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 15:59:56,028 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-04-27 15:59:56,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:59:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-04-27 15:59:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-27 15:59:56,029 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 15:59:56,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 15:59:56,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 15:59:56,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 15:59:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 15:59:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2132896698, now seen corresponding path program 1 times [2022-04-27 15:59:56,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 15:59:56,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871624139] [2022-04-27 15:59:56,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 15:59:56,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 15:59:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:59:56,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 15:59:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:59:56,114 INFO L290 TraceCheckUtils]: 0: Hoare triple {119#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= (select |v_#length_1| 2) 24) (= v_~x~0_5 0) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, ~x~0=v_~x~0_5, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, ~x~0, #NULL.base] {108#true} is VALID [2022-04-27 15:59:56,114 INFO L290 TraceCheckUtils]: 1: Hoare triple {108#true} [63] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {108#true} is VALID [2022-04-27 15:59:56,115 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {108#true} {108#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {108#true} is VALID [2022-04-27 15:59:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-27 15:59:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:59:56,125 INFO L290 TraceCheckUtils]: 0: Hoare triple {120#(= ~x~0 |old(~x~0)|)} [71] evalENTRY-->L16-1: Formula: (= v_~x~0_6 0) InVars {} OutVars{~x~0=v_~x~0_6} AuxVars[] AssignedVars[~x~0] {116#(= ~x~0 0)} is VALID [2022-04-27 15:59:56,125 INFO L290 TraceCheckUtils]: 1: Hoare triple {116#(= ~x~0 0)} [75] L16-1-->evalEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {116#(= ~x~0 0)} is VALID [2022-04-27 15:59:56,126 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {116#(= ~x~0 0)} {108#true} [81] evalEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {116#(= ~x~0 0)} is VALID [2022-04-27 15:59:56,126 INFO L272 TraceCheckUtils]: 0: Hoare triple {108#true} [56] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 15:59:56,127 INFO L290 TraceCheckUtils]: 1: Hoare triple {119#(and (= ~x~0 |old(~x~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [58] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= (select |v_#length_1| 2) 24) (= v_~x~0_5 0) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, ~x~0=v_~x~0_5, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, ~x~0, #NULL.base] {108#true} is VALID [2022-04-27 15:59:56,127 INFO L290 TraceCheckUtils]: 2: Hoare triple {108#true} [63] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {108#true} is VALID [2022-04-27 15:59:56,127 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {108#true} {108#true} [79] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {108#true} is VALID [2022-04-27 15:59:56,127 INFO L272 TraceCheckUtils]: 4: Hoare triple {108#true} [57] L-1-->L29: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {108#true} is VALID [2022-04-27 15:59:56,127 INFO L290 TraceCheckUtils]: 5: Hoare triple {108#true} [62] L29-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {108#true} is VALID [2022-04-27 15:59:56,128 INFO L272 TraceCheckUtils]: 6: Hoare triple {108#true} [65] L28-->evalENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {120#(= ~x~0 |old(~x~0)|)} is VALID [2022-04-27 15:59:56,128 INFO L290 TraceCheckUtils]: 7: Hoare triple {120#(= ~x~0 |old(~x~0)|)} [71] evalENTRY-->L16-1: Formula: (= v_~x~0_6 0) InVars {} OutVars{~x~0=v_~x~0_6} AuxVars[] AssignedVars[~x~0] {116#(= ~x~0 0)} is VALID [2022-04-27 15:59:56,129 INFO L290 TraceCheckUtils]: 8: Hoare triple {116#(= ~x~0 0)} [75] L16-1-->evalEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {116#(= ~x~0 0)} is VALID [2022-04-27 15:59:56,129 INFO L284 TraceCheckUtils]: 9: Hoare quadruple {116#(= ~x~0 0)} {108#true} [81] evalEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {116#(= ~x~0 0)} is VALID [2022-04-27 15:59:56,130 INFO L272 TraceCheckUtils]: 10: Hoare triple {116#(= ~x~0 0)} [68] L28-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_~x~0_11 0) 1 0)) InVars {~x~0=v_~x~0_11} OutVars{~x~0=v_~x~0_11, __VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond] {117#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 15:59:56,130 INFO L290 TraceCheckUtils]: 11: Hoare triple {117#(not (= |__VERIFIER_assert_#in~cond| 0))} [67] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {118#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 15:59:56,132 INFO L290 TraceCheckUtils]: 12: Hoare triple {118#(not (= __VERIFIER_assert_~cond 0))} [73] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {109#false} is VALID [2022-04-27 15:59:56,132 INFO L290 TraceCheckUtils]: 13: Hoare triple {109#false} [76] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {109#false} is VALID [2022-04-27 15:59:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 15:59:56,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 15:59:56,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871624139] [2022-04-27 15:59:56,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871624139] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 15:59:56,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 15:59:56,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-27 15:59:56,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401310445] [2022-04-27 15:59:56,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 15:59:56,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-04-27 15:59:56,135 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 15:59:56,135 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 15:59:56,148 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 15:59:56,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-27 15:59:56,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 15:59:56,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-27 15:59:56,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-04-27 15:59:56,149 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 15:59:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:59:56,286 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-27 15:59:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-27 15:59:56,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-04-27 15:59:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 15:59:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 15:59:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2022-04-27 15:59:56,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 15:59:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2022-04-27 15:59:56,289 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 16 transitions. [2022-04-27 15:59:56,303 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 15:59:56,304 INFO L225 Difference]: With dead ends: 15 [2022-04-27 15:59:56,304 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 15:59:56,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-04-27 15:59:56,305 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 15:59:56,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 23 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 15:59:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 15:59:56,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 15:59:56,316 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 15:59:56,316 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-04-27 15:59:56,316 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-04-27 15:59:56,316 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-04-27 15:59:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:59:56,317 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 15:59:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 15:59:56,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:59:56,317 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 15:59:56,317 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 0 states. [2022-04-27 15:59:56,317 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 0 states. [2022-04-27 15:59:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:59:56,317 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 15:59:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 15:59:56,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:59:56,318 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 15:59:56,318 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 15:59:56,318 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 15:59:56,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-04-27 15:59:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 15:59:56,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-04-27 15:59:56,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 15:59:56,319 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 15:59:56,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-27 15:59:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 15:59:56,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:59:56,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 15:59:56,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-27 15:59:56,327 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 15:59:56,329 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 15:59:56,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 03:59:56 BasicIcfg [2022-04-27 15:59:56,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 15:59:56,336 INFO L158 Benchmark]: Toolchain (without parser) took 1109.87ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 148.9MB in the beginning and 153.9MB in the end (delta: -5.0MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2022-04-27 15:59:56,337 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory was 165.6MB in the beginning and 165.5MB in the end (delta: 68.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 15:59:56,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.90ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 148.7MB in the beginning and 218.5MB in the end (delta: -69.8MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-04-27 15:59:56,339 INFO L158 Benchmark]: Boogie Preprocessor took 20.80ms. Allocated memory is still 241.2MB. Free memory was 218.5MB in the beginning and 217.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 15:59:56,343 INFO L158 Benchmark]: RCFGBuilder took 152.89ms. Allocated memory is still 241.2MB. Free memory was 217.1MB in the beginning and 207.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 15:59:56,343 INFO L158 Benchmark]: IcfgTransformer took 13.49ms. Allocated memory is still 241.2MB. Free memory was 207.0MB in the beginning and 205.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 15:59:56,343 INFO L158 Benchmark]: TraceAbstraction took 747.68ms. Allocated memory is still 241.2MB. Free memory was 205.3MB in the beginning and 153.9MB in the end (delta: 51.4MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2022-04-27 15:59:56,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory was 165.6MB in the beginning and 165.5MB in the end (delta: 68.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 170.90ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 148.7MB in the beginning and 218.5MB in the end (delta: -69.8MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.80ms. Allocated memory is still 241.2MB. Free memory was 218.5MB in the beginning and 217.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 152.89ms. Allocated memory is still 241.2MB. Free memory was 217.1MB in the beginning and 207.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 13.49ms. Allocated memory is still 241.2MB. Free memory was 207.0MB in the beginning and 205.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 747.68ms. Allocated memory is still 241.2MB. Free memory was 205.3MB in the beginning and 153.9MB in the end (delta: 51.4MB). Peak memory consumption was 51.4MB. 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 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 29 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-27 15:59:56,375 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...