/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:30:22,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:30:22,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:30:22,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:30:22,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:30:22,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:30:22,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:30:22,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:30:22,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:30:22,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:30:22,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:30:22,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:30:22,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:30:22,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:30:22,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:30:22,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:30:22,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:30:22,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:30:22,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:30:22,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:30:22,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:30:22,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:30:22,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:30:22,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:30:22,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 20:30:22,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:30:22,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:30:22,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:30:22,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-23 20:30:22,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:30:22,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:30:22,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-23 20:30:22,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-23 20:30:22,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-23 20:30:22,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-23 20:30:22,474 INFO L138 SettingsManager]: * Use SBE=true [2022-02-23 20:30:22,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:30:22,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:30:22,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:30:22,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:30:22,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:30:22,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:30:22,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:30:22,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:30:22,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:30:22,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:30:22,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-23 20:30:22,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-23 20:30:22,477 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:30:22,477 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:30:22,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:30:22,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:30:22,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:30:22,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:30:22,673 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:30:22,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c [2022-02-23 20:30:22,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff0b1151/f55eab97ce764867be55883ea6f8eecc/FLAGe5f8b5386 [2022-02-23 20:30:23,062 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:30:23,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c [2022-02-23 20:30:23,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff0b1151/f55eab97ce764867be55883ea6f8eecc/FLAGe5f8b5386 [2022-02-23 20:30:23,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff0b1151/f55eab97ce764867be55883ea6f8eecc [2022-02-23 20:30:23,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:30:23,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:30:23,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:30:23,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:30:23,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:30:23,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3b4bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23, skipping insertion in model container [2022-02-23 20:30:23,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:30:23,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:30:23,263 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/terminator_02-2.c[414,427] [2022-02-23 20:30:23,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:30:23,291 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:30:23,300 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/terminator_02-2.c[414,427] [2022-02-23 20:30:23,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:30:23,317 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:30:23,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23 WrapperNode [2022-02-23 20:30:23,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:30:23,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:30:23,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:30:23,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:30:23,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:30:23,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:30:23,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:30:23,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:30:23,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:30:23,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:30:23,373 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) [2022-02-23 20:30:23,399 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 [2022-02-23 20:30:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:30:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:30:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:30:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-23 20:30:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-23 20:30:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:30:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:30:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:30:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:30:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:30:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:30:23,450 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:30:23,452 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:30:23,560 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:30:23,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:30:23,564 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:30:23,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:30:23 BoogieIcfgContainer [2022-02-23 20:30:23,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:30:23,565 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:30:23,565 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:30:23,575 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:30:23,578 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:30:23" (1/1) ... [2022-02-23 20:30:23,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:30:23 BasicIcfg [2022-02-23 20:30:23,588 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:30:23,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:30:23,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:30:23,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:30:23,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:30:23" (1/4) ... [2022-02-23 20:30:23,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59dfeafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:30:23, skipping insertion in model container [2022-02-23 20:30:23,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:30:23" (2/4) ... [2022-02-23 20:30:23,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59dfeafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:30:23, skipping insertion in model container [2022-02-23 20:30:23,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:30:23" (3/4) ... [2022-02-23 20:30:23,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59dfeafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:30:23, skipping insertion in model container [2022-02-23 20:30:23,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:30:23" (4/4) ... [2022-02-23 20:30:23,593 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-2.cqvasr [2022-02-23 20:30:23,596 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:30:23,597 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:30:23,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:30:23,628 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=FINITE_AUTOMATA, 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 [2022-02-23 20:30:23,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:30:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 20:30:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-23 20:30:23,640 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:30:23,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:30:23,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:30:23,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:30:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1239337081, now seen corresponding path program 1 times [2022-02-23 20:30:23,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:30:23,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185801708] [2022-02-23 20:30:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:30:23,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:30:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:30:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:30:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:30:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:30:23,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:30:23,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185801708] [2022-02-23 20:30:23,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185801708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:30:23,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:30:23,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-23 20:30:23,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608312029] [2022-02-23 20:30:23,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:30:23,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 20:30:23,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:30:23,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 20:30:23,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-23 20:30:23,844 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-23 20:30:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:30:23,889 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-02-23 20:30:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 20:30:23,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-02-23 20:30:23,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:30:23,895 INFO L225 Difference]: With dead ends: 36 [2022-02-23 20:30:23,895 INFO L226 Difference]: Without dead ends: 17 [2022-02-23 20:30:23,898 INFO L932 BasicCegarLoop]: 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 [2022-02-23 20:30:23,902 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:30:23,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:30:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-02-23 20:30:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-02-23 20:30:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 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) [2022-02-23 20:30:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-02-23 20:30:23,930 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2022-02-23 20:30:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:30:23,930 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-02-23 20:30:23,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-23 20:30:23,931 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-02-23 20:30:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-23 20:30:23,931 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:30:23,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:30:23,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:30:23,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:30:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:30:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1240260602, now seen corresponding path program 1 times [2022-02-23 20:30:23,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:30:23,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609107602] [2022-02-23 20:30:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:30:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:30:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:30:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:30:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:30:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:30:24,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:30:24,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609107602] [2022-02-23 20:30:24,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609107602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:30:24,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:30:24,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:30:24,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613715572] [2022-02-23 20:30:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:30:24,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:30:24,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:30:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:30:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:30:24,093 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-02-23 20:30:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:30:24,154 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-02-23 20:30:24,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 20:30:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 15 [2022-02-23 20:30:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:30:24,155 INFO L225 Difference]: With dead ends: 17 [2022-02-23 20:30:24,155 INFO L226 Difference]: Without dead ends: 0 [2022-02-23 20:30:24,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-23 20:30:24,160 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:30:24,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:30:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-23 20:30:24,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-23 20:30:24,166 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) [2022-02-23 20:30:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-23 20:30:24,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-02-23 20:30:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:30:24,170 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-23 20:30:24,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-02-23 20:30:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-23 20:30:24,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-23 20:30:24,172 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 20:30:24,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:30:24,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-23 20:30:24,188 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-02-23 20:30:24,188 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-02-23 20:30:24,189 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-02-23 20:30:24,189 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-02-23 20:30:24,189 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-02-23 20:30:24,189 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-23 20:30:24,189 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-23 20:30:24,189 INFO L861 garLoopResultBuilder]: At program point mainENTRY(lines 18 40) the Hoare annotation is: true [2022-02-23 20:30:24,189 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-02-23 20:30:24,189 INFO L858 garLoopResultBuilder]: For program point mainFINAL(lines 18 40) no Hoare annotation was computed. [2022-02-23 20:30:24,190 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-02-23 20:30:24,190 INFO L858 garLoopResultBuilder]: For program point mainEXIT(lines 18 40) no Hoare annotation was computed. [2022-02-23 20:30:24,190 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-02-23 20:30:24,190 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-02-23 20:30:24,190 INFO L861 garLoopResultBuilder]: At program point L29-2(lines 26 35) the Hoare annotation is: true [2022-02-23 20:30:24,190 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 35) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~z~0 100)) [2022-02-23 20:30:24,190 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 34) no Hoare annotation was computed. [2022-02-23 20:30:24,190 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-02-23 20:30:24,191 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 14) the Hoare annotation is: true [2022-02-23 20:30:24,191 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2022-02-23 20:30:24,191 INFO L858 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-02-23 20:30:24,191 INFO L858 garLoopResultBuilder]: For program point L10-2(lines 9 14) no Hoare annotation was computed. [2022-02-23 20:30:24,191 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2022-02-23 20:30:24,191 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 14) no Hoare annotation was computed. [2022-02-23 20:30:24,193 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-23 20:30:24,196 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 20:30:24,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:30:24 BasicIcfg [2022-02-23 20:30:24,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 20:30:24,208 INFO L158 Benchmark]: Toolchain (without parser) took 1120.98ms. Allocated memory was 205.5MB in the beginning and 308.3MB in the end (delta: 102.8MB). Free memory was 146.4MB in the beginning and 230.3MB in the end (delta: -83.8MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2022-02-23 20:30:24,208 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 205.5MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 20:30:24,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.62ms. Allocated memory was 205.5MB in the beginning and 308.3MB in the end (delta: 102.8MB). Free memory was 146.2MB in the beginning and 278.5MB in the end (delta: -132.3MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-02-23 20:30:24,211 INFO L158 Benchmark]: Boogie Preprocessor took 30.34ms. Allocated memory is still 308.3MB. Free memory was 278.5MB in the beginning and 276.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-23 20:30:24,212 INFO L158 Benchmark]: RCFGBuilder took 214.31ms. Allocated memory is still 308.3MB. Free memory was 276.9MB in the beginning and 265.9MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-23 20:30:24,212 INFO L158 Benchmark]: IcfgTransformer took 22.96ms. Allocated memory is still 308.3MB. Free memory was 265.9MB in the beginning and 264.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-23 20:30:24,212 INFO L158 Benchmark]: TraceAbstraction took 617.77ms. Allocated memory is still 308.3MB. Free memory was 264.4MB in the beginning and 230.3MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-02-23 20:30:24,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 205.5MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.62ms. Allocated memory was 205.5MB in the beginning and 308.3MB in the end (delta: 102.8MB). Free memory was 146.2MB in the beginning and 278.5MB in the end (delta: -132.3MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.34ms. Allocated memory is still 308.3MB. Free memory was 278.5MB in the beginning and 276.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 214.31ms. Allocated memory is still 308.3MB. Free memory was 276.9MB in the beginning and 265.9MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 22.96ms. Allocated memory is still 308.3MB. Free memory was 265.9MB in the beginning and 264.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 617.77ms. Allocated memory is still 308.3MB. Free memory was 264.4MB in the beginning and 230.3MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. 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: 11]: 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 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 43 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 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 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-02-23 20:30:24,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...