/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/terminator_03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 15:58:11,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 15:58:11,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 15:58:11,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-27 15:58:11,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 15:58:11,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 15:58:11,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 15:58:11,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 15:58:11,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 15:58:11,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 15:58:11,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 15:58:11,368 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 15:58:11,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 15:58:11,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 15:58:11,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 15:58:11,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 15:58:11,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 15:58:11,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 15:58:11,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 15:58:11,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 15:58:11,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 15:58:11,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 15:58:11,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 15:58:11,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 15:58:11,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 15:58:11,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 15:58:11,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 15:58:11,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 15:58:11,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 15:58:11,371 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 15:58:11,372 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 15:58:11,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 15:58:11,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 15:58:11,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 15:58:11,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 15:58:11,596 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 15:58:11,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-1.c [2022-04-27 15:58:11,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0478d7411/418bd2788eaf4906b38bdc5a4c0a0ce2/FLAG5db4cb92a [2022-04-27 15:58:11,926 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 15:58:11,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03-1.c [2022-04-27 15:58:11,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0478d7411/418bd2788eaf4906b38bdc5a4c0a0ce2/FLAG5db4cb92a [2022-04-27 15:58:12,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0478d7411/418bd2788eaf4906b38bdc5a4c0a0ce2 [2022-04-27 15:58:12,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 15:58:12,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 15:58:12,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 15:58:12,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 15:58:12,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 15:58:12,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e88a875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12, skipping insertion in model container [2022-04-27 15:58:12,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 15:58:12,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 15:58:12,490 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_03-1.c[327,340] [2022-04-27 15:58:12,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 15:58:12,512 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 15:58:12,521 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_03-1.c[327,340] [2022-04-27 15:58:12,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 15:58:12,534 INFO L208 MainTranslator]: Completed translation [2022-04-27 15:58:12,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12 WrapperNode [2022-04-27 15:58:12,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 15:58:12,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 15:58:12,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 15:58:12,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 15:58:12,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 15:58:12,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 15:58:12,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 15:58:12,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 15:58:12,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 15:58:12,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 15:58:12,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-27 15:58:12,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-27 15:58:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 15:58:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 15:58:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 15:58:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 15:58:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 15:58:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 15:58:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 15:58:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 15:58:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 15:58:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 15:58:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 15:58:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 15:58:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 15:58:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 15:58:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 15:58:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 15:58:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 15:58:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 15:58:12,651 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 15:58:12,653 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 15:58:12,779 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 15:58:12,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 15:58:12,784 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 15:58:12,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 03:58:12 BoogieIcfgContainer [2022-04-27 15:58:12,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 15:58:12,786 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 15:58:12,786 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 15:58:12,805 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 15:58:12,808 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 03:58:12" (1/1) ... [2022-04-27 15:58:12,809 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 15:58:21,557 WARN L828 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-27 15:58:25,906 WARN L970 rdanLoopAcceleration]: Unable to prove correctness of quantifier elimination. [2022-04-27 15:58:34,072 WARN L828 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-04-27 15:58:34,397 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-27 15:58:34,397 INFO L91 elerationTransformer]: Accelerated Formula: (and (< v_main_~x~0_5 100) (= v_main_~x~0_4 (+ v_main_~x~0_5 v_main_~y~0_5))) InVars {main_~x~0=v_main_~x~0_5, main_~y~0=v_main_~y~0_5} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} AuxVars[] AssignedVars[main_~x~0] to Formula: (let ((.cse0 (= v_main_~x~0_5 v_main_~x~0_4))) (or (and .cse0 (<= 100 v_main_~x~0_5)) (and (< v_main_~x~0_5 100) (let ((.cse1 (= v_main_~y~0_5 0))) (or (and .cse0 .cse1) (let ((.cse2 (+ v_main_~x~0_4 (* (- 1) v_main_~x~0_5)))) (and (= (mod .cse2 v_main_~y~0_5) 0) (not .cse1) (< 0 (div .cse2 v_main_~y~0_5)) (forall ((v_it_1 Int)) (or (< (+ v_main_~x~0_5 (* v_main_~y~0_5 v_it_1)) 100) (not (<= (+ v_it_1 1) (div (+ v_main_~x~0_4 (* (- 1) v_main_~x~0_5)) v_main_~y~0_5))) (not (<= 1 v_it_1))))))))))) InVars {main_~x~0=v_main_~x~0_5, main_~y~0=v_main_~y~0_5} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_5} AuxVars[] AssignedVars[main_~x~0] [2022-04-27 15:58:34,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 03:58:34 BasicIcfg [2022-04-27 15:58:34,402 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 15:58:34,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 15:58:34,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 15:58:34,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 15:58:34,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 03:58:12" (1/4) ... [2022-04-27 15:58:34,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679c3dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 03:58:34, skipping insertion in model container [2022-04-27 15:58:34,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 03:58:12" (2/4) ... [2022-04-27 15:58:34,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679c3dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 03:58:34, skipping insertion in model container [2022-04-27 15:58:34,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 03:58:12" (3/4) ... [2022-04-27 15:58:34,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679c3dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 03:58:34, skipping insertion in model container [2022-04-27 15:58:34,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 03:58:34" (4/4) ... [2022-04-27 15:58:34,412 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_03-1.cJordan [2022-04-27 15:58:34,424 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 15:58:34,425 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 15:58:34,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 15:58:34,462 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5d603366, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@390e22fe [2022-04-27 15:58:34,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 15:58:34,471 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) [2022-04-27 15:58:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 15:58:34,475 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 15:58:34,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 15:58:34,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 15:58:34,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 15:58:34,480 INFO L85 PathProgramCache]: Analyzing trace with hash -153385852, now seen corresponding path program 1 times [2022-04-27 15:58:34,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 15:58:34,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158867446] [2022-04-27 15:58:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 15:58:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 15:58:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:58:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 15:58:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 15:58:34,686 INFO L290 TraceCheckUtils]: 0: Hoare triple {31#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] 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|) (= (select |v_#length_1| 2) 18) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (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 [2022-04-27 15:58:34,687 INFO L290 TraceCheckUtils]: 1: Hoare triple {23#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 15:58:34,687 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} [66] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 15:58:34,688 INFO L272 TraceCheckUtils]: 0: Hoare triple {23#true} [46] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 15:58:34,689 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] 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|) (= (select |v_#length_1| 2) 18) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (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 [2022-04-27 15:58:34,689 INFO L290 TraceCheckUtils]: 2: Hoare triple {23#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 15:58:34,690 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} [66] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 15:58:34,690 INFO L272 TraceCheckUtils]: 4: Hoare triple {23#true} [47] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#true} is VALID [2022-04-27 15:58:34,691 INFO L290 TraceCheckUtils]: 5: Hoare triple {23#true} [50] mainENTRY-->L18: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~x~0_1 |v_main_#t~nondet4_2|) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~y~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|, main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~x~0=v_main_~x~0_1, main_~y~0=v_main_~y~0_1} AuxVars[] AssignedVars[main_#t~nondet5, main_#t~nondet4, main_~x~0, main_~y~0] {23#true} is VALID [2022-04-27 15:58:34,691 INFO L290 TraceCheckUtils]: 6: Hoare triple {23#true} [53] L18-->L18-1: Formula: (not (< 0 v_main_~y~0_2)) InVars {main_~y~0=v_main_~y~0_2} OutVars{main_~y~0=v_main_~y~0_2} AuxVars[] AssignedVars[] {28#(<= main_~y~0 0)} is VALID [2022-04-27 15:58:34,693 INFO L272 TraceCheckUtils]: 7: Hoare triple {28#(<= main_~y~0 0)} [57] L18-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (or (and (< v_main_~y~0_6 0) (<= 100 v_main_~x~0_6)) (<= v_main_~y~0_6 0)) 1 0)) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {29#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 15:58:34,693 INFO L290 TraceCheckUtils]: 8: Hoare triple {29#(not (= |__VERIFIER_assert_#in~cond| 0))} [59] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_3 |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_3} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {30#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 15:58:34,694 INFO L290 TraceCheckUtils]: 9: Hoare triple {30#(not (= __VERIFIER_assert_~cond 0))} [61] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_1 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-27 15:58:34,694 INFO L290 TraceCheckUtils]: 10: Hoare triple {24#false} [63] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {24#false} is VALID [2022-04-27 15:58:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 15:58:34,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 15:58:34,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158867446] [2022-04-27 15:58:34,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158867446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 15:58:34,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 15:58:34,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 15:58:34,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121669850] [2022-04-27 15:58:34,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 15:58:34,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 11 [2022-04-27 15:58:34,706 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 15:58:34,709 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:58:34,728 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 15:58:34,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 15:58:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 15:58:34,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 15:58:34,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-27 15:58:34,751 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 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:58:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:58:34,965 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-04-27 15:58:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-27 15:58:34,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 11 [2022-04-27 15:58:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 15:58:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:58:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2022-04-27 15:58:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:58:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2022-04-27 15:58:34,977 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 32 transitions. [2022-04-27 15:58:35,017 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 15:58:35,022 INFO L225 Difference]: With dead ends: 28 [2022-04-27 15:58:35,023 INFO L226 Difference]: Without dead ends: 13 [2022-04-27 15:58:35,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-04-27 15:58:35,026 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-27 15:58:35,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 39 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 3 Unchecked, 0.1s Time] [2022-04-27 15:58:35,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-27 15:58:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-27 15:58:35,049 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 15:58:35,049 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) [2022-04-27 15:58:35,061 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) [2022-04-27 15:58:35,061 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) [2022-04-27 15:58:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:58:35,066 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-27 15:58:35,067 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-27 15:58:35,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:58:35,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 15:58:35,067 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. [2022-04-27 15:58:35,067 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. [2022-04-27 15:58:35,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 15:58:35,069 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-27 15:58:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-27 15:58:35,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 15:58:35,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 15:58:35,069 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 15:58:35,070 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 15:58:35,070 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) [2022-04-27 15:58:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-27 15:58:35,071 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-27 15:58:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 15:58:35,072 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-27 15:58:35,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 15:58:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-27 15:58:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 15:58:35,072 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 15:58:35,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 15:58:35,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 15:58:35,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 15:58:35,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 15:58:35,074 INFO L85 PathProgramCache]: Analyzing trace with hash -490531812, now seen corresponding path program 1 times [2022-04-27 15:58:35,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 15:58:35,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126264036] [2022-04-27 15:58:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 15:58:35,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 15:58:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 15:58:35,100 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-27 15:58:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-27 15:58:35,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-27 15:58:35,123 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-27 15:58:35,124 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 15:58:35,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-27 15:58:35,128 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-27 15:58:35,131 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 15:58:35,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 03:58:35 BasicIcfg [2022-04-27 15:58:35,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 15:58:35,150 INFO L158 Benchmark]: Toolchain (without parser) took 22784.22ms. Allocated memory was 175.1MB in the beginning and 227.5MB in the end (delta: 52.4MB). Free memory was 127.6MB in the beginning and 200.0MB in the end (delta: -72.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 15:58:35,151 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 15:58:35,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.17ms. Allocated memory is still 175.1MB. Free memory was 127.4MB in the beginning and 153.5MB in the end (delta: -26.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-27 15:58:35,153 INFO L158 Benchmark]: Boogie Preprocessor took 16.70ms. Allocated memory is still 175.1MB. Free memory was 153.5MB in the beginning and 151.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-27 15:58:35,155 INFO L158 Benchmark]: RCFGBuilder took 232.74ms. Allocated memory is still 175.1MB. Free memory was 151.9MB in the beginning and 140.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-27 15:58:35,155 INFO L158 Benchmark]: IcfgTransformer took 21616.16ms. Allocated memory is still 175.1MB. Free memory was 140.9MB in the beginning and 96.4MB in the end (delta: 44.5MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-04-27 15:58:35,155 INFO L158 Benchmark]: TraceAbstraction took 745.44ms. Allocated memory was 175.1MB in the beginning and 227.5MB in the end (delta: 52.4MB). Free memory was 95.8MB in the beginning and 200.0MB in the end (delta: -104.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 15:58:35,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 1 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.17ms. Allocated memory is still 175.1MB. Free memory was 127.4MB in the beginning and 153.5MB in the end (delta: -26.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.70ms. Allocated memory is still 175.1MB. Free memory was 153.5MB in the beginning and 151.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 232.74ms. Allocated memory is still 175.1MB. Free memory was 151.9MB in the beginning and 140.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 21616.16ms. Allocated memory is still 175.1MB. Free memory was 140.9MB in the beginning and 96.4MB in the end (delta: 44.5MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * TraceAbstraction took 745.44ms. Allocated memory was 175.1MB in the beginning and 227.5MB in the end (delta: 52.4MB). Free memory was 95.8MB in the beginning and 200.0MB in the end (delta: -104.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int x=__VERIFIER_nondet_int(); [L16] int y=__VERIFIER_nondet_int(); [L18] COND TRUE y>0 VAL [x=100, y=4] [L20] COND FALSE !(x<100) VAL [x=100, y=4] [L25] CALL __VERIFIER_assert(y<=0 || (y<0 && x>=100)) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - 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, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 3 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 18 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-27 15:58:35,176 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...