/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/loop-zilu/benchmark33_linear.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 17:58:51,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 17:58:51,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 17:58:51,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 17:58:51,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 17:58:51,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 17:58:51,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 17:58:51,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 17:58:51,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 17:58:51,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 17:58:51,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 17:58:51,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 17:58:51,291 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 17:58:51,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 17:58:51,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 17:58:51,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 17:58:51,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 17:58:51,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 17:58:51,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 17:58:51,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 17:58:51,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 17:58:51,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-07 17:58:51,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 17:58:51,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 17:58:51,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 17:58:51,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 17:58:51,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 17:58:51,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 17:58:51,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 17:58:51,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 17:58:51,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 17:58:51,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 17:58:51,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 17:58:51,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 17:58:51,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 17:58:51,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 17:58:51,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 17:58:51,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 17:58:51,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 17:58:51,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 17:58:51,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 17:58:51,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 17:58:51,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 17:58:51,327 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 17:58:51,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 17:58:51,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 17:58:51,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 17:58:51,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 17:58:51,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 17:58:51,594 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 17:58:51,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark33_linear.i [2022-04-07 17:58:51,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56dda9287/5d842f8242ed415086f295c1a37ed0bb/FLAGb60cd8f9a [2022-04-07 17:58:52,009 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 17:58:52,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark33_linear.i [2022-04-07 17:58:52,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56dda9287/5d842f8242ed415086f295c1a37ed0bb/FLAGb60cd8f9a [2022-04-07 17:58:52,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56dda9287/5d842f8242ed415086f295c1a37ed0bb [2022-04-07 17:58:52,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 17:58:52,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 17:58:52,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 17:58:52,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 17:58:52,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 17:58:52,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@239210e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52, skipping insertion in model container [2022-04-07 17:58:52,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 17:58:52,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 17:58:52,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark33_linear.i[868,881] [2022-04-07 17:58:52,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 17:58:52,589 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 17:58:52,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark33_linear.i[868,881] [2022-04-07 17:58:52,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 17:58:52,616 INFO L208 MainTranslator]: Completed translation [2022-04-07 17:58:52,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52 WrapperNode [2022-04-07 17:58:52,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 17:58:52,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 17:58:52,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 17:58:52,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 17:58:52,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 17:58:52,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 17:58:52,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 17:58:52,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 17:58:52,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 17:58:52,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 17:58:52,717 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) [2022-04-07 17:58:52,719 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 [2022-04-07 17:58:52,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 17:58:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 17:58:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 17:58:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 17:58:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 17:58:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 17:58:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-07 17:58:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-07 17:58:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 17:58:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 17:58:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 17:58:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 17:58:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 17:58:52,803 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 17:58:52,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 17:58:52,912 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 17:58:52,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 17:58:52,919 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 17:58:52,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 05:58:52 BoogieIcfgContainer [2022-04-07 17:58:52,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 17:58:52,922 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 17:58:52,922 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 17:58:52,923 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 17:58:52,926 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 05:58:52" (1/1) ... [2022-04-07 17:58:52,928 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-07 17:58:53,897 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 1 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-07 17:58:53,898 INFO L91 elerationTransformer]: Accelerated Formula: (and (< v_main_~x~0_3 100) (<= 0 v_main_~x~0_3) (= (+ v_main_~x~0_3 1) v_main_~x~0_2)) InVars {main_~x~0=v_main_~x~0_3} OutVars{main_~x~0=v_main_~x~0_2, main_#t~post2=|v_main_#t~post2_1|} AuxVars[] AssignedVars[main_~x~0, main_#t~post2] to Formula: (let ((.cse0 (<= 0 v_main_~x~0_3))) (or (and .cse0 (< v_main_~x~0_3 v_main_~x~0_2) (< v_main_~x~0_2 101)) (and (= |v_main_#t~post2_3| |v_main_#t~post2_1|) (= v_main_~x~0_3 v_main_~x~0_2) (or (not (< v_main_~x~0_3 100)) (not .cse0))))) InVars {main_~x~0=v_main_~x~0_3, main_#t~post2=|v_main_#t~post2_3|} OutVars{main_~x~0=v_main_~x~0_2, main_#t~post2=|v_main_#t~post2_1|} AuxVars[] AssignedVars[main_~x~0, main_#t~post2] [2022-04-07 17:58:53,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 05:58:53 BasicIcfg [2022-04-07 17:58:53,904 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 17:58:53,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 17:58:53,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 17:58:53,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 17:58:53,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 05:58:52" (1/4) ... [2022-04-07 17:58:53,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7151bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 05:58:53, skipping insertion in model container [2022-04-07 17:58:53,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:58:52" (2/4) ... [2022-04-07 17:58:53,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7151bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 05:58:53, skipping insertion in model container [2022-04-07 17:58:53,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 05:58:52" (3/4) ... [2022-04-07 17:58:53,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7151bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 05:58:53, skipping insertion in model container [2022-04-07 17:58:53,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 05:58:53" (4/4) ... [2022-04-07 17:58:53,916 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark33_linear.iJordan [2022-04-07 17:58:53,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-07 17:58:53,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 17:58:53,962 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 17:58:53,967 INFO L340 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 [2022-04-07 17:58:53,967 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 17:58:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-07 17:58:53,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 17:58:53,985 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 17:58:53,986 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 17:58:53,986 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 17:58:53,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 17:58:53,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times [2022-04-07 17:58:53,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 17:58:53,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588161822] [2022-04-07 17:58:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 17:58:54,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 17:58:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:58:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 17:58:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:58:54,148 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] 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) (= (select |v_#length_1| 2) 21) (= (select |v_#valid_1| 1) 1) (= 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|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-07 17:58:54,149 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 17:58:54,149 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 17:58:54,150 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 17:58:54,151 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] 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) (= (select |v_#length_1| 2) 21) (= (select |v_#valid_1| 1) 1) (= 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|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {23#true} is VALID [2022-04-07 17:58:54,152 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 17:58:54,152 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 17:58:54,153 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 17:58:54,153 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [52] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~x~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0, main_#t~nondet1] {23#true} is VALID [2022-04-07 17:58:54,153 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [55] L21-->L22-2: Formula: (<= 0 v_main_~x~0_7) InVars {main_~x~0=v_main_~x~0_7} OutVars{main_~x~0=v_main_~x~0_7} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-07 17:58:54,154 INFO L290 TraceCheckUtils]: 7: Hoare triple {23#true} [57] L22-2-->L22-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 17:58:54,154 INFO L272 TraceCheckUtils]: 8: Hoare triple {24#false} [60] L22-3-->__VERIFIER_assertENTRY: Formula: (= (ite (<= 100 v_main_~x~0_8) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {24#false} is VALID [2022-04-07 17:58:54,154 INFO L290 TraceCheckUtils]: 9: Hoare triple {24#false} [62] __VERIFIER_assertENTRY-->L15: 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] {24#false} is VALID [2022-04-07 17:58:54,155 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [63] L15-->L16: 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[] {24#false} is VALID [2022-04-07 17:58:54,155 INFO L290 TraceCheckUtils]: 11: Hoare triple {24#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-07 17:58:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 17:58:54,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 17:58:54,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588161822] [2022-04-07 17:58:54,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588161822] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 17:58:54,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 17:58:54,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 17:58:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237670358] [2022-04-07 17:58:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 17:58:54,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-04-07 17:58:54,176 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 17:58:54,179 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,195 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 17:58:54,195 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 17:58:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 17:58:54,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 17:58:54,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 17:58:54,229 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:58:54,283 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-04-07 17:58:54,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 17:58:54,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-04-07 17:58:54,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 17:58:54,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-04-07 17:58:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-04-07 17:58:54,301 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 23 transitions. [2022-04-07 17:58:54,328 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 17:58:54,335 INFO L225 Difference]: With dead ends: 20 [2022-04-07 17:58:54,335 INFO L226 Difference]: Without dead ends: 13 [2022-04-07 17:58:54,336 INFO L912 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 [2022-04-07 17:58:54,339 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 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 [2022-04-07 17:58:54,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 17:58:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-07 17:58:54,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-07 17:58:54,363 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 17:58:54,363 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-04-07 17:58:54,364 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-04-07 17:58:54,364 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-04-07 17:58:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:58:54,367 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 17:58:54,367 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 17:58:54,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:58:54,367 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 17:58:54,368 INFO L74 IsIncluded]: Start isIncluded. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) Second operand 13 states. [2022-04-07 17:58:54,368 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) Second operand 13 states. [2022-04-07 17:58:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:58:54,370 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 17:58:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 17:58:54,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:58:54,370 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 17:58:54,370 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 17:58:54,371 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 17:58:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-04-07 17:58:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-07 17:58:54,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12 [2022-04-07 17:58:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 17:58:54,373 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-07 17:58:54,374 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 17:58:54,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 17:58:54,375 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 17:58:54,375 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 17:58:54,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 17:58:54,375 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 17:58:54,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 17:58:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times [2022-04-07 17:58:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 17:58:54,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568443627] [2022-04-07 17:58:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 17:58:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 17:58:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:58:54,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 17:58:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:58:54,499 INFO L290 TraceCheckUtils]: 0: Hoare triple {99#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] 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) (= (select |v_#length_1| 2) 21) (= (select |v_#valid_1| 1) 1) (= 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|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {90#true} is VALID [2022-04-07 17:58:54,500 INFO L290 TraceCheckUtils]: 1: Hoare triple {90#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-07 17:58:54,500 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {90#true} {90#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-07 17:58:54,501 INFO L272 TraceCheckUtils]: 0: Hoare triple {90#true} [48] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {99#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 17:58:54,502 INFO L290 TraceCheckUtils]: 1: Hoare triple {99#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [50] 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) (= (select |v_#length_1| 2) 21) (= (select |v_#valid_1| 1) 1) (= 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|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {90#true} is VALID [2022-04-07 17:58:54,502 INFO L290 TraceCheckUtils]: 2: Hoare triple {90#true} [53] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-07 17:58:54,504 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {90#true} {90#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-07 17:58:54,504 INFO L272 TraceCheckUtils]: 4: Hoare triple {90#true} [49] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {90#true} is VALID [2022-04-07 17:58:54,504 INFO L290 TraceCheckUtils]: 5: Hoare triple {90#true} [52] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet1_2| 2147483647) (= v_main_~x~0_4 |v_main_#t~nondet1_2|) (<= 0 (+ |v_main_#t~nondet1_2| 2147483648))) InVars {main_#t~nondet1=|v_main_#t~nondet1_2|} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[main_~x~0, main_#t~nondet1] {90#true} is VALID [2022-04-07 17:58:54,505 INFO L290 TraceCheckUtils]: 6: Hoare triple {90#true} [55] L21-->L22-2: Formula: (<= 0 v_main_~x~0_7) InVars {main_~x~0=v_main_~x~0_7} OutVars{main_~x~0=v_main_~x~0_7} AuxVars[] AssignedVars[] {95#(< 0 (+ main_~x~0 1))} is VALID [2022-04-07 17:58:54,506 INFO L290 TraceCheckUtils]: 7: Hoare triple {95#(< 0 (+ main_~x~0 1))} [58] L22-2-->L22-3: Formula: (or (not (<= 0 v_main_~x~0_1)) (not (< v_main_~x~0_1 100))) InVars {main_~x~0=v_main_~x~0_1} OutVars{main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[] {96#(< 99 main_~x~0)} is VALID [2022-04-07 17:58:54,507 INFO L272 TraceCheckUtils]: 8: Hoare triple {96#(< 99 main_~x~0)} [60] L22-3-->__VERIFIER_assertENTRY: Formula: (= (ite (<= 100 v_main_~x~0_8) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {97#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 17:58:54,507 INFO L290 TraceCheckUtils]: 9: Hoare triple {97#(not (= |__VERIFIER_assert_#in~cond| 0))} [62] __VERIFIER_assertENTRY-->L15: 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] {98#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 17:58:54,508 INFO L290 TraceCheckUtils]: 10: Hoare triple {98#(not (= __VERIFIER_assert_~cond 0))} [63] L15-->L16: 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[] {91#false} is VALID [2022-04-07 17:58:54,508 INFO L290 TraceCheckUtils]: 11: Hoare triple {91#false} [65] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {91#false} is VALID [2022-04-07 17:58:54,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 17:58:54,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 17:58:54,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568443627] [2022-04-07 17:58:54,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568443627] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 17:58:54,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 17:58:54,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-07 17:58:54,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302284313] [2022-04-07 17:58:54,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 17:58:54,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 12 [2022-04-07 17:58:54,512 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 17:58:54,513 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,526 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 17:58:54,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-07 17:58:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 17:58:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-07 17:58:54,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-04-07 17:58:54,530 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:58:54,653 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-04-07 17:58:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-07 17:58:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 12 [2022-04-07 17:58:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 17:58:54,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2022-04-07 17:58:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2022-04-07 17:58:54,658 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2022-04-07 17:58:54,672 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 17:58:54,672 INFO L225 Difference]: With dead ends: 11 [2022-04-07 17:58:54,672 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 17:58:54,675 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-04-07 17:58:54,677 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 17:58:54,678 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 17:58:54,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 17:58:54,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 17:58:54,679 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 17:58:54,679 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) [2022-04-07 17:58:54,679 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) [2022-04-07 17:58:54,679 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) [2022-04-07 17:58:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:58:54,679 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 17:58:54,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 17:58:54,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:58:54,680 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 17:58:54,680 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. [2022-04-07 17:58:54,680 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. [2022-04-07 17:58:54,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:58:54,680 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 17:58:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 17:58:54,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:58:54,681 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 17:58:54,681 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 17:58:54,681 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 17:58:54,681 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) [2022-04-07 17:58:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 17:58:54,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-04-07 17:58:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 17:58:54,682 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 17:58:54,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-04-07 17:58:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 17:58:54,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:58:54,685 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 17:58:54,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 17:58:54,687 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-07 17:58:54,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 17:58:54,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 05:58:54 BasicIcfg [2022-04-07 17:58:54,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 17:58:54,698 INFO L158 Benchmark]: Toolchain (without parser) took 2275.48ms. Allocated memory was 176.2MB in the beginning and 259.0MB in the end (delta: 82.8MB). Free memory was 120.6MB in the beginning and 144.8MB in the end (delta: -24.3MB). Peak memory consumption was 57.2MB. Max. memory is 8.0GB. [2022-04-07 17:58:54,698 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 17:58:54,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.39ms. Allocated memory was 176.2MB in the beginning and 259.0MB in the end (delta: 82.8MB). Free memory was 120.4MB in the beginning and 233.5MB in the end (delta: -113.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-07 17:58:54,699 INFO L158 Benchmark]: Boogie Preprocessor took 70.67ms. Allocated memory is still 259.0MB. Free memory was 233.5MB in the beginning and 231.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 17:58:54,699 INFO L158 Benchmark]: RCFGBuilder took 231.86ms. Allocated memory is still 259.0MB. Free memory was 231.1MB in the beginning and 219.3MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-07 17:58:54,700 INFO L158 Benchmark]: IcfgTransformer took 982.16ms. Allocated memory is still 259.0MB. Free memory was 219.3MB in the beginning and 192.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-04-07 17:58:54,700 INFO L158 Benchmark]: TraceAbstraction took 789.71ms. Allocated memory is still 259.0MB. Free memory was 191.5MB in the beginning and 145.4MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-04-07 17:58:54,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 1 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.39ms. Allocated memory was 176.2MB in the beginning and 259.0MB in the end (delta: 82.8MB). Free memory was 120.4MB in the beginning and 233.5MB in the end (delta: -113.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.67ms. Allocated memory is still 259.0MB. Free memory was 233.5MB in the beginning and 231.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 231.86ms. Allocated memory is still 259.0MB. Free memory was 231.1MB in the beginning and 219.3MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 982.16ms. Allocated memory is still 259.0MB. Free memory was 219.3MB in the beginning and 192.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 789.71ms. Allocated memory is still 259.0MB. Free memory was 191.5MB in the beginning and 145.4MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. 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: 16]: 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, 20 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, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 28 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 0 StatesRemovedByMinimization, 0 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, 46 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! [2022-04-07 17:58:54,739 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...