/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 15:04:08,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 15:04:08,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 15:04:08,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-17 15:04:08,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 15:04:08,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 15:04:08,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 15:04:08,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 15:04:08,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 15:04:08,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 15:04:08,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 15:04:08,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 15:04:08,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 15:04:08,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 15:04:08,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 15:04:08,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 15:04:08,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 15:04:08,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 15:04:08,740 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 15:04:08,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 15:04:08,740 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 15:04:08,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 15:04:08,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 15:04:08,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 15:04:08,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 15:04:08,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 15:04:08,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 15:04:08,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 15:04:08,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 15:04:08,742 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 15:04:08,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 15:04:08,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 15:04:08,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 15:04:08,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 15:04:08,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 15:04:08,966 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 15:04:08,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c [2022-03-17 15:04:09,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884e4065a/e0ac7078795c40b0a9efda82d868dd22/FLAGc94ffc328 [2022-03-17 15:04:09,387 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 15:04:09,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+cfa-reducer.c [2022-03-17 15:04:09,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884e4065a/e0ac7078795c40b0a9efda82d868dd22/FLAGc94ffc328 [2022-03-17 15:04:09,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884e4065a/e0ac7078795c40b0a9efda82d868dd22 [2022-03-17 15:04:09,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 15:04:09,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 15:04:09,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 15:04:09,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 15:04:09,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 15:04:09,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de0ccfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09, skipping insertion in model container [2022-03-17 15:04:09,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 15:04:09,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 15:04:09,560 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-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2022-03-17 15:04:09,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 15:04:09,570 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 15:04:09,591 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-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2022-03-17 15:04:09,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 15:04:09,604 INFO L208 MainTranslator]: Completed translation [2022-03-17 15:04:09,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09 WrapperNode [2022-03-17 15:04:09,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 15:04:09,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 15:04:09,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 15:04:09,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 15:04:09,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 15:04:09,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 15:04:09,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 15:04:09,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 15:04:09,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:09,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 15:04:09,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 15:04:09,672 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) [2022-03-17 15:04:09,699 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 [2022-03-17 15:04:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 15:04:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 15:04:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 15:04:09,710 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-17 15:04:09,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 15:04:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 15:04:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 15:04:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 15:04:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 15:04:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-17 15:04:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-17 15:04:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 15:04:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 15:04:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 15:04:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 15:04:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 15:04:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 15:04:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 15:04:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 15:04:09,772 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 15:04:09,773 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 15:04:09,897 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 15:04:09,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 15:04:09,902 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-17 15:04:09,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:04:09 BoogieIcfgContainer [2022-03-17 15:04:09,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 15:04:09,914 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 15:04:09,914 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 15:04:09,915 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 15:04:09,918 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:04:09" (1/1) ... [2022-03-17 15:04:10,509 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-17 15:04:10,509 INFO L91 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~main__i~0_3 1) v_main_~main__i~0_2) (= v_main_~main__sum~0_2 (+ v_main_~main__sum~0_3 v_main_~main__i~0_3)) (<= v_main_~main__i~0_3 v_main_~main__n~0_3)) InVars {main_~main__n~0=v_main_~main__n~0_3, main_~main__sum~0=v_main_~main__sum~0_3, main_~main__i~0=v_main_~main__i~0_3} OutVars{main_~main__n~0=v_main_~main__n~0_3, main_~main__sum~0=v_main_~main__sum~0_2, main_~main__i~0=v_main_~main__i~0_2} AuxVars[] AssignedVars[main_~main__sum~0, main_~main__i~0] to Formula: (let ((.cse1 (* (- 1) v_main_~main__i~0_3))) (or (and (= v_main_~main__i~0_3 v_main_~main__i~0_2) (= v_main_~main__sum~0_3 v_main_~main__sum~0_2) (< v_main_~main__n~0_3 v_main_~main__i~0_3)) (let ((.cse0 (div (+ .cse1 v_main_~main__i~0_2) 2))) (and (<= .cse0 (+ (div (+ (- 1) .cse1 v_main_~main__n~0_3) 2) 1)) (= (mod (+ v_main_~main__i~0_3 v_main_~main__i~0_2) 2) 0) (< 0 .cse0) (= (+ .cse0 v_main_~main__sum~0_2) (+ (* 2 (* .cse0 v_main_~main__i~0_3)) v_main_~main__sum~0_3 (* 2 (* .cse0 .cse0)))))) (let ((.cse2 (div (+ (- 1) .cse1 v_main_~main__i~0_2) 2))) (and (= (mod (+ v_main_~main__i~0_3 v_main_~main__i~0_2 1) 2) 0) (<= .cse2 (div (+ .cse1 v_main_~main__n~0_3) 2)) (<= 0 .cse2) (= v_main_~main__sum~0_2 (+ (* 2 (* .cse2 v_main_~main__i~0_3)) (* (* .cse2 .cse2) 2) v_main_~main__sum~0_3 .cse2 v_main_~main__i~0_3)))))) InVars {main_~main__n~0=v_main_~main__n~0_3, main_~main__sum~0=v_main_~main__sum~0_3, main_~main__i~0=v_main_~main__i~0_3} OutVars{main_~main__n~0=v_main_~main__n~0_3, main_~main__sum~0=v_main_~main__sum~0_2, main_~main__i~0=v_main_~main__i~0_2} AuxVars[] AssignedVars[main_~main__sum~0, main_~main__i~0] [2022-03-17 15:04:10,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 03:04:10 BasicIcfg [2022-03-17 15:04:10,514 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 15:04:10,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 15:04:10,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 15:04:10,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 15:04:10,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:04:09" (1/4) ... [2022-03-17 15:04:10,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4186c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:04:10, skipping insertion in model container [2022-03-17 15:04:10,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:04:09" (2/4) ... [2022-03-17 15:04:10,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4186c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:04:10, skipping insertion in model container [2022-03-17 15:04:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 03:04:09" (3/4) ... [2022-03-17 15:04:10,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4186c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:04:10, skipping insertion in model container [2022-03-17 15:04:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 03:04:10" (4/4) ... [2022-03-17 15:04:10,520 INFO L111 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.cJordan [2022-03-17 15:04:10,524 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 15:04:10,524 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 15:04:10,555 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 15:04:10,560 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 [2022-03-17 15:04:10,560 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 15:04:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-17 15:04:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-17 15:04:10,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 15:04:10,576 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 15:04:10,577 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 15:04:10,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 15:04:10,581 INFO L85 PathProgramCache]: Analyzing trace with hash 323261602, now seen corresponding path program 1 times [2022-03-17 15:04:10,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 15:04:10,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214293546] [2022-03-17 15:04:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:04:10,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 15:04:10,673 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-17 15:04:10,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990838874] [2022-03-17 15:04:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:04:10,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 15:04:10,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 15:04:10,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 15:04:10,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 15:04:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:04:10,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 15:04:10,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 15:04:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 15:04:10,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 15:04:10,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 15:04:10,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214293546] [2022-03-17 15:04:10,825 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-17 15:04:10,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990838874] [2022-03-17 15:04:10,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990838874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 15:04:10,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 15:04:10,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 15:04:10,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098009015] [2022-03-17 15:04:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 15:04:10,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 15:04:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 15:04:10,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 15:04:10,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-17 15:04:10,865 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 15:04:10,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 15:04:10,890 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-03-17 15:04:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 15:04:10,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-03-17 15:04:10,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 15:04:10,902 INFO L225 Difference]: With dead ends: 19 [2022-03-17 15:04:10,902 INFO L226 Difference]: Without dead ends: 13 [2022-03-17 15:04:10,904 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-17 15:04:10,906 INFO L912 BasicCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 15:04:10,907 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 15:04:10,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-03-17 15:04:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-03-17 15:04:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 15:04:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-03-17 15:04:10,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-03-17 15:04:10,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 15:04:10,931 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-03-17 15:04:10,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 15:04:10,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-03-17 15:04:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-17 15:04:10,932 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 15:04:10,932 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 15:04:10,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 15:04:11,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-17 15:04:11,160 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 15:04:11,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 15:04:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1431144312, now seen corresponding path program 1 times [2022-03-17 15:04:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 15:04:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162106048] [2022-03-17 15:04:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:04:11,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 15:04:11,172 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-17 15:04:11,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284549823] [2022-03-17 15:04:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 15:04:11,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 15:04:11,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 15:04:11,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 15:04:11,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 15:04:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 15:04:11,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-17 15:04:11,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 15:04:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 15:04:14,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 15:04:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 15:04:21,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 15:04:21,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162106048] [2022-03-17 15:04:21,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-17 15:04:21,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284549823] [2022-03-17 15:04:21,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284549823] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 15:04:21,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-03-17 15:04:21,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-03-17 15:04:21,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674454463] [2022-03-17 15:04:21,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-03-17 15:04:21,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 15:04:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 15:04:21,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 15:04:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=46, Unknown=2, NotChecked=0, Total=72 [2022-03-17 15:04:21,183 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 15:04:22,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-03-17 15:04:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 15:04:25,636 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-03-17 15:04:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 15:04:25,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-17 15:04:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 15:04:25,637 INFO L225 Difference]: With dead ends: 11 [2022-03-17 15:04:25,637 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 15:04:25,638 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=31, Invalid=56, Unknown=3, NotChecked=0, Total=90 [2022-03-17 15:04:25,639 INFO L912 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 15:04:25,639 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 5 Unchecked, 2.0s Time] [2022-03-17 15:04:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 15:04:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 15:04:25,640 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) [2022-03-17 15:04:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 15:04:25,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-17 15:04:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 15:04:25,641 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 15:04:25,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 15:04:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 15:04:25,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 15:04:25,643 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 15:04:25,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-17 15:04:25,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-17 15:04:25,846 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-17 15:04:25,847 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 15:04:25,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:04:25 BasicIcfg [2022-03-17 15:04:25,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 15:04:25,851 INFO L158 Benchmark]: Toolchain (without parser) took 16444.69ms. Allocated memory was 184.5MB in the beginning and 302.0MB in the end (delta: 117.4MB). Free memory was 130.5MB in the beginning and 232.2MB in the end (delta: -101.8MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. [2022-03-17 15:04:25,851 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 15:04:25,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.04ms. Allocated memory is still 184.5MB. Free memory was 130.3MB in the beginning and 156.2MB in the end (delta: -26.0MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-03-17 15:04:25,852 INFO L158 Benchmark]: Boogie Preprocessor took 37.09ms. Allocated memory is still 184.5MB. Free memory was 156.2MB in the beginning and 154.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-17 15:04:25,853 INFO L158 Benchmark]: RCFGBuilder took 259.73ms. Allocated memory is still 184.5MB. Free memory was 154.7MB in the beginning and 144.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-17 15:04:25,853 INFO L158 Benchmark]: IcfgTransformer took 599.89ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 128.5MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-17 15:04:25,854 INFO L158 Benchmark]: TraceAbstraction took 15335.36ms. Allocated memory was 184.5MB in the beginning and 302.0MB in the end (delta: 117.4MB). Free memory was 127.9MB in the beginning and 232.2MB in the end (delta: -104.3MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2022-03-17 15:04:25,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 198.04ms. Allocated memory is still 184.5MB. Free memory was 130.3MB in the beginning and 156.2MB in the end (delta: -26.0MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.09ms. Allocated memory is still 184.5MB. Free memory was 156.2MB in the beginning and 154.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 259.73ms. Allocated memory is still 184.5MB. Free memory was 154.7MB in the beginning and 144.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 599.89ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 128.5MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 15335.36ms. Allocated memory was 184.5MB in the beginning and 302.0MB in the end (delta: 117.4MB). Free memory was 127.9MB in the beginning and 232.2MB in the end (delta: -104.3MB). Peak memory consumption was 14.2MB. 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: 49]: 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 3 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 5 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 23 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 0.7s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 1 QuantifiedInterpolants, 370 SizeOfPredicates, 6 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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! [2022-03-17 15:04:25,877 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...